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Can a Tecumseh motor be dated like a Briggs?


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#1 FirefyterEmt OFFLINE  

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Posted June 25, 2011 - 01:19 PM

Anyone know? I know that with a Briggs you can tell pretty much exactly when the motor was built, but I don't know on the Tec motors.

Here is a serial number that I want to date the motor to. It's off that Roto-Hoe snow blower I picked up. Today I drilled out the broken gas tank bolt on the head and pressure washed off the grease. I found a lot of yellow paint under the black which just reinforces my claim that this was indeed built by Bob-Cat.

HM80-155318M Ser: 7243D

Thanks in advanced for any help on dating the motor (and such, the tiller)

#2 Deck_Drive OFFLINE  

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Posted June 25, 2011 - 01:32 PM

as far as I know you can date a tec motor like that. It would have been a smart thing to do though

#3 olcowhand ONLINE  

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Posted June 25, 2011 - 02:08 PM

The 7 in your serial # stands for the year. The next three numbers represent the day of the year it was manufactured. So yours was built on the 243rd day of the year. But TEC used this sytem again every decade, so it could be 1977, 1987, or so forth. If it's points ignition it has to be 1977, but if solid state it will be 1987. I think it's old enough to rule out 1997? Hope this helps.
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#4 FirefyterEmt OFFLINE  

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Posted June 25, 2011 - 02:11 PM

Thanks... I would guess 1987 based on what it looks like. I have not gotten into it deep enough to see if it has points, but I doubt it.

#5 IamSherwood OFFLINE  

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Posted June 25, 2011 - 07:17 PM

The 7 in your serial # stands for the year. The next three numbers represent the day of the year it was manufactured. So yours was built on the 243rd day of the year. But TEC used this sytem again every decade, so it could be 1977, 1987, or so forth. If it's points ignition it has to be 1977, but if solid state it will be 1987. I think it's old enough to rule out 1997? Hope this helps.


What would the "D" stand for?

#6 olcowhand ONLINE  

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Posted June 25, 2011 - 07:21 PM

What would the "D" stand for?


The line & workshift that built it.
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#7 IamSherwood OFFLINE  

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Posted June 25, 2011 - 07:27 PM

The line & workshift that built it.


Thanks for all that info.

#8 olcowhand ONLINE  

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Posted June 25, 2011 - 07:34 PM

It's not from my head, but I knew where to find the info. An engine forum I used to frequent had that subject come up many times. I couldn't quite remember the answer for sure, so I just went there & did a search & found it.

#9 IamSherwood OFFLINE  

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Posted June 25, 2011 - 07:40 PM

Nope, I don't believe that. It was all there in your head.:smile1:




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