Torque specs

[Charlie69]

Does anyone know the torque specs for flex plate to crank bolts, and flex plate to torque convertor bolts for a 1976 620 L20B with the 3N71B automatic?

Edited September 18, 2009 by Charlie69
typo

[mazdat]

here's a 620 torque specs page

 

http://www.olddatsuns.com/620tech4.htm#TS2

Edited September 18, 2009 by mazdat

[Charlie69]

Thank you for the link, but there is no torque specs given for automatics.

 

Still looking for the torque specs for flex plate to crank bolts, and flex plate to torque convertor bolts for a 1976 620 L20B with the 3N71B automatic.

 

Thank you,

Charlie

Edited September 18, 2009 by Charlie69
typo

[1Low620]

Tried locating this information for you in my book.....it don't give specific models, just says

 

12-15ft lbs on 1970-1979 models and 16-22ft lbs on 1980-1988 models.

[datzenmike]

Do NOT forget the two spacers in front and behind the drive plate when mounting to the crank shaft!!!!

 

Drive plate (or flex plate) to crank bolt torque................. 101-116 ft. lbs.

 

Drive plate to torque converter........................................ 29-36 ft. lbs.

 

This is the FSM specs for a '78 620 L20B with 3N71B automatic. Gotta be the same.

[Charlie69]

Thank you Mike I appreciate it. I have been trying to locate those specs for a while now.

 

Where did you find the information if you do not mind me asking?

 

Ihave a 76 620 FSM and a 1980 720 FSM and was not able to locate those specs in either manual.

 

Charlie

Edited September 19, 2009 by Charlie69
Added

[datzenmike]

This is the FSM specs for a '78 620 L20B with 3N71B automatic. Gotta be the same.

 

Factory Service Manual for the '78 truck. I also have an '84 720 handy as well... same torque specs. It's at the back of the automatic transmission section just before the Special Service Tools

[Charlie69]

You are the Datsun man!:cool: Same as my 1976 620 FSM & MY 1980 720 FSM.

Thank you again,

Charlie

[1Low620]

Factory Service Manual for the '78 truck. I also have an '84 720 handy as well... same torque specs. It's at the back of the automatic transmission section just before the Special Service Tools

 

And my book says it covers every thing from 1970-1988! Not sure what torqs I listed, maybe the tranny pan? :confused:

[1Low620]

Never mind, after re-reading it a few times those are torq specs for the clutch cover -to- the flywheel!