Transmission problem Spins with case off But not when case is on.
#1
Honda-Tech Member
Thread Starter
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.
#2
Honda-Tech Member
iTrader: (1)
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.
#3
D Tranny Guru
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.
The new diff the clearance is too tight and pinching the diff enough that it won't spin.
#4
Honda-Tech Member
Thread Starter
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.
Where would shimming be required?
#5
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Re: Transmission problem Spins with case off But not when case is on.
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.
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:
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?
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?
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.
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.
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?
#6
Honda-Tech Member
Thread Starter
Re: Transmission problem Spins with case off But not when case is on.
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?
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?
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