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Old 05-03-2020, 10:09 AM   #1
hudson32700
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Default Front engine mount

Why was the brass washer at the bottom of the front engine mount replaced by a flat washer and when?
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Old 05-03-2020, 12:02 PM   #2
RB_Nielsen
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Default Re: Front engine mount

I just replaced the front motor mount that had "just the washer" installed, and the center bolt was about worn in half. The washer did not appear to do the job that the new brass bushing I used to replace the plain washer might do.
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Old 05-03-2020, 12:06 PM   #3
john charlton
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Default Re: Front engine mount

The flat washer allows lateral movement of the front motor mount frame flexing over rough roads etc etc . The brass washer had a step which entered the cross member thus restricting sideways movement . Look in the Service Bulletins that will tell you when the change occured

John in Suffolk County England .
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Old 05-03-2020, 12:10 PM   #4
Ernie Vitucci
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Default Re: Front engine mount

John has built Model 'A's from a bare frame to a complete machine...when no two parts had even met before...He knows! Ernie in Arizona
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Old 05-04-2020, 11:19 AM   #5
Bob Bidonde
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Default Re: Front engine mount

The brass bushing was replaced in production about January of 1929 because it was thought to restrict lateral motion of the engine, thus transferring vibrations into the frame.
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Old 05-04-2020, 11:24 AM   #6
The Master Cylinder
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Default Re: Front engine mount

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This from Bratton's catalog "The brass washer was used from Nov. '28 thru Jan. '29 then it was replaced with a steel flat washer. It is believed the brass shouldered washer restricted the yoke stud from moving side-to-side when one wheel went into a pothole, thus putting too much stress on the stud."
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Old 05-04-2020, 05:50 PM   #7
hudson32700
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Default Re: Front engine mount

Thanks to all for the information.
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