Thermal reactors

Nigel · Post by **Nigel** » Sat Jul 07, 2001 2:24 pm

Can these be stripped off somehow leaving the exhaust manifold bare. Or, is there a replacement section available that acts as a normal exhaust part? Over here in the UK there isn't any replacement available and we don't require them for our MOTs so I would prefer to remove them.

hargray2 · Post by **hargray2** » Sun Jul 08, 2001 8:37 am

I will assume you are referring to the heat
exchangers.(The sheet metal encased around the exhaust "header".) If so, they can be stripped, but you won't have any heat. If you
don't ever get cold in the UK, go for it!
You can pull out all the other heater junk while you're at it to lose a few pounds on your car.

Nigel · Post by **Nigel** » Mon Jul 09, 2001 6:12 am

I mean the thermal reactors! A canistor about 12 inches long it insulates the exhaust to aid combustion of waste gases. I want to know if the outer case can be stripped off leaving the exhaust piping. They heat up alot and have been know to crack the cylinder heads.

hargray2 · Post by **hargray2** » Mon Jul 09, 2001 10:28 am

I'm not sure what you are talking about,
catalytic converters maybe? If you don't
need 'em, take them off!

[This message has been edited by hargray2 (edited 07-09-2001).]

Roland Kunz · Post by **Roland Kunz** » Mon Jul 09, 2001 9:46 pm

Hello Nigel

Just to make it sure what 914 do you have. Only the last US versions had a thermo reactor who was sitting at the rear "inside" the mufflersystem. Prevoius cars had a exhaust recirculation witchg runes a pipe from the rear to the air cleaner and those cars also had a Denso air pump driven by the fanbelt.

Now your story sounds like you have a 75-77 Porsche 911 2,7.

12" are 30 cm witch is very close to the size from the heatexcangers from the non catalyc version.

Grüsse

Nigel · Post by **Nigel** » Tue Jul 10, 2001 2:14 am

O.K. its looks like I'm confussing everybody. Right then, its a 1976 912E (I know its not a 914, but they run the same engines don't they?) I might be using the wrong terminology, but I have two canister shaped things that glow orange when the engine is up to temp' on both sides of the engine. These are sited directly under the heads and shroud the exhaust pipes. As far as I can tell they just insulate the exhaust pipe, I have heard that the temperature can crack the heads so I wanted to know if these can either be replaced with some aftermarket product or I can remove the canisters from around the pipe leaving just the bare exhaust?

derubermeister · Post by **derubermeister** » Thu Jul 12, 2001 1:49 am

He's got a point; they are type 4 engines. I would try cross-posting to The Type4um. I would think some muffler guy who's worth his salt could hack 'em off and weld some pipe in instead. Assuming, of course, that there's no vehicle inspection in the U.K. (wink, wink.)

Roland Kunz · Post by **Roland Kunz** » Thu Jul 12, 2001 11:55 pm

Hello

The 912 in fact has the same engine block but the periphericals are differnt. The 914 is a midengine car.

To become cleverer you have to ask on a 912 board: http://www.pelicanparts.com/ultimate/Forum6

Grüsse