I have been restoring 1940 Farmall Model A. I have rebuilt the carb and had magneto rebuilt. I am now trying to fire it up. The other day I was cranking it and it backfired through the exhaust manifold blowing the cap off of the muffler. I am not sure if it is a timing issue or carb issue. I have found the compression stroke on number 1 cylinder. And cranked engine by hand so that pistion was atthe top. However i dont have a DC1-4 mark on flywheel as the manual states. I have a arrow on the flywheel. ON the flywheel cover towards the rear of the engine there is a metal pointer.
When piston is at the top of the stroke the mark on the flywheel is about 1 inch or more away from the pointer on cover. The manual states to find top dead center that the marker must be in the register. So to know if i am at TDC should the mark on flywheel be before the marker on cover or at 6'oclock. As i see if i move it to 6'Oclock it is already on the down stroke of the piston.
Any suggestion will help thanks
When piston is at the top of the stroke the mark on the flywheel is about 1 inch or more away from the pointer on cover. The manual states to find top dead center that the marker must be in the register. So to know if i am at TDC should the mark on flywheel be before the marker on cover or at 6'oclock. As i see if i move it to 6'Oclock it is already on the down stroke of the piston.
Any suggestion will help thanks