How do you measure 4 deg timing

[Alf]

Hi all, I have slot the holes with 3 mm on the stator but the markings apart is not 4 deg if measured, so how do you know it is 4 deg, can it be measured?
Tx

 

[Blaaster]

Hi all, I have slot the holes with 3 mm on the stator but the markings apart is not 4 deg if measured, so how do you know it is 4 deg, can it be measured?
Tx

What makes you think it is not 4deg?

A stator plate of 3mm rotation should put the timing at 4deg.

It can be measured with a protractor, or a timing disk.

 

[sicivicdude]

The correct way to measure timing is using a degree wheel attached to the crankshaft.

A 3mm slot is approximately 4 degrees of crankshaft rotation.

 

[Larry's Shee]

IIRC you can only turn it just so far because of PU coil. If it starts deto back it off a hair

 

[Alf]

It can be measured with a protractor, or a timing disk.[/QUOTE]

I did use a protractor and I know it is not the right way because the markings were about 2 deg on the protractor.
I was just curious about it would like to have it as accurate as possible.
Tx all

 

[Blaaster]

A stator plate of 3mm rotation should put the timing at 4deg.

This is a close a dammit is to swearing.

 

[best]

I did use a protractor and I know it is not the right way because the markings were about 2 deg on the protractor.
I was just curious about it would like to have it as accurate as possible.
Tx all

Doesn't need to be accurate. You are just going to advance it only enough to get a power gain.
It is a "try and see" sort of thing. Just make sure you still have the original marks to go back to.

 

[Awk08]

you measure 4 degrees of timing advance from the size hole it puts in your piston from detonation !!!!!

that outta liven this thread up

 

[best]

you measure 4 degrees of timing advance from the size hole it puts in your piston from detonation !!!!!

that outta liven this thread up

My rule of thumb has always been to advance it until it blows, and back off 3 degrees. Not 4, but exactly 3. This is important.

Ever load ammo? I got pretty near the same rule of thumb...

I know a couple guys who tighten bolts pretty near the same way.

 

[best]

Take the diameter of the stator (in mm's) where your timing marks are, multiply it by Pi (3.1416).
Take this number of mm's around the stator and divide it by 360 degrees.
The answer is how many mm make one degree.

So if the stator is 100mm (as an example) in diameter, multiply it by 3.1416 = 314.16
now divide 314.16 by 360 = 0.87mm per degree
4 degrees would be 0.87mm x 4 = 3.48mm

The real answer is to bump your stator ahead little bit by little bit, aware of what changes it makes and reacting to those changes.