Is there a SC belt slippage solution?
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2004 E55
Is there a SC belt slippage solution?
I know Finny worked on this but I haven’t seen any permanent solutions. I check my belt with the Vrus chalk test and sure enough my belt is slipping. The belt was replaced about 6000 miles ago and is in good shape, just slipping. The car has about 29,000 miles on it so I don't think the tensioner should be bad. Ideas?
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2015 S212
I've wondered about this slippage for sometime now as well. I always thought it was a sign of stretch by the belt or the tensioner. In your case, it sounds like the belt is "new". The tensioner is just that, so I can't see it being the issue, but who knows? I wonder if there is a specific TQ setting it is to move at?
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
i'm not so sure about that method to measure slippage unless the belt length/pulley circumference has a perfect whole number ratio (ie; 1:1, 2:1, 3:1). if not your chalk marks are rarely going to line up.
even if the ratio is perfect there's obviously going to be slippage since we can hear it every time the s/c clutch engages. i wouldn't be looking for a solution to a problem that you haven't proven...yet.
even if the ratio is perfect there's obviously going to be slippage since we can hear it every time the s/c clutch engages. i wouldn't be looking for a solution to a problem that you haven't proven...yet.
Last edited by chiromikey; May 29, 2007 at 10:14 PM.
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From: Australia
03 E55 AMG
Generally, the bigger the pulley the more potential to slip.
The truth will set you free...
A little bird told me that VRP will have a solution very soon for those with big ones...
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
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MBWorld Fanatic!
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
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From: Australia
03 E55 AMG
I'm lost.... Why Lighter? 
Bigger counter weight = better torsional protection...
Better off removing weight from the fixed pulley area and add it to the counter weight.
Victor may have one of these as well.
Bigger counter weight = better torsional protection...
Better off removing weight from the fixed pulley area and add it to the counter weight.
Victor may have one of these as well.
Out Of Control!!
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From: San Diego
2015 S212
Actually, I think I'm lost. I'm talking about the big cranshaft pulley. When I had all my fun with mine a while back, I just remembered it being HEAVY. I wondered if a weight reduction PLUS making it bigger wouldn't add. Let me know where I am off.
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From: So.Ca.
E55
i'm not so sure about that method to measure slippage unless the belt length/pulley circumference has a perfect whole number ratio (ie; 1:1, 2:1, 3:1). if not your chalk marks are rarely going to line up.
even if the ratio is perfect there's obviously going to be slippage since we can hear it every time the s/c clutch engages. i wouldn't be looking for a solution to a problem that you haven't proven...yet.
even if the ratio is perfect there's obviously going to be slippage since we can hear it every time the s/c clutch engages. i wouldn't be looking for a solution to a problem that you haven't proven...yet.
Anybody ever figure out the ratio here?
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06 EuroElites E55
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From: Mia
2005 E 55
So being that the ratio from bottom to top is constant I think this method is correct.
I guess we check by marking the belt like described and just let the car idle for a few minutes, shutting down and spinning or turning the engine until we see both lines line up, which I believe it will- perfect. Then going out and make a wide-open pass and see how far off the marks are now.
Or maybe I'm just.
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From: So.Ca.
E55
I'm just speculating but if we make a mark at the belt and crank pulley let say a blue line for example and the top part of the belt at the supercharger pulley white we should be able to get to that point in rotation again with out a problem and should be a good estimate for slip. If we had a sprocket on the lower and sprocket on the top pulley they would always line up with the method above because it can't slip.(Very similar to marks on a timing sprocket)
So being that the ratio from bottom to top is constant I think this method is correct.
I guess we check by marking the belt like described and just let the car idle for a few minutes, shutting down and spinning or turning the engine until we see both lines line up, which I believe it will- perfect. Then going out and make a wide-open pass and see how far off the marks are now.
Or maybe I'm just.
So being that the ratio from bottom to top is constant I think this method is correct.
I guess we check by marking the belt like described and just let the car idle for a few minutes, shutting down and spinning or turning the engine until we see both lines line up, which I believe it will- perfect. Then going out and make a wide-open pass and see how far off the marks are now.
Or maybe I'm just.
What if I put the motor to TDC and marked the SC/belt with a bright white mark.Then put a timing light on #1 plug wire and tried to strobe the marks?
So far ive marked the SC pulley and belt,then warapped the throttle afew good times but didnt drive it.After repeated times trying to check it,the closest it got was a 1/2in off on the marks?
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From: West
2005 E55 Wagon
I know Finny worked on this but I haven’t seen any permanent solutions. I check my belt with the Vrus chalk test and sure enough my belt is slipping. The belt was replaced about 6000 miles ago and is in good shape, just slipping. The car has about 29,000 miles on it so I don't think the tensioner should be bad. Ideas?
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From: So.Ca.
E55
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06 EuroElites E55
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06 EuroElites E55
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E55
His place will be on the direct path to Murrieta for you.Santa Ana I believe.
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From: Scarborough, Canada
2004 E55
JRocket, you can pull the pulgs out of the car and spin the motor over easily. But the problem is the belt still ain't gonna line up, you have to remember something when you have big pullies small pullies and such when you spin the motor over the belt will slip, maybe when all you put a belt on two pullies the same size it might not slip.
The belt slips on SLR's and it's not a big deal, Kleemann has a few cars that make over 700+hp and they don't have a problem, but when people don't actually understand what is going on and start talking alot of non-sense it causes much confusion over nothing, and these same people have nothing to show for with there own cars. There's only a few like Vadim that understand, make sure all pullies are clean use a new belt and if your really **** i learned this one from Stuggart Tech (too bad he ain't around no more) use some damn belt dressing done deal!
Anyways my car comes back next week and i got a video of my car with the new race exhaust.
You all seen the pics of the headers right?
The belt slips on SLR's and it's not a big deal, Kleemann has a few cars that make over 700+hp and they don't have a problem, but when people don't actually understand what is going on and start talking alot of non-sense it causes much confusion over nothing, and these same people have nothing to show for with there own cars. There's only a few like Vadim that understand, make sure all pullies are clean use a new belt and if your really **** i learned this one from Stuggart Tech (too bad he ain't around no more) use some damn belt dressing done deal!
Anyways my car comes back next week and i got a video of my car with the new race exhaust.
You all seen the pics of the headers right?
