Governor Repair - Vintage Tecumseh - Snowblower Forum : Snow Blower Forums
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post #1 of 13 Old 11-01-2018, 05:17 PM Thread Starter
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Governor Repair - Vintage Tecumseh

What's the procedure for removing/replacing the governor?

Getting ready, I find my old tecumseh is over-revving, and the lever for the governor is loose, flopping about.
So....I guess I have to dig into the engine and adjust the governor mechanism or replace it.

Am I right, that I remove the engine as a unit, then drop the oil pan and access the governor unit from the bottom?

This is a 1994 Yard Machines with a Tecumsh HSSK 50 engine (horizontal shaft, 200cc, flat head (L head)).

Joe
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post #2 of 13 Old 11-02-2018, 01:12 AM
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its not that vintage. old? yes
is the set screw "screwed" down? theres a vid by donyboy and others on adjusting the governor.
no oil pan, u would need to dismantle motor to get to it, again, utube vids will show u how,
get a cheap tach/hour digital meter from fleabay to see what its actually revving at, in my sig theres a video of me installing one, its easy and cheap

Bought a dead but now fixed 1980ish craftsman II 10/28....ITS ONE HEAVY BEAST

MY VIDS ON FIXIN HER UP

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Last edited by vinnycom; 11-02-2018 at 01:18 AM.
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post #3 of 13 Old 11-02-2018, 06:54 AM
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There is no oil pan on these, You will open the case. The cover the engine shaft comes out of comes off and the governor is in there driven by a gear on the shaft, I also have a spare engine that needs that done. You may get away with using the old gasket but there pretty cheap on eBay and my feeling is if I have it apart I may as well put new gaskets to avoid any leaks later. This is a pic of the governor and the part of the case you need to remove, The gear that drives it is on the crank shaft still inside the engine.
https://goo.gl/images/USoFuT

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post #4 of 13 Old 11-02-2018, 08:53 AM
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I have replaced governors without removing the engine; Remove Pulleys and engine case can be split, and governor replaced. You will have to Get the Auger "split" from the chassis to provide clearance.
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post #5 of 13 Old 11-02-2018, 10:18 AM Thread Starter
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Good news (I hope). At closer inspection I see that the lever became detached, i.e. lost the tiny clamp within the lever's end. The governor's rod coming out of the engine is just a stub, barely enough to grab onto.


What fits into the lever's end, to hold onto the small governor's stub?




Can I make this part myself, or get it from a local hardware store?



Joe
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post #6 of 13 Old 11-02-2018, 10:25 AM
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I thinkn you can find the part numbers here: https://www.jackssmallengines.com/ja...up/part/hssk50 Click on one of the engine models (your s/n if you have). I think the part is this or is close by. https://www.jackssmallengines.com/ja...tecumseh/31335

You can zoom in on the engine assembly diagram, its very busy, but you can find things if you know what to look for. Click on the item number in the drawing, and it will pull up that part. I doubt the hardware store has any of this, but any small engine shop can order, or just order from Jacks. I have had good service from them.

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post #7 of 13 Old 11-02-2018, 10:37 AM Thread Starter
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Quote:
Originally Posted by paulm12 View Post
I thinkn you can find the part numbers here: https://www.jackssmallengines.com/ja...up/part/hssk50 Click on one of the engine models (your s/n if you have). I think the part is this or is close by. https://www.jackssmallengines.com/ja...tecumseh/31335

You can zoom in on the engine assembly diagram, its very busy, but you can find things if you know what to look for. Click on the item number in the drawing, and it will pull up that part. I doubt the hardware store has any of this, but any small engine shop can order, or just order from Jacks. I have had good service from them.

PaulM,
That's the right part, but look at my picture. That part is still attached to my lever!

What keeps that fixed tight to the governor stub? As it is now, it fits onto the stub, but there's nothing to keep it tight.



Joe

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post #8 of 13 Old 11-02-2018, 11:25 AM
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Garage
from the pic, it looks like a weld broke ?

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post #9 of 13 Old 11-02-2018, 11:33 AM Thread Starter
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Quote:
Originally Posted by nwcove View Post
from the pic, it looks like a weld broke ?

These parts are all sheet metal, no welding. I'm guessing a set screw or something fell out, that holds the "clamp" tight against governor stub.


Is it a screw that's missing, or what?


I suppose it's possible that it's friction-fit, but that seems like a poor choice for such an important linkage.
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post #10 of 13 Old 11-02-2018, 12:17 PM
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I just looked at a parts engine I have. Like another poster said, it was welded to the shaft. Many of the older engines did have a system with a clamp. You could remove the linkage and leave the shaft in place. ---- John
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