Timing problem

Each tooth of the flywheel is equal to 2.48 deg. (360/145 teeth).

I placed a mark on ten of the teeth. I gave the tractor a pull and connected a STROBE light to # 1 spark plug (used a 12 volt battery on a work stand)) and found that the ignition was not at the desired timing point that I preferred 25 deg.

With the throttle set so as the PTO was running at 525 RPM I turned the distributor housing until the distributor was firing at 25 deg BTDC.

NOW: Here is a note to know.

ENGINE S# SIE to S8995E fitted with Lucas dist. MODEL D3A4 Lucas SERVICE # 40132 has a hole in the flywheel at 10/100/190 and 280 BTDC number 1 cylinder.

ENGINE S# S8996E onwards fitted with Lucas dist. Model D3A4, Lucas service No. 40146 has a hole in the flywheel at TDC # 1,as well as 90/180/and 270 deg before TDC.

CORRECT LOCATION OF TIMING PIN IS TDC of firing stroke # 1 cylinder.

I did notice that on U-TUBE there is a video of some one checking a TEA 20 igniting timing In the above procedure that I checked mine. Also in the FERGUSON ARCHIVES TEA20 Back to life a posted picture of a Ferguson WITH timing marks on the FWD face of the flywheel

NOTE* Several drilled holes through the FLYWHEEL....

At one point in time,I read,depending on the MODEL of the DISTRIBUTOR makes a difference as to the point of static timing the distributor.

I'm away from my summer residence for several months,thus, I do not have the Maintenance Manual with me..
Bob..

From where I am sitting, it sounds like two weeks in Waikiki. How much money have ya' got?

On the Forward Face of the Flywheel,there is a DRILLED hole that aligns with a hole in the Engine block that attaches to the Transmission.

With # 1 power cylinder on the compression stroke,insert a DOWEL (Drill Shank,etc,etc,) that locks the flywheel to the Engine.

Inset the Distributor,turn distributor until POINTS JUST start to open...

Lock distributor in place...
In the direction of the rotation of the ROTOR,attach spark plug leads in the proper firing order.

It is possible, that NOT ALL of THESE MODELS of TEA-20s have only ONE drilled hole in the FORWARD FACE of the FLYWHEEL..??
My TEA-20 has only ONE hole in the forward face of the flywheel..