Weee55

Hey everyone. I just picked up my 06 E55 two days ago. I love everything about the car and I'm even happier to be joining such an awesome family of E55 enthusiasts. Thank you for everyone that offered me information and advice in my previous thread. Big ups especially to Shardul, and Masonh66 who PM'ed throughout the whole process.

Anyways. This morning I noticed my crank pulley moving around a bit, so I recorded it. It is a Eurocharged 180mm pulley. It seems to move around more during idle. When there is any throttle applied, it stays nice and straight. There is no leaking around the crank seal, but I don't want to take any chances of messing up the motor. Can someone please tell me that im just being overly cautious? After reading all the bad pulley stories im starting to feel like

93RX7LSX

All aftermarket crank pulleys have some sort of movement since they don't have any dampening. Seems normal to me.

pearlpower

Have owned 3 aftermarket pulleys. First-ASP -172mm I believe, had pretty bad wobble. Went with a 180mm EC pulley, true as can be (see video link), and now an ASP 200mm. Again, true as an arrow.

You Tube

shardul

iTrader: (1)

whats the squeaking noise when you give it some throttle

pearlpower

Odd, sounds like a bearing......

Roverron

Might be a little rough idle making it look like wobble

xpl0sive

my car started making the squeaking noise after my 175mm pulley was installed. I know I have a new tensioner on there, it was replaced at the dealer about two months ago. what could cause the squeaking? it increases with the RPM. when I have time I will remove the s/c belt and isolate which belt the squeaking is coming from

Weee55

pearl- The pulley movement is less apparent when I try to capture it on video. Yours seems to sit perfectly still when its in motion. Do you think its something I should be worried about?

The noise sounds like its coming from one of the pulleys on the right side of the motor. I'm not too sure what it is but, right now im more concerned about pulley in question.

BenJ

Mine made a similar squeak, turned out to be the double pulley on the passenger side of the engine towards the top. $400 pulley.

xpl0sive

i guess it'll be going back to the dealer for another pulley replacement. just gotta wait for the charcoal canister code to come back so they replace that as well in one claim.

Roverron

instead of surging the throttle try to hold the throttle at a set RPM and see if the pulley stays true.

Weee55

The pulley stays nice and straight when I accelerate and hold the throttle at set RPMs. I was tapping on the throttle to try and make the pulley shake.

PTE

This one looks pretty good . No belt movement . T/S motorsport nailed it. If the motor is rocking on the motor mounts , from a rough idle it will fool the eye. I had the same issue . My rough idle is from the cams causing the motor movement. The belt and tensioner were dead smooth. relax go have some fun. But fix the squeak first
Cheers _PTEngineering

Weee55

^Thanks I really needed that.

cahiil55k

I thought I had major crank pulley wobble once and it turned out to be an illusion created by a bad tensioner pulley assembly and idler pulley. Have those two things checked soon. It's easier to notice if the tensioner pulley assembly is going bad because it can tick and rattle loudly. With my idler pulley, I had no idea it had gone south too until we took it off and it just about literally fell apart. I bought the ASP idler pulley and an OEM tensioner assembly and had them both replaced in one visit.

MBH motorsports

you're fine. Like others said, sound like you have a bearing going, most likely on your tension pulley.

93RX7LSX

A great way to tell if something is wrong is to inspect your belt from time to time.

Weee55

Thanks everyone. i guess i freaked myself out after reading all the pulley failure stories. Now its time to have some fun

How much did the idler and tensioner assembly cost you?

cahiil55k

Idler pulley shipped direct from ASP....... $134.00
Tensioner bought through indy shop...... $250.00
Installation of both by indy shop........... $100.00