Airhead Mainseal Tool in the Seattle Area?

fencermatt · 08-31-2010, 11:02 AM

Howdy everyone,

I am in the process of tearing down and rebuilding an '85 R80 engine in order to transplant it into a Dnepr. I'm planning on replacing the main seal, while I am in there, and I was wondering if any of y'all in the Seattle area might have the special BMW main seal driver tool that I could borrow? If you do I certainly would appreciate it.

Thanks,

Matt Pearsall
'94 KLR 650
88' Dnepr MT-16 (under construction)

Airhead Wrangler · 08-31-2010, 12:14 PM

I don't have the tool, but I just tapped mine in with a drift, slowly and carefully. Worked fine and hasn't leaked a drop.

bgoodsoil · 08-31-2010, 12:20 PM

or just make a seal installer. Take a piece of wood or steel and drill 5 holes in the middle of it to line up with the ones in the crank. I used a metal cover for an electrical box.

Beater · 08-31-2010, 12:34 PM

Quote:

Originally Posted by bgoodsoil

or just make a seal installer. Take a piece of wood or steel and drill 5 holes in the middle of it to line up with the ones in the crank. I used a metal cover for an electrical box.

+1. I can validate this approach ... worked well on my bike.

Thanks Brad!

fencermatt · 08-31-2010, 05:41 PM

Quote:

Originally Posted by bgoodsoil

or just make a seal installer. Take a piece of wood or steel and drill 5 holes in the middle of it to line up with the ones in the crank. I used a metal cover for an electrical box.

That's a darn good idea. Thanks!

Matt Pearsall
'94 KLR 650
'88 Dnepr/BMW (under construction)

jackd · 08-31-2010, 05:52 PM

Use the flywheel bolt washer - the big washer with five holes in it that goes between the bolts and the flywheel as a template when drilling your holes. I built my own tool out of 1/2" Birch plywood. Works great.

08-31-2010, 11:02 AM	#1
fencermatt ^OP n00b Joined: Feb 2007 Oddometer: 4	Airhead Mainseal Tool in the Seattle Area? Howdy everyone, I am in the process of tearing down and rebuilding an '85 R80 engine in order to transplant it into a Dnepr. I'm planning on replacing the main seal, while I am in there, and I was wondering if any of y'all in the Seattle area might have the special BMW main seal driver tool that I could borrow? If you do I certainly would appreciate it. Thanks, Matt Pearsall '94 KLR 650 88' Dnepr MT-16 (under construction)

08-31-2010, 12:14 PM	#2
Airhead Wrangler More tacos than you Joined: Mar 2008 Location: Manzanillo MX, occasionally Seattle Oddometer: 5,103	I don't have the tool, but I just tapped mine in with a drift, slowly and carefully. Worked fine and hasn't leaked a drop. __________________ R80ST Gets The HPN Treatment Ducati Pantah 500SL Rebuild Seattle to TDF on an airhead WTB R100R Mystic sidestand and mount.

08-31-2010, 12:20 PM	#3
bgoodsoil Dare to be Stupid Joined: Jul 2008 Location: Atlanta, GA, USA Oddometer: 3,786	or just make a seal installer. Take a piece of wood or steel and drill 5 holes in the middle of it to line up with the ones in the crank. I used a metal cover for an electrical box. __________________ '85 BMW r80G/S--Another G/S on the road--Central America on a Shoestring--Nova Scotia on a Shoestring Proud SmugMug User Support ADV: Don't give those cheap bums your discount code

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08-31-2010, 05:52 PM	#6
jackd Beastly Adventurer Joined: Dec 2006 Location: North Cowichan Oddometer: 2,369	Use the flywheel bolt washer - the big washer with five holes in it that goes between the bolts and the flywheel as a template when drilling your holes. I built my own tool out of 1/2" Birch plywood. Works great.