Triumphrat

oldebonnie

I have only recently realized that some of the later shop manuals are more versatile than the older ones, as they make reference to earlier models and changes to them. For example, one ' 650 shop manual covers '70 models but goes all the way back to DU101 ('63). Not all of the manuals are that inclusive.

Is there a factory parts manual that covers all of the dry frame 650s? That is, similar coverage to the above mentioned shop manual? It sure would be handy. As it stands, I am constantly going back to Gaylin and Bacon when trying to figure out what fits what.

GrandPaulZ

No way it could be done in one book, unless it was about 4" thick. And that is just the unit models!

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GrandPaulZ
Author of "Old Bikes"
Born Again Bikes
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DAGAD

Yep, GPZ nailed it right there. With experience you will find what fits what straight away. Then you will find what fits what with a bit of modification. Then you will find what don't fit anything.......................................... .................................................. .................

So, 1963 is unique, '64 and '65 are similar but different to '63. 1966 starts all over again and runs mostly into 1968. 1969 more changes and 1970 finishes off the changes with a new frame!
Then what happens when you get a winning combination? STOP MAKING IT??????????? BSA really does have a lot to answer for.
Roy.

KADUTZ

oldebonnie

The closest thing to what you are asking for is in the back of JR Nelsons Book "BONNIE , THE DEVELOPMENT HISTORY OF THE TRIUMPH BONNEVILLE".
But nothing published,that I have ever seen, will tell you what will interchange.
While parts may not interchange in small areas if done in groups much can be done.

Parts interchangabilty was/is so great throughout the line twins and tripples I always wondered why they didnt make a 750 twin that looked like a say 70 with disc brake front and rear. With say mag wheels. Almost all the parts were on the shelves so there would have been almost no R&D costs. jus a thought

GrandPaulZ

Kadutz: They DID make one with mags and discs that looked just like a '70 - it was the '79 Special!

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GrandPaulZ
Author of "Old Bikes"
Born Again Bikes
My Photos

DAGAD

Hey GPZ, WHO'S GLASSES ARE YOU WEARIN??? Has Mecchanica sent you some of his Becks??????? A T140D is NOTHING, NOT EVEN REMOTELEY like a 1970.
Roy.

Germ

Even with retro side covers and spoked rims a '79 looks nothing at all like a '70

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Ton Up NorCal

GrandPaulZ

Kadutz said: "I always wondered why they didnt make a 750 twin that looked like a say 70 with disc brake front and rear. With say mag wheels."

The operative word is LOOKS like a '70; and then combining his wish for 750cc, disc brakes and mag wheels, you get the '79 T140D Bonneville 750 Special. All that one would need to do is repaint the darned thing and it would be exactly what he wants.

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GrandPaulZ
Author of "Old Bikes"
Born Again Bikes
My Photos

KADUTZ

It was not my intention to take this thread off topic but only to point out how interchangable the parts were across the 500/650twin & 750 tripple line of bikes.
but might as well continue as some of you have been complianing again and we back in land of phoopy pants.
Just as a reference point for them that are not aware (among other bikes) I own a
79 T140E, 79 T140D, 78 T140V, 70 T120RT. I also have under restoration (or plan to restore) 77 T140J, 76 T140V, 74 T120V,70 TR6R, a few 70 T120R's. I also have been collecting parts to build the bike I described using as many off the shelf parts as possible.

GPZ the 70 and 79 T140D are not the same what I want is a a 70 Triumph with a real oil tank factory disc brakes front AND rear. A bike that you look at and all of a sudden realize the factory never did that or that or that. I might even try to convince you it was one off factory test bike. Then you walk away scratchin your head


jus my warped sense of humor I guess.

quagmire

OK my turn to turn this thread in another direction, sorry Oldbonnie:

Which has better stopping power, a perfectly tuned twin leading shoe '70 front brake or a later model Triumph front disk brake? I thought I read somewhere that they were pretty close.

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Hey, What's this oil on the floor?