R1100S winter tuneup
patrick@cape.com

Mill and lathe work, cylinder honing, cylinder head cleaning,
valve refacing, and spin balancing performed at:
All Cape Machine
157 Thornton Drive
Hyannis, MA
Phone: (508) 775-0623


28k mile input shaft

28k mile clutch hub

new clutch hub

23k miles later...

51k mile input shaft
note Honda moly 60 lube everywhere

happy intake valves! :)

unhappy exhaust valves :(

Hmm.. clutch housing looks warped

refacing an exhaust valve

much better

pressure plate warped

pressure plate de-warped

carbon after cooking with a cutting torch

happy exhaust valves! :)

baking soda blasted and washed

waiting for new rings

Hmm... 0.009" runout...

Yay! The crank flange is straight!

tooling marks on the shift star

tooling marks polished away

shiny shifty bits
polished the shift fork shafts and shift arm
also retensioned the follower arm spring

de-wobbling the clutch housing mounts on the flywheel

test indicator stand attached to crankshaft flange

front transmission case installed,
test indicator zeroed at 12 o'clock on
the input shaft front bearing bore

crank spun 90 degrees counterclockwise
the bearing bore is 0.0050" closer
to the crank centerline at 9 o'clock

crank spun another 90 degrees... 0.0100" closer
to the crank centerline at 6 o'clock

crank spun another 90 degrees... 0.0035" closer
to the crank centerline at 3 o'clock

Back to zero at 12 o'clock, so you know
nothing slipped. The input shaft rides
0.0050" high and 0.00075" to the right
in relation to the crankshaft.

centering off the dowel pin bore

dowel bore in front case bored offset
0.0055" and oversize from 13.52mm to 14.90mm,
15.00mm OD bushing fabbed up, press fit
and Loctite 640 to hold it in place

bushing pressed in place, boring inside
diameter to 13.52mm

both dowel bores offset and bushed to size

closer shot...

and closer...

zeroed at 12 o'clock

-0.0009" at 9 o'clock

-0.0006" at 6 o'clock

-0.0001" at 3 o'clock

back to zero at 12 o'clock
input shaft is 0.0004" to the left of
and 0.0003" under the crankshaft

Flywheel and clutch mounted to a VW Golf
crankshaft for spin balancing. (I didn't feel
like taking the crank out of the bike...)

spin test

left piston is 426.5g

right piston is 424.2g

baby gots junk in the trunk

"Get me a beer while you're up!"

losing weight is hard
424.7g... half a gram tolerance it is

popped the seals off the bearings...
not much grease left in there

that's better :)

good as new(ish) ;)

new splines vs. old splines

all the bits are cleaned up and ready to go

so shiny!

front case took a detour through the oven
for a bit so I could slip the bearings into place

rear case visited the oven too
all buttoned up

hey, what's this extra gear I have left over...
ah, probably don't need it *toss*

prepping the valve seats

with a wee bit of port work

just a light swipe with the die grinder...

manual says "always install right cylinder first"
okay, sure... piston and cylinder installed

head all clean and spiffy, ready to go

almost done, valve gear installed and
verifying accuracy of TDC mark on flywheel