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Mart · 12-13-2017, 05:50 PM

JSeery: You might be able to help with this:

I looked at the pics posted by JSeery in post 88. I blew them up and studied the relationship between the keyway and the ends of the teeth. I'm 99% sure the relationship is different if viewed from the rear rather than the front.

What I'm saying is that it would be impossible to correctly time the engine if the gear is fitted backwards.

If I had a gear in front of me I could scribe a line through the centre of the gear past the centre of the keyway. I would do this on both sides and look at the relationship between the line and the tooth.

From the pics already posted they look different, but the angle the pics are taken at is not ideal for making an exact judgement.

Can anyone help with that investigation?

Mart.

12-13-2017, 05:50 PM	#129
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,756	Re: Rebuilt Flathead Problems. JSeery: You might be able to help with this: I looked at the pics posted by JSeery in post 88. I blew them up and studied the relationship between the keyway and the ends of the teeth. I'm 99% sure the relationship is different if viewed from the rear rather than the front. What I'm saying is that it would be impossible to correctly time the engine if the gear is fitted backwards. If I had a gear in front of me I could scribe a line through the centre of the gear past the centre of the keyway. I would do this on both sides and look at the relationship between the line and the tooth. From the pics already posted they look different, but the angle the pics are taken at is not ideal for making an exact judgement. Can anyone help with that investigation? Mart.