Re: [HSS] Flywheel Timing Marks

Unknown

Hudson29@aol.com wrote:

>

> At some point in the distant past, some humorless bustard machined off

> the ring gear teeth on my old '29 flywheel and installed a new ring gear. I

> call that unknown person a humorless bustard for two reasons.

> First, they seem to have cut the flywheel down too much and used shim

> stock unevenly to tighten the resultant gap. The cranking system worked fine

> on this '29 engine, so I'll probably have no worries using the same setup on

> the '26.

> The second reason for the name calling involves the timing marks. When

> they cut off the old teeth, the marks went with them, and the bright boys

> didn't bother to rescribe or repunch them! This caused a pal of mine and I a

> certain amount of consternation trying to locate the nonexistent marks by

> looking through the timing hole and hitting the starter pedal. Removing the

> flywheel cover and using a flywheel wrench revealed the ugly truth, and the

> motor was timed by ear which seemed to work out fine.

> What to do now? The flywheel is off, freshly painted and ready to be

> remarked, but where should the marks go? The only current marking looks like

> this:

>

> --|<-

>

> Is that mark significant? The only other way I can think of to mark the

> wheel would be to "copy" the marks from the '26 wheel. To do this it will be

> necessary to figure out a reference point common to both wheels (like the

> "offset" mounting stud) and count off the number of teeth. I had in mind

> punching a dot and paint filling it with white to make it stand out against

> the pointer.

> Does anybody have any comments about this? Is there an easy way to

> determine which stud is the "offset" one? I had in mind using graph paper to

> spot the "offset." Should the marks go back in the factory locations or

> "advanced" some? What tool should be used to make the marks?

>

> Paul O'Neil, Hudson29@aol.com

> Fullerton, California USA

>

Yes, I've had the same thing happen as far as the timing mark is

concerned. The mark is as you describe, just one line at t.d.c. What

I suggest you do is fit the flywheel with the mark on to the crankshaft,

line it up with the pointer, remove it, and without shifting the

flywheel, install the one without the mark, and mark it with a piece of

chalk, paint, white-out, whatever. Then take it off and make the new

mark either with a line of punch marks, or a sharp chisel.

Geoff.