Injector cracking pressure

gtx1967jewison

Well-known Member
Does anyone know, are the cracking pressures the same on all 2 cyl diesels? Or do the bigger ones (830) use a higher psi than the (70-720) ?
- I know they use different tips with more holes.
Thanks.
 
My Bosch-Scintilla manual says 2400-2600 PSI for them all including R, 70, 80, 820, 830, and 840. Tip #s F1104R, R932R, F2140R, F2139R, R2587R,F3344R, F3210R, R2710R, and R2700R.
 
When I was rebuilding them I wanted the crack pressure within 50 lbs. of each other . Might not have been necessary but I felt that the timing might be effected some ,although it would only be milleseconds at best . You MUST keep the injectors with the pump that it is calebrated with on the test stand .
 

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