[T3] Tight Engine

[Jim Adney]

On 1 Aug 2018 at 22:15, Keith Park wrote:

> This may be a better idea than sucking it thru the tiny T4 one, but then
> again, thats what they did...

>From what you're saying, I get the impression that the T4 inlet bellows is 
smaller than the T3 one. If that's the case, would it be possible to cut the 
bellows mount rim out of a T3 pulley housing and marry it to the T4 inlet 
housing? That would allow you to use the larger T3 inlet bellows.

I don't remember what this looks like on a T4, but I do recall that the T4 tin 
has to have a gap there to let the alternator belt out. On the photo that 
William showed from thesamba, that's been converted to an enclosed belt 
and alternator pulley, a la T3. Nice idea, but a lot of work to fabricate well.  

Such a housing also has to provide for swinging the alternator to adjust the 
belt tension, since the T4 alternator uses a pulley with fixed sides rather than 
the shim adjustable pulley as used on T1, T2, & T3.

The T4 alternator also gets cooling air via a rubber tube which feeds 
pressurized air in it's backside that exhausts behind the pulley. I assume 
your setup is the same.


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