No timing mark.

[MikeDeY]

Good day!

I've been slowly rebuilding my Roadster. Was in the process of re-installing my camshafts when I realized there's no timing mark on my crankshaft. What's the best way to figure out TDC? I know I can look into the spark plug port and watch the pistons, but is there a more exact way?

 

[warp9.9]

Good day!

I've been slowly rebuilding my Roadster. Was in the process of re-installing my camshafts when I realized there's no timing mark on my crankshaft. What's the best way to figure out TDC? I know I can look into the spark plug port and watch the pistons, but is there a more exact way?

The timing marks are on the crank gear and casting in the block in the opening above the front of the crankshaft the picture blow does not have the crank in the engine

the timing marks on the crank are circled in the picture below.

hope this helps

 

[MikeDeY]

The timing marks are on the crank gear and casting in the block in the opening above the front of the crankshaft the picture blow does not have the crank in the engine

the timing marks on the crank are circled in the picture below.

hope this helps

Ah, there they are. The book shows them on the smaller gear more easily seen from the inspection port. Thanks!

 

[warp9.9]

Ah, there they are. The book shows them on the smaller gear more easily seen from the inspection port. Thanks!

Here is a look at them with the front engine cover/Blower cover on. I was working on a quicker turn around time on the wrenching.

This is thru a scope down from the top between the cams.

 

[MikeDeY]

Yeah I found them on mine. Now I just need a buddy to come hold the camshafts in place while I fit that little tool into the sprockets.

 

[warp9.9]

A 25/32 wrench fits the hex on the cam shafts behind the first bearing journals.

 

[MikeDeY]

25/32? Where in the world did you find that size? But yeah, I was just thinking about cutting a wrench down to fit. Just gotta find one I don't mind doing that to.

 

[Neville Lush]

Sort of like a 20mm spanner.

 

[warp9.9]

Yes 20 mm will also work as it is .006" larger then the 25/32.

Myself since I worked for so many years on ships and aircraft I have a lot of English standard wrenches so I went with the first one that fit and I have not used in years. I am slowly collecting metric tools so I do not have as many to cut up.

 

[Neville Lush]

Same size as a Laverda 1200 Mirage sump plug. Warp, I reckon there will be more than .006" variation in them anyway as they are as cast, the hex on the cams that is.