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MAGNUSON Superchargers and belt slippage in peticular magnuson c63

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MAGNUSON Superchargers and belt slippage in peticular magnuson c63

 
Old 11-26-2018, 08:06 PM
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2012 C63 AMG Coupe P31 Magnuson Super Charged
MAGNUSON Superchargers and belt slippage in peticular magnuson c63

Everytim i give it it a flog even just a little one the belt jumps off or shreds on gear change.

Its supposed to be bolt on not pay extra for sledgehammer kit so its 8 ribs and supposed to stop the issue. But 2.5k for a pulley setup is dolars.

Anyone have any insight?
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Old 11-26-2018, 08:13 PM
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you are on factory boost? i recall someone stating once you go 1 or 2 steps larger (whatever that psi is) you'll have possibility for belt slip.
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Old 11-26-2018, 09:58 PM
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All your pulleys properly aligned? Correct belt size?
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Old 11-26-2018, 10:53 PM
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2012 C63 AMG Coupe P31 Magnuson Super Charged
Yes factory boost, pulleys are good. It slips under full load and must sometimes jump. Itsmore first 2nd gear high revs like a drag race.

Never had the problem before magnuson.

Im sick of belts going it is supposed to be oem like kit and it is awesome dont get me wrong drivable, better than stock, power, cant fault it (touch woodf) but im slipping the belt you can see wear on the ribs of slippage too.

I need an 8 rib or the sledgehammer kit. No one else seems to have had a problem though.

I ight email magnuson
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Old 11-27-2018, 05:35 AM
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Some initial thoughts for checking:
  • Have you replaced the tensioner? If not, do so. If you have, is it a genuine (Gates) unit ... there are cheaper copies that flex badly.
  • Have you checked the engine coolant pump bearings are still good? There will sometimes (usually) be evidence of coolant leaking, but I have experienced a GM pump that had very bad bearing but still sealed.
  • Have you checked/replaced the idler pulleys? They are renown for premature failure and have caused belts to escape even without supercharging.
  • You indicate the "pulleys are good". How did you check. The best (nearly only) way is with a laser alignment tool.
I know of one other install that had issues - it was cured by replacing the tensioner & idler pulleys.

Also... Different belt brands can produce different results. The Magnuson-branded belt supplied with the kit is a purpose-built belt from Gates - it is a grade between "FleetRunner" & "Carbon Race".

Last edited by Southways; 11-27-2018 at 05:43 AM.
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Old 11-27-2018, 06:27 AM
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2012 C63 AMG Coupe P31 Magnuson Super Charged
Funny you say that it sheared my water pumo shaft off.

I might do to a different shop. Get them to check alignment and why. These guys are seeming a bit hopeless if there fix is dont get up it ful l throttle and wait for a sledgehammer kit. Thats not correct way to fix it. Really ****ting me now.

Thanks for your response.
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Old 11-27-2018, 06:29 AM
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Belts is just plain rubber not the green one because it wont fit spprently unless tske off the bottom idler next to crack which isnt correct either.

Wtf it cant be that hard. I was a mech we did correct work why cant someone else. They are good at the cars they do maybe just not mercs.
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Old 11-27-2018, 06:35 AM
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If the engine is bouncing off the limiter, something will have to give. Have you ever seen a slow-motion video of what happens to the drive belt on ANY car when it hits the limiter - let alone what happens with the inertia of a supercharger! It is as scary as hell - find a video & it will cure your rev-limiter addiction. I would always rather a belt slip than break some hard-part.
Of course, the best way is a SledgeHammer kit ... I have them ready to ship.
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Old 11-27-2018, 06:37 AM
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Where are you based (geographically).
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Old 11-27-2018, 12:19 PM
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Dont get me wrong i would highly recommend tthe kit to anyone but Yeah i guess i just drive like a maniac. But it has happened before. I can imagine what the belt is doing so in my head the mechanic says **** happens but the consumer says its supposed to be bolt on and go.

Im aus. How much will you sting me on a sledge hammer? And where are you? I dont wamt to up the boost yet or prob never i ususally drive a lot and have it tuned to a streetable and sweet spot and it still hauls ***.
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Old 11-27-2018, 04:53 PM
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Ken is in Melbourne go see the boys at VCM they will sort it

Just upgrade boost is your friend
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Old 11-29-2018, 06:29 AM
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Originally Posted by Southways View Post
Where are you based (geographically).

How much for 8 rib kit shipped to aus mate?
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Old 11-29-2018, 06:30 AM
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Originally Posted by mr747 View Post
Ken is in Melbourne go see the boys at VCM they will sort it

Just upgrade boost is your friend
yeah spoke with .ken via email. Might just get it. I actually really need it the way i drive and boost is an option but prob need bigger injectors then ill snap and break drive line parts mine is plenty quick but i want bit more haha
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Old 11-29-2018, 10:26 PM
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Shredding of belt is due to pulley miss alignment
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Old 03-01-2019, 08:02 AM
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I went thru 4 belts until I found that one of my UPD pulleys wasn't lined up properly. Going to re-align and install a new belt and hopefully my blower will run without problems. I upgraded the Gates belt to a green heavy duty belt.
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