Date: Sun, 3 Apr 2016 02:11:42 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Transmission Case Corrosion, Deterioration Repair,
Ground Paths
In-Reply-To: <CAB2Rwfi8zt3eVmsd5Kyk39g1O8w4ecRFP4hTSPytvXZ9HdE4Wg@mail.gmail.com>
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From the factory the transmissions and engines were coated with an almost wax like anti corrosion coating. Time and servicing of these components has removed this coating. The magnesium transmissions really get messed up from road salt and even just rain without some form of coating. Electrically with that large mounting plate with 4 bolts there is plenty of contact are and paths for that ground to make a good connection. You can use a meter to measure the voltage drop from the starter motor to the battery and then narrow down the losses from there, Then get that trans case cleaned and painted.
Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Neil N
Sent: Saturday, April 2, 2016 3:48 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Transmission Case Corrosion, Deterioration Repair, Ground Paths
Hi all.
On my '88 Westy, transmission case material at the shift linkage bushing mount point (image, not tranny in question):
http://tinyurl.com/hfr38vo
and front mount bracket to transmission mount points (image, not tranny in question):
http://tinyurl.com/zyecqly
is disintegrating and crumbling away
I'll post pics of actual corrosion soon.
I'm sure this issue is nothing "new" but does anyone know if:
- depleted material at mount points causes, in part, a poor ground path to starter?
- these mount points can be filed flat then furred out with a washer(s)? e.g. at tranny front mount bracket? Use stainless steel washer?
As an alternative or "safety", re this archive post:
http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind9404&L=vanagon&P=R13485
and other comments re: ground paths, would connecting just 1 new large gauge ground wire from the battery to the drivetrain be of any benefit?
As a side note, given the areas of rust I see at underside, and this case corrosion, I have to wonder if this bus sat unused for some time in a wet field with long grass or similar.
Neil.
--
Neil n
Blog: Vanagons, Westfalia, general <http://tubaneil.blogspot.ca>
1988 Westy Images <https://picasaweb.google.com/musomuso/New1988Westy>
1981 Westfalia "Jaco" Images, technical <http://tubaneil.googlepages.com/>
Vanagon-Bus VAG Gas Engine Swap Group <http://tinyurl.com/khalbay>
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