Tecumseh rod through the block - Snowblower Forum : Snow Blower Forums
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post #1 of 29 Old 04-11-2018, 08:20 AM Thread Starter
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Tecumseh rod through the block

Good morning all
Since all the pros gather here, I'm kind of curious how many have had the famous Tecumseh rod through the block dilemma and did you fix it or just do a re-power? I myself have had maybe 8 over a lot of years and have repaired all except 1 that was too badly damaged to allow for a repair. If you fixed them, how did you do it?

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post #2 of 29 Old 04-11-2018, 08:42 AM
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.

never repaired one and definltely won't now with good running Predator's available for only $99

it changes the entire demeanor of the machine

with some elbow grease, paint, a couple of belts, this engine and an impeller kit, a 70's or 80's rusted hulk can be transformed into a better machine than it was new off the showroom floor.

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post #3 of 29 Old 04-11-2018, 08:44 AM
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Just did one on the Searsasaurus last January. I had just started it and idling it at the time when it went. Had plenty of oil so it was just one of those things apparently. This is the first one for me, though I've bought a couple of holed blocks in the past for parts.
I found another cheap blower with a 10 HP TEC on it. I did have to make a crankshaft extension to fit the length I needed but the rest was just refurbing it . I've since found another 10 HP TEC that's exactly right that I'm going through right now. This one is a match to the original one so I'm thinking about changing it out again later on.


I looked at using a clone I have on the shelf but had too many interference issues at the time. I'm still thinking about using that one on another frame I have in the garage.
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post #4 of 29 Old 04-11-2018, 08:49 AM Thread Starter
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TDIPAUL
Does the Predator engines also supply engines with the auxiliary cam shaft drive for the little Ariens?
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post #5 of 29 Old 04-11-2018, 08:52 AM
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Quote:
Originally Posted by snoman110 View Post
TDIPAUL
Does the Predator engines also supply engines with the auxiliary cam shaft drive for the little Ariens?
Snoman110

Not that I've seen. Single crankshaft only. Now there is a Youtube I saw quite some time ago where someone with access to a machine shop modified one to have a aux shaft but that's the only one I've ever seen.
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post #6 of 29 Old 04-11-2018, 09:20 AM
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If you've got a schematic or nomenclature for the blown Tecumseh Engine and Part Numbers, and if it was a popular engine, I'd consider disassembling it and selling the parts on eBay . . . . "the sum of the parts is greater than the whole".

You wouldn't have to sell many before you'd recovered the cost of the replacement engine.
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post #7 of 29 Old 04-11-2018, 09:38 AM
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Quote:
Originally Posted by HCBPH View Post
Just did one on the Searsasaurus last January. I had just started it and idling it at the time when it went. Had plenty of oil so it was just one of those things apparently. This is the first one for me, though I've bought a couple of holed blocks in the past for parts.
Do you know the history of that engine? If it was ever oversped, run low on oil or simply used the wrong oil, molten aluminum from the rod will start to weld itself onto the crank journal. Once this happens, it only gets worse even if the original cause is addressed. I've taken apart a H60 that hadn't blown but I was expecting it to. The crank had a rough aluminum finish, and the oil hole on the rod was almost blocked off.
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post #8 of 29 Old 04-11-2018, 11:10 AM
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Quote:
Originally Posted by snoman110 View Post
Good morning all
Since all the pros gather here, I'm kind of curious how many have had the famous Tecumseh rod through the block dilemma and did you fix it or just do a re-power? I myself have had maybe 8 over a lot of years and have repaired all except 1 that was too badly damaged to allow for a repair. If you fixed them, how did you do it?

Snoman110
Snoman.. Tecumseh is the Indian word for "Throws a rod".

Joe

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post #9 of 29 Old 04-11-2018, 11:50 AM
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Turmlos


It's my personal blower (The Searsasaurus) I've had for maybe 5-10 years. It's babied in that I give it a good going over in the fall, check the oil religiously and will start it and give it a minute or so to warm up prior to hitting the snow. I've had the chassis fully apart before and been into the top end of the engine too.


Thing is, it's a 40 year old engine so eventually something will fail regardless of what you do IMO. When it failed, it was just over idle and had run maybe a minute or two while I was moving the van. Just heard a bang and saw a puff of the magic smoke escaping.
I'm not hearbroken, I found a replacement (engine that is) in a week or so and now I even have another with the light stator on it just like the one that broke. Been through that one, now I just need to put it on to get the light back.

Last edited by HCBPH; 04-11-2018 at 04:12 PM.
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post #10 of 29 Old 04-11-2018, 12:16 PM
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I got 2 free machines w/ blown tecs last year; an Ariens and a Toro.

The Ariens needed a new block due to a cracked cam "bearing". Additionally painful b/c it was a dual-output motor and the cam was cracked in half.

On the Toro, I was able patch-up one with a new piston/rod/rings. Today, it runs like nobody's business!



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