any help greatfully recivedhave a 1978 153 CID mercruiser inboard which i am stripping down to overhaul, but have no manual for torque setting.if you can help i needhead settings and sequencebig end and mains settingsinlet and exhaust valve clearance and how to set (hot/cold running or static)the book code the ISBN no. of the back of a manual next to the bar code, for this engine would be even better as i can order onethanks again
Cylinder head torque is 93 ft lbs.10 6 2 3 79 5 1 4 8Valve setting is one turn down from zero lash.Valve face angle is 45 degrees for both. Seat angle is 46 degrees.Main bearing cap 65 ft lbsManifold to head 23 ft lbsRods (11/32-24) 33 ft lbsRods (3/8-24) 40 ft lbsWhat else you need?
thanks for you help can you run me through the valve clewrance setting as most of the engines ive worked on have been overhead cam with hydralic tappits.the last thing i worked on with ohv was about 15 years ago
getting a manual before an overhaul would be ideal since all of this info and more is in there. I have the same motor and invested in the service manual.