Topica Loopframe_Guzzi Archive


Subject: RE: loose distributor gears, T distributors

Author: joe jump

Date: Jun 16, 2005, 9:18 AM

Post ID: 1719030502



Fred,
Thanks for your insight. I believe my gear is tight on the
shaft, but I'm thinking that the gear is not in the correct position in
relation to the drive gear on the camshaft, yielding excessive backlash.
Haven't had the time to dig into it yet (working hard on home renovation
to get a kitchen pass for VMD), but it seems to me that if the dist
dropped down a bit farthwer into the case that the backlash might go
away. I have the old 850T distributor and I may end up dropping that
back in, but for now I'd like to retain the agricultural-looking single
point unit.

Don't think you'll have any problems putting a T dist into a T3 - I
presume you're doing this for the diffent advance curve?



Joe in St Louis
850T-Powered Ambo
"Junkyard"

Fred Sahms wrote:
 
When I timed the T3 the last (with a timing light) time I noticed the
timing was jumping around a bit, and I don't think it's the timing
chain, as it's got maybe 10,000 miles on it and has the later OEM spring

tensioner.

The bike felt a little odd as well, feeling flat off idle and then
getting noticably better at maybe 2500-3000 rpm (a recent sensation).

On of the little weights was a little sticky, and the gear on the end of

the distributor shaft had some play.

I cleaned and lubed all the weights and pivots and peened the pin that
holds the gear on with a center-punch. The play is gone, and I'll time
it with the light tomorrow after re-assembling and static-timing
tonight. I hope it goes back to feeling sweet.

btw, I have two spare 850 distributors, and both have loose gears as
well, one much worse than the other. Has anyone just swapped a T
distributor into a T3 (actually the motor in the T3 is a CX100 motor)?





73 Eldo
78 T3/949

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