supercharger pulley bearing install
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
supercharger pulley bearing install
so my bearings went out on my s/c pulley so i replaced them myself and since i didnt see a diy on here i thought i would throw one up...
pretty easy job and no specialty tools needed.
the offending bearing
get your new nachi bearing Nachi part no. 45BG07S5AIG-2DL
got mine from ebay for $70 http://www.ebay.com/itm/171143893370...84.m1439.l2649
then put the bearing in the freezer for a few hours ( i put mine in for 8hrs)
** ice cream and chocolate highly recommended- and no , im not gay lol
then bust out your 24mm wrench and strap wrench if you got one to hold the s/c clutch from spinning while you loosen the bolt holding the pulley on.... i didnt have a big enough strap wrench so i used 2 metal clamps on the clutch to keep it from spinning as there is a piece of metal that they will stop against when you are torquing on the pulley bolt
pulley is now off
then i had to get the old bearing out of the pulley... for this i made a little tool to pound out the old bearing
remove snap ring on front of pulley and now hammer it out like thor would.... mine came out without too much drama
then i cleaned up the inside of the pulley with some mineral spirits and then took it upstairs and put it in a 215f oven for about 45 minutes to slightly expand the pulley
then i put the pulley on the floor and quickly got the chilled bearing out of the freezer and dropped put it in the pulley and it slide right in like butter
all cooled off and set in just like from the factory
now reintsall the snap ring in the front of the pulley and just slide it back on the supercharger snout( place a little lube on it) , put red loctite on the bolt and torque down to 60ft/lbs
grab a beer and be happy that you saved around $1500 vs going to the dealer
pretty easy job and no specialty tools needed.
the offending bearing
get your new nachi bearing Nachi part no. 45BG07S5AIG-2DL
got mine from ebay for $70 http://www.ebay.com/itm/171143893370...84.m1439.l2649
then put the bearing in the freezer for a few hours ( i put mine in for 8hrs)
** ice cream and chocolate highly recommended- and no , im not gay lol
then bust out your 24mm wrench and strap wrench if you got one to hold the s/c clutch from spinning while you loosen the bolt holding the pulley on.... i didnt have a big enough strap wrench so i used 2 metal clamps on the clutch to keep it from spinning as there is a piece of metal that they will stop against when you are torquing on the pulley bolt
pulley is now off
then i had to get the old bearing out of the pulley... for this i made a little tool to pound out the old bearing
remove snap ring on front of pulley and now hammer it out like thor would.... mine came out without too much drama
then i cleaned up the inside of the pulley with some mineral spirits and then took it upstairs and put it in a 215f oven for about 45 minutes to slightly expand the pulley
then i put the pulley on the floor and quickly got the chilled bearing out of the freezer and dropped put it in the pulley and it slide right in like butter
all cooled off and set in just like from the factory
now reintsall the snap ring in the front of the pulley and just slide it back on the supercharger snout( place a little lube on it) , put red loctite on the bolt and torque down to 60ft/lbs
grab a beer and be happy that you saved around $1500 vs going to the dealer
Last edited by gaspam; Oct 13, 2013 at 11:39 PM.
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05 E55 AMG, E320 CDI, Turbo E46 M3,IS300 2JZGTE,VQ35 Turbo Maxima, Mercedes 300D
Very nice! Thanks for sharing ... missed one step though ...
Drive past the dealer showing them the finger and waving 15 $100 bills
I probably need to do this soon, my S/C pulley is starting to look like that
Great straightforward DIY
Drive past the dealer showing them the finger and waving 15 $100 bills
I probably need to do this soon, my S/C pulley is starting to look like that
Great straightforward DIY
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Thread Starter
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
no need to lift engine, dont even need to remove fan shroud if you use a wrench like me... if you wanted to use a ratchet or breaker bar then you would need to take fan shroud out to get the ratchet in there
i do workout lol
technically its a 24 since german car = metric, but a 15/16 will work too
haha true i forgot that step and if your bearings look like mine did then better change them sooner than later as you dont want your bearings seizing with the belt on still trying to turn it as could damage you s/c or your crank pulley
technically its a 24 since german car = metric, but a 15/16 will work too
and if your bearings look like mine did then better change them sooner than later as you dont want your bearings seizing with the belt on still trying to turn it as could damage you s/c or your crank pulley
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Thread Starter
MBWorld Fanatic!
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
also same to be said about getting the pulley back on the s/c shaft without grease/oil... if you dont lube the s/c shaft then the pulley wont slide back on
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'06 E55 K2
thanks and yeah it makes a huge difference... without doing that, there is no way you are getting the bearing in the pulley housing without a press.... with doing the pulley in oven and bearing in freezer the bearing just slides right in with no resistance an within 10 seconds the bearing has warmed up enough from the hot pulley that there is no way its coming out
also same to be said about getting the pulley back on the s/c shaft without grease/oil... if you dont lube the s/c shaft then the pulley wont slide back on
also same to be said about getting the pulley back on the s/c shaft without grease/oil... if you dont lube the s/c shaft then the pulley wont slide back on
Thread Starter
MBWorld Fanatic!
Joined: Feb 2011
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
on a side note- the car feels a lot stronger after putting in the new bearing... would not think there would be enough friction in the old bearing to cause such difference... that old bearing must of been really dragging as the new one feels like i added 50hp lol
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From: Georgia
E 63S Wagon Renntech, E55 Renntech, SL65, SL 55 030, ML, bunch of old ones--they come, they go...
Thanks for this....
question...is there a particular symptom that I should be on the lookout for? My car only has 32k miles, but I think I hear a bit of bearing noise. Thoughts?
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
well mine was easy as you see in the first pic the bearings were exposed, which they shouldnt be as they should have plastic piece that keeps dirt out and keeps the grease in as you can see on the new bearing.
another symptom is grease all over the underside of the plastic engine cover where the mercedes star is
also if is sounds chattery like a diesel truck in that area while running
you can also take the s/c belt of and spin the s/c pulley with your hand and if it sounds like skateboard wheels with sand in them then probably need replacing... but if you can spin it and no sounds or at least smooth sound then bearings are ok.
another symptom is grease all over the underside of the plastic engine cover where the mercedes star is
also if is sounds chattery like a diesel truck in that area while running
you can also take the s/c belt of and spin the s/c pulley with your hand and if it sounds like skateboard wheels with sand in them then probably need replacing... but if you can spin it and no sounds or at least smooth sound then bearings are ok.
Thread Starter
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
MBWorld Fanatic!
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From: Folsom, CA
2005 E55 AMG
that's usually the tougher part since you have to either move the fan shroud or lift the motor to get to that bolt
Last edited by Toadster; Oct 26, 2013 at 11:54 AM.
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From: Folsom, CA
2005 E55 AMG
Thread Starter
MBWorld Fanatic!
Joined: Feb 2011
Posts: 2,841
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
^^this... plus its only 60ft/lbs.... its not like a torque to yield bolt like the crank pulley where hitting the exact torque spec is uber important
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From: Caribbean/Florida/Colorado
E-ZGO 53hp., 1999 E 430 sport, 2004 E 55, 2008 Tahoe LTZ on 24"s
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From: A to the Z (the state)
'06 E55
What's the trick for making sure you don't get the fake Nachi knock-off bearings? Last I heard, them crafty Chinese were even copying the box art on their fake bearings.
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From: Folsom, CA
2005 E55 AMG
my tech said well, if the red (real) Nachi lasted 18k miles, expect about 9k out of the fake one
