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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!inuxc!pur-ee!uiucdcs!irwin
From: irwin@uiucdcs.Uiuc.ARPA
Newsgroups: net.auto
Subject: Re: Intermittent starter problem
Message-ID: <7700051@uiucdcs>
Date: Mon, 19-Aug-85 18:37:00 EDT
Article-I.D.: uiucdcs.7700051
Posted: Mon Aug 19 18:37:00 1985
Date-Received: Sat, 24-Aug-85 03:33:08 EDT
References: <692@whuxl.UUCP>
Lines: 9
Nf-ID: #R:whuxl.UUCP:-69200:uiucdcs:7700051:000:530
Nf-From: uiucdcs.Uiuc.ARPA!irwin    Aug 19 17:37:00 1985


I would bet that the armature is rubbing the fields in the starter. When
the starter gets very warm from the warm engine, the armature and the
fields expand. If the clearance between is very close when cold, it will
be even closer when hot and may actually touch. If the bearings in the
starter are worn slightly, it could allow the armature to shift to the
side slightly, causing the low clearance. You would have to remove and
disassemble the starter to look for signs of wear on the fields or the
armature to prove the theory.