T-2 Exhaust

Bob Ingman · Post by **Bob Ingman** » Tue Sep 18, 2001 3:02 am

Thanks Scott, sounds as if it may interchange.One engine (the one I`ll be using) is a 75 1.8L, the one with the new exhaust is a 78 2.0L hyd.Not a 79 with square ports.Just put on new exhaust before engine went bad. The 1.8L is a temp while going through the hyd. engine.Good Luck. Bob

Bob Ingman · Post by **Bob Ingman** » Wed Oct 03, 2001 5:29 pm

Nate or anyone else in the know heres the deal. I have an good 1800 with bad heater boxes and muffler. I alse have a bad 2.0L with very good heater boxes and muffler. Can I install the good stuff from the 2.0L onto the 1.8L and have a functioning heat and exhaust system? Thanks and Good Luck. Bob

Bob Ingman · Post by **Bob Ingman** » Thu Oct 04, 2001 1:20 pm

Thanks Nate, one engine is in Oregon and one engine is with me here in Alaska. I`ll get it figured out. Meanwhile, anyone else care to advise? Good Luck. Bob

Thumposaurus · Post by **Thumposaurus** » Thu Oct 04, 2001 11:31 pm

I'm not sure about them being interchangable, but I do know that when I got a new heater box(the flange broke off while I was takeing it off)I had to break out the dremel tool and do a little light macheining to make it fit properly. But it can't be that muchh different can it?

vwnate1 · Post by **vwnate1** » Fri Oct 05, 2001 12:36 am

EEK ! typ IV questions ~ I'm not very good at them , sorry I just don't work on typ IV products much.
I'd just put it up on a hoist (jackstands) and crawl under , new parts in hand and match 'em up - either they'll be same or very different . I went through all that with my old 914 2.0L but forget I'm sorry to say . too bad you're so far away as I have a NOS muffler just sitting waiting to sell . I know there are several different configurations of heater box/muffler flanges so look sharp before buying anything ! .

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-Nate
Filth & Greed Imports
(the LAST honest VWshop)

germansupplyscott · Post by **germansupplyscott** » Sat Oct 06, 2001 11:08 am

there is an answer to your question but it is not simple. here is the simplified version:

the 1.8l head will always have oval exhaust ports. the 2.0l head will have oval exhaust ports, unless it is a very late bus (1979) or any from a vanagon. so that effects the heater box bolt-up. if the ports on the 2.0l are the later square type there is no interchange on the ports. vanagon heater boxes are completely different in the way the pusher fan attaches, so they don't interchange with anything else.

the other thing to look for is the pusher fan openings on the heater boxes. there are a few differnent kinds which do not interchange. most right side heater boxes on late vans are the same, maybe all late bus ones are the same, i'm not sure. basically, any late CA bus has a different left side heat exchanger and exhaust. if your 2.0l motor has a catalytic converter, the chances are likely the parts may not interchange from 2.0l to 1.8l. if no catalyst, chances are they will interchange.

a good welder could make things work by swapping over the ends of the heater boxes from one set to the other, but his would be a bit tricky get it all to align correctly and possiby give you poor flow through the exhaust (might be a lot cheaper tho...)

as i said, this is simplified version. there are quite a few versions of the exhaust/heater box on the vans after 72. it can be confusing. when i restored my 1979 van i spent a good hour at the dealer with the EKTA program (and an understanding parts guy) looking at the drawings of the various years, just to be sure i got things right. if this is an option for you, it can be very helpful, and they can print the exploded views for you, too. bus boys has some of these diagrams on their website, as well.

hope that helps.

scott lyons

Derek May · Post by **Derek May** » Sat Oct 27, 2001 1:39 am

Bob:
Not sure if you've sorted this out. I've a 1976 2.0L. I've done some research on the exhaust systems, mine is an "odd duck" with the headers heading straight towards the front of the van, then a 180 elbow section, then into the heat exchangers. The elbow sections can't be replaced. Aircooled.net promotes swapping the system to the other heat exchangers, where the headers go into the exchangers, then out to exhaust.

So long as you don't have the square heads, the systems can be interchanged, but may require swapping some cooling tin and muffler as well, depending on if one of your systems has those elbows like mine or not. If neither do, its probably a perfect match.
If one does, then you need to take some of the engine tin, heat exchangers and muffler from the Doner to the recipient.

DallasVWDriver · Post by **DallasVWDriver** » Sat Oct 27, 2001 1:52 pm

You should post your question on the Type IV forum. There are lots of people that seem to have lots of experience that post there.

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Perry

"The only stupid question is the one never asked."

Bob Ingman · Post by **Bob Ingman** » Sat Oct 27, 2001 4:26 pm

Perry, actually this is a dual post and was also listed on t4 forum as well. More knowledge there on engines in general but seems to be more here on type 2 in particular. Tjhanks and Good Luck. Bob

Bob Ingman · Post by **Bob Ingman** » Sun Oct 28, 2001 12:39 am

Darek, No I still hav`nt got it figured out. I have a good 1800 engine with bad exhaust and a bad 2.0L with good exhaust. I`m hoping to set them side by side and put the good exhaust onto the good engine. Sounds promising so far. Thanks and Good Luck. Bob