Re: [T3] Engine Case Question

[Jim Adney <jadney@vwtype3.org>]

On 23 Oct 2004 at 23:08, John Jaranson wrote:

> So my questions is on the case.  After stripping it most of the way 
> down a noticed an odd lump/bump in the top of the case over the #3 
> cylinder.  It was metal and looked like weld.  Maybe an inch by an inch 
> and a half.  After splitting the case it is clearly a welded up hole.  
> You can see a few pictures of it here:
> 
> http://mywebpages.comcast.net/jaransonT3/SophysEngine/SophysEngine.html

Something must have gotten pinched there, but it's surprising that it left no 
other marks. I suppose it's even possible that something happened to this 
case/engine from the outside.

You will want to weigh the rods and make sure they are a matched set; if they 
aren't, get a matched set to balance. If the case has been align bored 1 mm or 
more oversize, then you will not be able to buy main bearing sets that include 
the steel backed #2 main bearing halves. They won't be as strong.

Clean the case up and bolt the halves together around the outer edges, then 
reach in to the #2 main bearing saddle with a .004 feeler gauge and check to 
see if there is a gap there between the case halves. If there is, this case may 
be deformed.

I agree with Berg that shuffle pins are only a band-aid. Don't go that route. 
If you use a counterweighted crank and balanced parts, and set the end play 
correctly, you won't need them.

The left side of the rear mount crossbar is a good place to mount the full flow 
oil filter.

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~