Vehicle & Technical > Discovery

Revs keep dropping

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ben_haynes:
if you want me to have a look at all then bring it up to the workshop and i will take a look

tomorrow in the daytime or when ever is convenient for you

PM me for Dirrections and My Phone Number

muddyjames:
sounds like air getting in somewhere.

I have installed a veg oil kit and the pipe that runs from my new diesel tank bypasses the lift pump. It took ages to start then driving down the road it would conk out completely and wouldn't restart.

I found it to be one of the jubilee clips wasnt done up enough by a small amount so air was getting into the system. It was easy to see as I have a clear fuel filter bulb so the bubbles were appearing in there.

I would go on the bet of air and coming in through a corroded pipe, because if mine runs ok with not using the lift pump on diesel then yours should be ok with no lift pump as well?

extreme90:
blocked fuel pick up ?
if the lift pump is sat open on the cam lob it wont work off the manuel primer
dan

ben_haynes:
deffinatly get that lift pump changed as that felt shot today m8

Disco Matt:

--- Quote from: muddyjames on February 05, 2008, 19:38:08 ---sounds like air getting in somewhere.

I have installed a veg oil kit and the pipe that runs from my new diesel tank bypasses the lift pump. It took ages to start then driving down the road it would conk out completely and wouldn't restart.

I found it to be one of the jubilee clips wasnt done up enough by a small amount so air was getting into the system. It was easy to see as I have a clear fuel filter bulb so the bubbles were appearing in there.

I would go on the bet of air and coming in through a corroded pipe, because if mine runs ok with not using the lift pump on diesel then yours should be ok with no lift pump as well?

--- End quote ---

I think when lift pumps break they tend to let air into the system - IIRC there's a rubber diaphragm in there that does the pumping? I got the impression that when I went to prime mine the diaphragm gave up (presumably the hand pump moved it further than it was used to!)

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