Jeremy Rowland wrote:Thanks Fred yes the engine was running fine until this issue; I will pass on what has been said by others here to Tim and see if he can locate the faulty pipes/injector?
Fred if it was say for example caused by a cracked injector then I trust that all of the injectors on that bank of the engine would need setting up? I have never setup a Detroit, if it was a Cummins then yes no problem I have the tools to set those up but not the Detroit.
It would only be necessary to set the injector you changed.
In my last post I was not saying that you could not do the job without the GM tool kit. As Paul says it's easy enough setting up the timing using the tail of a Vernier instead of the GM depth gauge.
Unlike the Cummins "Pressure/Time" system each GM injector unit is in effect an injector and pump in one, each having its own rack.
These are connected by a link to a shaft running the length of the head which is in turn connected to the governor.
Each of these links has a pair of adjusting screws which allow the rack in each injector unit to be individually adjusted.
That procedure is time consuming and a bit of a pain in the a##e but I will try to explain if you need to know.