Appearance of used coolant

[632 Regal]

Yeah, Bentley's says "if you have trouble getting the fan clutch nut off, use BMW special tool..."

I don't know, tightening the belt may help. I really wish there was some way I could grab hold of that sprocket right behind the bolt - that would do the trick. *hmmmm*

Jeff, what did you use to hold that sprocket still? That's exactly what I want to do. I'm thinking... locking clamp? But that might be too tight and crush the sprocket.

[JonE]

The new BMP catalog has a pretty good picture of how that "special" tool works. I noticed the part # is different depending on which model/engine you have.

[andyman32]

Cool tool Jeff. So, the hole there fits over one of the four sprocket mounting bolts to hold it still while you wrench the fan bolt in the other direction?

*sigh*

Can I get one of those at AutoZone?

[andyman32]

BTW - I thought better of using a locking clamp to hold that sprocket.

In a gravel driveway, with an overstuffed toolbox, no torch and no scrap metal, I'm trying to imagine what I can use to hold the pully while I apply the clockwise torque.

hey, as long as you guys are on this thread - do you usually remove the hood when you do this much work? The forward-tilting hood is frankly a bitch when you need to get in front of the block, but I don't know if removing the hood is justified.

[632 Regal]

BTW - I thought better of using a locking clamp to hold that sprocket.

In a gravel driveway, with an overstuffed toolbox, no torch and no scrap metal, I'm trying to imagine what I can use to hold the pully while I apply the clockwise torque.

hey, as long as you guys are on this thread - do you usually remove the hood when you do this much work? The forward-tilting hood is frankly a bitch when you need to get in front of the block, but I don't know if removing the hood is justified.

[andyman32]

I made a special tool too. It's so unbelievably, ground-breakingly cool that I had to snap some pictures of it and post it for you guys:





If you can picture this, you put the closed end of the 10mm wrench around one of the four sprocket mounting bolts, then turn it counterclockwise until it hits the big fan clutch nut. Then, put your open-end crescent wrench around the 32mm nut. Hold the 10mm wrench firmly as you twist in the opposite direction with the 32mm crescent wrench. It does take some seriously frustrating finagling, but once you get the tools in place, it spins right off.

[JonE]

Wow! and according to your posts it only took about 15-20minutes, that is amazing!! Must be more space in your vehicle to get a crescent wrench in there, wasn't happening with my E30 or the 535i. Good job, man!

[billb]

I made a special tool too. It's so unbelievably, ground-breakingly cool that I had to snap some pictures of it and post it for you guys:





If you can picture this, you put the closed end of the 10mm wrench around one of the four sprocket mounting bolts, then turn it counterclockwise until it hits the big fan clutch nut. Then, put your open-end crescent wrench around the 32mm nut. Hold the 10mm wrench firmly as you twist in the opposite direction with the 32mm crescent wrench. It does take some seriously frustrating finagling, but once you get the tools in place, it spins right off.

[632 Regal]

clearance issues if I remember right. That is extremely simple. Even the Orc weapon was a bitch to get it to hang on enough to lock into position.

[andyman32]

Well, I can see how your orc blade would barely grip those bolts - they only protrude from flush with the pulley by less than 1mm. The only way I could do it was by using that tiny 10mm wrench together with a thin adjustable crescent wrench; the fixed 1.25" wrench (1.25" is almost exactly 32mm) was too fat to fit in there together with the little 10mm wrench. And, I had to use the "bent" closed end of the 10mm wrench to get further down on the bolt; they don't protrude far enough to use the open end.

Wow, the 8 shock damper pulley bolts are on there good! I scraped my knuckles somethin' fierce getting those off.

Drive belts and pulleys are off... now removing / swapping out water pump...