Help! Camshaft bolts breaking!
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Joined: May 2011
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Help! Camshaft bolts breaking! I'm installing my camshaft, got the retainer plate in then go to install the sprocket and BAM! broke a bolt. so i go buy new arp bolts, BAM broke another one! i am only trying to torque it to 26 ft lbs and the break. now i got one stuck and i can get it out... gonna get a extractor and see if that will work...
Guess the big Q is what am i doing wrong? UGH so
frustrated
Guess the big Q is what am i doing wrong? UGH so
frustrated 26 ft-lb is the correct torque spec. I've never had this happen before, what kind of torque wrench (clicker or bar) do you have? have you ever had your torque wrench calibrated?
Thread Starter
Registered User
Joined: May 2011
Posts: 2
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i'v used two different wrenches i have, both new. and when i apply the force it doesnt feel like much at all. turns so easy.... then SNAP and its off. does anyone have the specs for these bolts? only thing i can think of is that these bolts are longer? i am racking my brain and all my gear head friends brains on whats up...... IDK how you could brake these bolts so easy, and its so easy! they say 10.9 right on top!
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Verdad Gallardo Even if the bolts are too long or the threads are trashed, 26 ft-lbs is not enough to break a stock bolt or ARP. It wouldn't even break a grade 5 or 8.8 equivalent. You are reading the wrenches wrong or they are both way off. If you are using a 1/2" torque wrench at the very bottom of its scale, that might be the problem. Torque wrenches are not very accurate when you get to the very bottom of their scale.
Shane
Shane
Even if the bolts are too long or the threads are trashed, 26 ft-lbs is not enough to break a stock bolt or ARP. It wouldn't even break a grade 5 or 8.8 equivalent. You are reading the wrenches wrong or they are both way off. If you are using a 1/2" torque wrench at the very bottom of its scale, that might be the problem. Torque wrenches are not very accurate when you get to the very bottom of their scale.
Shane
Shane
