1908 ??? Thor motor and carb

[Ross]

Just back from my holiday and was hoping there was a THOR serial number expert surfacing over the holidays.

[MartinK]

Not to make the wondering worse but it appears as though this engine starts with an 8 and has a distinct stamped dot behind it as well. Bummer it doesn't have a year.

http://classicmoto-cycles.blogspot.ca/2011/12/thor.html

Maybe you have already seen this, but here is a closeup of the engine from that blog post.
(click image)
thor.JPG

[Ross]

Interesting Martin. Thanks for posting. I noticed that the engine had a schebler carb and not the Thor carb. The mystery still to me is when a letter is used on some serial numbers and why? Also like on my engine some have a number followed by a dot and then presumeably the 4 digit production number. HHHMMMMM

[Runnlo]

Hello,
I'm not sure if this will help, or make things worse.....but I have an original 1913 Thor sales brochure, and it has a picture of the single motor, and the S/N on it is U 4 with no dot or punch mark between them.
Runnlo

[c.o.]

Maybe you have already seen this, but here is a closeup of the engine from that blog post.
(click image)
[ATTACH=CONFIG]10244[/ATTACH]

Thanks for the re-size Martin! It shows my eyes were off and it definitely is not an 8!

Hello,
I'm not sure if this will help, or make things worse.....but I have an original 1913 Thor sales brochure, and it has a picture of the single motor, and the S/N on it is U 4 with no dot or punch mark between them.
Runnlo

At this point not much can make it worse Runnlo.... the brochure you are referring to should show a different cylinder than Ross' engine.

Interesting Martin. Thanks for posting. I noticed that the engine had a schebler carb and not the Thor carb. The mystery still to me is when a letter is used on some serial numbers and why? Also like on my engine some have a number followed by a dot and then presumeably the 4 digit production number. HHHMMMMM

I'm still hunting Ross and asking folks that may know. I just thought of another fella that may have info and will follow up this evening. The THOR experts are rather scarce in these parts it seems....

[Ross]

I noticed that the cool Thor engine with the schebler carb did not sell yesterday at the Bonham's Vegas auction.

[c.o.]

http://www.bonhams.com/auctions/2046...3D21%26r1%3D10 I think they took a stab in the dark putting a date on it. C. (circa) is a pretty handy term I think.

[aka HAWG]

just ran across a thor single motor with the 'tag' style casting with a BM 8.6xxx.
the BM is smaller than the numbers - will post pics when I get more of them

any help identifying age ???

thor motor.jpg

[Old n Rusty]

has anyone been able to decipher the numbers/letters for our thors?

heres mine,its a belt drive no reduction gear housing that i date 10/11.....but im only going off of pictures

IMG_1522.jpg

[Garth340]

Hello

I’m looking for a 1905-1906 Thor engine
Or have any parts of one
Let me know please
Also need any parts for a 1905 R-S
All I have is a frame
Cheers

[RichO]

I have Thor single K.1461. I thought it to be 1908.

[Garth340]

I sent you a private message

[RichO]

What I thought to be an '08 model is in fact I believe to be a 1911 model K. When Thor stopped supplying Indian motors in 1910 and Indian started making their own motors the Thor upper end went to a beehive style cylinder instead of the four long bolt tall cylinder style. Mine is stamped with a K before it's four numbers and has the updated barrel. I know this barrel was made for the Minneapolis in 1910 by Thor but didn't show up on a Thor bike till 1911 as the model K. Check Steve Wright's book. I hope this makes since.

[keeskoster]

Thor single 1912

My single Thor I assume 1912
same number on crankcase and carburettor

keesSingle (2).jpg

[keeskoster]

And number on a 1908 Twin(also valves 10-08!)F twin.jpg