I am working on a 95 3100 from a monte carlo. I just replaced intake manifold gaskets, and used the torque specs listed on this site at the left of 15 then 22 ft lbs in sequence. Now however I noticed in my haynes manual that it lists something like 115 in-lbs on the 4 center bolts, then 18 ft-lbs on the corner bolts. Which method is correct? I did them all to 22, this something I need to go back and redo?
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LIM Bolt torque?
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here are the torque specs
The torque specification is a 2-step process; tighten the vertical lower intake manifold bolts (the four middle ones) to 7 Nm (62 lb in).
Tighten the diagonal lower intake manifold bolts (two on each end) to 7 Nm (62 lb in).
Tighten the vertical lower intake manifold bolts (the four middle ones) to 13 Nm (115 lb in).
Tighten the diagonal lower intake manifold bolts (two on each end) to 25 Nm (18 lb ft).sigpic
99 Grand Am GT
3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
1357 cam 227 233 .050 dur 515 515 lift 112 lsa
15.232@88.85mph on stock 3400---New time to come
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