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Question About Tecumseh Lawn Mower 143.996704
hesd gasket replacement...

need spec's for head bolts torque and tightening sequence

Asked by kevin on 10/21/2008 2  Answers

ManualsOnline posted an answer 16 years, 1 month ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Jack posted an answer 13 years, 5 months ago

5 Head bolt torque is 15 - 18 ft-lbs. Tighten bolts in 4 ft-lb increments. Tightening sequence is: 3 o'clock, 11 o'clock, 6 o'clock, 12 o'clock, 5 o'clock, 7 o'clock, 1 o'clock. There is no 9 o'clock bolt, at least not on my engine. Remember to clean head and cylinder gasket surfaces thoroughly, and also check for cylinder head warpage. Lay head on a precision flat surface and make sure that warpage is no greater than .005 inches. A machine shop can easily do this for you if you prefer.
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Jack posted an answer 13 years, 5 months ago

0 Head bolt torque is 15 - 18 ft-lbs. Tighten bolts in 4 ft-lb increments. Tightening sequence is: 3 o'clock, 11 o'clock, 6 o'clock, 12 o'clock, 5 o'clock, 7 o'clock, 1 o'clock. There is no 9 o'clock bolt, at least not on my engine. Remember to clean head and cylinder gasket surfaces thoroughly, and also check for cylinder head warpage. Lay head on a precision flat surface and make sure that warpage is no greater than .005 inches. A machine shop can easily do this for you if you prefer.
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