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Unread 01-30-2013, 09:44 AM   #16
lucdog
Web Wheeler
 
lucdog's Avatar
1980 CJ5 
 
Join Date: Jul 2006
Location: , Il.
Posts: 8,158
Quote:
Originally Posted by Oily

I see you have a son, but I am not sure how familiar you are with carburated engines. In my opinion, your restart procedure for a warm engine is wrong. Your flooding your engine. Owner's manuals used to state that to start a warm engine, to hold the accelerator pedal a quarter to half way to the floor then crank. Sitting warm will vaporize the existing fuel causing a rich effect which needs more air to lean it out. Holding it at wide open dumps a lot of fuel in an already "flooded"/rich with fuel oxygen environment. Pumping twice after that just exasperates the flooded condition.
I can't think of a good reason why pumping the crap out of it seems to work but I think it is happenstance to other conditions.
Try it again with just depressing the gas pedal a quarter of the way. If it doesn't start, quit cranking but do not let off the pedal. Try again in about 15 to 30 seconds. By the way, it is recommended not to crank longer than 15/20 second intervals to keep the starter from getting hot, eliminating premature starter failure.
Hope this helps, .
I believe this way has been pretty much standard procedure since I started driving in 1971. Also, with a flooded engine you hold the gas pedal on the floor for 30 or so seconds, leave it on the floor and crank the engine till it starts, slowly backing of the gas after it fires up.
If after doing what oily said and it doesn't want to start, put a couple table spoons of gas down the carb. Hold the gas pedal down 1/4 way, see if it will start then. If it does this would show a supply problem.

Bill

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1957 WILLYS pickup, needs work.
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac trail Jeep.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7 pretty weekend and sometimes to work Driver in the summer, My first rebuild, if the Q-trac and 5 are broke, this one is the one to take. its just as capable as the other 2, except nice paint.
1984 Grand Wagoneer, 1 ton axles, great 360/727, and a big a$& tree fell on it .
1989 YJ the CJ to YJ conversion.
2005 TJ Rubicon.
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