Ethanol Resistant Coating / Plating / Pump Diaphragms?

[enigma57]

We are forced to use 10% ethanol in my area because we are (too) close to Houston (thanks a lot, EPA). That's bad enough...... But if we have 15% ethanol forced on us here, it will only make a bad situation worse

** Question...... Is there a plating or coating (perhaps hard anodizing?) process that will protect aluminum bodied carburettors from the corrosive effects of ethanol without clogging the small internal passages in the carbs? The Weber DCNF carbs I will be rebuilding have aluminum bodies like a Carter AFB and some of Holley's newer carbs (not zinc like most vintage American made carbs)?

Also...... Is there a source for alcohol resistant (American made) fuel pump diaphragms and for the older (Italian made) Weber carb accelerator pump diaphragms? How about the flexible fuel lines where the inlet side of the mechanical fuel pump is connected to hard tubing run along the frame rail?

Thanks,

Harry

 

[grumpyvette]

theres several additives that are supposed to make use of ethanol laced fuel far less corrosive,

http://www.drivenracingoil.com/dro/carb ... -of-6html/
if you find a really good additive that works 100% let me know , we have ETHANOL FUEL LACED GAS AND ITS KILLS SMALL ENGINES LIKE LAWN MOWER CARBS AND PRESSURE CLEANER CARBS, in the mean time heres a list of gas vendors that only sell alcohol free fuel
All gasoline breaks down over time, most gas absorbs moisture from the air to some extent, ethanol laced fuel is especially prone to this moisture absorption.
ethanol is hygroscopic

hy·gro·scop·ic
ˌhīɡrəˈskäpik/
adjective
(of a substance) tending to absorb moisture from the air.
water combined with ethanol is highly corrosive if left in contact with most metals over long time periods
the ability of gasoline to quickly and easily vaporize tends to degrade over time making it significantly less easily ignited as its the vapor not the liquid component of the fuel that burns the most efficiently, normally heat helps rapidly atomize and vaporize the fuel, but as fuel ages the easily vaporized components tend to be lost to evaporation, leaving a less easily ignited and usually DARKER COLORED LIQUID.
mixing the remaining old gas with new fuel will generally help but not cure the issue!
I use STA-BIL marine fuel additive in my lesser used engines, but reading the info on various site the LONGEST listed time frame it seems to work for as designed was about 2 years, if I had gas over 2 years old ID personally drain the tank, add stabil, plus a name brand fuel system cleaner and a fresh fuel filter,add fresh non-alcohol laced fuel, and flush the fuel rail and or car fuel bowls, before using the car or engine,
Id probably use the old fuel I drained to clean parts or ignite a trash pile, yeah you might be able to mix it with fresh fuel and use it but the chances of it having absorbed moisture, separated into various less than ideal for use as a fuel,components while sitting for over two years,or causing issues with the engine that might damage it,would just not be worth the risk in my opinion.

http://www.goldeagle.com/tips-tools/top ... s-debunked

http://www.sta-bil360.com/how-it-works

there ARE ETHANOL FREE GAS STATIONS LISTED, when you NEED TO FILL A MUSCLE CAR TANK, HERES MY LOCAL STATION, yes it costs more short term, easily an extra 70-80 cents a gallon, but you don,t run nearly the same risk of trashing your muscle cars engine and fuel delivery systems
http://pure-gas.org/extensions/map.html

ETHANOL FREE FUEL
http://www.buyrealgas.com/
BTW looking in your area?
Lee Oil Co Inc
1655 S Hwy Bypass 35
Alvin, TX 77511
(281) 331-3445
leeoilalvin.com

http://www.popularmechanics.com/cars/hybrid-electric/a6244/e15-gasoline-damage-engine/

THE O-RING ON THE NEEDLE AND SEAT, AND THE DIAPHRAGM IN THE ACCELERATOR PUMP, CAN BE DAMAGED BY ETHANOL IN FUEL UNLESS AN ETHANOL COMPATIBLE MATERIAL IS USED

glad to help when AND WHERE I CAN.
blue diaphragms are alcohol tolerant
they come in 30 cc and 50cc sizes
obviously you need to select the size you require
https://www.speedwaymotors.com/Holley-135-10-30cc-Accelerator-Pump-Diaphragm-Alcohol,9043.html?sku=42713510&msclkid=abed1e09704516c905e17e6b4bff9f84&utm_source=bing&utm_medium=cpc&utm_campaign=SMI - Shopping (CSE) (Bing)&utm_term=4577404347376845&utm_content=All Products (Feb28_2020)
https://www.speedwaymotors.com/Holley-135-9-50cc-Accelerator-Pump-Diaphragm-Alcohol,8832.html

BTW HERES A BIT OF RELATED HOLLEY INFO

viewtopic.php?f=55&t=1790

http://garage.grumpysperformance.com/index.php?threads/has-anyone-else-noticed-the.7770/#post-46321

http://garage.grumpysperformance.co...ne-running-a-turbo-s-on-e85.10990/#post-48520

 

[enigma57]

Thanks, Grumpy! I will check them out. I have been using Seafoam and premium grade Shell gas (10% ethanol) in our late model daily drivers (add Seafoam once every couple of months on average) and use the same gas in my lawnmower with Seafoam as well. So far, so good. The engine in my mower is over 10 years old and still going strong.

Best regards,

Harry