R100 Big Tube swingarm questions

[brocktoon]

So I got the big tube swingarm and the NTN 32203 bearings. Only problem is I'm missing the seals. The parts fiches (which, as mentioned before, have been known to suck) don't seem to show the grease seals shown here:



Am I missing them in the fiche? Anyone know where I can get them?

[Airhead Wrangler]

Originally Posted by brocktoon

Am I missing them in the fiche? Anyone know where I can get them?

I just got new swingarm bearings a couple months ago and the seals came as part of the bearing. They aren't listed separately as far as I know. I ordered the BMW part though, not an equivalant.

[brocktoon]

I think you're right. Well, crap. So much for saving money with the equivalent non-OEM bearing.

[bmweuro]

Originally Posted by brocktoon

I think you're right. Well, crap. So much for saving money with the equivalent non-OEM bearing.

Re-use the old seals. They look straight and in good shape. If there is enough grease in the bearing you should be fine.

[brocktoon]

Nah, those aren't mine. That was just an example pic from earlier in the thread. I tossed the old ones -- hopefully into the unused parts bin and NOT in the trash.

[ME 109]

Go look in that bin brocktoon, you'll want those old seals. They're not a perfect fit as such however they will assist in keeping the crap out.
From what I've found it will be easy to grease the bearings through the 6mm allen key hole in the centre of the swing arm pivot pin, then just push the seal back into place. I reckon the grease will hold the seal in place quite well.
I only used the larger outer seal.

[brocktoon]

So, those who've made the switch to a big tube swingarm: did you also switch to the later driveshaft boot and clamps? Having trouble getting mine to fit.

[bmweuro]

Originally Posted by brocktoon

So, those who've made the switch to a big tube swingarm: did you also switch to the later driveshaft boot and clamps? Having trouble getting mine to fit.

All of the driveshaft boots are the same. There is no early or late. make sure you have it installed ib the proper direction.

[brocktoon]

All of the driveshaft boots are the same. There is no early or late.

So they are. I assumed since the /5 swingarm had a rectangular-ish driveshaft opening, whereas the big tube swingarm has a completely circular driveshaft opening, that they would've modified the boot to fit. Looks like the tension clasps were the only parts that changed -- probably lengthened. I'll get some longer clasps.