Crankshaft bolt torque?

TheBac

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
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Mid Michigan
It is NOT 105. No no no! I have no idea where you got that number, but please forget it right now.

You'll be snapping a pin and losing a balancer (and who knows what else) torquing it to 105.

I still have the 3/4" HF breaker bar from when I did my water pump years ago. Broke so many 1/2 bars it wasnt funny.
 
Burn Down

Burn Down

Hotrodder
Sep 14, 2008
7,092
28
48
Boise Idaho
The LB7 one I removed was installed by the hand of God... Had to use a 3/4 gun and 150 psi of service truck air... I'm with Tom, no f-ing way it was only 105 ftlbs.
 
Troysalm71

Troysalm71

Member
Feb 28, 2016
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0
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Bemidji, MN
TheBac said:
It is NOT 105. No no no! I have no idea where you got that number, but please forget it right now.

You'll be snapping a pin and losing a balancer (and who knows what else) torquing it to 105.

I still have the 3/4" HF breaker bar from when I did my water pump years ago. Broke so many 1/2 bars it wasnt funny.
Click to expand...

Got it haha thanks for the info. You said it was 260 on all data, I figure that was more like it my Mac impact isn't no pooch. We had one other one there an didn't budge it with the other impact.
 
TheBac

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,610
1,865
113
Mid Michigan
All I found for LML is:


Crankshaft Balancer Bolt
1st Step: 100 N·m / 74 lb ft
2nd Step: 90 degrees

I hate that GM uses angles.
 
Awenta

Awenta

Active member
Sep 28, 2014
4,090
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CT
Chevy1925 said:
Considering the correct torque is 74ft lbs, then 105*, you might want to start over
Click to expand...

TheBac said:
It is NOT 105. No no no! I have no idea where you got that number, but please forget it right now.

You'll be snapping a pin and losing a balancer (and who knows what else) torquing it to 105.

I still have the 3/4" HF breaker bar from when I did my water pump years ago. Broke so many 1/2 bars it wasnt funny.
Click to expand...

Burn Down said:
The LB7 one I removed was installed by the hand of God... Had to use a 3/4 gun and 150 psi of service truck air... I'm with Tom, no f-ing way it was only 105 ftlbs.
Click to expand...
I think he was referring to 105* not pounds.

Just give it hell with a breaker bar. But you won't be tightening it now since the loctite set. Unless you want to take it off and start over.

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Troysalm71

Troysalm71

Member
Feb 28, 2016
286
0
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Bemidji, MN
Awenta said:
I think he was referring to 105* not pounds.

Just give it hell with a breaker bar. But you won't be tightening it now since the loctite set. Unless you want to take it off and start over.

Sent from my SM-N910V using Tapatalk
Click to expand...

I didn't put loctite on it I could take it off an put it in there I didn't know I had too I'll get on that tho.
 
Awenta

Awenta

Active member
Sep 28, 2014
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Troysalm71 said:
I didn't put loctite on it I could take it off an put it in there I didn't know I had too I'll get on that tho.
Click to expand...
Oh sorry that wasn't you that started the thread. I just put blue on it. Wouldn't do red. But it isn't necessary.

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Awenta

Awenta

Active member
Sep 28, 2014
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Troysalm71 said:
I may do it still trying to find a way to lock the flywheel to get the balancer torqued.
Click to expand...
Where you located? If you don't feel like taking the starter out I can send you the locking tool. Or just buy one I think it's 45$


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