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First question.

B
Brian
Mon, Jun 7, 2021 1:21 AM

Hey gang B here. Since I first introduced myself a while back I have been
doing a lot of researching this GMC stuff. By that I mean reading past
posts that you people have been posting for a long time. Love the fact you
can search a subject and pull up tons of past posts and information on it.

But there seems to be many different opinions on everything. That's a good
thing but for a newbie it can make your head spin. I'll give you an example
the gas tanks. I have read you should take them to a radiator shop to have
them cleaned. Sounds logical. Then I  read you can do it yourself by using
this method or that method . Sounds logical. Then I  read you dont want to
remove the rust because it will rust twice as bad. Hard to decide which
advice to follow if you know what I mean.

I have seen several videos regarding jacking up your motorhome. One said GM
mechanics know that you should jack it up here otherwise you can break the
windshield.  Another one said you have to jack up the back first or you can
break a windshield. Then I read post that said that's b.s.

So my first question is what is the proper way to get this thing off the
ground. I certainly don't want to bust a windshield trying to change the
oil.

Thanks
B

Hey gang B here. Since I first introduced myself a while back I have been doing a lot of researching this GMC stuff. By that I mean reading past posts that you people have been posting for a long time. Love the fact you can search a subject and pull up tons of past posts and information on it. But there seems to be many different opinions on everything. That's a good thing but for a newbie it can make your head spin. I'll give you an example the gas tanks. I have read you should take them to a radiator shop to have them cleaned. Sounds logical. Then I read you can do it yourself by using this method or that method . Sounds logical. Then I read you dont want to remove the rust because it will rust twice as bad. Hard to decide which advice to follow if you know what I mean. I have seen several videos regarding jacking up your motorhome. One said GM mechanics know that you should jack it up here otherwise you can break the windshield. Another one said you have to jack up the back first or you can break a windshield. Then I read post that said that's b.s. So my first question is what is the proper way to get this thing off the ground. I certainly don't want to bust a windshield trying to change the oil. Thanks B
ES
Emery Stora
Mon, Jun 7, 2021 3:44 AM

Brian
Before I give you a reply with advice please tell us what year GMC you own. Advice will vary depending which year you have.

Emery Stora
77 Kingsley
Frederick CO

On Jun 6, 2021, at 6:22 PM, Brian patchesthehunter@gmail.com wrote:

Hey gang B here. Since I first introduced myself a while back I have been
doing a lot of researching this GMC stuff. By that I mean reading past
posts that you people have been posting for a long time. Love the fact you
can search a subject and pull up tons of past posts and information on it.

But there seems to be many different opinions on everything. That's a good
thing but for a newbie it can make your head spin. I'll give you an example
the gas tanks. I have read you should take them to a radiator shop to have
them cleaned. Sounds logical. Then I  read you can do it yourself by using
this method or that method . Sounds logical. Then I  read you dont want to
remove the rust because it will rust twice as bad. Hard to decide which
advice to follow if you know what I mean.

I have seen several videos regarding jacking up your motorhome. One said GM
mechanics know that you should jack it up here otherwise you can break the
windshield.  Another one said you have to jack up the back first or you can
break a windshield. Then I read post that said that's b.s.

So my first question is what is the proper way to get this thing off the
ground. I certainly don't want to bust a windshield trying to change the
oil.

Thanks
B


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Brian Before I give you a reply with advice please tell us what year GMC you own. Advice will vary depending which year you have. Emery Stora 77 Kingsley Frederick CO > On Jun 6, 2021, at 6:22 PM, Brian <patchesthehunter@gmail.com> wrote: > > Hey gang B here. Since I first introduced myself a while back I have been > doing a lot of researching this GMC stuff. By that I mean reading past > posts that you people have been posting for a long time. Love the fact you > can search a subject and pull up tons of past posts and information on it. > > But there seems to be many different opinions on everything. That's a good > thing but for a newbie it can make your head spin. I'll give you an example > the gas tanks. I have read you should take them to a radiator shop to have > them cleaned. Sounds logical. Then I read you can do it yourself by using > this method or that method . Sounds logical. Then I read you dont want to > remove the rust because it will rust twice as bad. Hard to decide which > advice to follow if you know what I mean. > > I have seen several videos regarding jacking up your motorhome. One said GM > mechanics know that you should jack it up here otherwise you can break the > windshield. Another one said you have to jack up the back first or you can > break a windshield. Then I read post that said that's b.s. > > So my first question is what is the proper way to get this thing off the > ground. I certainly don't want to bust a windshield trying to change the > oil. > > Thanks > B > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options:
B
Brian
Mon, Jun 7, 2021 12:55 PM

Hi Emery

Thanks for responding it's a 1973.

Brian

On Sunday, June 6, 2021, Emery Stora via Gmclist gmclist@list.gmcnet.org
wrote:

Brian
Before I give you a reply with advice please tell us what year GMC you
own. Advice will vary depending which year you have.

Emery Stora
77 Kingsley
Frederick CO

On Jun 6, 2021, at 6:22 PM, Brian patchesthehunter@gmail.com wrote:

Hey gang B here. Since I first introduced myself a while back I have

been

doing a lot of researching this GMC stuff. By that I mean reading past
posts that you people have been posting for a long time. Love the fact

you

can search a subject and pull up tons of past posts and information on

it.

But there seems to be many different opinions on everything. That's a

good

thing but for a newbie it can make your head spin. I'll give you an

example

the gas tanks. I have read you should take them to a radiator shop to

have

them cleaned. Sounds logical. Then I  read you can do it yourself by

using

this method or that method . Sounds logical. Then I  read you dont want

to

remove the rust because it will rust twice as bad. Hard to decide which
advice to follow if you know what I mean.

I have seen several videos regarding jacking up your motorhome. One said

GM

mechanics know that you should jack it up here otherwise you can break

the

windshield.  Another one said you have to jack up the back first or you

can

break a windshield. Then I read post that said that's b.s.

So my first question is what is the proper way to get this thing off the
ground. I certainly don't want to bust a windshield trying to change the
oil.

Thanks
B


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Unsubscribe or Change List Options:


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Hi Emery Thanks for responding it's a 1973. Brian On Sunday, June 6, 2021, Emery Stora via Gmclist <gmclist@list.gmcnet.org> wrote: > Brian > Before I give you a reply with advice please tell us what year GMC you > own. Advice will vary depending which year you have. > > Emery Stora > 77 Kingsley > Frederick CO > > > On Jun 6, 2021, at 6:22 PM, Brian <patchesthehunter@gmail.com> wrote: > > > > Hey gang B here. Since I first introduced myself a while back I have > been > > doing a lot of researching this GMC stuff. By that I mean reading past > > posts that you people have been posting for a long time. Love the fact > you > > can search a subject and pull up tons of past posts and information on > it. > > > > But there seems to be many different opinions on everything. That's a > good > > thing but for a newbie it can make your head spin. I'll give you an > example > > the gas tanks. I have read you should take them to a radiator shop to > have > > them cleaned. Sounds logical. Then I read you can do it yourself by > using > > this method or that method . Sounds logical. Then I read you dont want > to > > remove the rust because it will rust twice as bad. Hard to decide which > > advice to follow if you know what I mean. > > > > I have seen several videos regarding jacking up your motorhome. One said > GM > > mechanics know that you should jack it up here otherwise you can break > the > > windshield. Another one said you have to jack up the back first or you > can > > break a windshield. Then I read post that said that's b.s. > > > > So my first question is what is the proper way to get this thing off the > > ground. I certainly don't want to bust a windshield trying to change the > > oil. > > > > Thanks > > B > > _______________________________________________ > > GMCnet mailing list > > Unsubscribe or Change List Options: > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: >
JR
Jon Roche
Mon, Jun 7, 2021 1:04 PM

you have to weed through alot of opinions.  If you search enough you will find some consistencies,  and what I usually pay attention to is length of
ownership,  and successful miles driven.    Some people on this forum have driven their coaches 200,000+ miles, and I take their opinions over a new
owner.  Some cases you just make your own choice and have to live with it good or bad.

as far as windshield and jacking,  you just have to use common sense.  it is best not to over-jack up one side or the other, but sometimes it is not
practical.  Look up the proceedure on using a leaf spring or steel plate to keep the rear bogies from dropping to help the amount of height needed to
get off the ground and pay attention to full airbag jacking being hard on shocks.    some people have had windshield cracks, and others have jacked
the crazy hell out of the sides of coach with no problems...

when at home, I use a 3.5 ton jack,  and jack under bogies.  If I have to use jack stands, they go under frame on each side of bogies.    for the
front either lift the entire thing in middle crossmember, of if just working on one side, I jack the suspension up on that side until tire just comes
off ground.  I try to limit how high I jack the coach to minimum height I need to do the work.

for oil changes,  I use these ramps,  they work so nice!!!  big and kinda hard to store,  but the benifits of these ramps outweigh that:

http://www.gmcmhphotos.com/photos/wood-ramp-construction/p5006.html

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/

you have to weed through alot of opinions. If you search enough you will find some consistencies, and what I usually pay attention to is length of ownership, and successful miles driven. Some people on this forum have driven their coaches 200,000+ miles, and I take their opinions over a new owner. Some cases you just make your own choice and have to live with it good or bad. as far as windshield and jacking, you just have to use common sense. it is best not to over-jack up one side or the other, but sometimes it is not practical. Look up the proceedure on using a leaf spring or steel plate to keep the rear bogies from dropping to help the amount of height needed to get off the ground and pay attention to full airbag jacking being hard on shocks. some people have had windshield cracks, and others have jacked the crazy hell out of the sides of coach with no problems... when at home, I use a 3.5 ton jack, and jack under bogies. If I have to use jack stands, they go under frame on each side of bogies. for the front either lift the entire thing in middle crossmember, of if just working on one side, I jack the suspension up on that side until tire just comes off ground. I try to limit how high I jack the coach to minimum height I need to do the work. for oil changes, I use these ramps, they work so nice!!! big and kinda hard to store, but the benifits of these ramps outweigh that: http://www.gmcmhphotos.com/photos/wood-ramp-construction/p5006.html -- Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/
MC
Matt Colie
Mon, Jun 7, 2021 2:30 PM

Wonbyanose wrote on Sun, 06 June 2021 21:21

Hey gang B here. Since I first introduced myself a while back I have been doing a lot of researching this GMC stuff. By that I mean reading past
posts that you people have been posting for a long time. Love the fact you can search a subject and pull up tons of past posts and information on
it.

But there seems to be many different opinions on everything. That's a good thing but for a newbie it can make your head spin. I'll give you an
example the gas tanks. I have read you should take them to a radiator shop to have them cleaned. Sounds logical. Then I  read you can do it yourself
by using this method or that method . Sounds logical. Then I  read you dont want to remove the rust because it will rust twice as bad. Hard to
decide which advice to follow if you know what I mean.

I have seen several videos regarding jacking up your motorhome. One said GM mechanics know that you should jack it up here otherwise you can break
the windshield.  Another one said you have to ja ck up the back first or you can break a windshield. Then I read post that said that's b.s.

So my first question is what is the proper way to get this thing off the ground. I certainly don't want to bust a windshield trying to change the
oil.

Thanks
B

Brian,

When you arrived, I suggested that you build a sigfile so we always know what you are dealing with as a coach.  They are not all alike.  '73s have
some special things to be aware of....

As to jacking, don't twist the coach.....
If all you are going to do is change the oil and grease the front end, Get a 3 ton floor jack and two good jack stands.  Do this on pavement or BIG
wood boards.  Jack under the center (see the two holes? They are a little right of center) of the engine cross member.  (Not the radiator!!)
Put the jackstands in as far outboard as you can get them to be solid. (this varies with the top of the stand) Let the coach onto the stands, get
yourself clean then go an throw a fierce body check at the side of the coach.  If it does not move, it is safe to go underneath it.

Now, in simple terms, (not because you are simple, but it is clearer this way) if you are jacking the rear, don't do it unless the front is on its
suspension.  If you are jacking the front, only jack at the single center point of the engine cross member so the coach.  This works if the coach is
on its rear tires or the bogies are blocked up.

Many coaches show damage from bad jacking or supporting.  In the rear, the only really solid place is the bogie castings.  If you need to lift the
rear, we can into that at a later date.  If you search for "lifting the rear of the coach", you may find interesting reading.

As a standing safety measure, cut some 4x4 and 2x4s to stack under the bogie casting any time you working under the coach.  The airsprings can (and
have) failed at any time and with no provocation.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

Wonbyanose wrote on Sun, 06 June 2021 21:21 > Hey gang B here. Since I first introduced myself a while back I have been doing a lot of researching this GMC stuff. By that I mean reading past > posts that you people have been posting for a long time. Love the fact you can search a subject and pull up tons of past posts and information on > it. > > But there seems to be many different opinions on everything. That's a good thing but for a newbie it can make your head spin. I'll give you an > example the gas tanks. I have read you should take them to a radiator shop to have them cleaned. Sounds logical. Then I read you can do it yourself > by using this method or that method . Sounds logical. Then I read you dont want to remove the rust because it will rust twice as bad. Hard to > decide which advice to follow if you know what I mean. > > I have seen several videos regarding jacking up your motorhome. One said GM mechanics know that you should jack it up here otherwise you can break > the windshield. Another one said you have to ja ck up the back first or you can break a windshield. Then I read post that said that's b.s. > > So my first question is what is the proper way to get this thing off the ground. I certainly don't want to bust a windshield trying to change the > oil. > > Thanks > B Brian, When you arrived, I suggested that you build a sigfile so we always know what you are dealing with as a coach. They are not all alike. '73s have some special things to be aware of.... As to jacking, don't twist the coach..... If all you are going to do is change the oil and grease the front end, Get a 3 ton floor jack and two good jack stands. Do this on pavement or BIG wood boards. Jack under the center (see the two holes? They are a little right of center) of the engine cross member. (Not the radiator!!) Put the jackstands in as far outboard as you can get them to be solid. (this varies with the top of the stand) Let the coach onto the stands, get yourself clean then go an throw a fierce body check at the side of the coach. If it does not move, it is safe to go underneath it. Now, in simple terms, (not because you are simple, but it is clearer this way) if you are jacking the rear, don't do it unless the front is on its suspension. If you are jacking the front, only jack at the single center point of the engine cross member so the coach. This works if the coach is on its rear tires or the bogies are blocked up. Many coaches show damage from bad jacking or supporting. In the rear, the only really solid place is the bogie castings. If you need to lift the rear, we can into that at a later date. If you search for "lifting the rear of the coach", you may find interesting reading. As a standing safety measure, cut some 4x4 and 2x4s to stack under the bogie casting any time you working under the coach. The airsprings can (and have) failed at any time and with no provocation. Matt -- Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms SE Michigan - Near DTW - Twixt A2 and Detroit
JR
John R. Lebetski
Mon, Jun 7, 2021 3:27 PM

When in doubt, refer to the GM factory service manuals over Facebook. Seems in recent years the priority has been inverted.

John Lebetski
Woodstock, IL
77 Eleganza II

When in doubt, refer to the GM factory service manuals over Facebook. Seems in recent years the priority has been inverted. -- John Lebetski Woodstock, IL 77 Eleganza II
JH
James Hupy
Mon, Jun 7, 2021 3:36 PM

If you get the GMCMI Newsletter, I recently had an article in there
regarding proper jacking and blocking instructions. If you don't  belong to
GMCMI, You should join, just for the technical articles, parts lists,
vendor references, etc.
Jim Hupy
Salem, Oregon

On Mon, Jun 7, 2021, 8:27 AM John R. Lebetski gransport7087@gmail.com
wrote:

When in doubt, refer to the GM factory service manuals over Facebook.
Seems in recent years the priority has been inverted.

John Lebetski
Woodstock, IL
77 Eleganza II


GMCnet mailing list
Unsubscribe or Change List Options:

If you get the GMCMI Newsletter, I recently had an article in there regarding proper jacking and blocking instructions. If you don't belong to GMCMI, You should join, just for the technical articles, parts lists, vendor references, etc. Jim Hupy Salem, Oregon On Mon, Jun 7, 2021, 8:27 AM John R. Lebetski <gransport7087@gmail.com> wrote: > When in doubt, refer to the GM factory service manuals over Facebook. > Seems in recent years the priority has been inverted. > -- > John Lebetski > Woodstock, IL > 77 Eleganza II > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: >
B
Brian
Mon, Jun 7, 2021 3:41 PM

Hi Jon

Thanks for responding and the advice.  Going with the majority seems to be
the way to go. I went out and got a 4 ton jack and 6 ton jack stands. I
have seen several pics of people using wooden diy jack stands. Thought that
was a good idea but with the cost of lumber might be cheaper to by the
metal ones who knows. What I really want to do is get the whole thing up on
stands. I'm a bigger guy and need all the room I can get. Of course that
will probably piss off my neighbors but that wouldn't be the first time.

Then I can get the wheels off and really get a good look to see what I'm up
against. Next step would be to call my mechanic friend lol.

I'm have my $125.00 discounted case of amsoil (are you kidding). And my wix
oil filter. Both seem to be the the preferred choice from what I read.
That's step one of many to follow.

Thanks again for your input I appreciate it.

Brian

On Mon, Jun 7, 2021, 8:04 AM Jon Roche lqqkatjon@gmail.com wrote:

you have to weed through alot of opinions.  If you search enough you will
find some consistencies,  and what I usually pay attention to is length of
ownership,  and successful miles driven.    Some people on this forum have
driven their coaches 200,000+ miles, and I take their opinions over a new
owner.  Some cases you just make your own choice and have to live with it
good or bad.

as far as windshield and jacking,  you just have to use common sense.  it
is best not to over-jack up one side or the other, but sometimes it is not
practical.  Look up the proceedure on using a leaf spring or steel plate
to keep the rear bogies from dropping to help the amount of height needed to
get off the ground and pay attention to full airbag jacking being hard on
shocks.    some people have had windshield cracks, and others have jacked
the crazy hell out of the sides of coach with no problems...

when at home, I use a 3.5 ton jack,  and jack under bogies.  If I have to
use jack stands, they go under frame on each side of bogies.    for the
front either lift the entire thing in middle crossmember, of if just
working on one side, I jack the suspension up on that side until tire just
comes
off ground.  I try to limit how high I jack the coach to minimum height I
need to do the work.

for oil changes,  I use these ramps,  they work so nice!!!  big and kinda
hard to store,  but the benifits of these ramps outweigh that:

http://www.gmcmhphotos.com/photos/wood-ramp-construction/p5006.html

--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/


GMCnet mailing list
Unsubscribe or Change List Options:

Hi Jon Thanks for responding and the advice. Going with the majority seems to be the way to go. I went out and got a 4 ton jack and 6 ton jack stands. I have seen several pics of people using wooden diy jack stands. Thought that was a good idea but with the cost of lumber might be cheaper to by the metal ones who knows. What I really want to do is get the whole thing up on stands. I'm a bigger guy and need all the room I can get. Of course that will probably piss off my neighbors but that wouldn't be the first time. Then I can get the wheels off and really get a good look to see what I'm up against. Next step would be to call my mechanic friend lol. I'm have my $125.00 discounted case of amsoil (are you kidding). And my wix oil filter. Both seem to be the the preferred choice from what I read. That's step one of many to follow. Thanks again for your input I appreciate it. Brian On Mon, Jun 7, 2021, 8:04 AM Jon Roche <lqqkatjon@gmail.com> wrote: > you have to weed through alot of opinions. If you search enough you will > find some consistencies, and what I usually pay attention to is length of > ownership, and successful miles driven. Some people on this forum have > driven their coaches 200,000+ miles, and I take their opinions over a new > owner. Some cases you just make your own choice and have to live with it > good or bad. > > > as far as windshield and jacking, you just have to use common sense. it > is best not to over-jack up one side or the other, but sometimes it is not > practical. Look up the proceedure on using a leaf spring or steel plate > to keep the rear bogies from dropping to help the amount of height needed to > get off the ground and pay attention to full airbag jacking being hard on > shocks. some people have had windshield cracks, and others have jacked > the crazy hell out of the sides of coach with no problems... > > > when at home, I use a 3.5 ton jack, and jack under bogies. If I have to > use jack stands, they go under frame on each side of bogies. for the > front either lift the entire thing in middle crossmember, of if just > working on one side, I jack the suspension up on that side until tire just > comes > off ground. I try to limit how high I jack the coach to minimum height I > need to do the work. > > > for oil changes, I use these ramps, they work so nice!!! big and kinda > hard to store, but the benifits of these ramps outweigh that: > > http://www.gmcmhphotos.com/photos/wood-ramp-construction/p5006.html > > > > > > > > > > > > -- > Jon Roche > 75 palm beach > EBL EFI, manny headers, Micro Level, rebuilt most of coach now. > St. Cloud, MN > http://lqqkatjon.blogspot.com/ > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: >
MC
Matt Colie
Mon, Jun 7, 2021 4:11 PM

JohnL455 wrote on Mon, 07 June 2021 11:27

When in doubt, refer to the GM factory service manuals over Facebook. Seems in recent years the priority has been inverted.

Brian,
Please believe this.  To date I have seen three (that I know of) coaches that could have been recovered to be enjoyed turned into low value scrap
because the owner took the wrong advice.  You might get answers you don't like here, but they will always be the result of real experience.
Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

JohnL455 wrote on Mon, 07 June 2021 11:27 > When in doubt, refer to the GM factory service manuals over Facebook. Seems in recent years the priority has been inverted. Brian, Please believe this. To date I have seen three (that I know of) coaches that could have been recovered to be enjoyed turned into low value scrap because the owner took the wrong advice. You might get answers you don't like here, but they will always be the result of real experience. Matt -- Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms SE Michigan - Near DTW - Twixt A2 and Detroit
LN
Larry Nelson
Mon, Jun 7, 2021 9:20 PM

For just changing the oil and filter, I have never jacked up my front end more than just a few inches. Enough to get my "self" far enough under the
rig to pull the plug and remove the filter. As time goes on, I suppose I will have to increase that vertical distance  :lol:  :lol: ) My first coach,
way back when, I was able to not jack it up at all. It must have had more clearance to ground "way back when".....yeah....that's the ticket.

Larry Nelson  Springfield, MO
Ex GMC'er, then GM Busnut
now '77 Eleganza ARS WB0JOT

For just changing the oil and filter, I have never jacked up my front end more than just a few inches. Enough to get my "self" far enough under the rig to pull the plug and remove the filter. As time goes on, I suppose I will have to increase that vertical distance :lol: :lol: ) My first coach, way back when, I was able to not jack it up at all. It must have had more clearance to ground "way back when".....yeah....that's the ticket. -- Larry Nelson Springfield, MO Ex GMC'er, then GM Busnut now '77 Eleganza ARS WB0JOT