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Perkins 4108

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Peter Nash
Visitor
Posted on Monday, December 05, 2011 - 09:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi. I have a recent problem with my 4108. From cold it starts with no problem and revs nicely. When the engine gets warm it simply will not rev in gear or neutral. I had to get home on tick over in gear just!! Fuel filter clean. Fuel newish. When cold (next morning) all good again until it warms up and same again. Can anyone help? I am on my own in Mallorca in the Mediterranean so rely on various forums for help. Thanks Guys.
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oslin04
Senior Member
Username: oslin04

Post Number: 63
Registered: 10-2006
Posted on Monday, December 05, 2011 - 11:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hi Peter,
Well that's a bit odd, as a Marine Engineer my first thoughts are, the injector pump needs rebuilding, but that is assuming all the valve clearances are correct as are the compressions which they should be as it starts, I take it you have checked all the cable connections etc to make sure throttle operation is always working and not slipping when it gets hot,If these are all ok it only leaves the injector pump, it is possibly the Governor sticking in the pump but that can only be sorted when the pump is stripped,
Bests I can come up with sitting here at my computer I am afraid.
Regards Keith
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 470
Registered: 07-2003


Posted on Monday, December 05, 2011 - 06:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

One thing that comes to mind is the return from the injector pump.There is a fitting that regulates what leaves that pump,look to see everything is open and not stuck. I would check the flow of fuel when it acts up,it could be poor flow when warm or the floating plug
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peter nash
Visitor
Posted on Tuesday, December 06, 2011 - 03:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks for the advice - I will get down to the boat later today and look at the pump. That is the bit I hoped it wouldn't be as most else I can tinker with! Thanks again Peter
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Peter Nash
Visitor
Posted on Friday, December 09, 2011 - 05:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Final Thanks to all. Up and running better than ever. New lift pump, re-cleaned both the pre-filter and main filter.

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