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Engine racing on TEA

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Jim W

05-11-2004 21:04:25

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After chasing down a hunting (surging) problem for a long time on my TEA I remembered that it started when I swapped carbs. So I took my old Zenith 24T2 apart, soaked it for days in carb cleaner, carefully made a new gasket, put it on, and no more hunting - voila!
Thing is, now the engine runs quite fast. I have to put the throttle way up at the top to even begin to slow it down.
I have tried the usual carb adjustments but no luck there.
So my question is (given that by now just about anything could be out of adjustment) is this likely to be fixed by adjusting the length of the rod from the governor to the carb, or do I need to adjust the nominal position of the throttle lever?
Thanks,
Jim

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James, UK

05-12-2004 04:18:35

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Re: Engine racing on TEA in reply to Jim W, 05-11-2004 21:04:25

Beware adjusting the length of any linkage on the throttle/governor settings - it is unlikely to help and will only further complicate things.

Follow the precise method for setting up the governor as set out in the Ferguson manual and you will fix the problem.

The governor linkage/settings are extremely sensitive, much more so than you would think.

Try setting the nominal position on the linkage by slacking off the U-bolt at the end of the horizontal throttle rod - near the radiator top and see if that helps. You might be lucky.

HTH

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Jim W

05-12-2004 04:35:38

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Re: Re: Engine racing on TEA in reply to James, UK, 05-12-2004 04:18:35

Too late! I replaced the clevis as the hole was worn to quite an oval, so it could be off already.
I will proceed as you suggest.
Thanks,
Jim

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James, UK

05-12-2004 11:40:27

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Re: Re: Re: Engine racing on TEA in reply to Jim W, 05-12-2004 04:35:38

In that case welcome to the same position I found myself in . . . . . . . it will take a while and require patience, but will be worth the effort.

Beware the 'bumper stop screw' adjustment on the timing cover (stops 'hunting' and is sensitive) and also the spring setting on the vertical rod coming up from the governor arm on the carb side of the engine - also very sensitive to adjustment and tweaks - get your feeler gauges out and save the beer and heartache.

Good luck - it will be worth it.

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Jim W

05-12-2004 12:53:41

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Re: Re: Re: Re: Engine racing on TEA in reply to James, UK, 05-12-2004 11:40:27

I will adjust the bumper stop screw only as a last resort! Things were OK before I started fooling around and so far I have not touched that, so am convinced this can be rectified without digging this hole deeper.
Thanks for the encouragement,
Jim

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