The following link contains detailed instructions from VTR. IMHO, the
Uni-Syn tool (available from usual Brit car suppliers) is indispensable. And
yes, if you've had the throttle interconnect linkage off, it's almost
certain that the carbs aren't synchronized.
Another thing to check is the carburetor diaphragms, especially if they're
old - if one or both have holes or tears you won't get much power.
Replacements are cheap.
Graham
http://www.vtr.org/maintain/carbs.html
-----Original Message-----
From: Kronberg, Peter [mailto:Peter.Kronberg@hp.com]
Sent: Friday, April 25, 2003 11:23 AM
To: 6pack@autox.team.net
Subject: How to sync/tune dual Strombergs?
Hey Everyone,
Well, I got my '76 fired up for the first time yesterday. Mind you, I've
installed a Pertronix Ignitor and had both carbs removed to replace float
bowl plug O-rings. I have to say, she idles fairly well. However, under
load...no power. The acceleration response is..."sputtery". Now, as I've
mentioned in earlier messages, I think my dizzy may have rotated on me
slightly, so I'll be checking ignition timing next. 4deg ATDC, right?
Bentley mentions a micro-adjustment nut for minor timing tweaks, but I can't
seem to find it in any exploded parts diagram. So...I guess I'll be
resorting to loosening of the clamp, and rotating the housing/shaft. Which
direction of dizzy rotation will change timing closer/away from TDC? Do my
symptoms suggest that this is likely to be enough of a factor, or should I
then move on to carb syncing/tuning? Here's where things get sticky... I am
looking for a cookbook set of procedures for syncing my carbs. I've had the
throttle interconnect linkage off, and I suspect that I need to synchronize
them, at least. I never messed with the dashpots, diaphragms, needle valves,
etc so I'm hoping I don't need to mess with mixture.
The frustrating thing is, there is TONS of info on rebuilding carbs, but
sketchy info on syncing / tuning. I checked the archives, but got no hits.
Please advise, and thanx in advance from the bottom of my sump.
Pete
'76 CF51563U (TRYin' to mo'tate...)
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