engine and drivetrain Alternator Stud & Bushing goo too!

[MrSharky]

Okay.. got the alternator off, and turns out there's a boatload of goo where the new bushings should go...any tips on cleaning it out?

Also - see attached pic - the stud that comes out of the engine appears to be chewed up pretty bad. Is that a replaceable part? Doesn't show up on any of the realoem diagrams that I could find... wonder if there's any chance anyone knows how or where to get a replacement??

thanks in advance,

Matt

[MrSharky]

In this diagram, I believe the part I'm looking for goes thru 16, 17, 15 and is capped off by 7.

[SantaBarbara02]

Hey Matt,

Just pulled out my alternator last weekend and had the same issue. Contact Steve @ Blunt. His email is Steve@Blunttech.com

You can get new bushings for very cheap, also make sure to get new pressure rings. The new bushings can be difficult to get in so take your time and use clamps if you have them.

Use carb cleaner and a pie pan with gloves to clean this. Use a razor blade and a wire brush. Clean everything really well to insure the new bushings fit.

Dave

[Mike Self]

engine block bits as it screws into the engine block. You probably should replace it, but just don't break the old one off removing it!

I'd recommend urethane bushings for the alternator vs the OEM rubber ones. Rubber bushings will last 2-3 years and turn into black goo (what you're cleaning off). Urethane bushings will last...well, indefinintely.

And make sure you get a urethane bushing for the lower adjustment arm too...I think there's a bushing for a VW Rabbit that works. Someone will know the application.

cheers

mike

[MrSharky]

engine block bits as it screws into the engine block. You probably should replace it, but just don't break the old one off removing it!

I'd recommend urethane bushings for the alternator vs the OEM rubber ones. Rubber bushings will last 2-3 years and turn into black goo (what you're cleaning off). Urethane bushings will last...well, indefinintely.

And make sure you get a urethane bushing for the lower adjustment arm too...I think there's a bushing for a VW Rabbit that works. Someone will know the application.

cheers

mike

Mike -

Would you mind posting the diagram?? I'm still having trouble finding it - Blunt was looking too and had trouble finding it.

Thanks!

Matt

[Emyers]

There is in fact a bushing Mike refers to from a VW that is urethane. I bought mine from Hueberger VW when I was stationed in Colorado Springs years ago....they do last, still running it. I think the info/PN is listed in the compliation of info called "Tech Tips" in a black binder that was published by BMW CCA, also years ago. I will look in mine this evening to see if I can dig it out.

Snakedriver

74 02Lux

02 M Roadster

72 Volvo 1800ES

[Mike Self]

for that Alternator Stud and coulnd't find it either. It screws into the lower timing chain cover and isn't on the page with the cover. Best thing to try is to remove the one you have and take it down to a NAPA store or the like and match it up. It's nothing special, just an (I think) 8 mm stud.

cheers

mike

[MrSharky]

Thanks Mike - it's definitely not on any of the OEM diagrams that I've been able to find... think I even stumped Blunt (do I get a prize for that ?)

But.. after some digging and looking - I took the old one off (came of much easier than I expected it would) and you're right - it's an 8mm. For some reason, none of the auto parts stores around here have these things. I checked Home Depot too, and the best I could find was a metric bolt. I cut it down to size, and I think it'll work at least temporarily. How does one ask a Home Depot guy for an 8mm stud??

Oh, and after poring over the OEM site diagrams, I did come across this...

07 12 9 908 135 07 Stud bolt M8X50 1 03/1966 07/1977

I'm pretty sure it's right - 8mm x 50 mm (which is pretty close to what I took out of there - it was bent so I'm not positive of the length, but it was closer to 5cm than anything else)

Anyway.. now I'm having trouble finding the bushings for the slide rail....they're around, but backordered. I guess I'll just have to be patient.

[Fishhead]

Just a little off topic...

Do the bushings for the alternator really need to be made of rubber/urethane? I would like to replace mine and I can machine a set in either aluminum or steel.

I don't like the "slop" that the rubber mounts have in them and I think (in theory) sturdier mounts would be better.

[MrSharky]

Just a little off topic...

Do the bushings for the alternator really need to be made of rubber/urethane? I would like to replace mine and I can machine a set in either aluminum or steel.

I don't like the "slop" that the rubber mounts have in them and I think (in theory) sturdier mounts would be better.

I ain't no rocket scientist, but I think if you made them out of some sort of metal, you wouldn't have enough "give" - too many metal parts clanking around in there together.... I think the ears of the alternator might be at risk of cracking... again.. that's just one man's opinion.

[MrSharky]

Oh.. and I forgot to ask... does that look like the pieces are in the right order of assembly? I didn't take my "before" pictures....

[nbcbird]

I am confused. Are there really urethane bushings for the mounting of the adjustment bracket to the block (or was this referral to the mounts on alternator itself--I have never seen any for the bracket)?

Yes, the urethane bushings last MUCH longer, and the sequence in the photo is correct for reinstallation (circlips to front).

Lubricate the bushings (I use silicone grease) liberally before insertion and make sure everything is aligned before exerting real pressure. You will need to use a clamp or vise to fully compress the bushings so the groove for the circlip will be exposed (I used a 15mm or so socket with the washer).

[MrSharky]

Not sure if they're urethane, but there are bushings for the bracket:

11 72 1 261 404 is the part number... go to bavauto and search "alternator" and you'll see the picture.

Thanks for the grease idea...wish I'd done that beforehand... that was a beyotch to get those bushings in with just my hands.

[nbcbird]

The 11 72 1 261 404 number is for the standard OEM rubber bushing. This thread got me thinking about making some out of delrin.