Quote:
Originally Posted by BCreekDave
I've been buying up NOS AC pumps. If you look for awhile, you can find them for reasonable prices. Got my last one for 50. My only concern is what the ethanol will do to them. Is this overrated for a limited use car? I've seen additives that can be added to the gas that claim to prevent the rubber from deteriorating. Snake Oil?
https://shop.bellperformance.com/pro...thanol-defense |
I'm not sure if ethanol will attack the old diaphragms or not. If it does, it would be over a long period of time. The 2 Carter pumps I just recently bought both died within 20 miles. I don't think ethanol works that quickly. I believe that to be more of a quality control issue.
The AC pump on my Firebird is going on 25 years old and sees nothing but ethanol pump gas. But I do run a little snake oil in my fuel.
Speaking of additives, whether it helps with ethanol and corrosion I can't be certain but I lean towards yes. What I use is 2 cycle engine oil. I mix 1 ounce per 5 gallons of gas. I started doing this a couple decades ago, mainly to give the fuel some lubrication since fuel lost it's lubricity when lead was removed. All the reading I've done I feel it helps lube the upper end of the engine, valves, guides, seats, during the combustion process, and if you use a 2 cycle with TCW3 it will also have cleaning properties as well. Some of my engines I've torn down over the years have been exceptionally clean up top, never had valve recession issues, overall pretty happy.
If it fights ethanol corrosion thats just an added bonus for me because that's not really what I started using it for.
03-02-2019, 03:19 PM
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