I discovered the wrong mechanical tach drive adapter and drive dog, was attached to the inlet cam when the engine was rebuilt by the previous owner.
My question: how do I remove the drive dog on the inlet camshaft with the engine in the car? I have a long, 6 point socket that will fit on the drive dog but, will the inlet camshaft turn or be mis-adjusted when I turn the wrench to loosen the drive dog? Do I need to prevent the camshaft from turning, how would I do this?
On the other hand, I can leave the drive dog on the camshaft but, will have to buy a new $200+ angle drive.
I’m assuming, by changing the drive dog, I can avoid replacing the angle drive and use a cable from the clockwise sweep, 4:1, tachometer to the generator on the camshaft.
Thanks in advance for any comments.