Techno Duck

Just curious.. in the process of changing basically every seal and o-ring on an early '85 car and i am up to the balance shaft housings. There is a metal sleeve that goes into here that has a considerable groove, both on the top (picture below) and the bottom housing. The part is replaceable and is listed in the PET book..but i am not sure if this is something that is 'normal' or should be replaced while we have everything apart. I ask because most front engine reseal kits do not include these sleeves.

kwdrus

I replaced mine.

Jakerx

Yep, replace 'em. It's not in the seal kit because it's not a seal. It's a bearing

Stan944

I wouldn't unless there was lots of side play. Still, it won't hurt to replace it. I would just polish it to smooth out the grove.

M758

I have not in any of my re builts. However the sleeve where the oil seal runs on can develope groove. If this goove is deep you need to replace the sleeve since even a new seal will leak.

Techno Duck

Thanks for all the info everyone.. i think we are basically just going to replace the thing. We already have everything apart, whats another 2-3 days waiting instead of having to redo everything 2-3 days due to a massive oil leak from the balance shaft housing .

hosrom_951

If you ordered a front seal kit delux from Zims, the kit contains three sleeves (balance shafts and cam shaft), it is also the most competitive in price compared to other vendors as well....and a new cam bolt is also included

Mike C.

Yes replace them!

Stan944

I believe he's talking about the metal bearing (without *****), not a seal nor the mylar ring. A grove in this bearing will not cause oil leaks, but rather mechanical problems if severe.
But I've been outvoted, and I surrender.

Techno Duck

Well i finnaly got this part in today. Now the question is.. how the hell do i get out the old one? I tried pounding it out with a 24mm socket and a mallet, but it hasnt budged. Before i put more force into this.. any other ideas? The shop manual shows a special tool, the 9210. Maybe this is something i should get a machine shop handle.. with a nice hydraulic press.

Mike C.

Um.. I think they should easily slide off the shaft IIRC (it's been a while since I did them). Are you talking about the sprockets perchance? I re-read your first post and now I'm thinking you are talking about the friction bearing in the housing. If so, there is supposed to be a groove in there for oil and I don't believe most people replace these. If this is the part you mean, you might try heating the aluminum up to 300 F and then the bearing should come out easily. You can use a hot plate but be sure to get a decent thermometer so you don't over heat the aluminum.

Charlie

I changed mine. I used a press to remove the old and install the new bearing. I used a socket that was just a little smaller than the OD of the bearing to press the bearings.