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#243101 - 03/15/09 1:26 am 71 OIF TR6R frame  
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Jeff23 Offline
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Connecticut
Hi All--

The owner before my PO welded side plates onto my frame. Just to be clear, I'm just building a runner, not a showbike. I would be interested to know what direction you guys would take with this frame. I'm going to take it apart further for powdercoating (obviously), but what will be the best way to locate stuff when I start putting it all back together? Any and all advice to a new guy welcome. More pics available if that would help:


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#243115 - 03/15/09 3:23 am Re: 71 OIF TR6R frame [Re: Jeff23]  
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desco Online content
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Bishop, Calif.
The battery, two coils, rectifier, zener diode, ignition switch and all the associated wiring are supposed to stuffed in that area under the seat. All, but the battery can be located elsewhere and/or replaced with modern substitutes. You are going to need a parts manual for this year bike, a printed one, in my opinion, is best. Don't even think of powder coating or new wheels until this thing is up and running. Yes you will have to take it all apart at the end, but depending on how this goes, you may be hacking, drilling, welding and fabricating on this thing for a long time.
The welded on side covers probably stiffen up an already stiff frame. Maybe too much so, not my area of expertise, but they also limit access to all the stuff that is supposed to be in there.
Hang in there and get a second job to help pay for it.
In the mean time, take off the shocks and see if there is any play in the swing arm bushing.
My dinner is getting cold, got to run.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#243123 - 03/15/09 6:26 am Re: 71 OIF TR6R frame [Re: desco]  
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DMadigan Offline
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It looks like all you lost is the airbox. If you have a twin carb engine you can put tapered cone filters on. With a single carb you will need a pancake filter. I can see the battery tray in there and the coils drop in through the top.
Where these frames lack stiffness is at the outer swingarm bolt plate. The tube is only supported down at the cross piece and at the shock mount so there is a long distance that is unsupported. The welded on side covers help stiffen that up.

#243129 - 03/15/09 8:04 am Re: 71 OIF TR6R frame [Re: DMadigan]  
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Blapper Offline
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This looks like a cool project.

Like Desco said you have the batt, coils, rectifier and zener to re-home. If I were doing that and if the cool looking side panels are nice enough to keep, I would keep the battery in the usual place (assuming the battery tray will still attach ok), put Tri-spark electronic ignition in it so it doesn't need a black box, locate the coils under the tank (assuming you don't have room for the standard coil support bracket or you can't modify it to use) and build a bracket off the mudguard support for the new electronic regulator/rectifer again assuming there isn't enough room for it on the tool tray.

That could be a cool looking bike when it's done - keep the pics coming eh Jeff?

Blapper redwine

#243130 - 03/15/09 8:04 am Re: 71 OIF TR6R frame [Re: DMadigan]  
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Triumph5ta Offline
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I would remove the welded on covers, I think they dont look good.
Fit "60s style" side covers instead of the standard airboxes.
Be careful if you have the frame blasted, get all the grit out of the oil bearing tube.
Thats what I would do.
Adam.

#243132 - 03/15/09 9:06 am Re: 71 OIF TR6R frame [Re: Triumph5ta]  
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mick2 Offline
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i would keep the frame as is if it were mine. the battery should still fit in there and if space is tight for the coils get a dual output coil?

#243205 - 03/15/09 9:01 pm Re: 71 OIF TR6R frame [Re: mick2]  
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Jeff23 Offline
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Connecticut
Ok, further pics so you guys can get a look at what I have / don't have in terms of space. The battery tray fits in the hole, and I laid the mounting platform for the coils, etc. alongside for scale. What are your thoughts? Feel free to ask for further pics or measurements.


















I'm thinking that at the moment, the best restoration tools I have are a laptop and a digital camera. Go figure smile
Desco, I'll take the shocks off hopefully tomorrow if I get time and check the swingarm bushing for play. And thanks to all! What's tri-spark igniton?

Last edited by Jeff23; 03/15/09 9:06 pm.
#243226 - 03/15/09 10:46 pm Re: 71 OIF TR6R frame [Re: Jeff23]  
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Blapper Offline
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Tri-spark is a new (ish) electronic ignition from Oz which doesn't need a separate black box and has other some nice features too. Looking at your pics (very useful), it looks like you have plenty of room except I can't see whether you have the depth for the coils to sit in the bracket and clear the side panels?

The regulator/rectifier box looks like it would go between the coils under the bracket doesn't it?

I reckon you can do a really cool bike with that frame, but you may want to look at a thread in the last week or so about 'thinning' the seat.

Blapper redwine

#243260 - 03/16/09 1:35 am Re: 71 OIF TR6R frame [Re: Jeff23]  
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desco Online content
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Bishop, Calif.
Much better pictures. Do you have the seat? It looks like the hinges and latch for it have gone south. More room in that black hole than I thought. If the coils fit you about home.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#243263 - 03/16/09 1:43 am Re: 71 OIF TR6R frame [Re: Jeff23]  
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desco Online content
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Do you have a local Triumph parts dealer? If you do it's time to make friends with him. I have been using the same guy for over 20 years. He is a wealth of information. I now live over 300 miles away from his shop so my questions get answered over the phone. I liked it better in the shop.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#243366 - 03/16/09 6:25 pm Re: 71 OIF TR6R frame [Re: desco]  
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Jeff23 Offline
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Connecticut
Desco, my nearest dealer's about 25 miles or so away. I also have my PO, who's a great restoration guy, and a machine / rebuild shop that does a large part of its business in Triumph and other Brit Bikes. I'm having them rebuild the engine itself.

Blapper, I exchanged a few emails with a representative of Tri-spark, even sent him some pics of my frame. He made several really good suggestions. I would still need coils, but no black box. So thanks for mentioning it. After talking to him, I think I'd at least consider installing Tri-Spark even if I didn't have the space issues.

#243370 - 03/16/09 6:39 pm Re: 71 OIF TR6R frame [Re: Jeff23]  
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Blapper Offline
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bigt

Those sidepanels are so niiice, I can see your bike in a silver or pale metalic looking really cool.

redwine

#243371 - 03/16/09 6:41 pm Re: 71 OIF TR6R frame [Re: Jeff23]  
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Ger B Offline
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NL
Somehow I doubt that this is a Triumph frame.
I'm not 100% sure, but I had the idea that in the Triumph OIF frame, the tubes underneath the seat join the down tube (oil tube) at a lower level, further down from the oil filler cap.
That's what gives the Triumph seat a forward from horizontal sitting position.
What I see here is what I see in my BSA, horizontal tubes which join directly beneath the filler cap.
The swing arm looks grey to me. Only BSA used grey (dove grey) during model year 1971.

Can you read the frame number?

Do not laugh if I'm wrong please.


Ger B

#243373 - 03/16/09 6:54 pm Re: 71 OIF TR6R frame [Re: Jeff23]  
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desco Online content
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Jeff, Glad to hear help is near at hand, I thought you were on your own with this project.


1968 T120R
1972 T120RV
Any advice given is without a warranty expressed or implied.
#243418 - 03/16/09 11:05 pm Re: 71 OIF TR6R frame [Re: desco]  
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Jeff23 Offline
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Connecticut
Well, Des, I can use all the help I can get, so I'm going to ask questions on the forum alot. I know much more about how to start after a week or so of taking pics and posting than I did when I brought 'er home. So thanks for your help, now and in the future.

Ger,I'll look for the frame number. My PO was a very knowledgeable BSA restorer, so I would be surprised if it's not a Triumph frame. The OIF stuff is all there at any rate.

#243423 - 03/16/09 11:18 pm Re: 71 OIF TR6R frame [Re: Jeff23]  
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Mike Baker Online content
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Ger
As far as I know, all 71's and early 72 Tri's had the higher frame rails. Only in late 72 and thereafter did the seat height get lowered.
But its probably wise to check SN's to be sure.
Mike

#243428 - 03/16/09 11:31 pm Re: 71 OIF TR6R frame [Re: Ger B]  
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L.A.B. Online content
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Originally Posted By: Ger
I'm not 100% sure, but I had the idea that in the Triumph OIF frame, the tubes underneath the seat join the down tube (oil tube) at a lower level, further down from the oil filler cap.
That's what gives the Triumph seat a forward from horizontal sitting position.

What I see here is what I see in my BSA, horizontal tubes which join directly beneath the filler cap.



The Triumph frames were only made like that from engine/frame number CG50414-on, when the seat loop was lowered. Prior to that number, the Triumph seat loop would have looked the same as the frame in the photos above.





#243433 - 03/16/09 11:53 pm Re: 71 OIF TR6R frame [Re: L.A.B.]  
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Jeff23 Offline
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Where's the frame number located guys? I'll check it out. I do have the later conical hubs, don't know when that switch took place relative to the frame / seat.

#243480 - 03/17/09 4:15 am Re: 71 OIF TR6R frame [Re: Jeff23]  
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DMadigan Offline
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My '71 frame had the number on the front of the headstock. The '75 frames have it on the left down tube where it meets the headstock.
Comical hubs were part of the OIF group of parts along with the alloy sliders. Both interchangeable between BSA and Triumph.
Also, early frames have the seat hinges on the right so the seat will self close whilst on the side stand. It took until '74 or '75 to figure out if the hinges were put on the left, the seat would remain up while you are trying to dig out the tool kit.

#243520 - 03/17/09 12:13 pm Re: 71 OIF TR6R frame [Re: DMadigan]  
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triumphmike Offline
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Tennessee
Looks like the person who welded on the side panels removed the seat pins on the frame. You will have to figure out some other way to hold the seat in place.

#243542 - 03/17/09 3:57 pm Re: 71 OIF TR6R frame [Re: triumphmike]  
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Blapper Offline
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...Or just drill the frame where the old ones where and weld fabbed ones back on. Otherwise you will struggle to hold the seat on.

Blapper redwine

#243553 - 03/17/09 5:07 pm Re: 71 OIF TR6R frame [Re: Blapper]  
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JubeePrince Online content
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Back on the mainland!
....and you could have the added bonus of mounting them on the drive side where they belong! No more side-stand seat-falling.....

Cheers,

Steve


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
#243574 - 03/17/09 7:21 pm Re: 71 OIF TR6R frame [Re: JubeePrince]  
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DMadigan Offline
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Actually, the stock seat hinges were a stupid idea. The seat pan has rubber cushions around the perimeter but since the hinge plates are resting on the welded in rods, they do not contact the frame on that side. All the weight is on the two hinges which is why they had to weld heavy tabs onto the pan. On mine, I welded two horizontal pins at the front of the seat rails, then added two forward facing hooks on the pan. The two rear hinge plates (left/right) in the pan have vertical plates with vertical slots bolted in. Two brackets with spring loaded pullpins sit just behind the shock mounts. Now the seat hooks in front and drops into the pins in back and rests on the cushions all around. Pretty much like the pre-OIF A65 or Norton but full floating vertically.

#243620 - 03/17/09 10:38 pm Re: 71 OIF TR6R frame [Re: desco]  
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Terryville Ct.
there is a good shop in Terryville Ct.


you never see a motorcycle parked outside a psychiatrist's office
67 T120R
70 Norton 750 chopped
T120R streetfighter
79 HD FXS
71 T120R
#243706 - 03/18/09 3:53 pm Re: 71 OIF TR6R frame [Re: limeymotors]  
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Blapper Offline
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Hey Jeff, are those shox off a caterpillar of some kind? laughing

Blapper redwine

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