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K100-forum.com » Technical, repair and troubleshooting » Engine and transmission » Sump plug gasket?

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1Back to top Go down   Sump plug gasket? Empty Sump plug gasket? Fri Aug 10, 2012 6:03 am

dalderton

dalderton
active member
active member
My K75 relies on face to face sealing between sump plug and sump. This was how it was when I aquired it. It looks as if it may have an O ring originally or perhaps an alloy washer. It did not leak until I changed the oil a couple of days ago but it has started to leak now. I tightened it up a tad more and I think it has stopped but I dont like going too tight in alloy. Any info would be appreciated.
Regards Dennis.

    

2Back to top Go down   Sump plug gasket? Empty Re: Sump plug gasket? Fri Aug 10, 2012 6:14 am

charlie99

charlie99
VIP
VIP
yes indeed there should be a sealing washer in there .

i use a fibre washer ...but the real recomendation is for a brass - copper one i think ....makes sence anyhow !


__________________________________________________
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'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
1987 k100rs ########   "Red"  - (red sports rs TWB style )
1989 K100rt #009637   "Black Betty"  (naked rt ala Nigel , now sporting an rs main fairing )
    

3Back to top Go down   Sump plug gasket? Empty Sump plug Gasket Fri Aug 10, 2012 6:19 am

Lazyboy

Lazyboy
Silver member
Silver member
Hi dalderton, My K100 RT sump plug has a compression washer that I have not replacecd after many oil changes BUT I always use a smear of RTV Silicon Gasket Maker on the thread of the sump plug and have never had a oil leak I also feel that it is a insurance against the plug coming loose.


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1984 BMW K100RT

Bikes Name: Lazyboy
    

4Back to top Go down   Sump plug gasket? Empty Re: Sump plug gasket? Fri Aug 10, 2012 7:09 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
It's an aluminium washer, part number 07 11 9 963 300. 18x22mm


http://realoem.com/bmw/showparts.do?model=0503&mospid=51751&btnr=11_4677&hg=11&fg=13


__________________________________________________
"How many cars did we pass today?" "ALL of them."
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

5Back to top Go down   Sump plug gasket? Empty Re: Sump plug gasket? Fri Aug 10, 2012 7:45 am

Agerbundsen

Agerbundsen
Silver member
Silver member
Dennis, watch out with the overtightening - K-bike sump plugs are somewhat notorious for getting stuck to the point of not being able to get them out with the internal hex wrench.

New alu compression washer each time and no more torque than prescribed. DAMHIKT

    

6Back to top Go down   Sump plug gasket? Empty Re: Sump plug gasket? Fri Aug 10, 2012 7:54 am

92KK 84WW Olaf

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Life time member
Life time member
I do my own car servicing and I have to replace a compressible copper washer on the sump plug at every oil change.

I can buy them cheaply in packs of 10 and my car ones fit the K100. Aluminium will work just as well, both are soft metals and compressible. The plug does not need to be excessively tight, be careful not to strip the threads.....


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

7Back to top Go down   Sump plug gasket? Empty Re: Sump plug gasket? Sat Aug 11, 2012 12:29 am

dalderton

dalderton
active member
active member
Thanks to all who replied. I made a copper one today and fitted it so all is well.
Regards Dennis.

    

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