Notices
Transmission & Drivetrain Gearboxes, Differentials, Clutches

Transmission problem Spins with case off But not when case is on.

Thread Tools
 
Search this Thread
 
Old 04-18-2011, 12:45 PM
  #1  
Honda-Tech Member
Thread Starter
 
coreysef's Avatar
 
Join Date: Jan 2008
Location: Southside, GA
Posts: 90
Received 0 Likes on 0 Posts
Default Transmission problem Spins with case off But not when case is on.

Alright the transmission is a cable s1 b16 tranny, I put a viscous lsd in once previous owner removed the Quaife.Well transmission worked fine before is what I was told.I put the lsd in and transmission shifts and spins fine with the case off.In every gear it spins with the case off.But once I put the case on it doesnt spin.I noticed that the new lsd sits maybe about a hair higher because I had to shave the case to get it to fit.But it spins fine with the case off just when I put the case on it doesnt spin.It will spin if in neutral but the differential stays still.But when I put it in gear it doesnt spin at all.
Old 04-18-2011, 06:47 PM
  #2  
Honda-Tech Member
iTrader: (1)
 
David @ Synchrotech's Avatar
 
Join Date: Nov 2008
Location: San Dimas CA
Posts: 966
Likes: 0
Received 2 Likes on 2 Posts
Default Re: Transmission problem Spins with case off But not when case is on.

The early viscous LSD came in the Y1 with a 64 tooth ring gear, The S1 had a 66 tooth ring gear. If you are using the S1 countershaft with a 64 tooth R/G then you have a mis matched set. If you are using a match set C/S and R/G it could be a preload problem. Try installing only the diff and closing the two case halves with a few bolts. The diff should turn freely but not move in the case.
Old 04-18-2011, 09:15 PM
  #3  
D Tranny Guru
 
Mista Bone's Avatar
 
Join Date: Oct 2001
Location: Cincity, OH, USA
Posts: 8,725
Received 5 Likes on 5 Posts
Default Re: Transmission problem Spins with case off But not when case is on.

shimming is required....

The new diff the clearance is too tight and pinching the diff enough that it won't spin.
Old 04-19-2011, 05:51 AM
  #4  
Honda-Tech Member
Thread Starter
 
coreysef's Avatar
 
Join Date: Jan 2008
Location: Southside, GA
Posts: 90
Received 0 Likes on 0 Posts
Default Re: Transmission problem Spins with case off But not when case is on.

Originally Posted by Synchrotech-Transmissions
The early viscous LSD came in the Y1 with a 64 tooth ring gear, The S1 had a 66 tooth ring gear. If you are using the S1 countershaft with a 64 tooth R/G then you have a mis matched set. If you are using a match set C/S and R/G it could be a preload problem. Try installing only the diff and closing the two case halves with a few bolts. The diff should turn freely but not move in the case.
The Lsd came from a s1 transmission.It didnt come from a y1 I dont think ill have to make sure but im sure it wasnt a y1 but if it was the ring gear it wouldnt spin at all correct?It spins fine in every gear.When the case is off its just when I put the case together is when the differential doesnt spin.Neither will the MS if I put it in neutral the mainshaft spins but differential doesnt spin either way.With the case off differential spins in neutral.

Originally Posted by Mista Bone
shimming is required....

The new diff the clearance is too tight and pinching the diff enough that it won't spin.
Where would shimming be required?
Old 04-19-2011, 06:45 AM
  #5  
Honda-Tech Member
 
Honda Bull's Avatar
 
Join Date: Nov 2004
Location: 40.201N, 77.189W, PA
Posts: 4,738
Likes: 0
Received 7 Likes on 4 Posts
Default Re: Transmission problem Spins with case off But not when case is on.

Originally Posted by coreysef
Where would shimming be required?
I've already explained that both the differential and mainshaft require thrust shims in your PMs you've sent me. You didn't answer me the first time, so I had to ask again.

Originally Posted by Honda Bull
Originally Posted by Honda Bull
So both the differential and mainshaft are new? Not original to the transmission case? What are the differential and mainshaft thrust clearances set to?
Again... I'm not being a dick, but if you can't answer what I ask you, I cannot help you. Answer my question please. Thrust clearance/preload is what the diff and mainshaft are shimmed to. You'll probably have to ask the Acura tech what he/she shimmed the mainshaft to. What did YOU shim the diff to, since you installed the diff. That's something you can answer.
You didn't know either clearance setting. Then, I gave you this:

Originally Posted by Honda Bull
The only real reasons why a trans will not spin while in gear but spins in neutral would be:
1. More than one gear engaged at the same time.
2. Differential thrust clearance WAY too tight.
3. Incorrect gear pair(s) in mesh.
4. Something jamming a gear or bearing.
What I meant by (1) was if someone assembled the trans incorrectly, had the reverse idler engaged into gear so neutral was actually reverse, so when you selected a forward gear, you'd have two gears (one forward and one backward at that) engaged at the same time... which doesn't work. Other than that, you're getting the same info from others here about the wrong gear in mesh or diff clearance too tight, so not sure why you didn't believe me when you came to me for help. Unfortunately, we can't even solely determine your problem over the internet without the transmission in front of us to see first-hand. Like I said, YOU have to get in there and figure it out. We've given you plenty of potential problems to look for. We've told you to check differential clearance. So get to it. The internet isn't going to do it for you.

p.s. You definitely left some information out for me though that you're finally revealing here. Where did you actually take material out of the case at? You led me to believe it was the oiling fins in the bell housing which is common for the cable transmissions due to the OEM viscous differentials. Now it sounds like it's the transmission housing you took material from after you said the diff sits up higher. Pictures?
Old 04-21-2011, 10:43 AM
  #6  
Honda-Tech Member
Thread Starter
 
coreysef's Avatar
 
Join Date: Jan 2008
Location: Southside, GA
Posts: 90
Received 0 Likes on 0 Posts
Default Re: Transmission problem Spins with case off But not when case is on.

Originally Posted by Honda Bull
I've already explained that both the differential and mainshaft require thrust shims in your PMs you've sent me. You didn't answer me the first time, so I had to ask again.



You didn't know either clearance setting. Then, I gave you this:



What I meant by (1) was if someone assembled the trans incorrectly, had the reverse idler engaged into gear so neutral was actually reverse, so when you selected a forward gear, you'd have two gears (one forward and one backward at that) engaged at the same time... which doesn't work. Other than that, you're getting the same info from others here about the wrong gear in mesh or diff clearance too tight, so not sure why you didn't believe me when you came to me for help. Unfortunately, we can't even solely determine your problem over the internet without the transmission in front of us to see first-hand. Like I said, YOU have to get in there and figure it out. We've given you plenty of potential problems to look for. We've told you to check differential clearance. So get to it. The internet isn't going to do it for you.

p.s. You definitely left some information out for me though that you're finally revealing here. Where did you actually take material out of the case at? You led me to believe it was the oiling fins in the bell housing which is common for the cable transmissions due to the OEM viscous differentials. Now it sounds like it's the transmission housing you took material from after you said the diff sits up higher. Pictures?
See the whole thing I was trying to figure out was which shims you were talking about.I know the shim and thrust washer.But after research I found out about the differential sometimes needs to be shimmed for the clearance of the case on both sides.I completely understood what you were explaining but I figured you didnt understand what I was asking you.Thanks for your help think I got it figured out had a bad bearing.And wouldnt let it spin once the case was compressed I did like you told me of installing just the differential and see if it spun and it didnt.I replaced that differential with another in the same case and it spun just fine.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
playlife
Honda Prelude
4
06-03-2011 12:12 PM
DOHCarp
Drag Racing
10
10-21-2010 08:59 PM
Skinny_REX
All Motor / Naturally Aspirated
3
01-21-2006 02:24 PM
Skinny_REX
Tech / Misc
1
01-20-2006 07:08 AM
Roky
Tech / Misc
5
04-16-2005 03:04 PM



Quick Reply: Transmission problem Spins with case off But not when case is on.



All times are GMT -8. The time now is 08:40 PM.