Doug that's great and i learned a lot from you. Hmmm, now if i can just find one. I think I like the 360 option with the medium gearing; there's lots of aftermarket parts on can throw on that engine even with my skinny wallet. lol
Sometimes the gas evaporates out of the carb enough to lift the float needle allowing the gas to drain back into the gas tank. My understanding is this is a good indication the valves in the fuel pump are getting weak and seeping a bit. My rig has been doing this, but I haven't had a chance to replace the fuel pump to see if it fixes the situation.
If the well seals were out (X Seals) causing the bowl to empty, it should still start once the bowl gets enough gas in it, I would imagine rather quickly. It sounds like to me you have to wait for the gas to pump through the entire fuel line again before it starts.
Also gas in the oil also indicate a torn diaphragm in the fuel pump, something to be cautious of on mechanical fuel pumps.
I have a 1977 RV with a 440 and thermoquad carb. I have had considerable trouble with the seals (originally called X seals). If these are worn or misaligned they will drain the carb on shutdown. Depending on how badly they leak, you can experience flooding on hot starts, drained fuel reservoir on cold starts, and gas getting mixed in with and thinning your engine oil. An electric fuel pump may speed up filling the carb, but you will still be getting gas in the oil. Pull your dipstick and smell it, I'll bet that you can smell gas.
Thanks Doug-its a sweet ole gal. I have one question-it has the 440-727 package, runs great-but after about 2 days sitting-it doesn't want to start without gas put in the carb, I have debated about this-and think that maybe an electric fuel pump might be the answer-but I can't decide whether to run it thru the existing pump, or run it entirely on the electric pump-any ideas? Thanks-Al
Thanks for your interest, tips and advice. I plan to live in this RV for a while till I get a bigger one. Everything works and I am happy with it, the only downfall is I found out it has a roof leak. Any advice on how to stop a roof leak till I get it repaired would be helpful.
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