My 640 lump - under Master Surgeon Minter

[Minter]

Evening all, made a start on putting Simons lump back together and giving it a lick of paint..



Cases cleaned and new main bearing and crank fitted..



Then the gearbox and selectors..



Then the oil pump..



Then the left hand case gets the heat treatment and new main bearing..



Then the bottom end gets a coat of heat resistant satin black paint..



That'll do for one night!

[Bunker]

Droool, good work Gary

[Minter]

Droool, good work Gary

I just hope i have the strength to kick start a 640 on the test bed!!

I swapped out the kick start shaft off the other motor you left as the 640 one was well pitted! Hope you dont mind!

[Bunker]

I swapped out the kick start shaft off the other motor you left as the 640 one was well pitted! Hope you dont mind!

Thats ok mate, thats Alex's one

[Minter]

Managed to do a bit more to this one today.. Here's the progress so far..

Anyone got any spare 640 rings kicking around!? It needs new ones!



Replacement Clutch, Sprag and Primary gears..

[ZIP TIE]

Anyone got any spare 640 rings kicking around!? It needs new ones!

If it is a 640 you'll need to get in touch with Omega pistons who made the rings and piston for the 640 conversion, Pete got all three rings for about £28 standard price which is a bit of a bargain

http://www.omegapistons.com/" onclick="window.open(this.href);return false;

Hope that helps

[ellrider]

Anyone got any spare 640 rings kicking around!? It needs new ones!

If it is a 640 you'll need to get in touch with Omega pistons who made the rings and piston for the 640 conversion, Pete got all three rings for about £28 standard price which is a bit of a bargain

http://www.omegapistons.com/" onclick="window.open(this.href);return false;

Hope that helps

If I'd known that before changing my rings I could have looked into oversizing my 560. I wonder how much a piston kit would cost.

Oh well, something for the next owner to look at as hopefully this'll be right for the next 70,000 miles.

[ZIP TIE]

Anyone got any spare 640 rings kicking around!? It needs new ones!

If it is a 640 you'll need to get in touch with Omega pistons who made the rings and piston for the 640 conversion, Pete got all three rings for about £28 standard price which is a bit of a bargain

http://www.omegapistons.com/" onclick="window.open(this.href);return false;

Hope that helps

If I'd known that before changing my rings I could have looked into oversizing my 560. I wonder how much a piston kit would cost.

Oh well, something for the next owner to look at as hopefully this'll be right for the next 70,000 miles.

I think the piston is approx £100 but you'd have to add the rebore and nicasil relining to that

[Minter]

Nikasil relining, about £125 last time I had it done.

Did that include reboring to 100mm as well Pete or just the relining?

[ZIP TIE]

Nikasil relining, about £125 last time I had it done.

Did that include reboring to 100mm as well Pete or just the relining?

Pete's was already a 640 but they have to bore the old Nikasil/Nicasil out before a recoat anyway, so I can't imagine boring to size would add too much if anything (assuming the barrel is suitable and has enough meat on it also)