[Michael Jarosik]

I will be replacing the Fuel Injection Pump (FIP) on my 755 and I have a question.

When replacing the FIP do I use the same combination (thickness) of shims that were used on the FIP I'm replacing? I bought new shims but I'm not sure if this is the right way to do it.

Thank you for your help.

 

[rydplrs]

I’ve always been told the pump must be re-timed (shimmed) anytime it is removed.

 

[Gizmo2]

When replacing the FIP do I use the same combination (thickness) of shims that were used on the FIP I'm replacing? I bought new shims but I'm not sure if this is the right way to do it.

I don't know the answer but that's a darn good question.

 

[Kennyd]

I’ve always been told the pump must be re-timed (shimmed) anytime it is removed.

That would be my assumption too, otherwise the timing is just a WAG.

 

[X758]

I thought I would be able to help with this but we don’t have a service manual for this engine. I would suggest getting and following the service procedure for replacing the injection pump. That would be the correct way. Or you could chance it and just replace it and use the same shims. If there is a timing change hopefully it won’t be enough of a change that hurts the engine

 

[Michael Jarosik]

I thought I would be able to help with this but we don’t have a service manual for this engine. I would suggest getting and following the service procedure for replacing the injection pump. That would be the correct way. Or you could chance it and just replace it and use the same shims. If there is a timing change hopefully it won’t be enough of a change that hurts the engine

Thanks for the reply.

 

[flyweight]

I've used the same thickness of shim in the past.