Moose's TEA 2080 Rebuild

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Re: Moose's TEA 2080 Rebuild

Postby YunLung » Fri Oct 06, 2017 7:29 am

Hi there!

Same problem as I got...
My welchplug was still in place but badly leaking.
As I was not able to get a fitiing size here, i fabricated my own one and equipped it with an O-RIng, also glued it in place.

Still works though...




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Re: Moose's TEA 2080 Rebuild

Postby Moose » Fri Oct 13, 2017 2:57 pm

Did a little work on the carburetor this week. Trying to get engine to run just right. The bowl was going dry causing it to stall. I found quite a lot of grit in there causing the float to stick, I think. Also that gasket had shrunk severely. The float valve seemed to stick occasionally so I replaced it as well.

More Sparex gasket issues. Notice the nick at the upper right of the bowl. Also the 1/4" hole for the idle jet needle beside the venturi was a little too small.
Attachments
Ferguson TEA 2080-2495.jpg
Old Shrunk Gasket on top of New One
Ferguson TEA 2080-2495.jpg (208.82 KiB) Viewed 66 times
Ferguson TEA 2080-2496.jpg
New Gasket and Float Valve
Ferguson TEA 2080-2496.jpg (241.68 KiB) Viewed 66 times
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Re: Moose's TEA 2080 Rebuild

Postby Moose » Fri Oct 13, 2017 7:42 pm

I tweaked the governor setup today and have it running better, but still not happy. I get this popping sound, through the air cleaner, I think/ My guess is that the carb is still a little dirty, but not certain. Any thoughts?
Here is a video. Most of the pops are at the end. https://youtu.be/CXPpR2Z-s_U
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Re: Moose's TEA 2080 Rebuild

Postby pcp20us » Sat Oct 14, 2017 1:00 am

Ha moose.

I can hear the pop in the 2nd running of the tractor. I assume this was throttling up and down?

or is it cutting out, if so i think it sounds like lack of fuel flow, watching it a 2nd time.


Things that i would check, which you may have done.

good fuel flow out of tank.
Timing
being intake related a inlet valve, ( unlikley seeing its a rebuild).

Guessing that was a dwell meter in vid, Is the dwell angle constant.
Is you air cleaner, clean, do you still get the same result if you remove air cleaner
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Re: Moose's TEA 2080 Rebuild

Postby Hiawatha » Sat Oct 14, 2017 1:53 am

Mysterious popping sounds emanating from my TED were traced down to the rocker cover breather valve .

breather valve.JPG
breather valve.JPG (24.8 KiB) Viewed 57 times


A missing or stuck pin will often be the root cause , worth dismantling it just to be sure .

Air breather valve.JPG
Air breather valve.JPG (59.58 KiB) Viewed 57 times
-------- 1952 TED, 1957 FE35 Grey and Gold Deluxe
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Re: Moose's TEA 2080 Rebuild

Postby pcp20us » Sat Oct 14, 2017 4:39 am

OR what HW said about breather. I know i have a slight breather problem on my rebuild, at idle i can hear it sucking air somewhere, but cannot find it, sounds like its at the banjo that goes into the rocker cover. If i remove the banjo and allow it to suck just the right amount of air by plugging the vent with a finger, its runs sweetly, bolt it back together and just has that slight rough sound. Reminds me that i still need to fix that problem :!:
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Re: Moose's TEA 2080 Rebuild

Postby Moose » Sat Oct 14, 2017 1:09 pm

pcp20us wrote:I can hear the pop in the 2nd running of the tractor. I assume this was throttling up and down?
or is it cutting out, if so i think it sounds like lack of fuel flow, watching it a 2nd time.

good fuel flow out of tank.
Timing
being intake related a inlet valve, ( unlikley seeing its a rebuild).

Guessing that was a dwell meter in vid, Is the dwell angle constant.
Is you air cleaner, clean, do you still get the same result if you remove air cleaner


The pops are mostly when throttling down. Fuel flow is good now that the float is working better. I thought about valves so I did a compression test to be sure, 110 PSI all around.

It is a dwell meter, but I was using it for RPM. Dwell should no longer be an issue as I have an electronic distributor now. And it is the same without the air cleaner.
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Re: Moose's TEA 2080 Rebuild

Postby Moose » Sat Oct 14, 2017 1:13 pm

Hiawatha wrote:Mysterious popping sounds emanating from my TED were traced down to the rocker cover breather valve .
A missing or stuck pin will often be the root cause , worth dismantling it just to be sure .


I did have it apart, of course, during the overhaul. My valve is in the manifold rather than in the banjo bolt. If I remember, it is nothing more than a cotter type pin inserted in a washer. Do you know of a test to check it? Or just remove it and run for a bit?

Edit-I was doing some reading on YT and found that Brad V had a valve issue. When the valve is plugged additional oil ended up in the air cleaner. I have not noticed that problem yet.
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Re: Moose's TEA 2080 Rebuild

Postby Moose » Sat Oct 14, 2017 4:57 pm

If it were a timing issue, which way? Too advanced or too retarded?
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Re: Moose's TEA 2080 Rebuild

Postby Hiawatha » Sun Oct 15, 2017 4:20 am

Moose wrote: If I remember, it is nothing more than a cotter type pin inserted in a washer. Do you know of a test to check it?


The pin and hole are quite small Moose , I fashioned a pin from a paperclip , the washer from an Australian copper one cent piece , the hole no larger than a loose fit for the pin .
The purpose of the valve is to introduce oil vapour laden air into the rocker cover to reduce water condensation and to contribute to the lubrication of the upper valve train .
I suppose removing it might be a test of sorts .

I would also test for vacuum leaks , a bugbear of mine that has had me scratching my head often , easy enough to test with any wd40 type spray . The carburettor flange is a common culprit , over tightening here will often distort it , the fix is easy , you only need to rub it flat on a piece of emery on plate glass .
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