MYStargazer
Active member
Any ideas or suggestions, chaps?
I have a Perkins Prima (Volvo M50/Montego) turbo diesel.
There was a diesel leak from the Bosch VE injection pump - so I found a secondhand unit. I replaced the cylinder head gasket, cam belt and injection pump in one go.
The engine had been standing for two and a half years.
I went to start her, and… wooosh! She went to full revs immediately. I turned the engine off right away on the key and let the smoke (grey) clear.
I thought the idle must have been badly adjusted, so reduced the idle speed as much as possible and tried again – same result.
I’m satisfied that this wasn’t a case of a runaway engine as the engine stopped the moment the fuel supply was cut off.
The injector pump had been sitting on a shelf for nearly three years, and there was old fuel in the tank (mixed with fresh fuel) – so I’m thinking something in the injector pump must be stuck open.
Anyone familiar with this situation?
I’m tempted as a last resort to take the head off the injector pump and see if the governor spring is sticking – has anyone tried this? Would I then need a new head seal in the short term?
Many thanks.
I have a Perkins Prima (Volvo M50/Montego) turbo diesel.
There was a diesel leak from the Bosch VE injection pump - so I found a secondhand unit. I replaced the cylinder head gasket, cam belt and injection pump in one go.
The engine had been standing for two and a half years.
I went to start her, and… wooosh! She went to full revs immediately. I turned the engine off right away on the key and let the smoke (grey) clear.
I thought the idle must have been badly adjusted, so reduced the idle speed as much as possible and tried again – same result.
I’m satisfied that this wasn’t a case of a runaway engine as the engine stopped the moment the fuel supply was cut off.
The injector pump had been sitting on a shelf for nearly three years, and there was old fuel in the tank (mixed with fresh fuel) – so I’m thinking something in the injector pump must be stuck open.
Anyone familiar with this situation?
I’m tempted as a last resort to take the head off the injector pump and see if the governor spring is sticking – has anyone tried this? Would I then need a new head seal in the short term?
Many thanks.