Larry Schramm Posted March 7, 2018 Share Posted March 7, 2018 I am working on a '29 Buick and need to retorque the head gasket. Would anyone have a torque sequence sheet and the torque amount for the head bolts. Appreciate any help and I have ordered a service manual. Thanks, Link to comment Share on other sites More sharing options...
keiser31 Posted March 7, 2018 Share Posted March 7, 2018 (edited) This may help....click on the photo a couple of times to enlarge. Edited March 7, 2018 by keiser31 (see edit history) 1 Link to comment Share on other sites More sharing options...
Larry Schramm Posted March 7, 2018 Author Share Posted March 7, 2018 Keiser31, Thank you very much. Link to comment Share on other sites More sharing options...
Graham Man Posted March 7, 2018 Share Posted March 7, 2018 Interesting I have always been a fan of center tighten and work your way out from the center. The Buick is entirely different. You will want to recheck the torque after a short while, I check after the first engine run cycle (full hot) and then again in a few weeks. Lots of opinions on using antisieze and other products, they do change the torques. Check to make sure you are using the correct head washers. Link to comment Share on other sites More sharing options...
Larry Schramm Posted March 8, 2018 Author Share Posted March 8, 2018 (edited) 10 hours ago, Graham Man said: Interesting I have always been a fan of center tighten and work your way out from the center. The Buick is entirely different. You will want to recheck the torque after a short while, I check after the first engine run cycle (full hot) and then again in a few weeks. Lots of opinions on using antisieze and other products, they do change the torques. Check to make sure you are using the correct head washers. Me too on the torque sequence. I am going to need to pull the head as it appears I have a bad head gasket from the previous installation being in the 35ft/lb range. Edited March 8, 2018 by Larry Schramm (see edit history) Link to comment Share on other sites More sharing options...
Graham Man Posted March 8, 2018 Share Posted March 8, 2018 (edited) Olson's Gaskets? I like the sandwiched asbestos and copper. I spray them down with Copper Coat, helps seal. If you have it apart I would think about surfacing the head to make sure it is flat, it might be the problem. Edited March 8, 2018 by Graham Man (see edit history) Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted March 9, 2018 Share Posted March 9, 2018 That Buick tightening sequence is the strangest I have ever seen. Has anyone used this before? I may be inclined to work from the middle to the outside like you would conventionally. Hugh Link to comment Share on other sites More sharing options...
Larry Schramm Posted March 9, 2018 Author Share Posted March 9, 2018 9 hours ago, Graham Man said: Olson's Gaskets? I like the sandwiched asbestos and copper. I spray them down with Copper Coat, helps seal. If you have it apart I would think about surfacing the head to make sure it is flat, it might be the problem. The plan is to get the head off this weekend and drop it off at the machine shop Monday. Maybe pick up a gasket at Chickasha next week. Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted July 18, 2021 Share Posted July 18, 2021 (edited) I do not think the head bolt tightening sequence is correct on that non GM worksheet. It goes against how I have been taught long ago about tightening cylinder heads. This is the correct head bolt sequence from GM for 1926 Buick. The Buick head is an odd bolt layout. It is treated with some bolts that are close together "as pairs" and works it's way in a circular pattern from the middle to the ends. Working evenly from the middle to the ends is how we do it today. That other one is very non conventional and I have never seen anyone tighten bolts down one side starting from the middle. That drawing has made it's rounds. This photo is from the 1926 GM export manual. Hugh Edited July 18, 2021 by Hubert_25-25 (see edit history) Link to comment Share on other sites More sharing options...
ILIKECARS53 Posted July 18, 2021 Share Posted July 18, 2021 I believe the sequence on the 1942 buick 320 st 8 is from the center out on one side then center out to the other end. Thanks Jim Link to comment Share on other sites More sharing options...
rocketraider Posted July 18, 2021 Share Posted July 18, 2021 On 3/7/2018 at 12:01 PM, Graham Man said: On 3/8/2018 at 9:03 PM, Hubert_25-25 said: That Buick tightening sequence is the strangest I have ever seen. The Buick is entirely different. Goes against every torque sequence I was ever taught too. Spiral or X sequence, one will still begin in the center and work to the outer edges. They often did things differently in Flint. Must have been something in the water... Sorry, couldn't resist!😼 Link to comment Share on other sites More sharing options...
Graham Man Posted July 20, 2021 Share Posted July 20, 2021 No I think it is correct, most cars have a center row of head bolts, my center bolt is the only one that is a tight fit, all the rest are clearance fit. That said I would still tighten the center bolts and work my way out in a circular pattern and uses coper coat for the gasket. Link to comment Share on other sites More sharing options...
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