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re: Engine issues on my CJ7 258 i6. Any Carb experts? NEW UPDATE Page 3

Posted on 6/25/17 at 1:39 pm to
Posted by cajuncarguy
On the road...Again!
Member since Jun 2013
3135 posts
Posted on 6/25/17 at 1:39 pm to
Not crud. Water. With all the rain and moisture in the air, the ethanol in the gas absorbs water readily. You can have a brand new tank and a new filter and still have the same effect. The water will not stay on the filter screen but settle back to the lines/tank when the engine is off.

I've fixed several of these back in the day working with dealers and OEM guys.

As I said it's hard to figure out. Dropping the tank is cheaper than hanging a bunch of parts on it.
This post was edited on 6/25/17 at 1:41 pm
Posted by slacker130
Your mom
Member since Jul 2010
8073 posts
Posted on 6/26/17 at 7:46 am to
Also, ethanol fuel starts phase separation in as little as two weeks. So, if you buy gas that's been sitting in a gas station tank for 1 week and you fill up your CJ and don't burn the entire tank within the month = water in your gas.

I only use 100% gas (93 octane) and I mix in Marine Stabil. It's expensive, but it has made a difference in all my carbureted engines.
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