[1951thunderbird]

''I just happen to have a 1956 trannie and some clutch parts''

Now you have a start on a preunit the most important part the gearbox.

This site has some good info I use his technic when rebuilding a 4 speed Triumph trans.

Technotes: Classic Triumph 650 Motorcycles

Articles on every aspect of maintaining and repairing 1964-1972 Triumph 650 motorcycles.

hermit.cc

 

[newsh]

Thought you might like this.

1951 Brochure Centrefold

 

[newsh]

Dated lower left

 

[Dan Winright]

Didn't know that you could post pornogrophy here.

 

[newsh]

Didn't know that you could post pornogrophy here.

The other pages are in the Vintage Pics thread

 

[1951thunderbird]

Tinkered with the 6T iron heads today got them all cleaned up.
How they looked after a brief wash up in kerosene.

Soaking them in chem dip after this photo cleaned up the chambers real nice light wire hand brush got them good enough.
Valves looked pretty good continued on with wire wheel treatment.

Lapped in the 70 year old valves

Shined up pretty well very pleased with the way they turned out.

Time for the hot soapy water cleaning rubber ducky mia

 

[1951thunderbird]

Some older photos of the cleanup job..

Getting the sprung hub all greased up after getting the box out.

That moly grease is some nasty stinky stuff...

Cleaned up the bearing found them to be smooth used some good red grease and repacked them.

Some gearbox love the cam plate was bad had some wore areas im sure it had some false neutral issues
I ended up swapping out the plate and plunger/spring out of my unit twin parts stash.

One of many trips threw the kerosene so dirty.
Diesel fuel down the holes over a couple decades me thinks..

 

[1951thunderbird]

Hoping to have it all buttoned up tomorrow had to wait on lifter blocks to show up.

Got this far tonight 👍

 

[newsh]

Looking good

I love that you have original paint on the rear hub and brake. The only tiny area of paint left on mine was the inside of the rear brake plate.

 

[1951thunderbird]

Looking good

I love that you have original paint on the rear hub and brake. The only tiny area of paint left on mine was the inside of the rear brake plate.

Thanks 😀
Wish I had the perseverance to restore this bike to her former glory as you did with your 52 bird.
Just to hear her breathe again will be wonderful

 

[1951thunderbird]

Todays progress .next up oil pump , cam chest cover.

Should have the engine back in the frame tomorrow 😃

 

[GrandPaulZ]

Nice! Survivor style

 

[1951thunderbird]

Progress today got the 650 back into her home 👍

Now I gotta convince myself the Lucas wiring harness will be cake.

 

[newsh]

Some good progress !

BTW.. Are your conrods white metalled or are they converted to shells?

 

[1951thunderbird]

Some good progress !

BTW.. Are your conrods white metalled or are they converted to shells?

Thanks been working on the chain case and final drive as of late.
I'm running white metal conrods Plasti gauged .001 hair over more like .0015 ish👍

 

[GrandPaulZ]

Thanks been working on the chain case and final drive as of late.
I'm running white metal conrods Plasti gauged .001 hair over more like .0015 ish

I had a crank with rods that had one less zero of clearance. Went to a "modern" (67) crank & rods with shell bearings. Sourced a proper ball bearing from Buffalo Bearings.

 

[1951thunderbird]

I had a crank with rods that had one less zero of clearance. Went to a "modern" (67) crank & rods with shell bearings. Sourced a proper ball bearing from Buffalo Bearings.

Yeouch sounds like she may have been making some knocking noises unfortunate. Wise choice on the upgrade the bearings for the later 1 piece crank are alot more reasonable price wise and replace able shells👍.
I used a mmrjn1 roller T/s and ball on the d/s on this build. m just planning on a puttin around town and back country road cruisin bike.

 

[GrandPaulZ]

Yeouch sounds like she may have been making some knocking noises unfortunate.

Well, I wouldn't know; I don't think the engine had made ANY noises for a few decades...

 

[newsh]

I had a crank with rods that had one less zero of clearance. Went to a "modern" (67) crank & rods with shell bearings. Sourced a proper ball bearing from Buffalo Bearings.

My rods had been converted to Austin Mini shells, many moons ago.

 

[GrandPaulZ]

My rods had been converted to Austin Mini shells, many moons ago.

I had heard of that conversion. Rods are bore to oversize and notched to accept standard shells. It's a very good fix.