Rod to hold the timing disc...
- Thread starter Bazlerker
- Start date
I have a brass one too that I made, tapered one end in the lathe, 7 degrees I think, from memory, put a short thread on the other end so that I could attach the disc with 2 nuts
I have generally used a pushrod - ET43 - with the disc mounted on a tight rubber block.
VOCspares - DEGREE PLATE - STEM K36-1
I just ordered from VOC spares...mine is not to be found, very odd. I was rather hoping to time my newly refreshed mag and go for a ride this weekend. The downside of living in the colonies is that now my ride is postponed a fortnight ..insert expletives here.
Hello Bob, How about just under 1/2" before T.D.C. We can't miss out on a ride !!. Cheers Bill.
Forget the device. I carry in my toolkit a cheap, thin 6" machinist's ruler of the type shown at this site, except one with inches on one side and mm on the other:
http://www.walmart.com/ip/General-Precision-Stainless-Steel-Ruler-Stainless-Steel-6-in/17038024
These rulers are narrow enough to enter the spark plug nearly vertical. Get the engine close to TDC, insert the ruler, and rock the engine back and forth until you've found TDC to within a half-mm or so. Slide the clip down until it makes contact with the head, i.e. so that if the engine is rotated past TDC and the piston moves down the ruler won't move.
Remove the ruler, note where the clip is on the mm scale, then add 12.3 mm (for a Rapide; 11.9 for a BS). Slide the clip to that new location and drop the ruler back in the spark plug hole. Rotate the engine backwards until the clip of the ruler again makes contact with the head. Don't worry if you go too far. Rock the engine back and forth until you're happy you found the right place. Your Rapide is now at 39-deg. within a fraction of a degree.
If you insist on buying an all-Imperial ruler add 31/64" to whatever no. of 64ths you find at TDC. Better yet, take the time to find a shop that sells one with a metric scale. Surely, even in Canada they have metric scales...
Bring it over in the morning and I'll set it up for you, I have a couple of sets gear for doing that. I'll be back from Sat morning breakfast about 9:30
I used to have a pencil with lines at TDC and 1/2" BTDC to poke down the plughole - timing a cooking Vin motor with a mag isn't rocket science.
Most important thing to remember mark lines from the blunt end, or timing gets a bit retarded when you sharpen the pencil.
H
Most important thing to remember mark lines from the blunt end, or timing gets a bit retarded when you sharpen the pencil.
H