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I have again looked at everything more with more emphasis on marks.

When the crankshaft is at OT (OT showing in lower half of timing hole), the keyway is at 9 o'clock. There is definitely no mark on the crankshaft sprocket, but with the flywheel correctly installed it doesn't need one.

The camshaft sprocket actually has a mark (it is faint so I didn't see it before) which lines up with keyway which is now at 12 o'clock.

Seems this is how it's supposed to come together.

I can send you instructions on how set up the camshaft/crank relationship on a triumph t110 if this helps? I think that the principles are the same?

I'd love to read that, Charles. You should have my email address, no?

Stephen, I will scan and send sometime today

Stephen, I think everyone else had provided most of the obvious answers and looks like you are on your way. I'd like to ask since I have never had a bottom end off of a bike, is this where you are at with this and would that be the reason you don't just assemble the engine and use a degree wheel and dial indicator or many of the other (many less involved) methods for the alignment - so that the bottom end can be missing all of these parts to get it back in/on the bike?

I am sure I am not asking the question in a very good manner, but... Well, so is the engine on the bike or on a bench; perhaps that is all I'd need ask? Only inquiring as one day my engine will be out; I'm doubtful I'll run into this, but you never know. Thanks in advance as I'm merely curious.

dwire,

This isn't a hypothetical question: the short block is indeed on the bench awaiting further assembly. It has only crankshaft, camshaft, their sprockets, the oil pump/cover and the flywheel assembled, no camchain as of yet. So yes, I need to assemble the engine and for obvious reasons want to get it right the first time. It seems the keyways are the give away.

Stephen

Are you running the 60/5 cam, a 308 cam, or a 336 cam?

Has the flywheel been properly installed and does it remain unmodified?

Do you have a dial indicator?

If you are running the double-row chain the marks on the sprockets can be EXTREMELY difficult to see. Have you used a VERY bright light and hand lens to look for them?

John Falconer wrote:Are you running the 60/5 cam, a 308 cam, or a 336 cam?

Has the flywheel been properly installed and does it remain unmodified?

Do you have a dial indicator?

If you are running the double-row chain the marks on the sprockets can be EXTREMELY difficult to see. Have you used a VERY bright light and hand lens to look for them?

I am using the stock R60/5 cam
Flywheel assembly: I guess so (work was done by Boxerworks Services)
yes: double row sprocket (will follow your "bright light" advice)
No, don't have a dial indicator on hand.

Stphen, when I replaced my chain, I noticed timing marks at the back of the cam sprocket. Why in the back I can't begin to say.