Neil:

I have an anaerobic sealant that I use on old airhead engines …. it’s been a while, so the tube is probably past its still serviceable state.

 
> On 23-Jul-2016, at 15:30, Neil N <musomuso@gmail.com> wrote:
> 
> I know that the stud and bolt that fasten the starter to housing should suffice
> but would wonder if adding sealant, or the wrong type of sealant, or too much,
> would inhibit ground path to starter at all?
> 
> Were it me, I'd use an anaerobic type sealant as I think that's what
> the VW stuff is.
> 
> Neil.
> 
> On 7/23/16, Roy Nicholl <RNicholl@nbnet.nb.ca> wrote:
> 
>> Thanks Alistair & Neil,
>> 
>> I figured it was primarily a water seal, but their may have been an
>> anti-corrosive role as well.
>> 
>> I have lots of silicone caulk around … we just finished siding a building …
>> but I think I have some silicone gasket paste which I can use.
>> 
>> 
> 
> -- 
> 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>