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| 1970's Perkins 4-107 fuel problem |
| Author |
Message |
    
Gerald Warrick
Visitor
| | Posted on Sunday, April 30, 2006 - 09:53 pm: | 
|
after sitting for a few days engine fires right up then abruptly stops. Can be restarted only after bleeding system. Have replaced the check valve fitting that connects to the fuel filter fitting. all was fine for a week but problem returned. Any help would be appreciated. |
Eddie from Oregon
Visitor
| | Posted on Monday, May 01, 2006 - 08:33 pm: |
|
How old are the rubber fuel lines? |
Gerald Warrick
Visitor
| | Posted on Monday, May 01, 2006 - 08:56 pm: |
|
The only rubber fuel line is between racor 500 filter & lift pump & is a few years old. I am planning to replace all lines from tanks to engine fuel filter with new neoprene lines as a first step as they are copper & are old. As I have replaced the check valve & the problem has returned I assume there must be an undetected air leak.Would appreciate any further help. |
Eddie from Oregon
Visitor
| | Posted on Tuesday, May 02, 2006 - 09:59 am: |
|
That's all I can think of. Same as you. Loose fitting? Loose hose clamp? Defective seal in filter unit? |
Dwight Brooker
New member
Username: sailmaster
Post Number: 1
Registered: 05-2006
| | Posted on Monday, May 22, 2006 - 02:40 pm: |
|
You will want to check the lift tube from the tank as it can get pin holes above the fuel level and draw air, also make sure you do not have anything growing in your fuel,then work your way through the system to the primary filters making sure you have replaced all of the o-rings that come with the new filters every time, also check that the check ball in the raycor has not stuck,then go from there to the lift pump.make sure it is working correctly an easy method is to stick an electric fuel pump inline by passing the mechanical one just for a test. If does not work most likly your pump is fine. After the lift pump the system is under pressure so air will not get in there. If all this does not work and you have replaced the secondary filter then you will want to rebuild your injector pump and injectors. When reinstalling the pump make sure you replace all of the rubber fittings that go over the fuel lines into the pump.
Good luck. |
gerald warrick
Visitor
| | Posted on Monday, May 22, 2006 - 11:08 pm: |
|
It seems the check valve was the problem. Once I got the system properly bled she starts immediately and runs like a champ. I am still going to replace all the lines as they are old and I'm sure they will fail at the worst possible time. Thanks for all the advice. |
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