Date: Fri, 28 Jan 2005 18:09:35 -0500
Reply-To: Dennis Haynes <dhaynes@OPTONLINE.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <dhaynes@OPTONLINE.NET>
Subject: Re: 2.1 to 1.9 oil cooler retrofit design Q (longish)
In-Reply-To: <20050128160658.92037.qmail@web53507.mail.yahoo.com>
Content-type: text/plain; charset=US-ASCII
The small line on the return pipe is 7mm. The 2.1 goes down to 100 mm
hoses. Tou really do not need that much flow. You could drill/tap the
blnak cover plate for a 1/4" npt thread and use a larger fitting there
and drill, braze a larger nipple on that return pipe. I just tried to
make things easy. If you really want an upgrade, forget the water to oil
cooler thing and add a proper 16 or 19 plate cooler in front of the
radiator using a sandwich adapter and remote thermostat. This helps by
not adding the oil heat into the cooling system. My Fun Bus had had this
set up since almost new. I think it has contributed significantly to the
now 222K miles with the engine having never been touched.
Dennis
-----Original Message-----
From: Damon Campbell [mailto:damoncampbellvw@yahoo.com]
Sent: Friday, January 28, 2005 11:07 AM
To: Dennis Haynes; vanagon@GERRY.VANAGON.COM
Subject: Re: 2.1 to 1.9 oil cooler retrofit design Q (longish)
I currently have S&S headers on the van, and it clears
the oil cooler/filter combo no problem (they are both
already installed on the van - the cooler just isn't
plumbed in).
That is a pretty interesting suggestion you have
there. My main question, however, is about the return
hose from the oil cooler to the line between the
bleeder and the return pipe. That is a really small
line (like 5mm or so I.D.?). My memory is really hazy
on this part - does the 2.1 oil cooler have the short
rubber hoses than neck down to a small metal tube?
Does the 2.1 replacement cover plate on the head have
an equally small fitting? I guess i have a couple
questions, eh?
Thanks, and this sounds like a really good
alternative.
-Damon
--- Dennis Haynes <dhaynes@OPTONLINE.NET> wrote:
> Which exhust system are you using? The 1.9 exhaust
> will not clear the
> oil filter with the cooler in place. My solution is
> to replace the cover
> plate on the front of the head on the drivers side
> with a plate from a
> 2.1 which has a hose connection. This will be the
> feed. Then, install a
> tee in the hose from the bleeder valve to the heater
> return pipe to use
> as the return. The 2.1 hosses that go on the cooler
> will act as reducers
> to go from the large hose connections on the cooler
> to 5/16 or 3/8
> tubing/hose. Benefits include making the left head
> self bleeding and
> providing a path for coolant flow when the engine is
> cold. The flow will
> be about the same as the stock 2.1 set up.
>
> Dennis
=====
'84 Westy (Sparky) w/2.3L WBX
Vancouver, BC
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