Well i just finished my road race turbo build and was doing some engine break in. Well on my way back to my apt i was sitting at the stop light ...turned green so i proceed like normal to go and i hear a click and my car turns off i try to start it and got nothing. Upon poping my hood i find the cam gear no where it should be. What the hell would cause this:
yes thats part of my compcams 95300 still in there.
sucks man now i have to rip the damn thing apart again and see if any of the valves are bent which a couple probably are and fix it and then suffice with a stock cam....dammit.
Thats surprising. If you had said it was OBX or something I would have said that it was just a POS (Ive seen an OBX tear itself up before), but Im thinking maybe something caused this, like maybe you over torqued it like beaver said.
Ive seen this to some extent. Cam locked up and the timing belt didnt break, so the tensioner pulled out. We thought we had forgotten to torque the tensioner until we saw the cam.
The keyway on the cam gear was starting to twist as well.
it was rubber from a previous timing belt setup...gates racing thats a different story
rocker arm assembly was torqued per helms manual camshaft bolt was hand tightened with my ~7inch long 12mm wrench
timingbelt tension was set per helms manual:3 theeth rotation then tighten tensioner
i have yet to do any further inspection on the head to see the story
i have had this camshaft for 2 years and it seems kinda odd that it failed now when everything torque wise is the same
the oil pump was in the lower boundries for clearences so i doubt it was an oiling issue. This literally happened at 2k rpms.
damn!!!!!!! that is what my crank key looks ATM FML looks like the cam got locked up and just snaped or something in the timing belt area jammed up and put a pulling motion (of sorts) on the belt then thrue cam gear causing the cam end to twist
i have seen this before, the cam cap closest to the gear is over torqued and puts to much heat/load on the end of the cam and then seizes up and the cam gear breaks off
seen this a million times, does the remaining camshaft spin freely after the rocker arms are backed off ?
if you liked the camshafts performance, send me the broken cam. and I will cut ya a smokin deal on another one. I will profile the cam to see if we have this tooling. if not I will make it !
yes cam didnt slip one bit i am very surprised. All in all i believe at some point in time i over torqued then torqued correctly and the cam locked up...oh well head is off to the machine shop getting line bored and now i just have to get a different cam
Sucks. I'd say lack of lubrication or overtorqued something.
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