Date: Wed, 2 Nov 94 8:54:40 PST
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: David Schwarze <schwarze@superc.nosc.mil>
Subject: Re: Engine Disassembly, EGR, Air Pump
Peter Williams writes:
>
> Some of the tin is very rough (rusty). In fact, it is a real mother getting
> the screws out (screwdriver ...nope... vise grips ...nope...
> chisel...nope... drill). What is recommended for cleaning up old engine
> tin?
Take it all to a machine shop and have it "hot-tanked". Then paint it
your favorite shade...
> Not to my suprise, the air pump is frozen solid and the EGR is all clogged
> up. Disposing of the air pump and associated equipment appears trivial,
> but I am not sure how the EGR system is attached to the heads. A pretty
> wimpy peice of pipe sticks out of each head near the intake port. Is it
> possible to remove this and plug the hole? I expect that a motor tuned to
> run without the aforementioned pollution controls will pollute less than
> with non-functioning pollution controls attached.
Yes, those "pieces of pipe" simply unscrew from the heads.
>
> I have seen big-bore cylinders advertised for the 1700 (96mm vs 90mm) are
> these an easy swap, and would there be a noticeable increase in power
> without replacing the stock Solex's or exhaust?
They are an easy swap, yes. If I'm not mistaken, 90mm = 1700cc,
93mm = 1800cc, and 96mm = 1900cc. I had the latter on my bus when I got
it, and the motor was in sad shape. Upon examination, I decided that the
1900cc kit had *very* thin cylinder walls - too thin. So, when I rebuilt
the motor I went with the 1800cc kit (93mm, I think). I don't know if it
made a difference in power, because It never ran well as a 1.9. If I
had it to do over again (and I'm sure I will, shortly) I will swap the
internals for 2 liter parts (rods, crank, pistons & liners). It's a
direct swap, and the extra displacement comes from a longer stroke, not
thinner cylinder walls (I think the 2 liter cylinders are 91mm bore).
-David
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David Schwarze '73 VW Safare Custom Camper (Da Boat)
SAIC Comsystems, San Diego '73 Capri GT 2800 (Da Beast)
schwarze@nosc.mil '87 Mustang Lx 5.0 (Da Bruiser? Soon...)
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