Dilonious' 1970 T120R Restoration - Triumph Forum: Triumph Rat Motorcycle Forums
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Member's Restoration & Rebuild Projects Details of member's own projects.

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Old 11-08-2012, 07:12 PM   #1 (permalink)
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Grand Prix 125
Main Motorcycle: 1970 Triumph Bonneville
 
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Location: Boise
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Dilonious' 1970 T120R Restoration




This bike is 95% complete.. totally original with 11,000 miles. It was the dealer owner's personal bike.. so it was well taken care of.

I'm going to split the cases and take a peak this weekend, put her back together in the coming week or two..

Plans:
CLEAN IT. shine it up.

new fork stanchions, black paint lowers black, new fork seals + covers.

source headlamp brackets, they're pretty much the only missing parts.

rebuild carbs

Boyer Ignition

new valves/rings and whatever else it needs.

new headers without crossover

new oil pump

new tires

M bars

RIDE IT.
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Old 11-11-2012, 02:16 AM   #2 (permalink)
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Main Motorcycle: 1970 Triumph Bonneville
 
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Today's Progress

Pulled the motor:


Shined up the Tank/Fenders:


Shined up the rims.. found a trick to dip aluminum foil in water and scrub chrome.. it instantly melted the rust! These looked like they were in rough shape.. now they look almost new!




The tools that came with the bike.. and a set of whitworth sockets+end wrenches:


this build is powered by:


looks like the cylinders were honed by previous owner:


Came missing pistons, pushrods, and pushrod tubes:


Love the seat:
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Old 11-11-2012, 02:16 AM   #3 (permalink)
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the old man, first time working on a british bike since we worked at a dealer in the 60's:


pipes cleaned up well with the aluminum foil trick:



tomorrow we're going to pull the engine apart and split the cases.. figure out what we need to order on Monday
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Old 11-11-2012, 07:54 AM   #4 (permalink)
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Looks like a pretty great collection of cars in the shop too!
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Old 11-11-2012, 09:37 AM   #5 (permalink)
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Nice shop. I see a race car in the background so assume you guys know what you are doing, for sure.

That aluminum foil trick is an oldie for sure. When I was a kid, the trick was aluminum foil and Coca Cola.

Another trick is to use foam pipe insulatoin to protect the alum rods from getting dinged on the case mouth. They don't like dings, especially transverse dings.

Nice batch of special tools you got with that bike. The tools can be the challenge to a first timer.

Glad to see you are keeping it original. They are only original once.

Looking forward to the finished product.

regards,
Rob
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Old 11-11-2012, 10:11 AM   #6 (permalink)
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Welcome to the forum! Great project bike, it'll be a contender for 2013 "most improved"...
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Old 11-11-2012, 09:12 PM   #7 (permalink)
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Quote:
Originally Posted by Snakeoil View Post
Nice shop. I see a race car in the background so assume you guys know what you are doing, for sure.
almost the opposite! I come from a modern import car background and my dad from domestic car.. so everything on these bikes makes us scratch our heads.. haha!
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Old 11-12-2012, 07:21 PM   #8 (permalink)
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One thing is for sure. There is no place to plug in your diagnostics to tell you what's wrong with it. But on the other hand, they are so simple that you can always figure it out if you just pay attention to all the symptoms. Modern cars have eliminated the ability to troubleshoot without an OBD plug.

The bike will have you asking yourself "What were they thinking when they did that?!". I know from experience. But you suprisingly get used to it and it just stops bothering you. It's just the way they are. It's kinda fun to figure out which part goes on first.

regards,
Rob
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Old 11-13-2012, 01:29 AM   #9 (permalink)
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Rob, i so wish that was true! The issues involved with troubleshooting via an OBD2 plug are numerous and frustrating!

Sorry, that is one nice find. Good to see you keeping that paint on there. For what it's worth i'm in the same shoes. I've been in the trade all my life and the British bikes took me some head scratching.

Rod
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Old 11-13-2012, 03:31 PM   #10 (permalink)
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Main Motorcycle: 1970 Triumph Bonneville
 
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anyone have any non-ebay recommendations for the headlamp ears?

Current status: about to split the case, puller for cam gears is stripped
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