97volvoman Posted November 28, 2018 Share Posted November 28, 2018 need some help determining approx torque specs and tightening sequence for a 1932 series 50 Link to comment Share on other sites More sharing options...
Mark Shaw Posted November 29, 2018 Share Posted November 29, 2018 (edited) For head bolts? An internet search will yield charts with maximum torques by bolt size & fine or coarse threads. If you use the original bolts, do not torque to maximums. Edited November 29, 2018 by Mark Shaw (see edit history) Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted November 29, 2018 Share Posted November 29, 2018 This is what I use for my 1925. You have to be careful using modern torque numbers as the old bolts are not as strong as the modern stuff. Note that I have 3 different head bolt torque sequences. Also note that connecting rod bolts have different torque values based on the series of Buick (different sized connecting rod bolts). Hugh Link to comment Share on other sites More sharing options...
Bob Engle Posted November 30, 2018 Share Posted November 30, 2018 The 32 Specs manual says "It is important that the cylindeer head bolts are not pulled down tighter than can be done with a 9" wrench using one hand on the wrench". I personally think it is mor e important to tighten the head in small increments. I am not fond of their tighrning sequence. I prefer to start in the middle and work side to side out to the ends. I tighen in 10 # increments up to 60 psi and then check again after a warming sequence on the engine. The key is to not distort the cylinder head, but pull it down uniformly. If replacing the head bolts, I do not recommend grade 8 bolts. They require more torque to stretch them. I have found that many 32 cylinder heads have had the bottom of the hex bolts rounded off and also rounded cylinder head bolt hole edges. I have counter bored the holes and installed a hardened washers flush with the cylinder head top surface, along with new head bolts to prevent further damage to the cylinder heads . Bob Engle 1 Link to comment Share on other sites More sharing options...
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