Problem with acceleration

[Lil bastard]

Originally Posted by Sputter

I suppose the RMS should be checked and have the updated one installed since the tranny is out. You don't want to re-spend the cash later when the RMS starts to leak.

Two schools of thought here; One - replace it while everything is disassembled hoping to save some $.

Second - if the seal is not leaking, leave it alone.

Not all RMS leak prematurely, maybe 20-30%. It's a specialized 'skill' to properly install this seal. If not done properly, the 2nd seal may begin to leak soon after requiring additional expense, not saving it.

[Sputter]

Agreed.

Originally Posted by Lil bastard

Two schools of thought here; One - replace it while everything is disassembled hoping to save some $.

Second - if the seal is not leaking, leave it alone.

Not all RMS leak prematurely, maybe 20-30%. It's a specialized 'skill' to properly install this seal. If not done properly, the 2nd seal may begin to leak soon after requiring additional expense, not saving it.

[Cloudsurfer]

It all depends how far you are on the clutch's last legs. If you have worn through the friction material, you will be scraping the rivets that hold the friction material to the clutch disc across the flywheel, and if this is the case, your flywheel is toast.

With all this apart, I would swap the flywheel out, and in doing so going to a lightweight unit. I suppose if you're lucky and the original flywheel looks great, then just clean it up and take your chances, but I'm not sure I'd want to take the risk.

As to the RMS, I'm inclined to think it's better to replace it while you're looking at it- just make sure whoever installs the new seal does it correctly.

Originally Posted by bmwm750

It all depends how far you are on the clutch's last legs. If you have worn through the friction material, you will be scraping the rivets that hold the friction material to the clutch disc across the flywheel, and if this is the case, your flywheel is toast.

With all this apart, I would swap the flywheel out, and in doing so going to a lightweight unit. I suppose if you're lucky and the original flywheel looks great, then just clean it up and take your chances, but I'm not sure I'd want to take the risk.

As to the RMS, I'm inclined to think it's better to replace it while you're looking at it- just make sure whoever installs the new seal does it correctly.

BMW, does the lightweight flywheel you have make more noise as all articles seem to suggest? If so is it acceptable? Can you tell us all how it changed the feel of your car?

Thanks

[Kirk]

I know you can change the RMS with the engine in the car, but can you also change the IMS to go to the new Raby unit? I'm just wondering if this isn't something else that should be upgraded while doing the clutch IF it can be done with the engine in the car. Anyone know the cost of the Raby/Flat 6 Innovations IMS?

Kirk

[pbanders]

If you're doing the work yourself and you're not that experienced at evaluating what needs changing, have someone experienced evaluate your parts. Is this the first clutch in your '98? If you're past 100K, and you've been driving with a slipping clutch for a while, I wouldn't be surprised if your flywheel shows bluing and needs replacement.