K11 Owners Group

le_pinceau · Posted: Fri Jan 03, 2014 2:15 pm Post subject: Timing Cover Leak

Hello.. this might have been covered in another post but I haven't seen one so far. If so, my apologies.

I have a leak on my timing cover, the bottom right, looking at the engine from the front to back. It is were the valve cover rubber gasket meets the timing cover and I believe it is from simple age. 95 K 1100RS with 38,000 Kilometers on it. My question is. I am assuming I will have to remove the valve cover and timing cover to repair the gasket on the timing cover, but will I also need to remove the crankshaft cover? Thanks in advance for any answers, great forum.
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95 K1100 RS
06 K1200 S

Tim (Midland Section) · Posted: Fri Jan 03, 2014 3:32 pm Post subject:

Try this :- http://k11og.org/forum/viewtopic.php?t=8395

I searched using "timing AND cover AND leak" If you put AND in caps you only get 17 hits instead of 1050.
HTH
HNY
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le_pinceau · Posted: Fri Jan 03, 2014 6:24 pm Post subject: Timing cover Leak..

Hi Tim.. thanks for the WOW!!! prompt reply Wink

I actually had viewed that post and considered it but I got this machine from the original owner about 10 K Kilo ago and I don't think the pump would have been removed and regasketed. Could be a BMW flaw for certain.. I will check it over the next couple of months and let you know Smile

..

Again, Thanks
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95 K1100 RS
06 K1200 S

Inge K. · Posted: Fri Jan 03, 2014 7:15 pm Post subject: Re: Timing Cover Leak

le_pinceau · Posted: Fri Jan 03, 2014 7:40 pm Post subject: timing cover leak

Hello again Wink

I was wondering if I could only remove the valve cover and the timing cover.. is there not a silicone sealer behind the timing cover.. in my mind I thought of it as a gasket.. my mistake. So I should be able to pull both valve cover and timing cover; clean the sealant from the timing cover and check the rubber gasket from the valve cover to make sure it isn't cracked or damaged in anyway *replace if it is* and then use as you say small bead of sealer on the timing cover and remount.

I might just check for a blocked u channel while I am there.. we won't be riding for a few months and I am doing a couple of things while I have some weekends.. Wink

Again.. thanks a ton..

Kris
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95 K1100 RS
06 K1200 S

SugarHillCTD · Posted: Sat Jan 04, 2014 8:11 am Post subject:

Does your engine look like this? (oil/coolant pump removed, obviously)

Then do check the U channel since it may be the source of the oil leak even though you see oil out at the valve cover. It was on my previous K-RS.

If you remove the oil/coolant pump then re-install, be careful with the amount of sealant you apply. More is NOT better. Good luck with your R&R.

Here is my thread about that type of oil leak:

http://k11og.org/forum/viewtopic.php?t=8395
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John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

Tim (Midland Section) · Posted: Sat Jan 04, 2014 5:36 pm Post subject:

Well John, (Sugarhill) we both posted the same link. I remembered your post when Kris posted, as I have had the same problem for a few years now but can't be ars..... bothered to do it. Similarly my oil pump has never been removed either.
I believe this leak is a common occurrence, but it keeps my left boot waterproof.
As an old brit biker, try this:- when leak tracing, clean the area, chuck some flour at it & ride for a bit in the dry.
_________________
Regards Tim,

Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
#485

SugarHillCTD · Posted: Sun Jan 05, 2014 10:15 am Post subject:

Tim,

My error for not looking at your thread reference. Embarassed

Thanks for the tip about the flour.

John
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John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

le_pinceau · Posted: Sun Jan 12, 2014 1:34 pm Post subject:

Too.. cool ..

I have been on a lot of forums over the years (not bike ones necessarily) and this is the only one were I get multiple super fast responses.. hmmm must be the people.. thanks a ton..

I am just getting a chance today to look again and hope to get some of the R&R started... will let you know if other problems arise Wink

Thanks again
Kris
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95 K1100 RS
06 K1200 S

SugarHillCTD · Posted: Sun Jan 12, 2014 5:21 pm Post subject:

Kris,

I have been on some very SLOW forums also.

But that's not us.... Very Happy

Really great group here, even if we are all around the world.

John
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John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

le_pinceau · Posted: Sun Jan 26, 2014 7:06 pm Post subject: Just wanted to update

I had a chance over the weekend to get the oil and water pump off of the K.. U channel covered by sealer. Funny thing.. I figured I would just keep on and removed the crank cover; timing cover and cylinder cover and ensure every thing was as fresh as possible. When I took off the cylinder cover, the rubber gasket was covered both sides with a gasket sealer (blue, not factory I am assuming) and it was seeping very lightly here and there. So here's my new question to whom ever would answer with a bit of knowledge which I am lacking. Isn't putting this gasket sealer over what appears a pliable; not cracked; non-cut or damaged rubber gasket asking for a problem or was this a good choice for someone not quite sure were to start. Bear in mind I am coming at this without a lot of knowledge myself. (it's why I am asking) Thanks again.. love the forum... Wink

Kris
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95 K1100 RS
06 K1200 S

Scott_Anderson · Posted: Sun Jan 26, 2014 8:40 pm Post subject:

If you have a good pliable gasket with very clean surfaces you should only need the "form-a-gasket" sealer at the corners where the covers meet.
You will want some gasket sealer at the "half-moon" parts of the gasket as the gasket can leak there with out extra sealer.

One other factor with the gaskets sealing properly is the condition/pliability of the rubber bushings(11 14 1 461 475) on the cover bolts. The bushings are what maintains the "pressure" on the gaskets.
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1995 K1100LT 0302044
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1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

Flying Duck · Posted: Sun Jan 26, 2014 9:56 pm Post subject:

And when putting the valve/crank covers back on do not over-torque their bolts. They are "shoulder" bolts and it can strip the threads.
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le_pinceau · Posted: Mon Feb 17, 2014 4:41 pm Post subject: Thanks for heads up

I noticed that when I pulled them off and had to scrap gasket sealer from the rubber bushings.. out comes the keyboard and orders new ones.. managed to salvage a couple but most were old and very hard in comparison to the ones on the crank side.. hmm replace or curse at your self later I thought Smile

..
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95 K1100 RS
06 K1200 S