07-15-2019, 11:14 PM | #1 |
Senior Member
Join Date: May 2010
Location: Fairfax, VA
Posts: 3,391
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hard starting
My 39 pickup won't start until the fuel pump has drawn gas from the tank. I've replaced the fuel pump and rebuild the prime and spare carbs. I need to replace the fuel line because it is copper, not copper clad.
What could be the problem? |
07-15-2019, 11:50 PM | #2 |
Senior Member
Join Date: May 2010
Location: MN
Posts: 7,053
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Re: hard starting
Air leak, bad check valves. I like the bowl pumps as there is fuel at the pump and it also catches sediment.
Sherman??? selling his flex hoses with a check valve yet? My thought on copper lines. Unless you you are running a high pressure fuel injection system, straight copper will last more then you or I will experience a failure. 10lds of pressure is not much. More from my shower or sink. Never for brakes! . Last edited by Tinker; 07-16-2019 at 12:10 AM. |
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07-16-2019, 12:07 AM | #3 |
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Join Date: Oct 2013
Location: Glens Falls NY
Posts: 1,267
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Re: hard starting
Common problem. Sometimes slow leak of gas into manifold when parked but as said air leak or faulty check valves in pump. Some (like my self) have an auxiliary electric pump at tank and run it for 4 -10 seconds by toggle switch to prime carb.
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07-16-2019, 12:12 AM | #4 |
Senior Member
Join Date: May 2010
Location: MN
Posts: 7,053
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Re: hard starting
I picked up some pumps from Dennis/macs (I'll look it up as I have the paper). I know, I know... 5yrs. Got a couple off the good batch.
Last edited by Tinker; 07-16-2019 at 12:21 AM. Reason: wrong vender. |
07-16-2019, 12:20 AM | #5 |
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Join Date: May 2010
Location: MN
Posts: 7,053
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Re: hard starting
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