RE: [DML] Angle Drive
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RE: [DML] Angle Drive

As much as I have spent so far on R&D of the new drive and being almost
twice the size in body and gears and the MTBF I feel it should be a very
very good unit. The factory has studied the Smith new one and defective one
and also had the same problems that you are talking about. 
Maybe if I can get the final number and price tied down the " John Drive "
won't go the way of just having to accept standing Sta'tus quo'. 
John Hervey
Trying to build better parts.


-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
Sent: Tuesday, March 10, 2009 8:59 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: Re: [DML] Angle Drive

The gear teeth in a Smith's Industries drive are very small and do not mesh
deeply at all. Combined with the natural tendency to bind because they are
rotating into each other, it is a recipe for failure. The brass bushing that
holds the spindle gear is also liable to wear oblong, further exacerbating
alignment problems (usually on the vertical axis). Altogether it is a very
unfortunate design. 

Every time angle drive deficiencies are mentioned, some owner pipes up with
a "my angle drive is fine after 500,000 miles" story, as if that one
instance is supposed to invalidate the legions of owners who have suffered
repeated angle drive failures. Shear numbers speak louder. The vast majority
of DeLorean owners have suffered angle drive failures, usually multiple
times. It is a badly designed part that suffers premature failure -- period.

Bill Robertson

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