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5.3 t56 question

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Old Oct 31, 2016 | 05:46 PM
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So I recently swapped a t56 in my 92 s10 behind a 5.3. My question is how do you know you have the input shaft inside of the pilot bearing without actually looking inside of it? I feel like when I mated the transmission in the bell housing that I ended up pushing the pilot bearing all the way in the crank instead of the correct placement. I couldn't get the transmission to come flush with the bell housing when I was installing it and ending up using the bolts to suck in the gap. Now when I get off the clutch I hear lots of rattle. It also happens when I shut the engine off. Any thoughts?
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Old Oct 31, 2016 | 06:56 PM
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I'm not very familiar with t56s but I am with BMWs, mainly mini cooper's, and most that I see with a rattling throughout bearing, it's either not seated right, or bearing is not functioning properly and usually ruined. hopefully t56 experts can chime in
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Old Oct 31, 2016 | 08:00 PM
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That pilot bearing is a snug press fit. I doubt u can push it in to the crank with the input shaft. Depending on how hard or if u bend and twist the Trans while trYing to force it to seat you can damage the input shaft. It's possible it could b the input shaft bearing or a number of other things.
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Old Oct 31, 2016 | 08:35 PM
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The only way I would be able to sleep is to pull trans back out and look, couple hour job.
For me, if trans. doesn't push on there is something not quite right.
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Old Oct 31, 2016 | 08:58 PM
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do you have to set up the throwout bearing depth as well?
If so it may not be riding on the diaphragm of the pressure plate correctly.
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Old Oct 31, 2016 | 09:16 PM
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It didn't take much to tighten the bolts in when I installed it but it seems to run fine also. I do have a small whine but I think that's inside the tranny. I turned each bolt a few turns all the way around before it completely seated on the bell housing. It wasn't too much of a gap, maybe about 1/4 to 1/2 inch.
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Old Oct 31, 2016 | 09:17 PM
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Originally Posted by TurboChapman
do you have to set up the throwout bearing depth as well?
If so it may not be riding on the diaphragm of the pressure plate correctly.
I'm not sure what you're talking about with this? Could you explain please. I thought all you needed to do is bleed the slave and you're good
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Old Oct 31, 2016 | 09:20 PM
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Originally Posted by jayyk31
That pilot bearing is a snug press fit. I doubt u can push it in to the crank with the input shaft. Depending on how hard or if u bend and twist the Trans while trYing to force it to seat you can damage the input shaft. It's possible it could b the input shaft bearing or a number of other things.
see I'm thinking the same thing. I don't think I could have pushed it further into the crank cause I didn't use a lot of torque to tighten the bolts for it to seat. I just don't want to take everything back off again to check but it's looking like that might need to happen
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