- Joined
- Jul 18, 2022
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- 255
I decided to tackle fixing a TR580 with bearing noise. There is some information available online but not much. Parts are hard to find also. Couple of Youtube Videos and the Forester Factory Service manual has enough info to disassemble to the point of removing the primary and secondary pulleys to expose the bearings.
This thread is in general how I'm tackling to job, its a not a step by step guide. I hope it works. Its a learning experience. I could have bought a used transmission, but I'm up for the challenge!
2015 Forester 126k Miles, the transmission started making noise when in gear. Putting it on 4 stands and running it there is a prominent noise from the transmission. I found some similar videos online pointing to the bearings. The CVT fluid was changed 1 time at 100k miles using Valvoline CVT fluid.
I took a shot buying a Koyo Bearing kit off Ebay for a TR580. I received what appear to be 4 genuine bearings identified below on the exploded view.
I'm halfway through the job. One of the bearings received(#1 in the diagram below) is a different part number than removed from the transmission. I'm waiting on the correct bearing to arrive. Ill snap some more pictures during re-assembly.
The (2) on this picture represents a bearing held in the side of the transmissions case. It supports the end of the shaft and isn't shown on this exploded view.
Transmission Removed. Blow the dust off, tape over any open connectors and holes, wash with soap and a brush, rinse and blow dry.
On the work bench. The general process is
1.) Remove the extension case, the transfer clutch and gear shafts. (they just lift out, there are shims you need to keep track of)
2.) Remove pan, strainer, shift linkage, valve linkage, oil baffle screws, from inside the pan
3.) Remove the sensors(we didn't and broke 1)
4.) Remove the transmission case (remove the bolts, separate the halves, and it lifts off)
We also removed the valve body, but after removal, I don't see why that is necessary.
Pulleys exposed.
The pulleys and chain guide supports are held in with 7 bolts(marked red and green). Removing them allows you to lift both shafts out of the case without removing the chain.
The bolts marked green have to be loosened part way, then lift the shafts out part way, then fully remove. (reinstall is the reverse)
Pulleys removed and on the bench. You need 2 people, wiggle them side to side while lifting and they will come out.
From here you can remove the retaining nuts with an impact and then use a puller to remove the bearings. One of the nuts is staked, use a small screw driver to un-stake it. Once installed, use a punch to stake it
The new bearings can be tapped into place using a punch on the inner race. They are not a very tight fit. Support the shaft from the opposite end, then GENTLY tap the bearing into place going side to side. It wont take much force.
The bearing pointed out(on the left) is the bad one. It was rough turning by hand, and has a scar on the outer race.
We did the top bearing before removing the pulleys.
3 bearings are on the shafts. The 4th is in a blind hole on the T Case. There is small hole on the opposite side to insert a punch and tap out the bearing.
Pic after removing it.
This thread is in general how I'm tackling to job, its a not a step by step guide. I hope it works. Its a learning experience. I could have bought a used transmission, but I'm up for the challenge!
2015 Forester 126k Miles, the transmission started making noise when in gear. Putting it on 4 stands and running it there is a prominent noise from the transmission. I found some similar videos online pointing to the bearings. The CVT fluid was changed 1 time at 100k miles using Valvoline CVT fluid.
I took a shot buying a Koyo Bearing kit off Ebay for a TR580. I received what appear to be 4 genuine bearings identified below on the exploded view.
I'm halfway through the job. One of the bearings received(#1 in the diagram below) is a different part number than removed from the transmission. I'm waiting on the correct bearing to arrive. Ill snap some more pictures during re-assembly.
The (2) on this picture represents a bearing held in the side of the transmissions case. It supports the end of the shaft and isn't shown on this exploded view.
Transmission Removed. Blow the dust off, tape over any open connectors and holes, wash with soap and a brush, rinse and blow dry.
On the work bench. The general process is
1.) Remove the extension case, the transfer clutch and gear shafts. (they just lift out, there are shims you need to keep track of)
2.) Remove pan, strainer, shift linkage, valve linkage, oil baffle screws, from inside the pan
3.) Remove the sensors(we didn't and broke 1)
4.) Remove the transmission case (remove the bolts, separate the halves, and it lifts off)
We also removed the valve body, but after removal, I don't see why that is necessary.
Pulleys exposed.
The pulleys and chain guide supports are held in with 7 bolts(marked red and green). Removing them allows you to lift both shafts out of the case without removing the chain.
The bolts marked green have to be loosened part way, then lift the shafts out part way, then fully remove. (reinstall is the reverse)
Pulleys removed and on the bench. You need 2 people, wiggle them side to side while lifting and they will come out.
From here you can remove the retaining nuts with an impact and then use a puller to remove the bearings. One of the nuts is staked, use a small screw driver to un-stake it. Once installed, use a punch to stake it
The new bearings can be tapped into place using a punch on the inner race. They are not a very tight fit. Support the shaft from the opposite end, then GENTLY tap the bearing into place going side to side. It wont take much force.
The bearing pointed out(on the left) is the bad one. It was rough turning by hand, and has a scar on the outer race.
We did the top bearing before removing the pulleys.
3 bearings are on the shafts. The 4th is in a blind hole on the T Case. There is small hole on the opposite side to insert a punch and tap out the bearing.
Pic after removing it.
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