[T3] Diagnosis help for a badly running 1971 VW 411

[Jeff C]

"  I don't know about the Type 25, but they moved to the water-cooled heads
on an enlarged capacity Type 1 quite soon in that model."
+++
The Type 25 is the Vanagon which had a air-cooled Type 4 engine in the
first couple of years, '80 and '81 and then they changed to the water
cooled version.

I wonder if any of the T3 engines were shipped to Brazil or other countries
which might explain excess engines.

Jeff '67 Sqbk and had an '80 Vanagon for 14 years.

On Wed, Aug 14, 2019 at 10:35 AM Dave Hall <dave at hallvw.clara.co.uk> wrote:

> The Type 1 engine works fine in a Type 2, but has to have different
> tinware and a foam seal to make sure the cooling air can't mix with the
> spent (warm) air.  I assume the bigger engines work just the same. In 1972
> the cooling air intakes were enlarged, replacing the pretty crescent-shaped
> ones.  They do act as scoops   I don't think there's any  internal trunking
> in Bay window Type 2s.  I don't know about the Type 25, but they moved to
> the water-cooled heads on an enlarged capacity Type 1 quite soon in that
> model.
>
> Dave
> UK VW Type 3 and 4 Club.
>
>
>
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>
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>
>
> -----Original Message-----
> From: "Jim Adney" <jadney at vwtype3.org>
> Sent: ‎14/‎08/‎2019 16:17
> To: "type3 at vwtype3.org" <type3 at vwtype3.org>
> Subject: Re: [T3] Diagnosis help for a badly running 1971 VW 411
>
> On 13 Aug 2019 at 21:18, Dave Hall wrote:
>
> > The Type 3 dual carb engine overproduction has definitely been confirmed
> > as being used mainly in the Type 2.  It was also used as an industrial
> > engine.
>
> I can definitely see this as an industrial engine, but I have trouble
> seeing
> how to fit one in a bus. I'm giving away my ignorance about buses, but it
> seems like getting the cooling air to the engine would require a complete
> redesign of the rear of the bus. Maybe VW did this redesign for '72, when
> we
> know they managed to stuff the Type 4 engine in there.
>
> Which brings up the question: What did VW have to do to the bus body to
> get cooling air into the Type 4 engine? Did they have to lengthen the body
> or
> just shorten that shelf behind the engine? Did they make airducts in the
> body
> or just seal the engine, top from bottom, and let the engine suck from the
> air
> above?
>
> Whatever they did, this would have been a different engine than what was
> produced for Type 3s. I'd expect it to get a different engine prefix. Same
> for
> industrial engines.
>
> I guess I don't know how they did this for Type 1 industrial engines.
>
> BTW, when my daughter was young, she figure skated, and one day when
> we were at the local ice rink, I managed to talk to the Zamboni driver
> after he
> refinished the ice. Turns out that this was an OLD Zamboni, and the engine
> in it was a VW Type 1 engine. The Zamboni at the rink on the other side of
> town was newer and had a Rabbit engine. Small World.  ;-)
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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