Setting timing on 93 trans am

[97z28convt]

Oh and by the way... Prob use new hardened bolts.... I just freaking snapped one of mine off in My cam torqueing to 74. As required.... So freaking pissed... Had the timing all done and chain installed etc.... Now I gotta take My brand new cam to a machine shop...grrrrrr... O need a few shots

[shoebox]

Originally Posted by 97z28convt

Oh and by the way... Prob use new hardened bolts.... I just freaking snapped one of mine off in My cam torqueing to 74. As required.... So freaking pissed... Had the timing all done and chain installed etc.... Now I gotta take My brand new cam to a machine shop...grrrrrr... O need a few shots

Ummm...74 is for the crank hub bolt. The cam sprocket bolts are 18. No way those little bolts would ever be that much torque.

[97z28convt]

You sure about that? Unless I read My chilton wrong.. but that makes sense given they are omly 3/8 bolts... Unfortunately I don't think that effected My bolt as I barely had it more than hand tight when I felt it stretch and snap.

[shoebox]

Originally Posted by 97z28convt

You sure about that? Unless I read My chilton wrong.. but that makes sense given they are omly 3/8 bolts... Unfortunately I don't think that effected My bolt as I barely had it more than hand tight when I felt it stretch and snap.

74, 75 for the hub. Yes, very sure. I would replace all the cam bolts.

[97z28convt]

Oh yeah .. without a doubt

[Racy Roadmaster]

Dont forget some of those specs. may have been listed in inch pounds,not saying they were but a posibility. The most torque in ft/lbs for a grade 8
3/8-24 cap screw that I ever saw was 35 ft /lbs. ed

[97z28convt]

Yeah i thought about that too. I dont know anymore... Im just gonna ask My local machi.e shop when I pick up the cam with bolt extruded. I figured let the pro do it b4 I mess something up.. 30 was well worth it