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1Back to top Go down   Exhaust valves - How bad is this? Empty Exhaust valves - How bad is this? on Fri Oct 10, 2014 7:12 am

Holister

Holister
Life time member
Life time member
Finally got around to checking my valve clearances today.
It looks like my exhaust valves are way too tight. 

Intake 0.18   0.18   0.18   0.16 
Cylinder     1   2   3   4
Exhaust 0.15 0.12  0.18  0.25

How bad is this?


Where's the best place to buy shims?


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

2Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Oct 10, 2014 7:51 am

RicK G

RicK G
VIP
VIP
You may be able to get some to swap at a Kawasaki dealer. The KLRs have same and the old Zs as well. Some will swap for a few dollars. Precision shims in Brizvegas can supply 29mm among many other diameters.
I have a lot of 250s and a few others (always seems to happen) and will be ordering some for the K75 soon from Motobins.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

3Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Oct 10, 2014 8:37 am

Holister

Holister
Life time member
Life time member
Thanks again Rick. How is this normally done? I guess I need to remove the shims first to measure them to work out the new shim size? Any other considerations?

The exh. clearance on 1, 2, & 3 seem extremely small. Will I get a small enough shim in there to bring those back into spec.? BMW shims only go down to 2.0. Can you use thinner? I see Precision Shims go down to 1.4

I should've waited till I got a removal tool before I pulled the cover off. Rolling Eyes


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

4Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Oct 10, 2014 9:17 am

RicK G

RicK G
VIP
VIP
Those clearances aren't too bad for a while but don't go under 2.00mm or the lip of the bucket touches the cam. The Kawasakis can go down to 1.8mm.
record what sizes are where so that when you do need to change one you can get one without removing it and you know if it is changing rapidly and take action.
Use a micrometer not verniers to measure the shims as most of the time the size is long gone and the shims wear in the centre more and a vernier wont measure it correctly.
when you install the shim always install worn side to the cam or they can crack if there is more than 0.25 thou dish.
If you do detect any dish then give it the flick.
Some of the Yamahas had 29mm shims but with a chamfered edge, I am wary of using them in a BMW because the cams wear right to the edge of the shim and I'm not sure of how the cam would like the chamfer. Also don't try to resize a shim because if the two sides aren't parallel it sets up some strange wear patterns.  Don't ask
I am not sure but I think some of the Toyotas had 29mm shims but be careful as many have 29.5mm


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

5Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Sun Oct 19, 2014 3:28 am

Holister

Holister
Life time member
Life time member
I have the valve tool on order from Kenneth Lively in the US so should be able to get that sorted over the next couple of weeks. Thanks for your help Rick. Very Happy


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

6Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Sun Nov 09, 2014 7:42 am

Holister

Holister
Life time member
Life time member
Valve tools arrived from Kenneth Lively in the US this week and managed to get my shims out to measure up. I thought that with the exhaust clearances way out I might have little latitude to adjust but there's no problem. Its all within tolerances of the shim. Have ordered shims from Precision Shims in Vic.

Details for purchasing the tools below



TOOLS AVAILABLE 
1.  "Valve Adjusting Tools" - for the BMW 2 valve “K" engine. $29, S/H included
 
2. “Clutch Pilot” - for the BMW 2 valve "K" engine.  $23.00, S/H included                                               
  
3. “Clutch Pilot” - for the BMW “R1100 Oil Head” engine. $23.00, S/H included
                              
TOOL DESCRIPTIONS  
1.     “Valve Adjusting Tools” for both K75 & K100 are 2 pieces made from 3/16”     
      Laser cut steel. Working contours are identical to factory tools. "Valve  
      Adjusting Tools" are new, steel, w/ instructions. 
“Valve Adjusting Tools” for BMW 2 valve "K" engines are $29, S/H included.
 
2.        “Clutch Pilot” for both K75 & K100 new, from steel, w/ instructions.
        “Clutch Pilot” for BMW 2 valve “K” engines are $23.00, S/H included.
 
 3.    “Clutch Pilot” for BMW R1100 Oil Head new, from steel, $23.00, S/H included

For Picture of Tools   
         go to Yahoo "Flickr":
 
Tools available
http://www.flickr.com/photos/41449418@N08/sets/72157632081388219/
 
Valve tools in Use 
 http://www.flickr.com/photos/41449418@N08/sets/72157632085640060/
 
Other parts that have been made
 http://www.flickr.com/photos/41449418@N08/sets/72157632254450590/
 
Or investigate the entire photo stream.
   
http://www.flickr.com/photos/41449418@N08/        
 
For a video to see the valve tools in use,
https://www.youtube.com/watch?v=yUxkv08XwH0
 
 
NON USA CUSTOMERS
Reply for shipping costs please.
 
MADE IN AMERICA
See attachments for pictures.
 
PAYMENT:
Cashiers Check, Money Order or Personal Check are welcome. Please make checks payable to “Kenneth Lively”.
“Pay Pal” accepted. Please apply “Pay Pal” to:  polepenhollow@yahoo.com
Parts will be shipped within 24 Hours of payment received, or “Pay Pal” is posted.
 
Thanks, Good Luck and Good Riding.
 
Kenneth Lively


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

7Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Mon Jan 19, 2015 3:39 am

Holister

Holister
Life time member
Life time member
Just to close the book on this one. Finally got around to replacing those shims ordered from Precision in Melbourne. Excellent service. Exhaust valve clearances now within spec and engine now runs totally smooth with no popping or backfire, easily revs out and noticeably more power. The big payoff is my fuel consumption has dropped dramatically from an eratic 6.5 to 8 lit/100km down to a constant 5.7 on my 2500km trip over Dec-Jan cheers


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

8Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Mon Jan 19, 2015 4:11 am

werewasi

werewasi
Platinum member
Platinum member
good result.


__________________________________________________
K100RS  1983 and 1986 (bought a 2nd and put them both together in a dark garage thinking that i would get a heap of parts from the progeny but nothing happened- think they're gay)  Laughing Laughing Laughing

1985 K75, Guzzi V7 Special, 1986 GB500, 1974 T500, 1986 MB5 with the whoppa 100cc engine transplant, NC 700 SA Honda, two 1986 Kawasaki BR250s
    

9Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Mar 06, 2015 6:39 pm

floyd

floyd
Life time member
Life time member
hmmmm Im thinking back to when I did my shims and Im unsure if I followed all of Ricks advise above....  Embarassed

I get the odd back fire on hard deceleration and my fuel consumption is 6.45/100 at best....

Thats with all new rubbers in the system and no discernible air leaks anywhere...

Mind you I did have the covers off the other day and I checked the clearances and they were in spec....


__________________________________________________
K100 with lots of K1100 bits - mongrel of a thing...
    

10Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Mar 06, 2015 7:12 pm

charlie99

charlie99
VIP
VIP
tighten up the exhaust flange to header pipes ?   not too tight though its a copper ring type gasket and crush easy


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OExhaust valves - How bad is this? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

11Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Fri Mar 06, 2015 9:20 pm

Holister

Holister
Life time member
Life time member
+1 that charlie. They do need nipping up now and again, especially new gaskets.

I was getting a lot of very loud backfiring way back last year. Sounded like a rifle shot. I put in a new set of exhaust gaskets which cured the backfires but I was still getting the odd pop and crackle out the back. All reasonably quiet now tho after the valve adjustment.
Ultimately, backfiring and poping is a fuel mixture/timing problem.

Floyd, I had a leaking injecter a few months back which was contributing to my poor fuel consumption.  It was difficult to guage any difference after the injector clean as at that stage my fuel consumption was all over the place due to the poor valve clearances but I worked out it did improve by somewhere around 0.4 lit/100klm.


__________________________________________________

1989 K100RT     VIN No.  0097367 (naked)  
1996 K1100RS   VIN No.  0451808
  Exhaust valves - How bad is this? Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

12Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Sat Mar 07, 2015 4:21 am

Comberjohn

Comberjohn
Life time member
Life time member
That's a really good price for the shim tools.
Motorworks are charging £43.50 for theirs. $60-70?
Have to look into that. Even with the postage, it's still a lot cheaper.
Good advice on the shims, Rick.
I couldn't get my LT to tickover properly until I did the shims. Just could get the TB's to sync correctly.


__________________________________________________
Life is not a rehearsal.
2010 VFR 1200F DCT 
2010 R1200GS(gone)
1986 K100 Silver(gone)
2012 K1600GT(gone)
1984 K100RT Madison Silver(gone)
1989 K100LT Stratus Grey(gone)
1984 K100 Red(gone)
http://www.johnsdrivingschool.co
    

13Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Sat Mar 07, 2015 12:29 pm

Dai

Dai
Life time member
Life time member
John - unless you want a set for yourself, I've just ordered the valve tools and the clutch centre tool. You're more than welcome to borrow them.


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

14Back to top Go down   Exhaust valves - How bad is this? Empty Re: Exhaust valves - How bad is this? on Sat Mar 07, 2015 6:06 pm

Comberjohn

Comberjohn
Life time member
Life time member
Thanks, Dai.
I'll take you up on your offer sometime. It's a job that's so rarely needs to be done but does make a difference to the running.
Been reorganizing my shed and going to start to take bits off.
I'll maybe pull the cam cover soon just to see how bad the settings are.
Must admit, I've been tempted to spend a couple of days doing a service and a bit of tarting up and putting it on the road occasionally this year. There's always next winter to do a rebuild.
Now that I think I've solved the cutting out issue, a dodgy immobilizer, it's seems unnatural to just let it sit there.


__________________________________________________
Life is not a rehearsal.
2010 VFR 1200F DCT 
2010 R1200GS(gone)
1986 K100 Silver(gone)
2012 K1600GT(gone)
1984 K100RT Madison Silver(gone)
1989 K100LT Stratus Grey(gone)
1984 K100 Red(gone)
http://www.johnsdrivingschool.co
    

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