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by wdietz186
Sat Aug 11, 2018 4:37 pm
Forum: Wheel, Brake & Tyre Shop
Topic: Drum Brake sprocket carrier re-assembly
Replies: 8
Views: 259

Re: Drum Brake sprocket carrier re-assembly

Well a Tiny bit o' egg on my face! been about 30 years since I've been in a drum rear hub/carrierassy.
by wdietz186
Thu Aug 09, 2018 6:07 am
Forum: Wheel, Brake & Tyre Shop
Topic: Drum Brake sprocket carrier re-assembly
Replies: 8
Views: 259

Re: Drum Brake sprocket carrier re-assembly

#25 is the spacer between the bearings in the hub,the stub axle that holds the sprocket carrier butts up to it when the wheel is installed.
by wdietz186
Wed Aug 08, 2018 7:21 am
Forum: Wheel, Brake & Tyre Shop
Topic: Drum Brake sprocket carrier re-assembly
Replies: 8
Views: 259

Re: Drum Brake sprocket carrier re-assembly

Neither the 750 or 860 parts manuals show a spacer between the bearings in the sprocket carrier. The bearings aren't pinched together when the axle is tightened because the spindle they ride on butts up to the the spacer in the wheel hub when the axle is tightened. The sprocket carrier floats on tha...
by wdietz186
Sun Jul 29, 2018 4:55 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Ducati 900 SS '82 | Front cylinder exhaust running hot
Replies: 9
Views: 526

Re: Ducati 900 SS '82 | Front cylinder exhaust running hot

If the wiring proves to be OK. try switching the Bosch amplifiers cyl. to cyl. As reliable as Bosch equipment seems to be, they are over 30 yrs. old and as we used to say in the old days "never trust anyone over 30". I've replaced about 4 of them in the past couple of years for various running issue...
by wdietz186
Fri Jun 29, 2018 6:21 am
Forum: Engine & Transmission Shop
Topic: Flywheel/clutch gear torque
Replies: 6
Views: 231

Re: Flywheel/clutch gear torque

Cross torquing the crankshaft can pull it out of true. Not so much the ign. flywheel as the taper fit doesn't need much torque to hold it securely(too much can damage the crank and/or flywheel)the but torquing alt. rotor holding the flywheel nut or torquing the clutch hub by holding the alt. nut may...
by wdietz186
Tue Jun 26, 2018 5:29 am
Forum: Wheel, Brake & Tyre Shop
Topic: set screw size for front brake lever on Darmah
Replies: 5
Views: 294

Re: set screw size for front brake lever on Darmah

That little allen head screw [set,grub?] in the lever is either 3 or 4 mm x .7 or .75 it's there to adjust the lever free play. Unusual for them to fall out as they are loctited in and hard to move without rounding out. It looks like the kit Craig shows includes it.
by wdietz186
Fri Jun 22, 2018 3:56 pm
Forum: Engine & Transmission Shop
Topic: Tab washer bender tool
Replies: 7
Views: 306

Re: Tab washer bender tool

I start by bending the tab slightly 180 deg. from the locating tab and usually use a pair of Channel Lock type pliers to pull it up to the flat on the nut after torquing.
by wdietz186
Tue Jun 12, 2018 7:47 am
Forum: Bevel Head Twins Photo Gallery
Topic: Finishing restoration on ‘74 GT750
Replies: 1
Views: 340

Re: Finishing restoration on ‘74 GT750

Looks mostly restored as it is! Should be an easy one.
by wdietz186
Wed May 30, 2018 5:44 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Do I need to change valve seats for lead-free gas?
Replies: 2
Views: 279

Re: Do I need to change valve seats for lead-free gas?

No, That issue related to cast iron valve seats. Ducati use a bronze alloy so no worries.
by wdietz186
Thu May 17, 2018 7:12 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Clutch basket bearings.
Replies: 6
Views: 530

Re: Clutch basket bearings.

It's been a while and I don't have one handy but I recall a shim or two between the bearings in the basket and only 1 locating lip in the basket. That might be the source of the play if the fit of the bearing isn't tight in the basket and the bearings aren't butted together with the hub tight. OR th...
by wdietz186
Mon Mar 19, 2018 6:10 am
Forum: Chassis & Suspension Shop
Topic: 860GTS into Darmah
Replies: 5
Views: 1108

Re: 860GTS into Darmah

The motor mount holes are in the same places. The only problem I can think of might be the motor mount plate at the left rear may not be relieved for the shift cross shaft lump on the back of the 76 engine cases. I'm going by memory here so I might be wrong. If the 76 has Bosch ignition it all shoul...
by wdietz186
Wed Mar 14, 2018 5:42 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Sync beavel gear
Replies: 17
Views: 1913

Re: Sync beavel gear

Magnus, You don' need to loosen the cyl. head nuts. the tube has clearance on both ends when the head is bolted down. Just turning the tube a bit each way usually does the trick. Others have cleaned around the base of the tube and the top of the bevel housing and smeared silicone sealer into the cra...
by wdietz186
Tue Mar 13, 2018 5:22 pm
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: SS desmo cams in GTS motor
Replies: 3
Views: 702

Re: SS desmo cams in GTS motor

They will physically fit but... The opening lobe is much thinner than the springer lobe and likely won't stand up to the loading imposed by the valve spring and the opening/closing events are rather sudden which in addition to wear would probably make a lot of noise. Also without having the pieces i...
by wdietz186
Tue Mar 13, 2018 7:06 am
Forum: Squarecase BOSCH Ignition Engines > SD, SSD Darmah, late 900 SS & 900 GTS
Topic: Sync beavel gear
Replies: 17
Views: 1913

Re: Sync beavel gear

What has worked in the past for me is turning the tube some to relax the o ring that has twisted slightly in its seat. This happens when the tube is pushed in and the ring catches on the tube and distorts allowing oil past. Turning the tube can be difficult due to the limited clearance but I've been...
by wdietz186
Sat Feb 24, 2018 4:30 pm
Forum: Carburettor & Fuel System Shop
Topic: 860GT intake manifold: stuck
Replies: 6
Views: 1091

Re: 860GT intake manifold: stuck

Try using a heat gun [or hair dryer] on it and get it really warm. Some gentle tapping around the flange might help too, but be careful the metal is pretty thin there. A twist and yank usually does it.

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