Fritz Lang
Recruit
- Joined
- Nov 21, 2017
- Messages
- 3
I have a MD31A Volvo engine, 1988. Replacing seals. What is the proper torque for the mounting nuts ??
Thanks.
Thanks.
Tightening Torques: Tightening torques for vital joints that must be tightened with a torque wrench are listed in work-shop manual “Technical Data”: “Tightening Torques "and are contained in work descriptions in this Man-ual. All torques apply for cleaned threads, screw heads and mating surfaces. Torques apply for lightly oiled or dry threads. If lubricants, locking fluid or sealing compound are required for a screwed joint this information will be contained in the work description and in “Tightening Torques” Where no tightening torque is stated for a joint use the general tightening torques according to the tables below. The tightening torques stated are a guide and the joint does not have to be tightened using a torque wrench.
Dimension, Tightening Torques
Nm. lbt.ft;
M5, 6. 4.4;
M6, 10. 7.4;
M8, 25. 18.4;
M10, 50. 36.9;
M12, 80. 59.0;
M14, 140. 103.3;
Though this is not for your engine, page 7 can be used a general guide for how Volvo goes about Repair instructions, https://www.scribd.com/doc/94969381/...Service-Manual
From a Merc 4 cylinder service manual: Step 2, Tighten fasteners evenly and torque to 23 lb. ft. (33 N?m), starting in center and working out toward ends.
"External components
27. Install the exhaust manifold with new gaskets and the
thermostat housing. (Locate the cable harness between
the thermostat housing and the water circulation pump.)
Install the oil dipstick.
Only your elbow is calibrated in ft*lbs. When you're working in inch*lbs, it's a calibrated wrist.... would probably just end up using what is described as a calibrated elbow...