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The Tecumseh HH100 on the Lambert tractor is rebuilt and running.


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#1 classic ONLINE  

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Posted July 05, 2015 - 05:40 PM

This old Lambert has been sitting in the elements for quite a while. The points plunger was seized in the block, so I ordered one of the repros from Ben. Thanks Ben! I ordered new points and a condenser and I was Just going to try to get it running. I did have an NOS rod, head, valve springs,another Walbro LME carburetor that I rebuilt, and a new gasket set. All I needed was a piston and rings, so I pulled the engine and measured the bore. The bore looked good, but the cylinder walls were glazed. The cylinder was worn just under .002, so I ordered an NOS standard piston and rings. I honed the engine with my new Lisle hone, replaced the exhaust valve, lapped the valves in, and set the valve lash. Well, I just finished it up and ran the engine for 15 minutes. I'll retorque the head and carburetor when it cools and I'll put the transmission back in. I'm going to replace the drive chains since they are a little crusty, and everything needs to be rewired. I had to use a pull rope since I didn't have the correct starter generator belt for it. I still have to lube up the chassis, and it won't be long before the tractor is functional again.

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Edited by classic, July 05, 2015 - 05:44 PM.

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#2 boyscout862 OFFLINE  

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Posted July 05, 2015 - 06:11 PM

Nice job. One tip I learned 45 years ago: on a newly assembled engine do an oil change at 15 to 30 minutes. It is suprising how much junk comes out with the oil. Good Luck, Rick


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#3 classic ONLINE  

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Posted July 05, 2015 - 06:13 PM

The engine was pretty crusty, but luckily the crankshaft was in great shape and the rotten muffler came off without too much trouble. You can see the ring gap in the old ring compared to the new ring. The pic of the honed cylinder shows where the most wear was in the block. I continued honing until the dark spot disappeard. I decided to get this tractor back in shape because there aren't many out there. Once everything is working as it should, I think I'll restore it. I don't really have the time right now since I'm working on other tractors.

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#4 classic ONLINE  

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Posted July 05, 2015 - 06:15 PM

Thanks Rick, and that's a good point.
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#5 classic ONLINE  

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Posted July 06, 2015 - 02:05 PM

I put the rest of the tractor back together, but I still have to run new wires and hook up the control cables. I was finally able to ride it around a bit and everything works fine. I just have to slide the engine and transmission forward a little to take some slack out of the drive chain. The chain taps on the frame in 2nd and 3rd gear and it's annoying. I haven't decided between new paint and decals, or just leave it as is. Anyway, it was fun turning this heap into a functioning tractor again.

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#6 MH81 OFFLINE  

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Posted July 07, 2015 - 06:38 AM

:thumbs:
Doctor, you've saved the patient!
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