Thread: Mercury crank
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Old 10-18-2019, 02:14 PM   #8
Tim Ayers
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Join Date: May 2010
Location: NJ
Posts: 6,233
Default Re: Mercury crank

Quote:
Originally Posted by GOSFAST View Post
I have about 10 Flathead Ford/Merc cranks here at the moment. All are 8BA style, later pieces!

They both measure about 7.000" across the front c/weights, if there is any difference it is immeasurable with a conventional ruler.

The plugs are another story, the Merc is .625" (5/8") like mentioned above. These actually lend themselves very well with this size to drill & tap fpr a 3/8" NPT pipe plug, requires no add'l drilling. We do these all the time!

Thanks, Gary in N.Y.

P.S. Here's a shot of a Merc on one of our balancers now getting balanced. On the left I wrote the dimension (7.000") in "chalk" to show the span of the c'weight, on the right that single line shows the pressed-in oil plug, it measures 5/8". I can supply a shot of the front c'weight on the 239" Ford also if necessary?

Gary: Check the width of the 2nd counter weight in from the one with the chalk line. Is there a difference between the two widths of this weight? That's the one I've always checked.

Last edited by Tim Ayers; 10-18-2019 at 02:31 PM.
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