[T3] Question about 73 T-3 oil cooler mounting.

Jim Adney jadney at vwtype3.org
Thu Oct 12 05:51:17 PDT 2017

On 11 Oct 2017 at 22:48, Bobsnotch at aol.com wrote:

> I would just like to know what was used as far and washers and  lock
> washers on the one stud and 2 bolts. 

Originally, the bolt heads were on the underside and on top there was a thin 
flat washer, a wavy washer and then the nut. Doing it this way requires 
putting the bolts in place before installing the cylinders.

The thick spacer washers were used only up thru '69, and those engines 
also had a tiny sheet metal piece installed around the case lugs which kept 
air from leaking out thru the space under the cooler. Starting in '70, the 
spacer washers and the sheet tin bit were dropped, and the cooler seals 
were much thinner.

When rebuilding a '70 or later case, I usually add a thin wavy washer or 2 
between the cooler and the case, on each of the 3 bolts, but this depends on 
how hard the cooler seals are. Many of the late cooler seals available today 
are quite hard and would require way too much force to compress the cooler 
all the way down against the case.

I like Bob's approach of using Nylock nuts if you end up installing the nuts on 
the underside.

Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA

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