Sir Psycho
holstrich 2.0
- Joined
- Sep 27, 2008
- Location
- Austin TX
The 18mm and 19mm head bolts that attach the AW71 bellhousing to the engine block, what's their torque spec?
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What is the torque spec for bellhousing bolts?
- Thread starter Sir Psycho
- Start date
MasterBlaster
Well-known member
- Joined
- Feb 16, 2009
- Location
- Port Coquitlam
Tighten until the threads strip out, then back off 1/4 turn. 
Haynes says:
M10: 26-37 ft-lbs
M12: 41-66 ft-lbs
Example: here's an M10 bolt (10mm diameter threads).
PS: You can't always go by the head size (18/19). I've found several car brands that use the same thread size and pitch, but different heads.
Haynes says:
M10: 26-37 ft-lbs
M12: 41-66 ft-lbs
Example: here's an M10 bolt (10mm diameter threads).
PS: You can't always go by the head size (18/19). I've found several car brands that use the same thread size and pitch, but different heads.
John V outside agitator
Active member
- Joined
- Mar 25, 2005
- Location
- Sleezattle, WA, USA
Same as any other M12 x 1.75 bolt
It is the bolt size and pitch and grade which sets the torque needed.
Don't you have a book?
What are you doing working on a car without a book?
What did you just do? Did you torque anything prior to this?
They don't need torquing, they are bell housing biolts...Pull as hard as you can with an ordinary ratchet handle.
It is the bolt size and pitch and grade which sets the torque needed.
Don't you have a book?
What are you doing working on a car without a book?
What did you just do? Did you torque anything prior to this?
They don't need torquing, they are bell housing biolts...Pull as hard as you can with an ordinary ratchet handle.