2 C4 IMS bearing
#1
Track Day
Thread Starter
2 C4 IMS bearing
Hello,
Had asked a garage to have the IMS bearing upgraded to an oil-fed one. They say that the factory bearing is bigger than the tunnel, and the pull tool is not able to drag it out. Apparently, the best option is to have the engine out. Which, I'm opposed to. Here's a pic. This engine has a bigger bearing (~62mm), are there special tools need to replace the IMS?
Had asked a garage to have the IMS bearing upgraded to an oil-fed one. They say that the factory bearing is bigger than the tunnel, and the pull tool is not able to drag it out. Apparently, the best option is to have the engine out. Which, I'm opposed to. Here's a pic. This engine has a bigger bearing (~62mm), are there special tools need to replace the IMS?
#2
Racer
If there is no apparent problem with the bearing just put everything back and keep it. As long as you don't mistreat the engine it will not fail.
EDIT: The case needs to be split to get that one out.
EDIT: The case needs to be split to get that one out.
#4
Racer
Removing the seal is controversial. I would not do it because it opens the bearing to debris, search this forum and check what people find in their oil filters. That can also get in the bearing if you remove the seal. If it turns smooth, I would do nothing, just put it back.
#5
Rennlist Member
Removing the seal is controversial. I would not do it because it opens the bearing to debris, search this forum and check what people find in their oil filters. That can also get in the bearing if you remove the seal. If it turns smooth, I would do nothing, just put it back.
Full disclosure: I'm running an open bearing (no seals on either side) in my 997.
#6
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Hello,
Had asked a garage to have the IMS bearing upgraded to an oil-fed one. They say that the factory bearing is bigger than the tunnel, and the pull tool is not able to drag it out. Apparently, the best option is to have the engine out. Which, I'm opposed to. Here's a pic. This engine has a bigger bearing (~62mm), are there special tools need to replace the IMS?
Had asked a garage to have the IMS bearing upgraded to an oil-fed one. They say that the factory bearing is bigger than the tunnel, and the pull tool is not able to drag it out. Apparently, the best option is to have the engine out. Which, I'm opposed to. Here's a pic. This engine has a bigger bearing (~62mm), are there special tools need to replace the IMS?
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MadIrish (06-06-2020)
#7
Fair enough. I look at the sources and it seems the folks I trust are recommending removal. Also, the vast majority of the replacement bearings are open. Change your oil on schedule and you should be good.
Full disclosure: I'm running an open bearing (no seals on either side) in my 997.
Full disclosure: I'm running an open bearing (no seals on either side) in my 997.
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#8
Drifting
I hope I'm reading it wrong, but if they used a puller on the bearing in the process of discovering it won't come out, I'd be very concerned about damage to the bearing.
#9
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#11
Just a car guy
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I'm surprised the shop you are dealing with doesn't know about the non-serviceable larger IMS bearing. In order to replace those you have to disassemble the entire engine and split the engine cases. Also, the larger bearing will last the life of the car with proper oil/filter changes. This whole scenario does not speak well for the shop you are dealing with. In other words, they should already know this.
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TexSquirrel (06-06-2020)
#13
Racer
Two curious questions come to mind.
What model and engine is this? (No 996 had this bearing originally)
And, what made you think you need to have an oil-fed IMSB? Any signs of IMSB going bad?
What model and engine is this? (No 996 had this bearing originally)
And, what made you think you need to have an oil-fed IMSB? Any signs of IMSB going bad?
#14
Rennlist Member
This PM and turned into a Big Problem,,(Cluster F**K)..
#15
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