moosejaw

If thats the case...
Why is this pulley still being sold and still on the market?

nizzle

x 2

MRAMG1

Two words: Cost and necessity

1. Cost: It would add additional machining to the crank during production and time.

2. Necessity: The stock pulley seems to work just fine, now when you add additional stress, that is NOT AMG's fault or concern.

e55amgrocket

Exactly. The production motor/crankshaft work fine for stock. I've talked to a company about having it splined but its not cheap plus the pulley would have to be splined exactly to match it. Not easy or cheap to do.

Koru_Kinshi

I'd like to get a Kleemann 168, but the cost is a bit much. ASP weld 168 might be the best since I still want a street car with light mods. Nothing real heavy.

All this talk about blown engines and bad pulleys is too much at this point.

togaclk55

Damn...sucks

stevebez

I'm surprised its that difficult to do ... think the main difficulty is getting the crank out and properly prepped - once thats done you just run a die over it and done. The female pulley is more diff to machine but I would have thought these days there would be many shops up to do this work. I guess the crank would need a rebalance with pulley attached as well.

Anyhow its non trivial sure, but honestly dont think its that tough a job. Mbe even just machine a hex shape to the snout ?

nizzle

I think it's only the RTR's and faulty installs that are failing. I don't think all the other pulleys, if installed correctly, have been failing

Cylinder Head

iTrader: (1)

There have been pulley failures from other companies and due to the stresses it puts on the crank, but nothing has ruined more motors in my history on this forum (5 years now?) than this RTR pulley.

nizzle

Any specific sizes or companies in particular?

GT-ER

Nearly all of them at one point or another, with the oem style pulleys ( like the older ASP's ) being the more reliable ones. But I agree with Cylinder head, this RTR pulley really has made a name for it's self by destroying pretty much every engine it encounters....yikes!!

nizzle

Besides the RTR, in what way are all the other pulleys failing when they are installed correctly? Should I be thinking about putting my stock pulley back on?

Cylinder Head

iTrader: (1)

Some wobble, some come apart, some fall right off. Some eat belts. There have been all kinds of issues.

Any time you mod a car you're taking a level of risk. When you put an aftermarket part on the end of your crankshaft, you're gambling with the backbone of your motor.

emoving

Do yourself a favor and follow your own words! Nothing like peace of mind. My Kleemann setup was awsome.

No kidding! Can't believe people keep them on!!!!!!! People buying from some no name pop up company always amazes me too! Wait till you have an issue and you call THAT number! "Were sorry, the number you have called has been disconnected"

Koru_Kinshi

Guess I'll have to see if I can work out a deal with Kleemann. :p Aren't their pullies in excess of $2K? If I do go down that route, I'll probably do Kleemann with an OE Tune. I remember the C230 pulley kits way back when were pretty reasonable. Less than a thousand.

320 dreamer

talk to patrick at pte first. his fluidamper pulleys are amazing. i have a 178 that he built for my slk32 and run it stacked with a c3 s/c pulley. 20+ psi boost and not a wiggle out of it. pure perfection

novae500

Wait for a used one that comes up once in awhile. I found a renntech 168mm and paid $500 after selling my OEM pulley later to the seller. I almost decided to go with 180 ASP/EC but figured cant go wrong with Renntech or Kleemann.

Koru_Kinshi

Never heard of PTE. Do they have a good track record and/or a website?

outrun

bummer deal. sucks that RTR's are causing such damage.

320 dreamer

https://mbworld.org/forums/members/25963-pte.html

his name is patrick. one of the best engine builders around

mrweelr

Does this RTR pulley issue only apply to the crank pulleys or also the S/C pulley that was recently being sold?

stevebez

S/C pulleys should be immune from failure in the manner like these crank pulleys have failed. Also, they should wear as OEM pulleys do.

Even if the S/C pulleys go bad its unlikely to cause major engine damage like a crank pulley.

If you thinking about changing the pulley on your car you better off - all round - changing the S/C pulley and leaving the OEM crank pulley in its place.

mrweelr

Yes, my plan is to replace the S/C pulley and replace the idler and tensioner pulleys with the ASP aluminum pieces and leave the stock crank pulley alone. Thanks for the insight.

Koru_Kinshi

I thought the S/C pulleys were causing problems too. Weren't they sticking to the clutch plate?

pearlpower

I'm willing to bet there are more failures attributed to this pulley that have yet been posted-likely from fanboys. Just seems to be the norm vs.the exception. Very sorry OP.