Motor part III

Fitted crank & cam pinions. Installed top gear and a new sprocket.

From Triumph 650 rebuild

Motor part II

Fitted new shells to the rods and fitted them to the crank. Warmed up the drive-side inner roller bearing and slipped it onto the crank. Propped up the left-hand case and dropped the crank assembly into place. It hung up with 1/4" to go, so I ran a blowlamp over the case, allowing it and the outer main bearing race to ease just a fraction until the crank slid down the last little bit. Added some anaerobic instant gasket and bolted down the right-hand case.

Motor

Now that all the components have been cleaned and/or machined it's finally time to start slotting it all together. I'm delighted to say that I'm going to be assisted by Matthew (aged 7) performing his first engine rebuild.

From Triumph 650 rebuild

Head

Got the head back from Malcolm at Lancaster Engines and he's done a fine job yet again. Remaining cast iron guide has been removed, all new phosphor bronze guides pressed in, seats cut & lapped in, both spark plug holes drilled oversize and fitted with Timesert thread inserts and finally the warped head has been true up with a light skim. A fine piece of work.

From Triumph 650 rebuild

From Triumph 650 rebuild

From Triumph 650 rebuild

Shiny

Found some polishing mops & soaps in a box of stuff I inherited a while back from my late uncle. Put it all to good use tonight putting a shine on gearbox, timing & primary covers. Hope Brian would have approved. His Vincent was immaculate.

From Triumph 650 rebuild

Fairies

The eBay fairies brought me a layshaft, mainshaft & a couple of gears which means I now have enough to assemble a decent gearbox. The originals were immersed in water & sand and had turned into a sorry mess.

From Triumph 650 rebuild

Flange

Cleaned up the mating faces of the cases with a diamond hone and some WD40. This removes any nicks or dings and gets rid of the last traces of the old gasket.

From Triumph 650 rebuild