[6pack] TR6 Plugs Carbon Fouled

[James_]

Not sure if this helps or not... but for years I had to play around with the choke to keep the engine from dying.
Even after rebuilding the carbs and I think I even took it to a shop for adjustments.
Then, during a complete carb rebuild and thorough testing I discovered one of the temp comp. was stuck. I had a spare (they are now available new at Moss, but not at the time) and it made my car run like a champ!
FYI,
To check those buggers, you have to use hot water and a thermometer.

But maybe you have other issues. Or several. It is maddening for sure.


On Dec 26, 2017, at 3:26 AM, daybell7--- via 6pack <6pack at autox.team.net<mailto:6pack at autox.team.net>> wrote:

Thanks,  What can I do?  I’ll try leaning in out and a hotter plug (12 series).  Add upper cylinder lubricate?  I did a compression test (1-6 cylinders): 103,105,100,125,120,75.  Number six with a squirt of oil read 85.  It runs strong otherwise, but needs the choke to start.

I haven’t adjusted the valves.  I think it just needs cleaned out and run to be reliable.  Thanks again.
Steve Hughes

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next time before starting but after sitting , pull a plug or three and check for oil soak . you may have leaky valve seals . ask me how i know . . .
                                           ztr6

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My 73 has HS6 carbs.  I need the choke to start, but once started I can relieve the choke immediately.  The problem is the plugs foul quickly.

As long as I run the car, the plugs don't foul.  I think it's just the startups and not running the car when I move it around in and out of the garage, etc, that causes the carbon to build up.

Should I lean the carbs more?  I always thought the choke should be relieved gradually until the car warms up.  Do I need a mixture meter?

Thanks,
Steve Hughes
Gainesville, FL





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