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[T3] Timing Type 3 w/ 009 and twin carbs!


Hello all - I am usually a regular bug guy but my neighbor has a '72
fastback automatic he needs some help with.  The deal is it's the original
engine as far as we can tell - he has service records for it, and the car
only has about 70k miles anyway.  He got it last year, the FI was having
problems, a friend of ours put on twin carbs - I don't know exactly which -
and a 009 dist.
Yesterday I was helping change spark plugs and suggested we check the
timing.  I got my timing light and we fired it up...couldn't see any timing
marks thru the little hole.  When we took the cover off the gen pulley we
could see in from the side and the timing marks were way advanced - at
around 950 rpms idle it was like a good 30 degree BTDC.  Revving the engine
advanced it even more.  I checked the dwell - 60 degrees which is much
higher than a stock bug (48-52 degs at idle).  The car was set up and timed
"by ear" by said friend.


I have no experience with dual carbs or a centrifugal advance dist.  Should
the timing really be that far BTDC?  What is the correct dwell for this
dist?  The car is reliable but runs kind of rough.  He's never checked valve
clearances since buying the car, I made an appointment to go over to his
place in the next week to do that.

My questions - how do we set timing?  What is the correct dwell?  Thanks.

Charlie
Houston TX
'66 Bug "Whitey"


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