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Harry Ferguson Tractors Discussion Forum
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Ferguson TEA? Problem

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Estle Cloud

11-07-2007 15:51:34




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I am trying to repair a Ferguson S/N TEA292142 that will not start. I am assuming that this is a TEA-20 because only the 20 is the only one I found listed with a number that high, although the tag does not show the model, but it does indicate it was made in England. This engine has plenty of spark, and will not even start with starting fluid. Therefore, I earlier suspected a timing problem. The distributor rotor turns, but I think I have just discovered it has a timing chain by looking at the tractor parts listed at YTMAG since there is a chain and two sprockets listed for the English engine. This is my first time to work on a Ferguson engine so about any information will be appreciated.

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Mac Ricketts

12-10-2007 09:20:43




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
My TEA 20 would not start, I had good spark but it was not consistant, maybe one spark per engine revolution. I changed the condenser and she fired right up. I believe the condenser was slow to "cycle".



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John(UK)

11-08-2007 11:14:07




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
Have you checked that you have the firing order correct? It is 1/3/4/2, the distributor turns counterclockwise and the number one position, if it is fitted correctly, should be at the 10 o' clock position. To check if the distributor is fitted correctly, turn the engine over by hand with no plug in number one cylinder and not switched on. Put a finger over the plug hole and you should feel the compression against your finger. At that point, look at the distributor to see where the Rotor is pointing and that will be the position for the number one plug lead. That should get it going but it still may need some adjustment to the timing, if you need it, just email anytime....John

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Jeff-oh

11-08-2007 06:31:38




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
You state..."although the tag does not show the model" FYI the tag does say the model in the serial number... S/N TEA292142--- TEA is the model indicator. T- Tractor, E- England, Model Style A. A - is the Gasoline fueled Standard Motors Engine. -20 = 20 HP rated tractor.


A little history
Jeff



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Bob (Aust)

11-08-2007 00:50:33




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
Sorry - posted the wrong photo.

third party image

Timing chain and governor.



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Jerry/MT

11-08-2007 10:25:03




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 Re: Ferguson TEA? Problem in reply to Bob (Aust), 11-08-2007 00:50:33  
Bob,

Thanks for the shots of the Standard Motors engine. Not having any background with them, it"s nice to see some of their details.



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Estle Cloud

11-08-2007 05:02:17




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 Re: Ferguson TEA? Problem in reply to Bob (Aust), 11-08-2007 00:50:33  
Thanks to each of you for your responses. I doubt that I would have ever expected to see the TDC mark under the starter motor. The pictures will be a great help. To avoid possible damage I do want to resolve the timing issue before going much farther. And thanks for the parts source information.



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Bob (Aust)

11-08-2007 00:46:58




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
third party image

1/4" timing hole below starter motor. With the starter motor removed, flywheel timing marks also align with a notch in the hole for the starter motor.

third party image

Timing chain and sprockets.

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cdmn

11-07-2007 19:58:16




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
If you are going into the timing chain, be sure to take a close look at the governor. They have been known to come apart and bust up the chain and front cover. You can buy new ones cheap enough. Front covers cost a lot.
By the way, the chain and seals and gasket are stocked at your AGCO Massey dealer. Same as MF35FX tractors, which were meant for Europe, but apparently a few parts are sold in the US.

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Bob (Aust)

11-07-2007 19:29:01




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
1952 TEA20.
It has a timing chain driving the cam shaft sprocket. There is no chain tensioner so do not try to adjust the grub screw in the timing cover - that is associated with governor adjustment.

To check the valve timing without taking the front off the tractor: under the starter motor is a 1/4" hole through the engine casting. A 1/4" rod or screw driver poked through that hole will pass through a corresponding hole in the flywheel when the engine is at top dead center on No 1 piston.

At that point both No 1 valve tappets should be rocking free.

If you do remove the front of the engine and timing chain cover, the crank shaft sprocket and cam shaft sprocket should - but not necessarily - have two "poppet" marks which will align at TDC on No 1 cylinder.

It may be valve timing but I would certainly be checking out all other possible causes first, including spark at the plugs, fuel, air cleaner blockage etc.

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Jerry/MT

11-07-2007 18:19:47




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 Re: Ferguson TEA? Problem in reply to Estle Cloud, 11-07-2007 15:51:34  
You have a TEA with the Standard Motors engine made in the UK. And yes it soes have a timing chain that drives the cam.
You say that you have "plenty of spark". Is that a FAT, BLUISH-WHITE SPARK? If it"s not that could be the problem. If you do have a FAT, BLUISH-WHITE SPARK, than you need to check the timing and the firing order. Just because the rotor turns doen"t mean you have a spark at the right time and a loose timng chain can jump and not only give you an ignition timing problem but also a valve timing problem. I can"t help you the the firing order or the timing because I don"t have the spec"s for the TEA but someone will respond that does.

The fact that you can"t start it with ether makes me shy away from a lack of fuel being the cause of your no start.

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