BMW K bikes (Bricks)

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1Back to top Go down    Timing chain mark on Wed Sep 14, 2016 1:17 pm

nino


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Hi, I have a question about K 100 timing chain. I bought new timing chain from Motobins and ready to change. I noticed that one joint was in color of copper. Is it a mark? If yes where goes that mark?
Regards

    

2Back to top Go down    Re: Timing chain mark on Wed Sep 14, 2016 1:53 pm

Two Wheels Better

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No worries on aligning the chain to anything. It's the gears coordinating that are critical. Be sure the two timing gear arrows are pointing the way they're intended, and the crank gear as well.


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Bricks: '87 K100RS & Big Block'93 K11 frame, forks, Paralever & gearbox w/'02 K1200RS motor, brakes & wheels.
Other: '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic & '77 R75/7-R100 dual-plugged w/340 cam, big valves, 40mm carbs & exhaust.
    

3Back to top Go down    Re: Timing chain mark on Wed Sep 14, 2016 2:08 pm

nino


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Thanks for quick answer

    

4Back to top Go down    Re: Timing chain mark on Wed Sep 14, 2016 11:55 pm

Holister

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Also, before you remove the old chain, for a K100 you need to ensure that zyl#1 is somewhere close to tdc on the compression stroke (#3 for K75 I think). This ensures that the cam shafts don't move when the chain is removed.


__________________________________________________
1988 K100RT VIN No. 0094680
1989 K100RT VIN No. 0097367 (naked)
1996 K1100RS VIN No. 0451808
Fuel: 95 Octane
Engine Oil:Nulon Full Synthetic 15W50
Gear Box Oil: Nulon Synthetic 75W90
    

5Back to top Go down    Re: Timing chain mark on Thu Sep 15, 2016 1:58 am

blaKey

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Good tip, Mr Holister!


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

6Back to top Go down    Pics for you to use as a guide on Mon Oct 10, 2016 1:58 am

SniperX

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In this picture you can see the cam sprockets lined up. The little U shapes at the top of both cam sprockets should be as close as possible to the top of the sprocket as shown.



As well, the crank has a PIN on it which is lined up as shown when the cam sprockets are aligned as shown in the previous picture. The three holes in the crank snout are for the screws that hold the timing plate on.





After lining all these up BEFORE you remove the old chain, you then follow the manual as closely as possible for the correct removal of the timing guides and tensioner. If you need further help since I just did mine a couple months ago I'll be glad to add more information. If I don't quickly respond, email me a reminder and Ill come back here and answer. kevin0232@gmail.com



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1972 BMW 3.0CSL, 1985 BMW Dinan 535i, 2001 Honda XR400R (plated), 1985 K100RT, 2004 ZX3 Focus, 1991 Dodge Power Wagon 4x4. 1977 Plymouth Trailduster 35K original miles!
    

7Back to top Go down    Re: Timing chain mark on Wed Oct 12, 2016 2:32 am

SniperX

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@Holister wrote:Also, before you remove the old chain, for a K100 you need to ensure that zyl#1 is somewhere close to tdc on the compression stroke (#3 for K75 I think). This ensures that the cam shafts don't move when the chain is removed.
Or you can remove the covers (cam cover, bottom end cover, then timing cover) and align the cams and crank sprocket dead up then scribe marks for all and remove the chain and related components.


__________________________________________________
1972 BMW 3.0CSL, 1985 BMW Dinan 535i, 2001 Honda XR400R (plated), 1985 K100RT, 2004 ZX3 Focus, 1991 Dodge Power Wagon 4x4. 1977 Plymouth Trailduster 35K original miles!
    

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