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Old Sep 15, 2011 | 09:36 AM
  #1  
'78F250351m's Avatar
'78F250351m
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Fuel Pump Help

My truck has sat for the past month, because I was fixing a few things on it and when I went to start it up a couple days ago it wouldn't fire up. So I took off the fuel line going to the carb to check for fuel of course, and nothing was coming up. I started at the tank and worked my way up towards the engine and found that I am getting fuel pumped to my fuel pump but not pumped to the carb.

Is there any trick to get the fuel pump workin again before I go buy a new one tomorrow? I'm wondering since it sat for a bit that there might be somethin hung up in it? But it has sat before and this hasn't happened.

Thanks
 
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Old Sep 15, 2011 | 11:13 AM
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Just replace it, the diaphragm inside is probably toast. Its just one less thing that'll quit working in the future...
 
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Old Sep 15, 2011 | 11:41 AM
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Make sure it wasn't pumping fuel into crankcase instead of carb.
 
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Old Sep 15, 2011 | 12:56 PM
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It's not even worth the time and money repairing the fuel pump yourself since a reman. pump will run you $40 at the most.

Is there a possibility that your fuel filter is plugged up? Does the pump have a canister filter built into it like the 429/460 pumps?
 
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Old Sep 15, 2011 | 12:57 PM
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gfw1985 Is right on that one, I had that happen.. Airtex, Bosch fuel pumps are garbage.. I'd recommend summit's fuel pump it works like a champ!
 
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Old Sep 15, 2011 | 05:14 PM
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'78F250351m's Avatar
'78F250351m
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Originally Posted by gfw1985
Make sure it wasn't pumping fuel into crankcase instead of carb.

How would it be pumping fuel into the crankcase? I didn't think that was possible....wouldn't a new pump fix that anyways?
 
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Old Sep 15, 2011 | 05:34 PM
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put a low pressure electric pump on it and forget it all!
 
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Old Sep 15, 2011 | 06:49 PM
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gfw1985
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Originally Posted by '78F250351m
How would it be pumping fuel into the crankcase? I didn't think that was possible....wouldn't a new pump fix that anyways?
Yes, new pump will fix that. However, if it was dumping fuel into crankcase it has thinned the oil, possibly causing internal damage if oil is not changed.
 
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Old Sep 15, 2011 | 06:58 PM
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yup and itll screw the bearings up if it has....



ps DONT throw the the gassy oil in a fire....... and dont ask how i know





 
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Old Sep 15, 2011 | 07:34 PM
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Originally Posted by FordmanShane
Airtex, Bosch fuel pumps are garbage
X2 on the Airtex. Only for the reason that the engineer responsible should be strung up, then shot, then killed and shot again.
There is a hump at the bottom of the bracket, top of the body, that makes it darn near impossible to start then tighten the bolts. You need a wobble socket. A wobble extension makes the socket to long to fit. Even with a short socket.
It's like they sat there and said, "how can we screw with people?"
 
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Old Sep 15, 2011 | 07:45 PM
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Originally Posted by '78F250351m
How would it be pumping fuel into the crankcase? I didn't think that was possible....wouldn't a new pump fix that anyways?
You do have a mechanical fuel pump, not an electric pump; correct? If you have an electric fuel pump then it can't.
 
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Old Sep 15, 2011 | 07:49 PM
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I was only saying to switch to a electric not that he has one
 
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Old Sep 15, 2011 | 08:09 PM
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I agree with the electric pump. A mr gasket pump runs around $45 at the parts house and works GREAT.
 
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Old Sep 15, 2011 | 10:30 PM
  #14  
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What about Carter fuel pumps? Are they better than Airtex? Those are the only two brands i've seen. There must be others.
 
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Old Sep 16, 2011 | 05:17 AM
  #15  
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Carter P4070 if you wish to go that route. I know of a couple that have been in use for for over twenty years. Put one on my last project. Airtex was cheaper, but found too many failure reports.
 
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