hi folks
an update.
I've just received a replacement pump, although the chap I have been mailing with said they would replace the washer and set the pump up, they have sent an actual replacement, I'm glad to say.
Before I fit it, I'd appreciate bouncing some questions off your collective brains please.
The guy from the supplier maintained the following
1. When fitting the replacement pump the spill timing should checked and set by removing the top union and fitting a spill pipe etc
If this is not done, the cam thrust could be too high possibly breaking the plunger spring in the pump.
2. The original problem could be contamination in the fuel keeping the delivery valve open.
3. The washer was most likely broken by my tightening the pipe nipple nut down too tight.
My responses were
1. As the pump is a direct replacement and the engine was previously running, I can't see why the timing should need to be changed unless, once the engine is running, there seems to a tuning need. I really cannot see a situation where the delivery spring could be damaged by the extent of the cam thrust when the pump was supposed to have been tested on a Hartridge fuel pump tester with a custom built cam box.
2. I found this hard to accept.
3. I could not believe in a possibility of me tightening a nipple nut so as to disturb the union that had been torqued up to 40lbf ft
So although I can't see any sense in it and still think that the pump was faulty on receipt, I'd appreciate others dispassionate views before I fit it.
thanks in advance
Rod