Dennis:
1. Clogged air filters
2. Throttle linkage loose on one carb - car runs on one carb only.
3. Vacuum retard engaged or stuck all the time (If you have it hooked
up)
4. Mechanical timing advance linkage binding in the distributor - no
timing
advance at high RPMs.
5. Clogged exhaust system (Muffler collapsed internally, exhaust pipe(s)
deeply dented or kinked)
6. Cam timing wrong (timing chain jumped a tooth or two)
7. Cam lobe failure - one or more lobes have gone flat
8. Head gasket blown (often, but not always, accompanied by
overheating).
9. Ignition timing massively retarded (dizzy is loose = slipped timing).
Etc....
Others have suggested fuel starvation perhaps from a clogged filter,
but I
would expect the engine to display other symptoms like missing, etc, if the
mixture was going lean due to a clogged fuel filter. That is just an opinion
on my part however as I have never experience that particular problem.
Vance Navarrette
Cogito Ergo Zoom
I think, therefore I go fast
-----Original Message-----
From: 6pack-bounces@autox.team.net [mailto:6pack-bounces@autox.team.net] On
Behalf Of dctr6@optonline.net
Sent: Friday, May 08, 2009 8:13 AM
To: 6pack@autox.team.net; triumphs@autox.team.net
Subject: [6pack] TR6 - Help Wanted
<snip>
The car starts and idles fine, and runs in the low revs OK but will not run
over 4000 RPM. It just seems to choke - it made the long hills on I-81 in
Pennsylvania a real chore - I'd get going 75-80 mph at the bottom of the hill
and would barely be doing 55-60 at the top - it just wouldn't go any faster.
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