Date:         Sun, 18 Dec 2011 07:11:35 -0800
Reply-To:     Roger Whittaker <rogerwhitt1@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Roger Whittaker <rogerwhitt1@GMAIL.COM>
Subject:      Re: did I do that-Alternator Bracket
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <BAY152-ds4D4C8A35924FF358DD420A0A60@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1

Dear tight one
that is absolulty excllent add vise
regards

On Sun, Dec 18, 2011 at 7:04 AM, Dennis Haynes <d23haynes57@hotmail.com>wrote:

> Of all the fasteners on the Waterboxer the two that hold the alternator
> bracket to the engine seem to be a very common failure. Like most threaded
> fastener failures this one is usually caused by incorrect hardware or
> installation. Loct tite, lock washer, nylon locknuts are not an answer and
> more likely can create a false sense of security. Also a defective
> alternator, (bearings, rotor balance) and inadequate tightening of the
> lower
> pivot bolt add the forces that stress these fasteners.
>
> As I have stated in the past bolts, nuts, and washer come in various
> grades.
> Especially for this application if you obtained the nuts or washers from a
> parts or hardware you probably have the wrong stuff. You need property
> class
> 10.9 for this including the studs if they need to be replaced. Do not use
> exhaust studs as these are usually P.C. 5.8. Due to the forces here soft
> nuts or washer will deform and allow the connection to loosen. Locking
> stuff
> will keep the nut from falling off but the loose connection will allow the
> bracket to move slightly at first and getting worse as the new wear points
> begin to increase clearance allowing the forces to amplify and increase
> further. Eventually the stud will break form wearing through and/or the
> bracket will crack from the leveraged forces.  The front of the case will
> also be pounded.
>
> Use good hardware, properly tighten that pivot bolt. If you can adjust the
> belt tension without loosening the pivot it is too loose. Get a belt
> tension
> gauge. A lose belt can do more vibration related damage than an over
> tightened one and this one needs to tight due to the lack of wrap around
> the
> drive pulley.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Roger Whittaker
> Sent: Friday, December 16, 2011 5:55 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: did i do that
>
> dear fellow vanogonears
>
> was traveling appointed rounds today when belt was tossed two lights came
> on
> ... limp home to remedy ...
> went to tighten alternator and discovered reason for belt toss the bolt
> fastened to block under alt had broken free of block by breaking metal
> surrounding bolt ... likely last time alt was changed or put in place or
> maybe several times before and simply worried apart in my care ...
> so because i only required to make two short trips today i jury rigged to a
> tightness that survived bench test revving and continued on
> 6 k later the belt tossed again
> this time i sussed further and discovered that the other of the two bolts
> holding alt in place was missing ... i tried to place a new one only to
> discover the old one had been twisted off ...
> when indeed and how long had this issue been festering ...
> should i look askance at previous engine install or my own self for not
> giving better inspection last time i tightened the alt ... i thought it was
> unusual to have to retighten every few months ... but had begun to consider
> it regular maintenance ...
> so she was towed home today ... flat deck mounted westie getting to be the
> yearly christmas feature in my traditions and first on the list for 2012
> (unless end of world events preempt ...) fashion better alt bracket for 84
> westie with transplanted slightly larger than OEM engine
>
> a circus of events brought about in an effort to disturb my senses ...
> indeed
> regards
>
> --
> roger w
>  From Proverbs:
> Under three things the earth trembles, under four it cannot bear up: a
> servant who becomes king ...
> ----------------------------------------------------------
> Explore printed work at: http://www.prliving.ca/ View the growing list of
> video work at:
> http://www.youtube.com/user/LastonLastof#g/u
>
> http://www.prpeak.com/articles/2010/11/29/multimedia/video/doc4c62e5f80d2285
> 04902172.txt
>
>


--
roger w
 From Proverbs:
Under three things the earth trembles, under four it cannot bear up: a
servant who becomes king ...
----------------------------------------------------------
Explore printed work at: http://www.prliving.ca/
View the growing list of video work at:
http://www.youtube.com/user/LastonLastof#g/u
http://www.prpeak.com/articles/2010/11/29/multimedia/video/doc4c62e5f80d228504902172.txt