Quote:
Originally Posted by retrofitintl
I just completed construction of a pop tester from a bottle jack used as the power unit as per a very good and well illustrated how-to from this forum. Mine will not hold pressure and needs constant pumping. I guess I'll take it back apart and check my thread pin hole closures again. However, when I do rapid pump I am able to get up to about 100 bars and my first injector releases just before this value. Does anybody know what the proper release value is? And does anybody know what the penalty would be if the release pressure is too high?
Thanks in advance,
retrofitintl
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Hi
I also just built a bottle jack pop tester. Mine wouldn't hold pressure either until I resealed the pin hole on the pipe with JB Weld. It still doesn't completely hold pressure but leaks down slowly enough it can be used OK.
I understand the non-turbo injectors are supposed to pop at 115 bar (1600 psi) and the turbo injectors at 135 bar ( 1900psi) - at least with the 617 engine.
I just started testing some junk yard injectors. pumping slowly, 3 of them popped at 1900psi and the other 2 popped at 1500 & 1700 psi.
But when I pumped fast - one of them popped repeatedly at about 1300 psi. I'm not sure what to make of this - perhaps dirt n the injector?
Anyway, I'm just learning too - and would be interested in what you find with your tester.
Regards,
Joseph