Pfc. Parts

A couple of weeks ago I lost the water pump on my '85 (only a year and a half after not replacing it during a TB refresh). The last step before removing the old pump was getting the roller (928 105 571 02) off the boss, it's supposed to slide right off. Sure. No problem

I tried using Dwayne's solution (https://rennlist.com/forums/928-foru...-w-pics-2.html Chapter 8, Post #18, Part #7) for a frozen roller and spent a couple of days waiting for delivery on the "slimmest" puller I could find on Amazon. It was still too thick to get in between the pump body and roller at more than one point. I resorted to a small crowbar and a block of wood, carefully levering the one point I could get the edge of a crowbar into, rotating the roller slightly and lightly levering again. After and hour and a half I got the roller off the boss.

But I wasn't as careful as I should have been and there are very small nicks on the back of the roller now. I thought, "Oh well. It's old anyway, may as well replace it". Then I priced the part.

Anyone have experience re-using this part after it's been extracted under duress? There's only one nick that can be seen or felt from the top, I'm tempted to try polishing it out with a dremel. Bad idea? How sensitive is the belt to the finish on the back roller edge?

I know what I should do I suppose. Just thought I'd cry in my beer in public. It's a Saturday afternoon...

ROG100

Polish the nick out and replace just the bearing

Pfc. Parts

Thanks Roger. I have Sunday cut out for me now Here I was thinking I might take a day off and order more parts on Monday...

The good news is I'll be getting that new Laso pump from you right on time!

Pfc. Parts

Anyone know which bearing this is? I put a mic on it, it's 42mm diameter with a 20mm bore, manufacturer looks like INA (Taiwan). Standard "Deep Groove" style, ball bearing. I can't measure thickness without pressing it out and I regrettably don't have a working press, but if logic serves and it really is a ball rather than roller bearing it should be about 20mm thick. No separate number in the PET.

Logic (at least mine) doesn't serve. Visually it looks like it's about 12mm thick but I can't measure it accurately.

The INA part number is F-203626. I'm pretty sure I just replaced this part a year or so ago but (shudder) I can't seem to find the receipts otherwise I'd probably just put it back in with the old bearings. The bearings feel firm and smooth. I don't know where I got it. I believe I actually bought the TB kit 4 or so years ago and only recently installed it.

BTW, it polished out nicely, thanks for the support. I always like to check with a few experts before doing something stupid; as my Mother used to say, "Misery loves company"

ROG100

If the bearing runs good and has no feel of wear put it back on and drive.

No No wait you need new parts place your order now 8>)

Pfc. Parts

Correction: The bearing is marked 6004LU. Looks like a 6004-2NSE Nachi. Originally manufactured by INA/***, don't know what the "LU" designates. NLA (as marked) according to their recent price list. I'll call them for a superseding part.

Pfc. Parts

I'd almost think you had some ulterior motive if it wasn't a $9 part. "Hey! I have an idea! Let's get Roger to spend a couple of hours packing and mailing a $9 part! That'll be funny!"