HI Jeff:
I'm no mechanical expert or wizard but do perform some of the work on my '69
TR6 myself. This spring I wrestled with what were similar problems with my
car after I rebuilt the carbs. The car would run ok when cold but then
would cut out and run rough after warmup, no matter what I did to try and
remedy the situation; tune-up, timing, filters, hoses, and so on.
After taking the car to a great, local British car shop I found two primary
offenders: First, the chokes (starter boxes) were not closing completely as
I had placed the cables too high on the carb mounts. Secondly, the float
bowl vent on the front carb was plugged by a hardend substance in the
corresponding hole in the air filter backing plate. Try running the car for
a short while without the air filter in place. This may help to further
diagnose your problems.
Also, what do the spark plugs look like after running the engine? Black and
sooty; fuel/air mixture too rich, White; too lean, Tan and even-colored; ok.
Are you blowing black smoke out the exhaust and can you smell rich,
unburned gasoline while the engine is running?
Good luck and best regards,
Walt Fogle
'69 TR6, CC30689L
Woodinville, WA
Jeff wrote:
>
>Well Gang,
>I'm about to give up and seek a professional. I'm at a lose on what is
>wrong
>with my 74 TR6. It has had a problem all summer long I can not locate.
>I'll
>work on it for a few days and then quit for a few weeks thinking it will
>come
>too me but has yet to do so.
>
>It will start up and run for about 10 minutes or so and when it gets up to
>temperature it cuts out and quits. the correct running time varies from
>each
>time I have tried it. I have manage to limp it home every trial run I've
>made
>but this last time it almost didn't restart at all after quitting.
>
>I have done a number of different things that others have suggested but
>none
>of them have produced any different results. Here is the list of things I
>have done trying to eliminate the problem.
>
>#1 Replace the ignition system with an electronic system (Fireball from
>moss).
>#2 Eliminate the ballast resistor and up grade the coil.
>#3 Rebuilt the carbs
>#4 Rebuilt the fuel pump.
>#5 Replaces all rubber fuel lines and replace the fuel filter.
>#5 Check and replaced most of the emission system egr lines and check for
>leaks.
>#6 checked the reassembly of the distributor.
>
>
>I do not know what to do next. Here is a list of things I have toyed with
>in
>my mind that might be wrong. Maybe this will give someone an idea what the
>deal is.
>
>#1 Improper carb rebuild..
>#2 Manifold leak noticed only after the car gets warm.
>#3 Incorrectly working egr valve.
>
>
>any ideas might be a help. The car has been doing this since the spring
>and I
>have had a busy summer thus no TR driving or time to work on it. I have
>had
>the car apart and it has only been back together for about 300 miles and I
>have not been able to enjoy it at all.
>thanks
>Jeff Slaton
>Murray Kentucky
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