new stall... bad noises
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Teching In
Joined: Mar 2013
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From: northern cali
new stall... bad noises so I just picked up a yank 3600 stall and a 4l60e off of nor Cal. Just finished the install and now it's making a horrible knocking noise. I didn't drive it. Just started it to check over everything. the noise got quieter when the Trans was in gear. Any ideas? I felt the 3 engagements of the stall going in. I measured across the bellhousing to the mounting pads to find 1 an 1/8
any ideas on what I can check?
any ideas on what I can check?
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From: Ann Arbor, MI
Glad to hear that you measured the mounting pad distance!
I would start by turning the engine at the crank by hand. (Breaker bar, extension and 22mm? socket). This is to test if the flexplate or converter bolts are hitting anything. Did you confirm the converter bolts were the correct length? And you tightened them in the 50-70 lbs range?
What kind of engine is it?
Beyond that you might need to isolate if the noise is coming from the engine, bell housing area or trans case.
I would start by turning the engine at the crank by hand. (Breaker bar, extension and 22mm? socket). This is to test if the flexplate or converter bolts are hitting anything. Did you confirm the converter bolts were the correct length? And you tightened them in the 50-70 lbs range?
What kind of engine is it?
Beyond that you might need to isolate if the noise is coming from the engine, bell housing area or trans case.
Thread Starter
Teching In
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From: northern cali
I did pick up the Trans and stall used but i'm not sure if it could be coming from those or something during my install.
The converter bolts were the stock ones so I stayed with those. I don't have a tq wrench but I used a 1/4 drive short ratchet.. I don't think I could have torqued much over that.
the motor is a ls1
The converter bolts were the stock ones so I stayed with those. I don't have a tq wrench but I used a 1/4 drive short ratchet.. I don't think I could have torqued much over that.
the motor is a ls1
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Joined: Aug 2010
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From: Ann Arbor, MI
That's probably not the problem.
I wanted to be sure it was an LS engine (and not an LT).
And that you didn't use overly long bolts.
And remembered to tighten them to some reasonable amount (and didn't leave them loose).
Make sure your starter gear is fully disengaged. IIRC we've had one case where the starter gear wasn't disengaging properly. There is only a limited number of things in the bell housing. Didn't leave a tool in there?
I wanted to be sure it was an LS engine (and not an LT).
And that you didn't use overly long bolts.
And remembered to tighten them to some reasonable amount (and didn't leave them loose).
Make sure your starter gear is fully disengaged. IIRC we've had one case where the starter gear wasn't disengaging properly. There is only a limited number of things in the bell housing. Didn't leave a tool in there?
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Thread Starter
Teching In
Joined: Mar 2013
Posts: 41
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From: northern cali
I used the same bolts that were already on the stock torque converter so I really doubt it to. I don't think anything could have gotten in there.
Ill pull off the starter tomorrow and turn over the motor to see if it could be the starter or if I can see any problem in there.
Ill pull off the starter tomorrow and turn over the motor to see if it could be the starter or if I can see any problem in there.
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