gmclist@list.gmcnet.org

GMC Motorhome Discussion List

View all threads

No Vapor Lock this trip

JR
John R. Lebetski
Tue, Jun 8, 2021 9:57 PM

So with recent 195 Flowkooler Stat (see other post) and the carb ore heat connected, not one hint of vapor lock Never needed to hit Aux selector and
pump. This indicates with a hot carb in the mix that it should not be blamed for vapor lock. My theory has always been it happens before or in the
mechanical pump. Perhaps Summer blend E10 is why no issues. Thank you EPA!

John Lebetski
Woodstock, IL
77 Eleganza II

So with recent 195 Flowkooler Stat (see other post) and the carb ore heat connected, not one hint of vapor lock Never needed to hit Aux selector and pump. This indicates with a hot carb in the mix that it should not be blamed for vapor lock. My theory has always been it happens before or in the mechanical pump. Perhaps Summer blend E10 is why no issues. Thank you EPA! -- John Lebetski Woodstock, IL 77 Eleganza II
K
kellerimages@ymail.com
Wed, Jun 9, 2021 1:24 AM

John I have been filling up with non ethanol and find that it cures  vapor lock and gives you better gas mileage .

John I have been filling up with non ethanol and find that it cures vapor lock and gives you better gas mileage .
MC
Matt Colie
Wed, Jun 9, 2021 1:28 AM

Gregory keller wrote on Tue, 08 June 2021 21:24

John I have been filling up with non ethanol and find that it cures  vapor lock and gives you better gas mileage .

Gregory,

That is true and it is nice, but when traveling it is often hard to locate real gasoline and if you can the price difference is usually not cost
effective.  I tracked EoH% of fuel and fuel rate religiously for years until I finally admitted it was a lost cause.

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

Gregory keller wrote on Tue, 08 June 2021 21:24 > John I have been filling up with non ethanol and find that it cures vapor lock and gives you better gas mileage . Gregory, That is true and it is nice, but when traveling it is often hard to locate real gasoline and if you can the price difference is usually not cost effective. I tracked EoH% of fuel and fuel rate religiously for years until I finally admitted it was a lost cause. 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
JK
Jim Kanomata
Wed, Jun 9, 2021 5:12 AM

Not too practical looking for non ethanal.
Even nonehanol will form a vapor loc so best to be prepared.

On Tue, Jun 8, 2021 at 6:28 PM Matt Colie matt7323tze@gmail.com wrote:

Gregory keller wrote on Tue, 08 June 2021 21:24

John I have been filling up with non ethanol and find that it cures

vapor lock and gives you better gas mileage .

Gregory,

That is true and it is nice, but when traveling it is often hard to locate
real gasoline and if you can the price difference is usually not cost
effective.  I tracked EoH% of fuel and fuel rate religiously for years
until I finally admitted it was a lost cause.

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


GMCnet mailing list
Unsubscribe or Change List Options:

--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502

Not too practical looking for non ethanal. Even nonehanol will form a vapor loc so best to be prepared. On Tue, Jun 8, 2021 at 6:28 PM Matt Colie <matt7323tze@gmail.com> wrote: > Gregory keller wrote on Tue, 08 June 2021 21:24 > > John I have been filling up with non ethanol and find that it cures > vapor lock and gives you better gas mileage . > > Gregory, > > That is true and it is nice, but when traveling it is often hard to locate > real gasoline and if you can the price difference is usually not cost > effective. I tracked EoH% of fuel and fuel rate religiously for years > until I finally admitted it was a lost cause. > > 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 > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: > -- Jim Kanomata ASE Applied/GMC, Newark,CA jimk@appliedairfilters.com http://www.gmcrvparts.com 1-800-752-7502
JR
John R. Lebetski
Wed, Jun 9, 2021 2:12 PM

Yep. I get $.10 off at BP and have had no issues with Shell 87 E10.  Usually buy on price and easy in and out as Pilot and TA often lower. The one
time I bought a tank of E0 in Amana because it was right there at the fair grounds I got light spark knock.  Better to keep eyes on road than looking
at Gas Buddy and crashing. My point was that even with 115F or so entering carb no issues so wondering if summer blend helps (it should)

John Lebetski
Woodstock, IL
77 Eleganza II

Yep. I get $.10 off at BP and have had no issues with Shell 87 E10. Usually buy on price and easy in and out as Pilot and TA often lower. The one time I bought a tank of E0 in Amana because it was right there at the fair grounds I got light spark knock. Better to keep eyes on road than looking at Gas Buddy and crashing. My point was that even with 115F or so entering carb no issues so wondering if summer blend helps (it should) -- John Lebetski Woodstock, IL 77 Eleganza II
JB
Johnny Bridges
Wed, Jun 9, 2021 8:20 PM

Non ethanol (called 'boat gas') is easy to find around here, but as you go West it gets harder and harder.  Here's the best way to find
it:https://www.pure-gas.org

And here's how to beat vaopor lock in the Southeastern summer: http://www.gmcmhphotos.com/photos/g6198-cane-9-creek-rv-park-heflin-2c-al.html

First ten pics in the album.  Didn't change any of the existing hoses, capped the selector and used a threaded bayonet for the mechanical pump inlet
line.  You could return to stock by the highway in 30 minutes and a mechanical pump if you wanted.  Run the pump power to the relay through a safety
switch, and replace the supplied filters with Wix replacements.

--johnny

Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs.  They must answer to me in hell

Non ethanol (called 'boat gas') is easy to find around here, but as you go West it gets harder and harder. Here's the best way to find it:https://www.pure-gas.org And here's how to beat vaopor lock in the Southeastern summer: http://www.gmcmhphotos.com/photos/g6198-cane-9-creek-rv-park-heflin-2c-al.html First ten pics in the album. Didn't change any of the existing hoses, capped the selector and used a threaded bayonet for the mechanical pump inlet line. You could return to stock by the highway in 30 minutes and a mechanical pump if you wanted. Run the pump power to the relay through a safety switch, and replace the supplied filters with Wix replacements. --johnny -- Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
K
kellerimages@ymail.com
Wed, Jun 9, 2021 8:45 PM

I use the pure  gas free web site just takes a little planning . You’ll see these engines run better without Ethanol in the gas .

I use the pure gas free web site just takes a little planning . You’ll see these engines run better without Ethanol in the gas .
JR
John R. Lebetski
Wed, Jun 9, 2021 9:10 PM

Mine runs better on E10. I find the ethanol slows burning enough to kill pinging so I can run more timing than with E0, probably an even trade for
less calories in E10.

John Lebetski
Woodstock, IL
77 Eleganza II

Mine runs better on E10. I find the ethanol slows burning enough to kill pinging so I can run more timing than with E0, probably an even trade for less calories in E10. -- John Lebetski Woodstock, IL 77 Eleganza II
MC
Matt Colie
Wed, Jun 9, 2021 11:59 PM

Mine runs just fine on E10, but with the fuel rate reduce by the percentage of ethanol.

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

Mine runs just fine on E10, but with the fuel rate reduce by the percentage of ethanol. 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