Keaton 437 #1 Posted May 30 I am working on this lawn ranger again and I was wondering if anyone knew the head torque specs on a tecumpseh HT55 engine I believe it is a 1961- thanks Keaton Share this post Link to post Share on other sites
ri702bill 8,397 #2 Posted May 30 (edited) This should be of help for the torque and the pattern, about page 83, NOTE you will need to retorque the head several times after is goes thru a run & cool off cycle. Last H60 I did required 7 times... Tecumseh Manual 3-10 HP.pdf Edited May 30 by ri702bill Share this post Link to post Share on other sites
953 nut 55,401 #3 Posted May 30 Here is another manual. Share this post Link to post Share on other sites
Keaton 437 #4 Posted May 31 (edited) 1 hour ago, ri702bill said: This should be of help for the torque and the pattern, about page 83, NOTE you will need to retorque the head several times after is goes thru a run & cool off cycle. Last H60 I did required 7 times... Tecumseh Manual 3-10 HP.pdf 2.49 MB · 0 downloads what do u mean by the run & cool off cycle? i have never heard of that considering this is my first tecumpseh and i have only worked on small engines for a couple years and is that for a complete rebuild? @ri702bill Edited May 31 by Keaton Share this post Link to post Share on other sites
8ntruck 7,034 #5 Posted May 31 I would say that the retorque after run & cool down would be for any time that a head has been removed and reinstalled. I think that you are supposed tlo retorque the head until it retaines torque after a run & cool cycle. 1 Share this post Link to post Share on other sites
Keaton 437 #6 Posted May 31 ok makes sense so after I drive it the next day re torque it? never knew about that... that might not be good but all my mechines run good as of now Share this post Link to post Share on other sites
ri702bill 8,397 #7 Posted May 31 Tightening the head bolts compresses the new head gasket. Aluminum head, cast iron block, steel bolts & gasket. All expand & contract at different rates when heated to operating temp and returned to room temp. The gasket compresses a bit more each cycle until "solid". Ever go to remove a head bolt and it was already "loose" ?? Not properly torqued..... Share this post Link to post Share on other sites
