Thanks a lot Scott. I knew that I will hear from you. I knew I
will receive lots of answers from you.

I already found that the water pump is no good. I think I will
use 1.9 cooling system. So I will not use the bad pump anyway.
Glad to hear that I can use the 1.9 exhaust. But if I come across
a 2.1 exhaust system I will use it. I like the sound of the 2.1
exhaust. The sound of 1.9 exhaust is not very attractive to me.
They are always regarded as loud noise.

Yeah, I see that metal pipe end pointing up from the plenum
box. OK, I will deal with that. I will use the 1.9 cooling system as
I already have it on my 1.9.

Oh, I think the cylinder heads are OEM. Thay have VW part number and
logo on them. I do not see the AMC word on them. I guess this is a
positive sign. Of course I will have to see inside to see if there is
any cracks or bad pitting. Since the water pump is bad the heads
may have been toast. I will have to open it up to see. Hope they are
rebuildable still.

Well, the difficult part is the bottom block. I have not worked on
any short block project before. I will have to figure out if the
block is usable or not at all as Allan seemed to suggest.

One more question. Does 2.1 give more than just a kick in terms of more power? My 1.9 has 82 HP on the spec. 2.1 seems to have 105 or more?
I think anything over 100 is going to be significantly better than 80+.

Thanks again, Scott.

David

--- On Thu, 2/19/09, Scott Daniel - Turbovans <scottdaniel@turbovans.com> wrote:

> From: Scott Daniel - Turbovans <scottdaniel@turbovans.com>
> Subject: Re:      Replace 1.9 with a 2.1 WBX
> To: "David Kao" <dtkao0205@YAHOO.COM>, vanagon@GERRY.VANAGON.COM
> Date: Thursday, February 19, 2009, 5:34 PM
> hi,
> yes.....you can use the 1.9 exhaust system..........either
> exhaust system, 1.9 or 2.1 will bolt up to either engine.
> I've done it both ways.
> the 2.1 exhaust is better build and has a bigger
> muffler......
> if I had both on hand, I'd use the 2.1 exhaust for
> sure.
> The mounting and support system is 5 times better than what
> the 1.9 uses.
> if you didn't get the aluminum rear engine mounting
> bracket for the 2.1 ......which has bolt holes for the 2.1
> exhaust brackets..........two nice solid ones........you
> should have those parts too.
>
> yes, you can use the 1.9 AFM on it.
> actually...........you sort of have to use the 1.9 AFM and
> air filter box............since the main coolant hoses by
> the firewall in the throttle body area stick out right where
> they AFM and air box go.
>
> But you can keep the larger 2.1 intake runners, plenum box,
> and throttle body ........those are 'bigger' and
> you'd want them on there.
> Your 1.9 intake boot will fit right on the throttle body
> too......how convenient !
> - pretty sure.
> oh, one slight mod to the plenum box............where a
> little metal tube turns 90 degrees and points straight
> up......
> you won't to cut part of that off so the 1.9 auxiliary
> air valve and hoses can connect as before.
>
> use your 1.9 distributor and igniter with your 1.9 fuel
> injection system...............I just did that and the van
> just rips.
>
> cooling system wise.....need to convert the 2.1 to 1.9
> cooling system.
> ( or have a whole slew of plastic cooling system parts to
> convert your 1.9 van to 2.1 cooling system.........I did
> that on my 85 Wolfsburg Weekender...........I don't like
> putting in plastic t-stat housing, plastic water distributor
> etc............but you can keep the oil cooler on the 2.1
> that way . )
>
> I haven't done it, but you could keep the oil cooler on
> the 2.1 and figure out how to interface it with the 1.9
> cooling system.
> Need the 1.9 water pump on of course, if running the 1.9
> cooling system.
>
> but 'all parts' swap over between the two long
> blocks.
> one of these days I might try incorporating the electronic
> air idle valve into the 1.9 fuel system.........
> there are only a few inputs to the electronic control box
> for the 2.1 idle valve........and it is a steadier idle than
> what the 1.9 delivers usually.
> have fun !
> if anyone else wants to buy a rebuildable block........
> either 1.9 or 2.1..........I got 'em, and will sell.
> located in Southern Oregon.
> Scott
>
>
>
> ----- Original Message ----- From: "David Kao"
> <dtkao0205@YAHOO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Thursday, February 19, 2009 5:11 PM
> Subject: Replace 1.9 with a 2.1 WBX
>
>
> > I took a plunge and bought a used 2.1 WBX engine today
> from a savage
> > shop. I have been looking for a long while for a 2.1
> that can be
> > rebuilt to replace my 1.9 from my 83 Westy. I found it
> on Craigslist
> > last night. I kept calling this morning then received
> a call back
> > near noon. The engine was still available and I went
> to pick it up.
> >
> > It came with all the intake manifolds, fuel injectors,
> fuel lines,
> > fuel pressure regulator, water pump, thermostat
> housing, all 3 mount
> > harness for alternator, power steering pump, air
> conditional compressor,
> > etc. The fly wheel and pressure plate were taken off
> but are included.
> > There is no distributor but they managed to find one
> to give it to me.
> > There is also a throttle body in place but no AFM
> there. I was told
> > I could have one for extra money.
> >
> > The only major parts that are missing are exhaust
> headers and everything
> > beyond that. I could turn the crank pully a full turn
> without hearing
> > any sound that was suspicious. I believe this is
> possibly a good core to
> > rebuild from. Of course I have to take it apart to be
> sure. I was told
> > that it has head gasket leak and it was pulled 4
> months ago from a 88
> > Vanagon. It shows no sign of being taken apart
> recently.
> >
> > What I intend to do is to rebuilt it using as many 1.9
> parts on top
> > of the engine and swap out my 1.9 from my 83 Westy.
> The 1.9 engine
> > was rebuilt by me last year. But I have always wanted
> a 2.1. I need
> > more power because I went to Yosemite very frequently.
> >
> > I think this was done by many before. My first
> question is if I can
> > use the 1.9 exhaust system still. I think the answer
> is probably not.
> > The next question is if I can use the 1.9 AFM attached
> to the 2.1
> > throttle body. I can try it to find the answer. But I
> would like to
> > hear what you folks would suggest. I will look into
> the archive too.
> > But maybe this is something to discuss about one more
> time here.
> > Any suggestions on how to do a good rebuild on the
> bottom block will
> > be appreciated. I am not in a big rush. I am willing
> to take 3 to 4
> > months to get it done.
> >
> > Oh, BTW, I paid $100 for the 2.1. I think this is very
> cheap. The shop
> > said they have had it for 4 months so they just want
> to get rid of it.
> >
> > David