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Y80-GSR tranny Problem (help!!!!!)

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Old 03-29-2009, 07:34 AM
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Default Y80-GSR tranny Problem (help!!!!!)

here's the problem:

Noise in acceleration ( 1st and 2nd) and morning start up ( or whenever the car is cool) loud noise like there is grinding or rubbing between two surfaces. It seems like it's the throwoutbearing... but I really don't know

i put the car in N and with my foot on the clutch and reved it up and no noise

i left the car in gear and pushed the clutch in no noise

Second test:

car is in neutral with clutch up, a slight noise but goes away sometimes.

i have the car in gear and try to accelerate and then it makes noise (1st and 2nd gear)

2 days ago I can't get into reverse and still can't. all other gears work perfect . they all engage and disengage.

can some help me out here with this headache of a problem.
Old 03-29-2009, 11:25 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

bump.. need help
Old 03-29-2009, 11:49 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Bearing issue. Probably not the throwout bearing though.

Is this an untouched transmission? It hasn't been opened up and tinkered with at all?
Old 03-29-2009, 04:51 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

from the limited info, ISB.

no need to bump threads in this forum, low traffic anyways, all you will do is **** people off
Old 03-29-2009, 05:16 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by Mista Bone
from the limited info, ISB.

no need to bump threads in this forum, low traffic anyways, all you will do is **** people off
ISB....how do u fix that problem?
Old 03-29-2009, 06:11 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

replace the bearing.
Old 03-30-2009, 06:08 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by Mista Bone
replace the bearing.

would that be the bearing that sits on the top where the pin/ clip is suppose to be seperated when openning the tranny?
Old 03-30-2009, 06:10 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by EG-evokilla
would that be the bearing that sits on the top where the pin/ clip is suppose to be seperated when openning the tranny?
There are two input shaft bearings (as well as a few others throughout the trans). Without opening your casing up ourselves, and without the help of ESP or X-Ray vision, we can only help so much. So... pull the casing open and find out.
Old 03-30-2009, 06:29 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by Honda Bull
There are two input shaft bearings (as well as a few others throughout the trans). Without opening your casing up ourselves, and without the help of ESP or X-Ray vision, we can only help so much. So... pull the casing open and find out.
well if you tell me where they are, that's how i will know what to look for.
this is like totally new to me bro.is it the one that sits on the mainshaft?
Old 03-30-2009, 07:33 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

the isb is the first bearing, on the main shaft, closest to the engine and clutch, while having it open check the main shaft bearing because that could also be the problem.
Old 03-30-2009, 08:24 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by EG-evokilla
well if you tell me where they are, that's how i will know what to look for.
this is like totally new to me bro.is it the one that sits on the mainshaft?
Well. We say it could possibly be the input shaft bearing. In reality, it may not. And thus, you'll want to check EVERY bearing in the transmission. So you'll have to look at / test them all anyhow.

The input shaft bearing is at the top of the mainshaft in the transmission casing. The other input shaft bearing (mainshaft bearing) sits in the bell housing at the bottom of the mainshaft. There are also three bearings on the countershaft. Not to mention several small/thin needle bearings throughout the gear stacks.
Old 03-30-2009, 10:03 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by Honda Bull
Well. We say it could possibly be the input shaft bearing. In reality, it may not. And thus, you'll want to check EVERY bearing in the transmission. So you'll have to look at / test them all anyhow.

The input shaft bearing is at the top of the mainshaft in the transmission casing. The other input shaft bearing (mainshaft bearing) sits in the bell housing at the bottom of the mainshaft. There are also three bearings on the countershaft. Not to mention several small/thin needle bearings throughout the gear stacks.
understood. thanks and also tranny is out but noticed that the interlocking pin that you are suppose to seperate when removing the casing is bent. would that affect the way the countershaft movement?
Old 03-30-2009, 10:33 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Have you checked the fluid lately??
Old 03-30-2009, 05:18 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by EG-evokilla
understood. thanks and also tranny is out but noticed that the interlocking pin that you are suppose to seperate when removing the casing is bent. would that affect the way the countershaft movement?
Honda BUll reaf the quote and tel me what you think
Old 03-30-2009, 07:44 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

pics of what you think is bent, I like tranny **** (transmission pics) and makes getting at the problem over the internet alot easier.
Old 03-31-2009, 07:11 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

QUOTE=Mista Bone;37976534]pics of what you think is bent, I like tranny **** (transmission pics) and makes getting at the problem over the internet alot easier.[/QUOTE]
here's a pic of what I am talking about.Name:  Picture010.jpg
Views: 2704
Size:  152.5 KB its your before and after pic. but on my end in placing the interlocking pin back in it never closed properly in the groove as shown in the first pic so it looks like the second pic but slightly bent up a little
Old 03-31-2009, 07:14 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

QUOTE=Mista Bone;37976534]pics of what you think is bent, I like tranny **** (transmission pics) and makes getting at the problem over the internet alot easier.[/QUOTE]



here's a pic of what I am talking about its your before and after pic. but on my end in placing the interlocking pin back in it never closed properly in the groove as shown in the first pic so it looks like the second pic but slightly bent up a little.
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Old 03-31-2009, 09:46 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by EG-evokilla
understood. thanks and also tranny is out but noticed that the interlocking pin that you are suppose to seperate when removing the casing is bent. would that affect the way the countershaft movement?
Well, it's not going to help any. lol You'll just have to pick up another one and replace it.

Have you gotten the chance to open the trans up and see what the problem was?
Old 03-31-2009, 01:10 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

flip tranny over, countershaft should drop in and lock.
Old 03-31-2009, 04:53 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by Honda Bull
Well, it's not going to help any. lol You'll just have to pick up another one and replace it.

Have you gotten the chance to open the trans up and see what the problem was?
opened the transmission up, checked all the bearings, checked synchros, gears, pins, even the factory LSD to. I didnt see anything out of the ordinary.
I"m going to clean the gears thoroughly and the sychros as well. Do you think I should grease the bearings? would that help at all? the throwout bearing looked really bad as well as the throwout fork that sits on the ISB. ( you know I mean) I'm going to replace it. tomorrow I plan on taking apart the clutch and inspecting it as well as the flywheel. Also will check the pilot bearing as well. Is there a specific torque that you are suppose to tighten the transmission crews? and if they are to tight would that affect the shift forks?
Old 03-31-2009, 06:28 PM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Originally Posted by EG-evokilla
Do you think I should grease the bearings? would that help at all?
No real need to use grease on anything internal. Just make sure the bearings are well oiled. Definitely put some grease on the input shaft / throw out bearing. You can grease up the ball that the TOB fork pivots on as well.

Originally Posted by EG-evokilla
Is there a specific torque that you are suppose to tighten the transmission crews?
20~ ft-lbs.

Originally Posted by EG-evokilla
and if they are to tight would that affect the shift forks?
Nope. The shift forks move freely up and down. The casing just keeps them on course.

Surprised you couldn't find anything bad in the transmission if indeed you had noise like you mentioned.

Also, when you mentioned the c-clip being bent; was it bent upon removal, or did it bend when you closed the casing (if you even sealed up the trans yet)?
Old 04-01-2009, 07:34 AM
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Default Re: Y80-GSR tranny Problem (help!!!!!)

Also, when you mentioned the c-clip being bent; was it bent upon removal, or did it bend when you closed the casing (if you even sealed up the trans yet)?[/QUOTE]


it was bent when I opened it up. the area where you use the wrench in it. the screw that covers it
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