K11 Owners Group

simonlap · Posted: Mon Jul 18, 2011 12:54 pm Post subject: water oil pump gasket sealant

What is the best sealant for putting my water pump back on? there are so many to choose from, we are looking at alloy to alloy nice and clean.
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K1100rs 1992 model
F650 ST 1996 model
ride it like you stole it, fix it like it's your first girlfriend

Inge K. · Posted: Mon Jul 18, 2011 1:14 pm Post subject:

Have tried different kinds with varying results (did start to leak again after some time),
the best result I got so far is with Permatex blue RTV (no leak).

Inge K.

simonlap · Posted: Mon Jul 18, 2011 1:16 pm Post subject:

Thanks Inge, good enough for me if I can get it in the UK
_________________
K1100rs 1992 model
F650 ST 1996 model
ride it like you stole it, fix it like it's your first girlfriend

Ernie-NH · Posted: Mon Jul 18, 2011 3:05 pm Post subject:

Hi Simon...

I use Yamabond found at any yamaha dealer. Put in on in a very think skin layer otherwise you'll 'gunk up' the little channel at the upper right on the engine side. I know the product is NOT BMW but its available nearly everywhere as is the PemaTex 'blue' that Inge recommended.

Good luck.......// Ernie in NH
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AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Ernie-NH · Posted: Mon Jul 18, 2011 6:52 pm Post subject:

Hi Simon...

If you have the BMW service manual, refer to Section 11, pg. 29/30 for installation and torques. Remember that engine face as well as the back side of the pump casting are very very soft, so any ding can lead to a leak...plus the "bolts" can be easily stripped if the torques are exceeded..

Have fun...........// Ernie in NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

robleyd · Posted: Tue Jul 19, 2011 9:03 am Post subject:

I'd imagine you can get Loctite Blue Maxx which is just the bee's knees. A light coating and finger tighten the bolts until the mating faces touch, leave for about 15 minutes to nearly set, then do the final tighten.
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David, owner of:
1996 K1100 LT

hfxrzw · Mad Brick Rider Joined: 30 Jan 2009 Posts: 78

And the 'official' stuff is easily obtainable from the usual suspects in the UK (Moto-Bins, Motorworks and James Sherlock).
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Cheers, Rene

Greetings from Florida.

BMW K100 '85

kstones · Posted: Sat Jul 30, 2011 7:13 am Post subject: Pump body sealant

The BMW tri-bond has worked well for five years so far. whatever it has to be thin, but most of both surface must be really clean.
Cheers
Tony.

kstones · Posted: Sat Jul 30, 2011 7:16 am Post subject: correction!Pump sealant.

Last message was messy!
The sealant has to be thin and easy flowing.
Most important of all both surfaces must be really clean.
Tony.