Re: [AMC-list] failed 195.6 OHV oil pump....

[Joe Fulton <piper_pa20@xxxxxxxxxxx>]

Tom,
 
I vote for stock.  You have to trust that those engineers in the engine lab in Detroit in the 1930s and 1940s weren't just putting in their time. They were making changes and recording the results to end up with a dependable combination of parts that would last however long corporate management dictated that they last.
 
Joe Fulton

--- On Fri, 7/2/10, tom jennings <tomj@xxxxxxx> wrote:


From: tom jennings <tomj@xxxxxxx>
Subject: [AMC-list] failed 195.6 OHV oil pump....
To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx>
Date: Friday, July 2, 2010, 12:23 PM


So! Turns out Nash built in .015" total gear end clearance for a
reason! The pump runs at a 45 degree angle, cover down; the driving
gear probably runs the passive gear downward. Nothing retains the
gear, it rests on the cover. How it ever works I don't know. I looked
at the two old, used covers I have, there's slight scoring, totally
normal looking.

IMy dilemma: do I proceed with my modified pump with the stock body for
the huge, sloppy Nash clearance? Or put it back to stock
configuration? I would proceed with my modified pump, except one
thing: the stock covers are cast iron, and mine is steel. I wonder if
when the steel gear lands on the cast iron, it has a different
relationship, friction-wise, than a steel cover? I now know at this
point that many things in this engine indeed rely on such subtleties.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20100702/e627f62a/attachment.htm>
_______________________________________________
AMC-list mailing list
AMC-list@xxxxxxxxxxxx
http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com