Quote:
Originally Posted by sasquatchgeoff
Assuming the following:
- rebuilt, calibrated original set of injectors
- rebuilt head, including prechambers, valve guides, seals
- non-contaminated fuel
With no apparent fuel leaks, can worn delivery vales/sealing washers & rings be the cause of nailing? If so, how?
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I believe the Delivery Valve Crush Washers on your IP sit between the Delivery Valve body and the Delivery Valve holder (that the Hard Lines Attache to); so unless some one reused them I would not think that they would have a wear issue and should seal.
I believe I have read of some nailing caused when the O-rings leak but I am not sure why this would be the case.
I would be more inclined to think the Nailing was caused by IP timing not being correct.
By "rebuilt, calibrated original set of injectors" did this mean brand new Nozzles and Opening/Pop Pressure set on them? And, who did the rebuild?
Does the Nailing ever go away?
Any other issues like smoke?
Do you know if anyone was inside of the IP; for instance to change the Delivery Valve Holder O-rings?