HELP: Which oem pulley is this?

[ZStig]

The one with the 3 silver bolts and rusted middle, and the tension pulley thats right next to it on the side. Anyone have part numbers for these? As you can see, mine have collided together

[Beedub]

last time i pulled the part numbers for the ESS tensioners they were a toyota part.
how may miles do you have on this kit as i wouldnt expect these to break in this way??
can you use your ESS warranty to get them to replace?? may be worth a shot?

[ZStig]

Im pretty sure thats an oem tensioner and a water pump pulley next to it. I dont remember installing a tensioner from ESS.

64k miles on the car, probably over a year on the ess kit

[Beedub]

Originally Posted by ZStig

Im pretty sure thats an oem tensioner and a water pump pulley next to it. I dont remember installing a tensioner from ESS.

64k miles on the car, probably over a year on the ess kit

i may be wrong but im sure the tensioners came with the s/c kit.

[22022]

Originally Posted by Beedub

i may be wrong but im sure the tensioners came with the s/c kit.

My kit came with a new pulley for the water pump ( that the one with the rust in the middle)and the crank pulley,the tensioner is oem.

[Shipkiller]

The 'The one with the 3 silver bolts and rusted middle' is the waterpump pully. If this was an E46, the fan would be threaded onto this pully.

Part no. eight (8): http://www.realoem.com/bmw/showparts...80&hg=11&fg=35

[Beedub]

Originally Posted by 22022

My kit came with a new pulley for the water pump ( that the one with the rust in the middle)and the crank pulley,the tensioner is oem.

my kit didnt get a new water pump pulley?? you'd be underdriving it with our spec s/c pulley.

[ZStig]

Originally Posted by Shipkiller

The 'The one with the 3 silver bolts and rusted middle' is the waterpump pully. If this was an E46, the fan would be threaded onto this pully.

Part no. eight (8): http://www.realoem.com/bmw/showparts...80&hg=11&fg=35

Thanks!

[22022]

Originally Posted by Beedub

my kit didnt get a new water pump pulley?? you'd be underdriving it with our spec s/c pulley.

I went and measured the oem water pump pulley it is 4-1/2 '' outside diameter,The ESS one is 5-1/2" outside diameter.
So my water pump would spin slower than yours.....I think.

[ZStig]

Hmm. I thought i only got one pulley from ess, the double ribbed crankshaft pulley. I guess i will compare to the replacement piece im picking up tomorrow

[Beedub]

Originally Posted by ZStig

Hmm. I thought i only got one pulley from ess, the double ribbed crankshaft pulley. I guess i will compare to the replacement piece im picking up tomorrow

i only got crankshaft and s/c pulley.

im guessing they are using the waterpump to change the ratio now instead of the crank sizing, either way i would NOT be happy with unde rdriveing the water pump at all.

[Beedub]

Originally Posted by 22022

I went and measured the oem water pump pulley it is 4-1/2 '' outside diameter,The ESS one is 5-1/2" outside diameter.
So my water pump would spin slower than yours.....I think.

yes. yours would spin slower. just checked the instructions and their is no mention of changing water pump in my set.

[ZStig]

well, f&*^^&ck me, the reason the hydraulic tensioner broke, is because the bracket holding it broke off with the bolt. I'm hoping this bracket isn't part of the engine block, and isn't too expensive....

Anyone know the part number?

[Shipkiller]

Is this it (numbers two or seven):

http://www.realoem.com/bmw/showparts...16&hg=11&fg=18

[ZStig]

no its the thing that the hydraulic tensioner bolts onto, a pretty big piece.

Whatever part # 20 bolts onto
http://www.realoem.com/bmw/showparts...98&hg=11&fg=18

[Shipkiller]

Since I cannot see the area that well....

I wonder if it is the timing case cover?

http://www.realoem.com/bmw/showparts...89&hg=11&fg=10

Or maybe the Aggregate support with oil filter?

http://www.realoem.com/bmw/showparts...01&hg=11&fg=30

[Beedub]

oh god... this is getting scary... unusual failure. sorry to see this tom.

[22022]

Zstig from your pic your Part is #11427839858 part #1.
http://www.realoem.com/bmw/showparts...08&hg=11&fg=30
That sucks!!
How the F#$k did this break?!!!

[22022]

Originally Posted by Beedub

oh god... this is getting scary... unusual failure. sorry to see this tom.

Your absolutely right,it is fcken scary!

[pokeybritches]

Time to check the junk yards. Looks like the part is used in the M3 and Z3M (S54).

[Beedub]

i dunno i just had a good look at mine? the OFH is a properly solid piece of metal, im guessing yours may have been a bad casting from the factory, ive never seen a failure like this on an s54..... it sucks your one of the unlucky ones.... i know moneys tight as well right now so im feeling for you, it looks like the s/c and main hardware will need to be removed to do this job :-( what a freaking nightmare!!!

good luck tom, if i can in anyway help with this let me know, i can source this piece pretty easily used, personally id buy a new one.

[ZStig]

Originally Posted by Beedub

i dunno i just had a good look at mine? the OFH is a properly solid piece of metal, im guessing yours may have been a bad casting from the factory, ive never seen a failure like this on an s54..... it sucks your one of the unlucky ones.... i know moneys tight as well right now so im feeling for you, it looks like the s/c and main hardware will need to be removed to do this job :-( what a freaking nightmare!!!

good luck tom, if i can in anyway help with this let me know, i can source this piece pretty easily used, personally id buy a new one.

I believe the long bolt on my hydraulic tensioner got loosened, it is NOT an OEM piece, which was probably the cause. I don't know who the f*(&ck put a cheap ass bolt in there. Since it loosened, the vibration from the supercharger and the rest of the belt put too much strain on it, and it cracked off, crashing into my waterpump pulley.

22022 and shipkiller, thank you very much with your help in hunting this down. VAC motorsports in Philly will probably hook me up with a good used one. Just a freak accident with this, that had a snowball effect.

Yes, the supercharger will have to come out to service this... There goes my mod money