Strange Noise after LFW conversion / clutch service
#1
Instructor
Thread Starter
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Hi guys,
I took the engine and gearbox out of my 993 in order to convert to LWF (of course with new clutch, release bearing, etc.).
Now, after assembling, there is a very annoying noise when the clutch is pressed (see video). I then removed the engine, took of the transmission and checked the release fork and shaft. The needle bearings and bushings are all perfect.
I have no idea where the noise is coming from. I am grateful for every idea.
thanks!
I took the engine and gearbox out of my 993 in order to convert to LWF (of course with new clutch, release bearing, etc.).
Now, after assembling, there is a very annoying noise when the clutch is pressed (see video). I then removed the engine, took of the transmission and checked the release fork and shaft. The needle bearings and bushings are all perfect.
I have no idea where the noise is coming from. I am grateful for every idea.
thanks!
#2
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Maybe the clutch slave cylinder?
#3
Instructor
Thread Starter
#4
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I'm sure someone has a better idea than mine, which was winging it and buying a new one. I had an annoying grawk/click/notch that was hard to isolate. Spent $80 on a new slave and it's been good for the past couple hundred miles.
#6
RL Community Team
Rennlist Member
Rennlist Member
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Sounds like an unlubricated shaft/plunger in whatever it rides in, pilot bearing/slave housing. By removing the slave you will probably figure out what kills this dog as it sounds like it is really suffering!
Andy
Andy
#7
Instructor
Thread Starter
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I tried to isolate the problem by playing around with the slave cylinder off the gearbox. Turns out this was not the best idae since the clutch pedal fell to the floor almost immediately. Pretty sure I will have some fun bleeding the system when the new slave arrives
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#8
Instructor
Thread Starter
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Got a tip on a German Forum which put me on the right path. The sound came from the friction between relase bearing and the guide tube. A test fit without the guide tube eliminated the noise completely.
Now I put everything back together as is and am hoping the relasie bearing will center itself once the engine is running.
Now I put everything back together as is and am hoping the relasie bearing will center itself once the engine is running.
#9
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Digging this one up from a couple years back but I have the exact same noise after doing a LWF conversion. I was methodical durng install.
Did you resolve this issue? If so, what was done differently?
Did you resolve this issue? If so, what was done differently?
#10
Race Car
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I would use Olista 3EP on the guide tube.
See thread here for lubricant suggestions from JasonAndreas:
https://rennlist.com/forums/993-foru...ml#post4912793
See thread here for lubricant suggestions from JasonAndreas:
https://rennlist.com/forums/993-foru...ml#post4912793
Last edited by 95_993; 09-06-2021 at 12:10 AM.
#11
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Yes, used olista 3EP on the guide tube. Was pretty obsessive with lubrication/torque values/etc in hopes to do it once. Hoping I don't have the drop the engine and it centers itself as OP suggested it might.
I would use Olista 3EP on the guide tube.
See thread here for lubricant suggestions from JasonAndreas:
https://rennlist.com/forums/993-foru...ml#post4912793
See thread here for lubricant suggestions from JasonAndreas:
https://rennlist.com/forums/993-foru...ml#post4912793
#13
Race Car
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Originally Posted by Seamless
Yes, used olista 3EP on the guide tube. Was pretty obsessive with lubrication/torque values/etc in hopes to do it once. Hoping I don't have the drop the engine and it centers itself as OP suggested it might.
#15