Date:         Fri, 21 Sep 2007 12:31:49 +1200
Reply-To:     Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Andrew Grebneff <andrew.grebneff@STONEBOW.OTAGO.AC.NZ>
Subject:      Re: OHC heads on VW luftboxer?
In-Reply-To:  <1b0df96d0709192031l78218be3i8669f5ba13d7ea1a@mail.gmail.com>
Content-type: text/plain; charset=iso-8859-1; format=flowed

>I wonder why would you want to do this? One of the beauties of the
>WasserBoxer is lack of timing belt (direct drive from crankshaft) and
>no valve clearance adjustments (hydraulic lifters), Wouldn't it be a
>pity to give it all up?

I don't want to do it, it was just an interesting thought. I do know
of someone in Australia who build his own motorcycle... he MADE the
DOHC engine from scratch as well.

Most OHC engines have hydraulic valve-adjusters.

>Right now I can't even think of any "OHC air cooled car engines"  other than
>an NSU rear engine, OHC air cooled inline four, mounted sideways, in the
>rear.   A late 70's era car. I did a head job on one once.
>( hmmm.....porsche racing engines, from the 60's. - those are 4 cylinder,
OHC air cooled car engines )

Tatra V8s were DOHC and aircooled. Aircooled 911s... they were all
SOHC, and changed to DOHC with the 959 (with watercooled heads) and
its watercooled descendants. An aircooled 911 head might be
modifiable for use on a VW engine; cams might be modifiable to take
belt pulleys. Subaru heads might be the berries, but you'd need a
watercooling system, with a smallish radiator... and you'd need a
Type 4 base (well, who in their right mind would hop-up a Beetle
engine anyway? Grenade...). Good for an aircooled T3 or earlier bus?
Radiator could be mounted in front of the front torsionbeams.

Heck, has anyone tried stretching a VW aircooled by 2 cylinders??

I have heard that a VW Type 1 head will fit directly onto a Fiat 500
Bambino aircooled parallel-twin engine... if so it would have to be a
1200 head, and what would that say about Fiat's designers?
--
Andrew Grebneff
Dunedin
New Zealand
Fossil preparator
Seashell, Macintosh, VW/Toyota van nut
‚ Opinions stated are mine, not of the University of Otago
"There is water at the bottom of the ocean"  - Talking Heads