Jerry Weller Posted February 20, 2020 Share Posted February 20, 2020 What is the torque lbs. for exhaust manifold bolts on a 865 V-8 Quote Link to comment Share on other sites More sharing options...
Rob Posted February 20, 2020 Share Posted February 20, 2020 (edited) They are 3/8-16 grade 5 so about 20-25 foot pounds would be good. While the manifolds are off I'd lay a straight edge across the sealing surfaces to ensure they are flat. If not it would be a good time to have them "planed, flycut, decked" or whatever it's called in your neck of the woods to ensure they'll seal. Standard procedure with exhaust manifolds while off for me. Edited February 20, 2020 by Rob Quote Plodding along with no job nor practical application for my existence, but still trying to fix what's broke. Link to comment Share on other sites More sharing options...
Jerry Weller Posted February 20, 2020 Author Share Posted February 20, 2020 Thank you for your help Quote Link to comment Share on other sites More sharing options...
br549 Posted February 20, 2020 Share Posted February 20, 2020 My old TS442 service manual shows 60lbs torque on exhaust bolts. Quote Link to comment Share on other sites More sharing options...
Jerry Weller Posted February 20, 2020 Author Share Posted February 20, 2020 Thanks,don't suppose it gives a pattern, or just start on the inside and work my way out Quote Link to comment Share on other sites More sharing options...
br549 Posted February 20, 2020 Share Posted February 20, 2020 Shows no pattern, I would just go half torque in a x pattern first round and than final torque. Quote Link to comment Share on other sites More sharing options...
Jerry Weller Posted February 20, 2020 Author Share Posted February 20, 2020 Thanks again Quote Link to comment Share on other sites More sharing options...
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