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Old 12-06-2011, 11:06 PM   #1
bloozandbrews
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Default '59 Triumph ID ?

Just picked this up a few days ago and am dying to know just what it is.

The numbers stamped on the frame and engine match, and correspond to a '59 model but I don't know the engine size. I assume it's either a 500 or a 650. There are no letters to ID the engine - it's just a 6 digit number.
So my question is, for any of you old Triumph cats out there : Is there any other way to determine engine size w/out actually disassembling and measuring bore, stroke, etc ?

Most likely this engine is going to need to be torn down anyway as this bike is a rustbucket. I'm not even sure if the engine is free, since I can't seem to find how to turn it over (The kickstart doesn't engage)
Isn't there a way to turn the crankshaft externally?
Looks like I would need to remove the whole sidecover.
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Old 12-07-2011, 12:22 AM   #2
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Default Re: '59 Triumph ID ?

there should be a model designation stamp on the engine, like 6T or T120, TR6 or 5T.
take a pic of the number side of the engine and post it on here so we can tell what has happened.
As for turning the engine over just put it in gear and roll it.
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Old 12-07-2011, 12:30 AM   #3
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Default Re: '59 Triumph ID ?

I don't see any model stamp w/letters like that.
There is just a 6 digit number on the left side of the cases just under the cylinder base.
Should I look somewhere else?

Putting it gear and turning the wheel won't work, the clutch or something is messed up so it won't go in any gear. I know I'll have to tear this thing all apart anyway but it would be nice to know if the engine turns at least.

I will post a pic tomorrow.

Thanks for the help guys.
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Old 12-07-2011, 11:33 AM   #4
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Default Re: '59 Triumph ID ?

that's where the numbers are, there should be a model stamped into it. it is common to see engine numbers that are incorrectly re-stamped in replacement cases.
and you can't turn the engine with a kicker or a wheel without a clutch.
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Old 12-07-2011, 11:36 AM   #5
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Default Re: '59 Triumph ID ?

pics

desert sled, ceriani front end (I think)

the s/n 021939 is on the engine and the frame on the left side of the neck.
the other # F4610 B is on the right side of the neck.

what is it ??
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Old 12-07-2011, 11:43 AM   #6
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Default Re: '59 Triumph ID ?

It is not a '59 as the duplex frame didn't happen until '60 and that one appears to have the upper brace so it is '61 or '62. It is a TR6 trophy 650, no 500 engines were pre unit at that time, they had all become unit by then.
Definitely set up as a desrt sled. Due to the common practice of blowing stuff up and just re-stamping another engine to match the frame on race bikes it has been done like that. Who knows for sure what the engine is. That number you show on the frame is a casting number and is on all of them so it means nothing except that the neck casting is for a late duplex frame. The alternator primaries are also correct for a late pre-unit as the generator ceased to be by then and your case have no provision for one. A '59 would have had one.
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Old 12-07-2011, 12:20 PM   #7
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Default Re: '59 Triumph ID ?

Knowledge is power ! THANK you....

You say it is def. a TR6 650 but then you also mention who knows what the engine is so I am still a bit confused. 650 or 500 or ???
any distinguishing visual characteristics between 650/500 ??

I will have a learning curve as to Triumph verbiage - I assume " duplex " refers to the dual front downtubes ?

You mention an alternator, this engine also has a Lucas magneto.
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Old 12-07-2011, 12:58 PM   #8
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Default Re: '59 Triumph ID ?

Being a race bike, the odds of the engine being original to the frame are smaller. The engine may even be built from pieces of different motors. The cases are alternator cases. (5T '55-'58, 6T '54-'62, T110 '60-61, TR6 or T120 '60-'62) If you've got the right books you can tell more by the casting numbers. The stamped number, however, is not original to that engine's left case half.

The frame's serial number should be stamped in the left side of the neck and be either 029364-030424 or D101-D25000 (or thereabouts. I don't know the final duplex frame number so that's a guess based on previous years production) Your number is a '59 number, but may have been stamped into that late '60-'62 frame to match a '59 title that someone had long ago. It was a common practice back when, both for race bikes that kept blowing parts and bending frames, and unfortunately for stolen bikes. It's a nice bunch of parts you've got there though. Find yourself a titled pre unit frame and a clean set of cases and build a bike. Or alternatively, you could part that bike out and scrap the badly numbered pieces.

Here's a pic of what a duplex frame serial number should look like.

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Old 12-07-2011, 01:08 PM   #9
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Default Re: '59 Triumph ID ?

Quote:
Originally Posted by bloozandbrews View Post
Knowledge is power ! THANK you....

You say it is def. a TR6 650 but then you also mention who knows what the engine is so I am still a bit confused. 650 or 500 or ???
any distinguishing visual characteristics between 650/500 ??

I will have a learning curve as to Triumph verbiage - I assume " duplex " refers to the dual front downtubes ?

You mention an alternator, this engine also has a Lucas magneto.
The frame is a TR6 and originally housed a 650.
Duplex does refer to the downtubes.
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Old 12-07-2011, 01:14 PM   #10
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Default Re: '59 Triumph ID ?

google TRICOR, they list all the numbers and dates.
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Old 12-07-2011, 01:20 PM   #11
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Default Re: '59 Triumph ID ?

" Find yourself a titled pre unit frame and a clean set of cases and build a bike. Or alternatively, you could part that bike out and scrap the badly numbered pieces. "

Oh no, this bike is getting restored. Here in AZ it's easy to get a title, I can just take the bike down to Motor Vehicle Dept, they will inspect it and I can get a bonded title. Done it many times. They will probably ID this as a '59 since that's what the numbers match to.

Here's my '73 Guzzi that looked not much better than the Triumph when I first brought it home :
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Old 12-07-2011, 01:25 PM   #12
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Default Re: '59 Triumph ID ?

Please keep the comments coming ! All info is appreciated !

I'm pretty up on Moto Guzzi's so if I can return the favor, let me know...
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Old 12-07-2011, 02:16 PM   #13
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Default Re: '59 Triumph ID ?

Quote:
I can just take the bike down to Motor Vehicle Dept, they will inspect it and I can get a bonded title.
It would be best to title it as a '61 or '62 as none of those frames existed until then. Are you sure there is no frame number?
What is the transmission number? It is on top behind that clutch arm.
As I said, I believe it is a 650. No sense in using a 500 engine in that bike. A 5T would have had a cast iron head ( although the cases could have been used with 650 internals and top end). A TR5 or T100 would have generator cases. What does the plate on the timing cover say? If it is original to the engine it will tell you the model!
And those cases appear to be unmolested under the number stamping so were likely a replacement set. Whoever stamped them left half the number off though, as it should have the model designation on it!

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Old 12-07-2011, 02:22 PM   #14
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Default Re: '59 Triumph ID ?

He said it's got 021939 on the neck, Robbie. Pics might help...
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Old 12-07-2011, 04:36 PM   #15
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Default Re: '59 Triumph ID ?

Yes, the s/n 021939 on the engine is also on the frame.
I don't think I will have a say in what year the bike gets titled as but I will try.
The timing cover plate just says " made under patent numbers (series of numbers)
The transmission s/n is 129477.
I had a friend look at it and he says the transmission is from a 650, and with the comments, I believe I do indeed have a TR6 650 here.
Appreciate the help !
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Old 12-07-2011, 05:48 PM   #16
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Default Re: '59 Triumph ID ?

I wouldn't think this would be the bike to "retore", as in original, too obviously bad numbers that will only result in bad papers when titled. Might be a better bobber or bitsa. The only link to a TR6 (trophy) would be the alloy head, which was also on the T110. There's really no way of knowing what model that lower end originally was. You could look for seat hinge mounts on the rear frame section, 6T and T110 had hinged seats, TR6 and T120 did not. These would probably be cut off by now, but there may be a bump to feel. Sport models ( TR6 & T120) had a smaller tank as well, but most racers would want the smaller type so that's no help.
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Old 12-07-2011, 07:48 PM   #17
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Default Re: '59 Triumph ID ?

your bike engine 021939 is 1960 650cc preunit.

1960 engines numbers: 029364-030424.
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Old 12-07-2011, 08:07 PM   #18
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Default Re: '59 Triumph ID ?

Just keep it as a desert sled! Why make it into a street bike? That would be boring as hell. They are a dime a dozen, and period racers are cool!
Want to trade something?
Robbie

Quote:
your bike engine 021939 is 1960 650cc preunit.

1960 engines numbers: 029364-030424.
not45blesk,
Unless you're counting backwards, you missed it!
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Old 12-07-2011, 08:41 PM   #19
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Default Re: '59 Triumph ID ?

" not45blesk,
Unless you're counting backwards, you missed it! "

Yeah...#s say '59 but I dono...

I WILL keep it a desert sled - just like it looks now! Absolutely- that was my first intention. But I want to be able to ride it around town - so it will need lighting.

The bike will look the same - I just want it to be street legal.
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Old 12-07-2011, 08:54 PM   #20
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Default Re: '59 Triumph ID ?

When I say ' restore " I mean go through the whole bike mechanically, and also make it look good but I'm not into full cosmetics, I like a bike that is reliable, PERFORMS, and looks pretty good... Form follows function !
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