Topica Loopframe_Guzzi Archive


Subject: RE: distributor timing

Author: joe jump

Date: Apr 1, 2004, 7:12 AM

Post ID: 1716452392



Rob,
I don't think you would be considered a cobber if you ground
down the cam lobe that was early. I've seen the procedure recommended in
a BMW motorcycle tech manual, although they recommended using an oil
stone. I see the same thing on my /5 as you saw on your Loop, and also
on my Loop engine, although I don't think it's 8 deg delta between the
two. Where did you get the spot-on point cam?

Hey Corntown, ya listenin'? Yea, that's right; I got my engine
running and it's ready to roost the Popsicle, just like when my Sport
ate up that Yellow thang you rode to Mid-Ohio last year!


Rob Prins wrote:
 
I initially thought that it was just worn funny so that the difference
in timing occured. However, since no one else seems to have ever run
into this I'm willing to believe it was "born" that way. Actually, this

makes me feel better since I can assume that my new one won't eventually

wear into a similar pattern.

At the risk of being outed as a potential "cobber" of Guzzis, I had
considered modifying the points cam with a grinder/file/emory cloth to
try to even out the timing.
Rob

Patrick Hayes wrote:
 
One set of points, but two lobes on the distributor camshaft which lift
or
open those points to create spark for each cylinder. One of his
distributor
shaft cam lobes was obviously machined incorrectly and has been
generating
this error since day one. I can't believe such an error came from cam
wear.
Hard to believe that such a machining error got past the QC folks. :-)

Patrick Hayes
Fremont CA
MGNOC L-403
AMA
EV, SPII, Centauro, Monza, SuperAlce



Joe in St Louis

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