Miniac

Does anyone know the torque spec for the double idler pulley?
I've searched but didn't have any luck.

RikTT

With the fan shroud in place, I don't see how you're gonna get a regular ratchet head on there with a torx socket yet alone a tq wrench with a bigger head. Get some blue locktite on the bolt tighten it up.

I just changed mine today and remembered how much leverage was needed to crack the bolt loose.

sthoms

Once the bolt is hand tightened, I thought there was enough room. Will find out for sure on Wednesday when my 5-piece pulley set arrives. Thanks Shardul! :-)

There should be a torque specification and that could give him/I something to shoot for. 14Nm and 40Nm are "targetable" by hand a lot differently.

Miniac

Looks like plenty of room to me I'll swap them out this afternoon.

Miniac

RikTT sorry to have doubted you. Just barely not enough room for a ratchet. Job is actually pretty easy. the main belt routing can be a pain if you have arms bigger than a 12 year old girl.

RikTT

It's cool but as you found out, not fun w/o space. With the shroud on, it's a massive pain for a 10 min job. I had fun with slipping on the serp belt as well. I changed that out since I added a new SC belt too. I actually slipped it onto the tensioner pulley itself rather than back onto the double pulley. My arms are bigger than a 13 yr old girl

TheTherapist

I replaced the main serpentine recently and gave it a go without removing the fan shroud. An hour and a half later swearing profusely we determined the replacement belt was in fact too short and was never going to fit. Returned it to the auto shop who had guaranteed fitment who promptly said "sorry but the belt looks scratched, we can't swap that". After 2 minutes of gentle verbal persuasion they refunded and ordered in the correct belt for 2 days later. You can imagine my dismay when I went home and discovered this new belt was also way too short for a second time. Before returning a third time I decided to look up the number myself and realized the auto shop had been giving me the W210 belt which is roughly 60mm shorter than the W211 belt I had repeatedly asked for. So anyway 3rd time lucky and with the shroud off on this occasion the belt went in within minutes and that was including the removal of the belt wrap kit - I reckon I could have done it blindfolded by then lol.

For anyone else tackling this (what should be) simple job removing the fan shroud takes less than 5 minutes and makes the job soooo much easier - just don't forget about that pesky little screw lurking underneath in the most difficult to find location. And if it's your first time (or second or third) have a diagram of the belt route handy.

sthoms

Please post the proper belt number?

Thanks!

TheTherapist

All common replacement parts are listed in the sticky on the front page (I probably should have checked there first) which specifies a 2449 although I used a 2445 which seems to perform efficiently.

rockthemullet

I just ran through the whole EPC system for the OP and I can't find a damn thing about the torque. Weird. I suggest finding the thread spec (is it an M10?) and use a best practices table for threading into aluminum media

Also, I ALWAYS pull the fan shroud... it takes 30 seconds and really helps with working on anything up front

TheTherapist

Actually if I remember rightly it specifies 25Nm for Shardul's BWK idler torque so I imagine it would normally be 18-25. I've lost the paperwork though - I'm sure Shardul could set us straight...