I have a writeup on my website on this subject.  I used the existing 1.9
cooling and FI system for simplicity. I used my existing auto trans, but it
would probably be better to use the manual box in your case.

http://www.oldvolkshome.com/19to21.htm

Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
Full Timing From March 1999 To January 2012
oldvolkshome@gmail.com
http://www.oldvolkshome.com
Find me on Facebook:
http://www.facebook.com/people/Jim-Thompson/100000710343835
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On Tue, Sep 15, 2015 at 7:49 PM, Rick Cooper <rickdcooper@gmail.com> wrote:

> I've been fixing up a 1983 Westy that I got for cheap last year because it
> needs major repairs to its manual transmission.  This past week I found an
> '86 tintop in reasonably decent shape that was being sold because it leaks
> coolant when the engine gets hot.  I haven't had a chance to remove the
> engine shrouding yet, but the leak is a stream that appears at the lower
> part of the shrouding under the right hand head.  I'm guessing this is a
> head gasket problem.  The vendor tells me that the leak had just happened,
> not far from home, and that he'd not driven it since.  I added some water
> and drove it 5 miles home -- no leak at all until I let it idle at home a
> while and the temp gauge was up past the half-way mark.  I killed the
> engine at that point and have not touched it since.
>
> Can I swap both the transmission and the engine (once repaired) into my
> 1983 Westy -- which is now freshly painted, interior restored and awaiting
> a transmission.  It would be great it I could replace the 1.9 with this
> 2.1.  If this is doable, what other components do I need to bring along
> with the engine?  Which reminds me, where is the ECU in an 1986 tintop?
> Not in the LH rear corner as per my '83 Westy and not under the seat as it
> is in my 1987 daily driver.  Is it the electronic device in the RH rear
> corner adjacent to the air intake pipe; if not, what's that?
>
> So much to learn about these vehicles but I've sure been having fun with
> them!  My wife says I've developed an addiction.
>
> Rick
>