2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Torqueing down the flywheel nut ?

Old 12-11-09 | 10:57 AM
  #26  
arghx's Avatar
rotorhead
iTrader: (3)
 
Joined: Aug 2004
Posts: 16,188
Likes: 438
From: cold
blasted that bitch with the impact gun on full and called it a day
Old 12-11-09 | 12:42 PM
  #27  
DriveFast7's Avatar
Blood, Sweat and Rotors
iTrader: (1)
 
Joined: Aug 2001
Posts: 3,742
Likes: 1
From: California
Every time I torqued that nut I had my 120lb girlfriend do chin-ups on a 3 foot cheater bar slid over the breaker bar. Until the cheater bar stopped moving downward.

Always owed her lunch after that.
Old 12-12-09 | 04:03 PM
  #28  
wackaloo13's Avatar
Rotary Enthusiast

iTrader: (3)
 
Joined: Jan 2007
Posts: 1,000
Likes: 0
From: st. louis
Originally Posted by DriveFast7
Every time I torqued that nut I had my 120lb girlfriend do chin-ups on a 3 foot cheater bar slid over the breaker bar. Until the cheater bar stopped moving downward.

Always owed her lunch after that.
pics or it didnt happen
Old 12-12-09 | 04:37 PM
  #29  
solareon's Avatar
Rotary Enthusiast

iTrader: (1)
 
Joined: Mar 2008
Posts: 797
Likes: 0
From: VA Beach
impact is much easier. I have a huge blue-point torque wrench that goes to 600 ft-lbs. Getting the stupid flywheel to hold still for that thing and then when the wrench clicks good luck
Old 12-13-09 | 08:26 AM
  #30  
GeTCrAzYKiD's Avatar
Zoom Zoom Boom
 
Joined: Nov 2002
Posts: 336
Likes: 0
From: South Florida
Here's the show stopper. I USED A 1" Impact gun. Good for 1200 ft lbs AND IT STILL CAME LOOSE @ 90psi of shop air. (we have 1/2" air fittings, I work at a CAT equipment dealer.) I knew it came loose cuz I removed the inspection plate and pryed back on the flywheel and man was it loose. Did it all again and did ir properly with a snap-on 600 ft lb torque wrench and no more problems. I'll never guess it again. Ive rebuild a number of motors since then and always torqued it. None came loose yet. Do it right.
Old 12-13-09 | 05:03 PM
  #31  
Puck's Avatar
Senior Member
iTrader: (1)
 
Joined: Sep 2002
Posts: 357
Likes: 0
From: Terrace Bay, Ontario
Originally Posted by GeTCrAzYKiD
Here's the show stopper. I USED A 1" Impact gun. Good for 1200 ft lbs AND IT STILL CAME LOOSE @ 90psi of shop air. (we have 1/2" air fittings, I work at a CAT equipment dealer.) I knew it came loose cuz I removed the inspection plate and pryed back on the flywheel and man was it loose. Did it all again and did ir properly with a snap-on 600 ft lb torque wrench and no more problems. I'll never guess it again. Ive rebuild a number of motors since then and always torqued it. None came loose yet. Do it right.
Just because you did all that, does not mean that the flywheel was seated properly, when you tightened it. Although, with a taper fit, it is hard, near impossible, to misalign it. Maybe the key was holding it from seating all the way. If that was the case though, you would have had trouble bolting up the transmission.

How do you know you were getting 1200 ftlbs from your gun? Is that the rating for tightening, or loosening? You do make a good point though, if you do it with an impact gun, you don't know exactly how much torque you are putting on it.

I like to mark the flywheel and nut before I remove them, and then reinstall to the same mark, or a little more.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
10-07-15 08:12 PM


Thread Tools
Search this Thread
Quick Reply: Torqueing down the flywheel nut ?



All times are GMT -5. The time now is 05:58 PM.