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Final adjustments 54 tea 20 85

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glen Ontario

06-06-2003 16:56:56

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let me know if this sounds right valve tappits 10 thou for intake 12 thou for exhaust ,Ignion points T D C at 20 thou ,spark plug gap? good question not shure . carberator 24t-2 top screw 1 and a half turns out big one 2 turns .Let me know if I am missing something thanks

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john(UK)

06-07-2003 05:17:29

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Re: final adjustments 54 tea 20 85 in reply to glen Ontario, 06-06-2003 16:56:56

Valve clearances ok as you say.
Distributor points .015"
Carb. Main jet 2.5 out turns to start with, then with engine on full throttle screw in till engine starts running rough then unscrew till it runs evenly.If you work tractor hard and it seems a little short on power unscrew half a turn to compensate, but for the sake of economy, screw it back in when you finish the heavy work
Top Screw (air) 1.5 turns out. at idle speed screw it in till engine runs rough again then unscrew till it runs evenly.
When you screw either jet needles in DO NOT OVERTIGHTEN (there is no need for that) as there is a chance you may break the end of the needle off.
All carb adjustments should be carried out at working temperature, dont have the engine speed set too low when idling, adjust throttle stop on carb to about 500rpm (not critical)
Spark plugs .025" for petrol engine use.

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Al in BC

06-06-2003 23:05:53

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Re: final adjustments 54 tea 20 85 in reply to glen Ontario, 06-06-2003 16:56:56

Glen. Your right on most settings. The timing is 1 deg. BTC contact breaker gap 014-016". Carb setting is 1 turn out on main jet from fully closed, 1-1/4 turn out for maximum power ( the bottom 3/4" headed one with the rivet head at the edge). The top screw is for mixture and should be set so that the neither hunts nor dies. Start at about 2-1/2 turns and go from there. Do this setting only when you are up to temperature.

Hope this is of help.

Al.

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glen Ontario

06-07-2003 15:09:26

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Re: Re: final adjustments 54 tea 20 85 in reply to Al in BC, 06-06-2003 23:05:53

Thanks Al and John , I will use this info and with luck have it running with sadifaction I brought this old tractor back from the dead every body thought I was out of mine and it would never run this maid me more detetmined to do it

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Bill

07-30-2003 14:36:07

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Re: Re: Re: final adjustments 54 tea 20 85 in reply to glen Ontario, 06-07-2003 15:09:26

Glen:

Read your note and thought maybe you could help me. Did you have to rebuild/replace the carb., if so where did you find parts?
I have a TEA20 that needs the carb rebuilt or replaced, but can't find kit/parts any place.

Bill

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Andy

09-20-2003 02:14:54

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Re: Re: Re: Re: final adjustments 54 tea 20 85 in reply to Bill, 07-30-2003 14:36:07

Bill,

if you still need carb parts try a UK spares supplier - I bought a rebuild kit for my carb (spindle, bushes, gaskets etc) and it would mail very easily (all parts are small/flat).

Andy

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