Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
The Terminator
Driveline
After 26 spline input shaft and clutch change trans is noisy
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="bigwave" data-source="post: 15682810" data-attributes="member: 179097"><p>Here are my results, and I'm NOT "planning" on taking it back apart and changing the shaft again, I hope I don't regret it!!</p><p></p><p>Update from 8/19/17:</p><p>Car went back on lift, transmission came back out, I'll just go though what we found. A few notes, it just so happened that a semi retired individual who rebuilds large capacity jacks for the company who allows me to barrow their lift and trans jack on weekends was there and one of their hoist installers who is a semi retired fully qualified mechanic and get this, yes, he rebuilt transmission for years, including t56's in vets, he stopped by to do a few minutes work and assisted in the shimming and run out measuring of the input shaft! <img src="http://www.modularfords.com/images/smilies/smile-new.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p>Clutch: Still looked like new, no dust, no rubs, nothing</p><p>Idle bearing: still perfect plenty of grease and no rubbing on end of candle stick or inside the pilot hole all looked great</p><p>TOB: Perfect, looks good, still spins perfectly TOB sleeve still nice film of grease, etc.</p><p>Input shaft: perfectly centered in TOB sleeve, splines clean, not rubbing on anything no marks</p><p></p><p>Now for the removal of front of trans housing to get the input shaft out.</p><p>1st) Input shaft had what I felt was a lot of play, side to side and in and out, it was not like that when we put it back together, it was very tight, but spun freely</p><p>Note: it did spin freely and felt fine, but a lot of play, Update: on this, upon further reading this is pretty common in t56 with the Vett guys, so ???</p><p></p><p>Input shaft: removed, looked perfect no rubbing or dark spots on races or the conical bearings, no metal, no dark spots or fluid from rubbing, oil looked like new, it was new! 210 miles on this.</p><p></p><p>Notes: Counted teeth on new (26) and old 10spline shaft, both 31, compared the old and new shaft in every possible way without having some super high end equipment, all identical in every "seeable" way, I even reinstalled the old shaft and measured where it rode on the 4th gear-gear vs the new one, once again, identical.</p><p></p><p>Front bearing and race: perfect</p><p></p><p>Rear bearing and race: The one on the rear of the candlestick or input shaft, once again it looked perfect, the wizards who were there looked it over with magnifying glass and bright pin lights, neither of them could feel or see anything that did not look as good as it can. No hot spots, ware marks, etc.</p><p>Re assemble and shimming: as I stated above the shaft was loose, how did this happen?? I don't know, I'd speculate maybe a piece of debris from the packing of the new input shaft was somehow left behind?? I don't know, this is a mystery.</p><p>What we did: we reassembled it had a .0033 shim, went to a .0035 shim, still to loose, went to .0038 still too loose, went all the way to a .0042 shim before Tony, the guy who used to rebuild trannys would even setup his input gauge, he liked it, book calls for .0000 to .0002 of end play, with the .0042 shim and no RTV we had .00005 of end play and shaft turned freely by hand and the lateral movement was very little. His assessment was after RTVing it, it would be in the .0001 to xxxx level.</p><p></p><p>That's it, no smoking gun, all in specs, all looked nearly perfect after 210 miles, clutch still looked like new, no rubbing anywhere.</p><p>Put the trans back in and this time put the cheapest Dexron III fluid in it money can buy, this is ranch king 2 gallon jug $16 bucks from a local farm supply store. It, of course, meets or exceeds all Dex III, IIIa, yada, yada and farmers use it in their $500,000 combines and tractors without hesitation.</p><p></p><p>So, the results, noise level has been cut by 40 to 60% by my ear, not eliminated but much better, car shifts well no bad feel in the shifter or any new noises.</p><p>;</p><p>I will say first go around with this 2 weeks ago, 14-hours, 2nd time yesterday start to finish 5:20 minutes.</p><p>Still not silent, again it was NOT silent before changing it, but not sure what else to do, going to drive it for another few hundred miles and see how it goes.</p><p></p><p>Another note: I'm not 100% certain some noise isn't coming from the shifter itself.</p><p></p><p>Thanks a TON to Ed and J-Lo for sticking with me on this, we will see if I have it fixed or ????</p></blockquote><p></p>
[QUOTE="bigwave, post: 15682810, member: 179097"] Here are my results, and I'm NOT "planning" on taking it back apart and changing the shaft again, I hope I don't regret it!! Update from 8/19/17: Car went back on lift, transmission came back out, I'll just go though what we found. A few notes, it just so happened that a semi retired individual who rebuilds large capacity jacks for the company who allows me to barrow their lift and trans jack on weekends was there and one of their hoist installers who is a semi retired fully qualified mechanic and get this, yes, he rebuilt transmission for years, including t56's in vets, he stopped by to do a few minutes work and assisted in the shimming and run out measuring of the input shaft! [IMG]http://www.modularfords.com/images/smilies/smile-new.png[/IMG] Clutch: Still looked like new, no dust, no rubs, nothing Idle bearing: still perfect plenty of grease and no rubbing on end of candle stick or inside the pilot hole all looked great TOB: Perfect, looks good, still spins perfectly TOB sleeve still nice film of grease, etc. Input shaft: perfectly centered in TOB sleeve, splines clean, not rubbing on anything no marks Now for the removal of front of trans housing to get the input shaft out. 1st) Input shaft had what I felt was a lot of play, side to side and in and out, it was not like that when we put it back together, it was very tight, but spun freely Note: it did spin freely and felt fine, but a lot of play, Update: on this, upon further reading this is pretty common in t56 with the Vett guys, so ??? Input shaft: removed, looked perfect no rubbing or dark spots on races or the conical bearings, no metal, no dark spots or fluid from rubbing, oil looked like new, it was new! 210 miles on this. Notes: Counted teeth on new (26) and old 10spline shaft, both 31, compared the old and new shaft in every possible way without having some super high end equipment, all identical in every "seeable" way, I even reinstalled the old shaft and measured where it rode on the 4th gear-gear vs the new one, once again, identical. Front bearing and race: perfect Rear bearing and race: The one on the rear of the candlestick or input shaft, once again it looked perfect, the wizards who were there looked it over with magnifying glass and bright pin lights, neither of them could feel or see anything that did not look as good as it can. No hot spots, ware marks, etc. Re assemble and shimming: as I stated above the shaft was loose, how did this happen?? I don't know, I'd speculate maybe a piece of debris from the packing of the new input shaft was somehow left behind?? I don't know, this is a mystery. What we did: we reassembled it had a .0033 shim, went to a .0035 shim, still to loose, went to .0038 still too loose, went all the way to a .0042 shim before Tony, the guy who used to rebuild trannys would even setup his input gauge, he liked it, book calls for .0000 to .0002 of end play, with the .0042 shim and no RTV we had .00005 of end play and shaft turned freely by hand and the lateral movement was very little. His assessment was after RTVing it, it would be in the .0001 to xxxx level. That's it, no smoking gun, all in specs, all looked nearly perfect after 210 miles, clutch still looked like new, no rubbing anywhere. Put the trans back in and this time put the cheapest Dexron III fluid in it money can buy, this is ranch king 2 gallon jug $16 bucks from a local farm supply store. It, of course, meets or exceeds all Dex III, IIIa, yada, yada and farmers use it in their $500,000 combines and tractors without hesitation. So, the results, noise level has been cut by 40 to 60% by my ear, not eliminated but much better, car shifts well no bad feel in the shifter or any new noises. ; I will say first go around with this 2 weeks ago, 14-hours, 2nd time yesterday start to finish 5:20 minutes. Still not silent, again it was NOT silent before changing it, but not sure what else to do, going to drive it for another few hundred miles and see how it goes. Another note: I'm not 100% certain some noise isn't coming from the shifter itself. Thanks a TON to Ed and J-Lo for sticking with me on this, we will see if I have it fixed or ???? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Driveline
After 26 spline input shaft and clutch change trans is noisy
Top