Replaced SC Clutch bearing last night ~ pics/video
Super Member
Joined: Jul 2006
Posts: 925
Likes: 2
From: Maine
Not an AMG :(
Well, it looks like the Houston Bearing site is down (might just be the 1/1 renewal blues), and I'm encountering the dreaded supercharger clutch bearing failure. Although I've read that normally this quiets down when the S/C engages, here in the cold MN afternoons it sounds like a puppy being kicked when the supercharger engages at low RPMs. It's too cold to wrench around here, so I'm taking it to the local indie tomorrow AM to confirm.
To get to the point, it looks like 32BG05S1-2DST is the Nachi substitute for the DAC32550023, which is again a substitute for the OEM NSK 32BD45. I was able to find it at bearingsdirect.com, and wanted to share the wealth. If nothing else, seems to be another source. Once I verify tomorrow I'll let you know how ordering / installation / lifespan goes.
To get to the point, it looks like 32BG05S1-2DST is the Nachi substitute for the DAC32550023, which is again a substitute for the OEM NSK 32BD45. I was able to find it at bearingsdirect.com, and wanted to share the wealth. If nothing else, seems to be another source. Once I verify tomorrow I'll let you know how ordering / installation / lifespan goes.
Seriously though - thanks for the information. Do you by any chance know what the rpm limit is for this bearing?
Any chance you can ask them when you order?
[Edit] Just saw this guy's thread - he's selling the DAC32550023 bearing.
Last edited by boohooramblers; Jan 7, 2009 at 11:17 PM.
Newbie
Joined: Nov 2008
Posts: 12
Likes: 0
From: Minneapolis
02 C32 AMG
'PeterTheFish' !! - awesome name! Do you drink a lot?
Seriously though - thanks for the information. Do you by any chance know what the rpm limit is for this bearing?
Any chance you can ask them when you order?
[Edit] Just saw this guy's thread - he's selling the DAC32550023 bearing.
Seriously though - thanks for the information. Do you by any chance know what the rpm limit is for this bearing?
Any chance you can ask them when you order?
[Edit] Just saw this guy's thread - he's selling the DAC32550023 bearing.
I'm actually hoping I can order via phone w/ Houston Bearing. If not, I will definately check the speed rating on these. But I think that in the absence of an OEM bearing, I'm going to have to be content with these being a wearable part.
I did see the other thread, but don't run K&N's so it's about $100 of stuff I don't need...
Newbie
Joined: Nov 2008
Posts: 12
Likes: 0
From: Minneapolis
02 C32 AMG
Update
So I confirmed this morning that the S/C bearing is indeed failing, and taking the two nearby idlers with it. Oddly, the S/C bearing is relatively quiet, but it has a pretty substantial amount of play in it.
I did call Houston Bearing and placed an order for a couple of the DACs to be overnighted - had to send in credit card details via email (
) which I'm not a big fan of, but it is what it is. Hopefully I'll get this and the two pulleys taken care of early next week, in time for my cross country sprint to the East coast - weary of running 14 hours at a time on a dying bearing...
I did call Houston Bearing and placed an order for a couple of the DACs to be overnighted - had to send in credit card details via email (
) which I'm not a big fan of, but it is what it is. Hopefully I'll get this and the two pulleys taken care of early next week, in time for my cross country sprint to the East coast - weary of running 14 hours at a time on a dying bearing...
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Well I finally got around to replacing my noisy bearing in the SC Clutch. Thanks to TopGun32's post, I obtained the proper bearing needed. Last night I decided to take everything apart and tackle the job. It was very easy, and only took about an hour. Plus I got a chance to use my new shop press for the first time. I took some pictures, along with video of the before and after noise. You wont believe how noisy it was, the bearing was very bad when I took it out. The video is only 2mb, so its a quick download. Thanks to those who gave me advice on getting the job done.
Before & After Video
Before & After Video
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
I just fixed the s/c bearing on my AMG - easy and fun repair, my first time using a press. On that note - I now have a 12-ton press 
~9MB
http://www.bifpowell.com/videos/sc_bearing.wmv
~9MB
http://www.bifpowell.com/videos/sc_bearing.wmv
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
So I confirmed this morning that the S/C bearing is indeed failing, and taking the two nearby idlers with it. Oddly, the S/C bearing is relatively quiet, but it has a pretty substantial amount of play in it.
I did call Houston Bearing and placed an order for a couple of the DACs to be overnighted - had to send in credit card details via email () which I'm not a big fan of, but it is what it is. Hopefully I'll get this and the two pulleys taken care of early next week, in time for my cross country sprint to the East coast - weary of running 14 hours at a time on a dying bearing...
I did call Houston Bearing and placed an order for a couple of the DACs to be overnighted - had to send in credit card details via email (
) which I'm not a big fan of, but it is what it is. Hopefully I'll get this and the two pulleys taken care of early next week, in time for my cross country sprint to the East coast - weary of running 14 hours at a time on a dying bearing...I have a new SC pulley since late 2008 so no need to replace but good to see its available and easy to change.
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MBWorld Fanatic!
Joined: Oct 2006
Posts: 4,856
Likes: 4
02 C32 AMG
are there any tell-tale signs or certain sounds I should be looking for or listening for to determine if the bearing is going bad?
also, where exactly does this bearing go? it isnt actually on the s/c pulley is it?
also, where exactly does this bearing go? it isnt actually on the s/c pulley is it?
MBworld Guru
Joined: Apr 2002
Posts: 22,058
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From: Diamond Bar, CA
W206 PHEV AMG
http://www.youtube.com/watch?v=LAcmJ...eature=channel
the rest, just scroll up.
Member
Joined: Nov 2006
Posts: 229
Likes: 0
From: Brisbane, Australia
C32
I replaced the SC bearing yesterday but havent started the car yet as I dropped the guide pulley and broke the plastic ..... doh. getting a new one tomorrow.
So is it ok if the SC clutch and the clutch plate touch a tiny little bit when I spin them, and I mean only a tiny little bit .... will they find the correct position after it is engaged a few times ?
So is it ok if the SC clutch and the clutch plate touch a tiny little bit when I spin them, and I mean only a tiny little bit .... will they find the correct position after it is engaged a few times ?
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
there should be some shims that were there keeping a very thin distance so they dont touch. they should not touch, you might have misplaced one when you took it off.
Member
Joined: Nov 2006
Posts: 229
Likes: 0
From: Brisbane, Australia
C32
Hmmmmm, I left all the shims on the shaft. The clutch definatly spins freely, it is just the tiniest touch .... should I try and get another shim, or start it and it will readjust itself by like a tenth of a millimeter when it is engaged ?
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
code3 directions state there should at least be a .20-.30mm distance.
http://www.code3performance.com/C32/...y_install.html
I would try to find another shim.
http://www.code3performance.com/C32/...y_install.html
I would try to find another shim.
Newbie
Joined: Mar 2010
Posts: 4
Likes: 0
From: Tampa Bay Area - FL
2002 SLK32
I have a 2002 SLK32, just checking but this is the same powertrain (thus same bearing part number) as the C32's you are discussing?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
Super Member
Joined: Apr 2009
Posts: 852
Likes: 4
From: DE
2005 E55
I have a 2002 SLK32, just checking but this is the same powertrain (thus same bearing part number) as the C32's you are discussing?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
It's 50 bucks and he had it to my door in two days. The machine shop down the road from me pressed the old one out and the new one in for $10.
Super Member
Joined: Aug 2006
Posts: 510
Likes: 3
From: san jose, ca
2002 C32 1987 190E 2.3 334K miles and going
I have a 2002 SLK32, just checking but this is the same powertrain (thus same bearing part number) as the C32's you are discussing?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
I am 99.9% sure it is the clutch bearing. Anything above 1800 RPM (in drive) and the supercharger is quiet and sounds great. In park or reverse, if I rev it up the noise remains since the clutch on the SC doesn't engage in Park or Reverse.
I am hoping to make this about a $20 bearing and find a shop to press the bearing out for another $50.00 versus pay a repairshop $1150 for the replacement SC Clutch Pulley!! I have seen Code3 makes a performance pulley for $600 and someone claimed swapping it out was 15 minutes?!? Is it that easy to take this pulley/clutch assembly off?
The Nachi and the Houston Bearing are about $27.00 total. I'd get the NSK (Japan and not China made) for $50.00 total.
You will need help when turning the Belt tensioner counterclockwise to loosen the belt. Someone to turn the belt tensioner as you slip the belt off and vice versa. You will need the proper tools, torx wrenches.
Plan on replacing this bearing every 40K miles if you're lucky.
I got my trusted mechanic 'Jose' to remove and press fit the bearing for $5.00.
This DIY should not take more than 45 minutes unless you end up breaking stuff in the process.
Newbie
Joined: Mar 2010
Posts: 4
Likes: 0
From: Tampa Bay Area - FL
2002 SLK32
So you're saying you have a stock pulley and think it's the bearing. If you stop the clutch (not the pulley) from spinning the pulley bearing will keep turning and if it still makes noise, that's the problem.
The Nachi and the Houston Bearing are about $27.00 total. I'd get the NSK (Japan and not China made) for $50.00 total.
You will need help when turning the Belt tensioner counterclockwise to loosen the belt. Someone to turn the belt tensioner as you slip the belt off and vice versa. You will need the proper tools, torx wrenches.
Plan on replacing this bearing every 40K miles if you're lucky.
I got my trusted mechanic 'Jose' to remove and press fit the bearing for $5.00.
This DIY should not take more than 45 minutes unless you end up breaking stuff in the process.
The Nachi and the Houston Bearing are about $27.00 total. I'd get the NSK (Japan and not China made) for $50.00 total.
You will need help when turning the Belt tensioner counterclockwise to loosen the belt. Someone to turn the belt tensioner as you slip the belt off and vice versa. You will need the proper tools, torx wrenches.
Plan on replacing this bearing every 40K miles if you're lucky.
I got my trusted mechanic 'Jose' to remove and press fit the bearing for $5.00.
This DIY should not take more than 45 minutes unless you end up breaking stuff in the process.
So you do recommend the $50.00 NSK (OEM) over the 32BG05S1-2DST Nachi from BearingsDirect.com? I do have Male Torx's for my ratchet, but I need to get some torx sockets (but I need to have those anyway if I plan to work on German cars).
Can I ask another stupid question. Where is the belt tensioner? I wonder if it is the same location on the SLK32 as the C32. I thought I would loosen the torx on the alternator to create slack in the belt. I am assuming once I have some slack in the belt, I hold the clutch housing next to the supercharger from spinning and loosen the standard hex-head bolt on the center of the pulley and then I can slide the whole clutch/pulley assembly straight forward. I can see a bearing retaining ring on the OD of the bearing (pulley) and the press fit that I will need the shop to do is on the id that bolts to the SC. Right?
Thanks.
Super Member
Joined: Apr 2009
Posts: 852
Likes: 4
From: DE
2005 E55
Thanks 60n5pt1;
So you do recommend the $50.00 NSK (OEM) over the 32BG05S1-2DST Nachi from BearingsDirect.com? I do have Male Torx's for my ratchet, but I need to get some torx sockets (but I need to have those anyway if I plan to work on German cars).
Can I ask another stupid question. Where is the belt tensioner? I wonder if it is the same location on the SLK32 as the C32. I thought I would loosen the torx on the alternator to create slack in the belt. I am assuming once I have some slack in the belt, I hold the clutch housing next to the supercharger from spinning and loosen the standard hex-head bolt on the center of the pulley and then I can slide the whole clutch/pulley assembly straight forward. I can see a bearing retaining ring on the OD of the bearing (pulley) and the press fit that I will need the shop to do is on the id that bolts to the SC. Right?
Thanks.
So you do recommend the $50.00 NSK (OEM) over the 32BG05S1-2DST Nachi from BearingsDirect.com? I do have Male Torx's for my ratchet, but I need to get some torx sockets (but I need to have those anyway if I plan to work on German cars).
Can I ask another stupid question. Where is the belt tensioner? I wonder if it is the same location on the SLK32 as the C32. I thought I would loosen the torx on the alternator to create slack in the belt. I am assuming once I have some slack in the belt, I hold the clutch housing next to the supercharger from spinning and loosen the standard hex-head bolt on the center of the pulley and then I can slide the whole clutch/pulley assembly straight forward. I can see a bearing retaining ring on the OD of the bearing (pulley) and the press fit that I will need the shop to do is on the id that bolts to the SC. Right?
Thanks.
Newbie
Joined: Mar 2010
Posts: 4
Likes: 0
From: Tampa Bay Area - FL
2002 SLK32
Thanks... Yes, I found a video that shows which pulley is the tensioner at:
https://mbworld.org/forums/c32-amg-c...er-pulley.html
My tensioner is a torx not a hex, but I will have someone around if I need a third hand. Guess I might need to put this off till next weekend if I am going to order the $50 one from the ebay seller in Taiwan, I was going to get the Nachi one from a local guy for $28 plus tax. Just got back from Sears with my set of "external" torx sockets since previously I only had the standard torx heads for my rachets from doing a brake job on it a few months ago.
https://mbworld.org/forums/c32-amg-c...er-pulley.html
My tensioner is a torx not a hex, but I will have someone around if I need a third hand. Guess I might need to put this off till next weekend if I am going to order the $50 one from the ebay seller in Taiwan, I was going to get the Nachi one from a local guy for $28 plus tax. Just got back from Sears with my set of "external" torx sockets since previously I only had the standard torx heads for my rachets from doing a brake job on it a few months ago.
Super Member
Joined: Apr 2009
Posts: 852
Likes: 4
From: DE
2005 E55
Thanks... Yes, I found a video that shows which pulley is the tensioner at:
https://mbworld.org/forums/c32-amg-c...er-pulley.html
My tensioner is a torx not a hex, but I will have someone around if I need a third hand. Guess I might need to put this off till next weekend if I am going to order the $50 one from the ebay seller in Taiwan, I was going to get the Nachi one from a local guy for $28 plus tax. Just got back from Sears with my set of "external" torx sockets since previously I only had the standard torx heads for my rachets from doing a brake job on it a few months ago.
https://mbworld.org/forums/c32-amg-c...er-pulley.html
My tensioner is a torx not a hex, but I will have someone around if I need a third hand. Guess I might need to put this off till next weekend if I am going to order the $50 one from the ebay seller in Taiwan, I was going to get the Nachi one from a local guy for $28 plus tax. Just got back from Sears with my set of "external" torx sockets since previously I only had the standard torx heads for my rachets from doing a brake job on it a few months ago.
Member
Joined: Mar 2004
Posts: 230
Likes: 0
From: Grapevine, Texas
2004 Capri Blue C32
Hey guys,
I removed my SC pulley and noticed something that doesn't look right. In the picture below, there seems to be some plastic rings missing. Does anyone know where I can get these? I'm sure I've driven the car without them for a while, so what damage could them missing potentially cause?
Thanks!
I removed my SC pulley and noticed something that doesn't look right. In the picture below, there seems to be some plastic rings missing. Does anyone know where I can get these? I'm sure I've driven the car without them for a while, so what damage could them missing potentially cause?
Thanks!
Newbie
Joined: Mar 2010
Posts: 4
Likes: 0
From: Tampa Bay Area - FL
2002 SLK32
Just a quick thanks to all that helped answer my questions. I got the bearing from BearingsDirect.com, the external Torx sockets from Sears and found a local automotive machine shop open on Saturday that pressed the bearing out and put the new one in for $12.00. Just completed this $1400 (replacing whole bearing assembly with labor) to $500 (to get a mechanic to pull the pulley and replace the bearing like I just did) by myself for $58.00 including the torx sockets I now have. You guys just helped me save $500 to $1300!!!! Great website! The only problem I had was getting the pulley off without a wheel puller... think I will use my savings and go down to Harbor Freight and buy me a wheel puller for the next time I have a use for one.
She's purring like a kitten now at idle. Thanks again!
She's purring like a kitten now at idle. Thanks again!
Super Member
Joined: Apr 2009
Posts: 852
Likes: 4
From: DE
2005 E55
http://cgi.ebay.com/ebaymotors/2-Pc-...#ht_801wt_1165
Member
Joined: Dec 2006
Posts: 118
Likes: 2
From: Los Angeles, CA
Replacing my SC bearing tonight. It is on there pretty good. Should this thing slide off or can I wedge it off by sticking a screw driver in between the pulley and the clutch? Is there a trick to getting it off? Yes, I have the bolt, clip ring and washer off. Thx.
