Jay Gratton

Do SS Heat Exchangers from a 1.8 fit a 1.7? Thanks guys!

Peter Zimmermann

Jay, you must look at them; it's a "if it walks like a duck, and quacks like a duck," kinda deal. The 1.7 liter and early 1.8 liter use the same heat exchangers. 022 256 091 F (left) and 022 256 092 F (right). Those heat exchangers do not have a forward (under the engine) joint flange; they attach at the exhaust ports and are one piece to the muffler flange.

Later 1.8s used the later 2.0 heat exchangers, which used a header that attached to the exhaust pipe portion via a forward flange. Those units might not be usable on your car. So, if you have your eye on a pair of nice 1.8 liter heat exchangers, and they look like your 1.7 units, go for it!

Jay Gratton

Thanks Pete!

Matt Romanowski

On all of the SS exchangers I've had, the only difference between the 2 liter ones and the 1.7/1.8 ones were the kickup at the back. The 2 liter ones are straight and the 1.7/1.8 ones have the kickup. I think what Pete is talking about is for the stock ones.

Matt Romanowski

Once again Jeff Bowlsby has the info. Check the photos out to see what I was saying

http://bowlsby.net/914/Classic/zTN_E...xchangerID.jpg

Jay Gratton

OK, I post this on good faith that someone won't jump on this. He said they are from a 1.8, but he didn't know the year. He bought a 1.8 engine and tranny for his '76 912E. Here is the link with the pictures.

(Edit: Took link down now that I have my answer.)

Peter Zimmermann

Matt; yes, I was thinking o.e., and that would have been the pattern for the SS exchangers.

Jay Gratton

Great stuff Matty. This answers my question.

Peter Zimmermann

Can you imagine what a dog that car will be with a 1.8 in it?

Matt Romanowski

Woof.

Jay Gratton

Who would ever drive a 1.8?

But I bought them today and they look brand new.

Jay Gratton

Another question, where do people recommend getting the gaskets and bolts. Also, should I be using SS nuts and bolts or regular ones like the ones on it.

Matt Romanowski

Nuts and bolts for the muffler don't matter. For the head studs, you want the copper coated bolts (need 8). I'd probably call Paragon Parts. Jason is a good guy.