BMW K bikes (Bricks)

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601Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Jan 09, 2020 11:49 am

Two Wheels Better


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83-84 engine cleanup  - Page 13 20200110
I've used this ring compressor successfully in a variety of bore sizes for many years, though in the 'olden days' I wasn't too far away from a coupla thin strips of plastic or ice cream sticks set opposite one another to ease the piston & rings into the bore.

    

602Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Jan 09, 2020 2:05 pm

MartinW

MartinW
Life time member
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I've successfully used thin plastic (food containers/ ice cream) or cut down food /drink cans in conjunction large worm drive hose clips  with plenty of lubrication.
Regards Martin.


__________________________________________________
K75s Hybrid
    

603Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Jan 09, 2020 2:28 pm

Dai

Dai
Life time member
Life time member
Too complicated for me. I'll stick with two screwdrivers and a pair of thumbnails.


__________________________________________________
'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
    

604Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Jan 09, 2020 4:58 pm

Rockman

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I've used a hose clamp with success on several R series motors. The wide ones just cover all 3 rings.

    

605Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri Jan 10, 2020 3:02 am

charlie99

charlie99
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cheers guys , all good suggestions

the problem im having is locating the pinned rings whilst clamping up the device .a progressive clamp process will let me do that , instead of a clamp designed for minimum of 75mm  (the pistons are about 66mm )

ill get the right thing ,in time

meanwhile, all silicon coated surfaces have been cleaned up and ready for a new reassembly .

one lives in hope ....


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

606Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri Jan 10, 2020 3:51 am

MartinW

MartinW
Life time member
Life time member
Try clear plastic with hose clips.
Regards Martin.


__________________________________________________
K75s Hybrid
    

607Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Sat Jan 11, 2020 12:17 am

charlie99

charlie99
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Smithy dropped by with a certain tool


my what a difference that made
likely less than 5 minutes per piston ,  now home and clean , ready for the next bit

thanks Craig , bloomin awesome

83-84 engine cleanup  - Page 13 20200113


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

608Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri Jan 17, 2020 5:26 am

charlie99

charlie99
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woohoo !  got some parts from blighty

namely:- head gasket and small end  output shaft bearing and running shaft

going together

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83-84 engine cleanup  - Page 13 20200119


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

609Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Sat Jan 18, 2020 4:21 am

charlie99

charlie99
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pretty much back together

to fit up to the frame , oils and tlc till she purrs again

83-84 engine cleanup  - Page 13 20200120

83-84 engine cleanup  - Page 13 20200121


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

610Back to top Go down   83-84 engine cleanup  - Page 13 Empty engine clean, actually born again bike on Sat Jan 18, 2020 5:13 am

daveyson

daveyson
Life time member
Life time member
83-84 engine cleanup  - Page 13 723598


__________________________________________________
11/1985 bmw k100rt (late model)  Vin. 0090567
    

611Back to top Go down   83-84 engine cleanup  - Page 13 Empty hopeful wishes on Sat Jan 18, 2020 5:34 am

caveman

caveman
Silver member
Silver member
I tip my cap to you sir! You patience, attention to detail, and persistence is unbelievable.

I have never bin deep inside a brick engine. Are the piston rings pinned or have any crazy orientation being a horizontal stroke?

    

612Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Sun Jan 19, 2020 3:29 pm

Two Wheels Better

Two Wheels Better
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Good going, Chazza! I look forward to hearing it purr to life and catching up with you down the road in a coupla months' time.


__________________________________________________

"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts."

Arthur Conan Doyle
1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - all of the Beemers in my life I can recall, owned still or sold on.
    

613Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Tue Jan 21, 2020 6:37 am

charlie99

charlie99
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@caveman wrote:I have never bin deep inside a brick engine. Are the piston rings pinned or have any crazy orientation being a horizontal stroke?

it seems there were some changes ..likely after 1988 ...I have an 88 motor here ,likely from an LT , with the same pistons etc as the 86 variants (first real change to a few things internal and external like foot plates , drive shaft etc )
the motor I used from Rickg has different piston design , including a thinner first compression ring , and pinned second compression ring , approximately the same size in thickness ,  some folklore also indicates that the pistons in the redesign were a little lighter as well . cant be sure on that one at this point , as I didn't do a weight comparison ....bugga ....  but ii did notice that the balance holes (taken out of the crank ) seemed to be less in number and depth ...this could just be a particular crank balance thing , but surmising that there may be some compensation for the engineered expected weights of the piston gear as well ?

you have to remember that after 88 the k100 rs also sported 16 valves ...but in a parallel production path  lt versions - 8 valve rather than 16 valve .. were still being made

 in any case assembly of motor to frame went well , and quickly

with cables, fluid pipes final drive etc all done by days end , ready for a start , which I postponed until the next day ,with just battery and efi computer to connect up

I chose to not use the  starter motor relay for the initial start as I thought the stalled (and relatively tight big end bearings ) torque of the motor to turn it over would be significant and could possibly weld the starter relay .
a very thick cable was attached to the starter motor with direct battery connection (by hand ) attempted . this way I could run the fuel pump continual till I was assured fuel pressure was sufficient ..
amazingly after just 3 attempts he fired up ....note a dry sprag clutch was causing concern with it not engaging at all for several attempts ...but on rotation of the motor ..at last on the third attempt he fired right up ....lots of smoke from build lubrication eventually cleared

an engineering ride around the area on some of the back roads today had me cruising at a little under 3,000 revs for a few hours , just to make sure that the engine crank and conrod parts bedded in somewhat

final panel parts to attach , fairing lowers and radiator cover , knee pads etc  to go on tomorrow after todays success

keep in mind there are three items that haven't run together in the same engine before , output shaft , sprag clutch mechanism , and the crank output gear , so hoping that they will wear to each other over coming days and miles travelled  for a quieter sounding motor

first impressions .....sweet !

83-84 engine cleanup  - Page 13 20200122

83-84 engine cleanup  - Page 13 20200123


83-84 engine cleanup  - Page 13 20200124


thank Darren ...looking forward catching up ...be safe till then ol mate


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

614Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Tue Jan 21, 2020 10:59 am

Point-Seven-five

Point-Seven-five
Life time member
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O-o-o-o-o-h Nice!


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

615Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Tue Jan 21, 2020 3:55 pm

MartinW

MartinW
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Life time member
:1B:Looking goooood.
Regards Martin.


__________________________________________________
K75s Hybrid
    

616Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Tue Jan 21, 2020 4:19 pm

Stan

Stan
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A great result Charlie. Amazing how the insides of the engine vary, depending on when it was manufactured. Having had a 83 and a 87 K, sitting them next to one another, the number of changes were incredible. Now we know a bit more about the insides.


__________________________________________________
1983 K100 basic vin 0003960 colour red  GONE
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
F800R black
    

617Back to top Go down   83-84 engine cleanup  - Page 13 Empty 83-84 engine cleanup on Tue Jan 21, 2020 9:02 pm

Tom KSR

Tom KSR
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G'day All, Charlie, keep up the amazing work.. The bitsa looks fantastic.
Cheers
Tom


__________________________________________________
1986 K100RT Ex Police (Slightly modified)
2010 BMW F650GS Twin
1992 R100R
    

618Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Wed Jan 22, 2020 3:55 am

charlie99

charlie99
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cheers guys ...thanks for commenting

its a bit hard to even wash FRED with current water restrictions ..(level 5 here - emergency)

meanwhile the engineering ride took me east yesterday , and in amazement the dried up creek beds  that I have been seeing for the last 12 months , actually have some water in them ...at last ...yippee ...lets hope there is some follow up in the coming weeks


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

619Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Wed Jan 22, 2020 5:14 am

caveman

caveman
Silver member
Silver member
Good to hear! FRED lives!

    

620Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Wed Jan 22, 2020 6:10 pm

Two Wheels Better

Two Wheels Better
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@charlie99 wrote:83-84 engine cleanup  - Page 13 20200124


thank Darren ...looking forward catching up ...be safe till then ol mate
Charlie,
Ol' Ferdinand is looking good! Is this piccie at the Bingara Lookout off the Copeton Dam Road?


__________________________________________________

"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts."

Arthur Conan Doyle
1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - all of the Beemers in my life I can recall, owned still or sold on.
    

621Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Wed Jan 22, 2020 8:23 pm

charlie99

charlie99
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no , this was at a small lookout above Emmaville  north of Glen Innes ,  the background was particularly pleasing with some greenery in the scene

we were through there a few weeks ago travelling towards Torrington , and the land was mostly dust , still haven't washed Gerty since , other than parking her out in the rain this week ...yeah a sorry state of affairs  but  once fred is proved reliable , Gerty is in for some tlc to the output shaft and gearbox


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

622Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Jan 23, 2020 5:44 am

Woodie

Woodie
Life time member
Life time member
Great to see Fred back in the game Charlie!


__________________________________________________
1985 K100RT
52667
"Keep your stick on the ice.  We're all in this together."  Red Green
    

623Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Thu Feb 20, 2020 11:24 pm

charlie99

charlie99
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just an update

leg is healing from the Gerty drop event on the way to Karuah river rally

still 5 weeks to go in the moon boot

input to gearbox bearings were too tight and made some noises , so stripped it out and replaced , with hopefully good preload this time

Fred back together  and ready to rumble over to the Delungra bike show this weekend

yes walking stick is attached ,, well I cant walk without assistance eh ?!!!

83-84 engine cleanup  - Page 13 20200213


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

624Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri Feb 21, 2020 1:18 am

Stan

Stan
Life time member
Life time member
You don't need the rear brake anyway Charlie. Good luck with the ride. Wink


__________________________________________________
1983 K100 basic vin 0003960 colour red  GONE
1987 K100RT vin 0094685 colour, orange peel, sorry, pearl..GONE
F800R black
    

625Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri May 15, 2020 9:01 pm

charlie99

charlie99
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VIP
seeing that everything is in lockdown

decided to chase vibration whilst at cold idle on Fred ,
83-84 engine cleanup  - Page 13 20200421

I don't remember having the stop disc installed to the output shaft - clutch basket during the last engine rebuild ,,,and the one I found on an old clutch basket assembly is cracked ...blast !

83-84 engine cleanup  - Page 13 20200420

oh well , brass came to mind for fabrication ....so several weeks later a piece of brass turned up (100 x 100 x 1 mm)

over to a mates workshop and onto his new to him lathe

producing this , one for Gerty and one for Fred  alongside the original article (cracked )

83-84 engine cleanup  - Page 13 20200510

wont be long and ill have it installed , but pity the mail was so slow getting here , oh well

being experimental id expect that some fretting could happen over time with the movement of the two assemblies
but definitely worth a try .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

626Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup on Fri May 15, 2020 10:27 pm

88

88
Life time member
Life time member
Jeez that view of the engine rear looks familiar  Very Happy

Hope that works well for you it'll be a great fix if it does


__________________________________________________
83-84 engine cleanup  - Page 13 Ir-log11 88....May contain nuts!83-84 engine cleanup  - Page 13 Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

627Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup Yesterday at 5:45 am

charlie99

charlie99
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been a while with Fred off the road , but today reassembled the rear end , and now looking far more like a bike again .

83-84 engine cleanup  - Page 13 20200512

startup noise was greatly reduced with little or no noise evident from flogging of the output shaft mechanisms


a quick ride around the block a few times shows promising results as well



ill have to put some miles on the beast locally before attempting a good long distance venture , but sounds and looking good so far


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O83-84 engine cleanup  - Page 13 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 ..
    

628Back to top Go down   83-84 engine cleanup  - Page 13 Empty Re: 83-84 engine cleanup Yesterday at 7:33 am

Arlina

Arlina
Life time member
Life time member
Nice job again Charlie Smile

Still gonna put some BMW badges on Fred?


__________________________________________________
83-84 engine cleanup  - Page 13 Eu-log10  K1100RS/LT - R1200RT - R1100RS (RIP) - Cagiva SST 350 Ala Verde
    

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