Exhaust System
 

Hey All

Does anyone have any photos of the exhaust and muffler for a C15A or measurments? I have a 216 in my C15 and it had nothing for an exhaust just the exhaust manifold. I was lucky enough to find a guy at a muffler shop that wants to build one for me for free we just need to know the path it would or should be followed.

Thanks
Gary

Lube chart
 

Lube chart is the best I could find.....

It gives you a very good idea of how it was routed. If you can get done free by a local shop you are saving yourself at least $100......muffler is standard cheap round muffler...generic...from Canadian tire just match the inlet size.......

Bob

Thanks
 

Hey Bob

Thank you very much for the quick response, that image looks perfect. I know I will be able to give it to the muffler guy and have it build it.

Thanks
Gary :note: :thup:

First section exhaust header to muffler
 

Hi All

Please somebody correct me if I am wrong, I believe that first section of pipe exhaust header to muffler is identical to the standard Chev truck using the 216 engine. Difference between standard trucks seems to be in the horizontal length. I've got several HUP, C60L, C60S that have come off my trucks which I've used as patterns to have new ones made. Along with some standard Chevy that I have picked up. I'll see if I can make a tracing of them to day. If possible to make a tracing will report back.

Cheers Phil

First section exhaust header to muffler pictures
 

Hi Gary

Below is a picture of three different pipes from my HUPs showing the section exhaust header to muffler picture. The pipes are basically only bent in to planes nearly vertical and horizontal. I have made tracings of the pipe if they would be of use.

http://canadianmilitarypattern.com/R...otos%20023.jpg

Cheers Phil

Thanks
 

Hey Phil

Thanks for the picture, I think that between the picture you posted and then one from Bob the muffler guy should be able to fab up something for me.

Thanks for the post.
Gary :thup:

Again I can't recomend to much fenton exhaust manifolds. Eliminates the leaky gasket after a couple hours and wakes the motor up a lot. You don't need duel exhaust just a "Y" pipe between the manifold and muffler.

Agree with Harry about the Fenton but
 

Hi All

I agree with Harry about the Fenton manifold, it really is the fix for exhaust manifold problems. Having said that I'm reassembling my HUP with the original style manifold just because the HUP is otherwise original. I think I can get away with it because the HUP doesn't have to work the engine as hard as the bigger trucks.

On my C60S I ran the stock manifold for years having to replace the manifold gaskets about once a year because they would develop leaks and twice I replaced the manifolds with better condition ie flat and not eroded ones. Reason for failure I'm pretty sure was the newer gas with just runs hotter and the big trucks tend to have to throttle positions on the floor and all the way up.

The Fenton two piece manifold was the solution I put it on and that was the last time I had to touch it for nearly 10 years. When I swap up to the 261 engine I used the same Fenton manifolds so far no exhaust leak.

I would add a comment from a CCKW expert he suspects that the manifold gasket problem is three fold: one the new gaskets are not made of asbestos, two the new gas just burns hotter, three the replacement mufflers cause to much back pressure. His fix new muffler punch extra holes inside the muffler, little more noise but less back pressure.

Just to add to the info here is another view of the pipe.

http://canadianmilitarypattern.com/R...otos%20024.jpg

Cheers Phil

Exhaust
 

Hey Harry

I will definitly look into the fenton manifolds, thanks for that. Phil, thanks for those pictures they will help a lot, I am going to respond to your PM with the info you need, Thanks.

Gary

Here is the Fenton with Y pipe
 

If anybody is curious here is the Fenton two piece manifold with the Y pipe I fabricated. This was originally made for the 216 engine but is shown here on the 261 during finial testing before the 261 went into the Pattern 13 C60S.

Cheers Phil