BMW K bikes (Bricks)

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1Back to top Go down    White smoke on Thu Oct 19, 2017 6:42 pm

Garyk100

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My son was following me the other day and said my bike has white smoke coming out the exhaust, the bike does not drink the coolant and the oil is not contaminated, so maybe a head gasket. Any thoughts Krew


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The early bird catches the worm, but the second mouse gets the cheese

1991 K100rs16v
1993 K1100LT
    

2Back to top Go down    Re: White smoke on Thu Oct 19, 2017 7:11 pm

indian036

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A number of possibilities spring to mind, but first, can we have more details of what was observed?

A wisp of smoke or a cloud?
Was it continuous the whole time you were riding?
How long was the ride?
If not continuous, at what stage of the ride and for how long?
Was the bike on the side stand prior to the ride? For how long?

A head gasket issue will have different symptoms depending on where the fault is on the gasket, but contaminated oil and loss of coolant are strong possibilities, so head gasket may not be the issue.

Bill


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1985 K100RT VIN 0028991 My original Very Happy (Historic rego)
1985 K100RT VIN 0029036 BOB the Blue Old Bike (Historic rego)
1990 K100LT VIN 0190452 Work in progress
1984 K100RT VIN 0023022 Work needing lots of progress

1986 K100RT VIN 0090542 Work needing lots and lots of progress
1993 K1100LT VIN 0183046 Work in progress
1993 K75S VIN 0213045 Newest toy, slightly non-original
    

3Back to top Go down    white smoke on Thu Oct 19, 2017 8:12 pm

Garyk100

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Thanks Bill, in another post I wrote about it running warm, replaced the thermostat, it still runs a bit warm, but takes longer before the fan kicks in, I put that down to the corolla thermostat, it has never overheated, owned it for 19yrs. The bike has sat for a week or two, it usually starts easy, not today it took a lot of cranking before it started and when it did the fast idle was very rough, the engine stopped twice then idled rough with a continuous white vapour out the exhaust, hmmmmmm


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The early bird catches the worm, but the second mouse gets the cheese

1991 K100rs16v
1993 K1100LT
    

4Back to top Go down    Re: White smoke on Thu Oct 19, 2017 9:15 pm

RicK G

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Give it a compression test and if possible a leak down but I would be thinking head gasket. If you do remove the head you will need to get the correct bit for the head bolts which is not the usual torx but a torx plus which has a slightly different shape, more a spline, that way you wont chew out the heads and have to drill the heads of the bolts. Point seven five had a bit about it some time ago and as usual I cant find it. Sometimes I have trouble finding the ground with a rock. Laughing


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

5Back to top Go down    Re: White smoke on Thu Oct 19, 2017 9:38 pm

Point-Seven-five

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Here's the bit you need for the head bolts. It works with a pneumatic impact wrench which is what I would use if I had to go in there again. You are breaking loose a bolt under a lot of torque and the impact wrench will do it more reliably than a breaker bar.

https://www.ebay.com/itm/TEMO-IP-50-3-Long-Black-Impact-Torx-Plus-6-point-Socket-Bit-1-2-Drive-/132204305289?epid=1339458897&hash=item1ec7fd9b89:g:coIAAOSw0hlZJvK2


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Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

6Back to top Go down    Shiiiiiiii........ on Thu Oct 19, 2017 11:37 pm

Garyk100

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thanks Krew, looks like I need to get some bits and put greasy finger prints on some more pages of my workshop manual, I will be back with more questions, when the head is removed is there other maintenance bits to be replaced?


__________________________________________________
The early bird catches the worm, but the second mouse gets the cheese

1991 K100rs16v
1993 K1100LT
    

7Back to top Go down    Re: White smoke on Fri Oct 20, 2017 4:04 am

charlie99

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sad to hear Gary
yep pull the headgasket

you will need new valve stem seals for a start ( no use pulling it all apart and not doing them )

get some valve lapping paste and the suction cup twirly thingy
and you will probably need to get the head ground ..just for satisfaction that all is tickety boo as the new head gasket is replaced
as you remove the timing case etc ...probably worth getting a new cam chain tensioner ...the snail cam base inside the tensioner is sharks toothed to start with but I have seen many with rounded edges ...letting the tensioner unwind ...

the head gasket leak might explain some of the high pressure in the coolant system and thermal issues


good luck


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

8Back to top Go down    White smoke = $time on Fri Oct 20, 2017 6:56 am

Garyk100

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Thanks Charlie, I nearly had the new K11 on the road, but the effort must go into number 1 K as it is registered, Am tempted to dress the 11 in black RS attire with the bits it's needs from number 1, now where is my hammer screwdriver and adjustable spanner...........


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The early bird catches the worm, but the second mouse gets the cheese

1991 K100rs16v
1993 K1100LT
    

9Back to top Go down    Re: White smoke on Fri Oct 20, 2017 4:32 pm

charlie99

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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

10Back to top Go down    Re: White smoke on Fri Oct 20, 2017 8:56 pm

RicK G

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@Garyk100 wrote:Thanks Charlie, I nearly had the new K11 on the road, but the effort must go into number 1 K as it is registered, Am tempted to dress the 11 in black RS attire with the bits it's needs from number 1, now where is my hammer screwdriver and adjustable spanner...........
You'll never make a mechanic where's the cold chisel?


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

11Back to top Go down    Re: White smoke on Sat Oct 21, 2017 7:02 am

Dai

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You've all got it wrong. What you need is the old Triumph Tool No.1 - a BFH.


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

12Back to top Go down    Re: White smoke on Sat Oct 21, 2017 7:48 am

Garyk100

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You guys with ya fancy tools, bloody luxury, when I was young un riding a postie bike, dads toolbox had a double ended screwdriver(high tech in its day) 8" adjustable wrench and a brick,


__________________________________________________
The early bird catches the worm, but the second mouse gets the cheese

1991 K100rs16v
1993 K1100LT
    

13Back to top Go down    Re: White smoke on Sun Oct 22, 2017 11:13 am

92KK 84WW Olaf

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@Garyk100 wrote:You guys with ya fancy tools, bloody luxury, when I was young un riding a postie bike, dads toolbox had a double ended screwdriver(high tech in its day) 8" adjustable wrench and a brick,

Why complain about progress....you are now riding the brick........

And I heard a kid recently say he was listening tomusic on the wireless..........


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1992 K100LT 0193214 Alaska Blue 101,000 miles
1984 K100RT 0022575 Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Mystic Red 58,645 now 69,000 miles
    

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