Manitou 628 letting fuel into oil

[czechmate]

So this ageing manitou had a Perkins engines which fills the sump with (I assume) fuel. I have known a Nuffield do it in the past. Is there a most probable fault and if so is it a viable fix? At the moment I just change the oil pretty often

 

[le bon paysan]

Fuel pump seals or lift pump?

 

[czechmate]

Fuel pump seals or lift pump?

They sound feasible
The mechanic of 20 years at Ricards has started on his own and is coming out tomorrow so I wanted an idea to have a conversation about planning this job

 

[le bon paysan]

Try Google, removal of a fuel injection pump on a Perkins (number) engine.

 

[bobk]

They sound feasible
The mechanic of 20 years at Ricards has started on his own and is coming out tomorrow so I wanted an idea to have a conversation about planning this job

Almost certainly is , question is ......... is the pump timed or not , my jcb isn't but my 40 series are timed .

 

[ACEngineering]

So this ageing manitou had a Perkins engines which fills the sump with (I assume) fuel. I have known a Nuffield do it in the past. Is there a most probable fault and if so is it a viable fix? At the moment I just change the oil pretty often

Hello

It may well be the injector pump but could also easy be the cold start plug. Take the plug out then put the pipe back on it and pump the lift pump. There should be no dribbles from it.

 

[ACEngineering]

Almost certainly is , question is ......... is the pump timed or not , my jcb isn't but my 40 series are timed .

His pump will be keyed to the gear so you just take it straight off cant really go wrong imo

 

[bobk]

His pump will be keyed to the gear so you just take it straight off cant really go wrong imo

Always best to check .

 

[br jones]

lift pump on the neighbours manitou ,caused same problem

 

[czechmate]

His pump will be keyed to the gear so you just take it straight off cant really go wrong imo

I’ll bet I can find a way

 

[czechmate]

lift pump on the neighbours manitou ,caused same problem

I like lift pump

 

[ACEngineering]

I like lift pump

Should have a drain/leak hole i think on the lift pump so will leak external?

 

[czechmate]

Should have a drain/leak hole i think on the lift pump so will leak external?

Spoil sport

 

[czechmate]

Should have a drain/leak hole i think on the lift pump so will leak external?

I like cheap and simple solutions so have gone for the lift pump first. Have the new pump now, I can’t see any drain/leak hole in this new one, which I take as a good thing.
It will take a long time to know if it’s cured but hopefully when we change the pump we will find the old one has a tear or some such

 

[agrimax]

Should have a drain/leak hole i think on the lift pump so will leak external?

The leakage/drain hole is on the injector pump, not the lift pump.

 

[ACEngineering]

The leakage/drain hole is on the injector pump, not the lift pump.

I've seen some old lift pumps with drain holes I'm sure.

Later injector pumps 1004 onwards have drain holes fairly sure the older 1000 series as in ops case don't.

Its unlikely lift pump problem anyway, thermostart plug or injector pump.

 

[forblue]

I agree, some lift pumps had holes, i would also go with inj pump leaking.