Ford CMP muffler

[Stew Robertson]

Hi Hanno
I think there is a difference between 12 and 13 cabs
I have an original ford 12 pipe that the muffler slid over and
the muffler was welded on at each end
I will see if I can find the picture of the pipe

[Hanno Spoelstra]

@ Jacques, certainly helps! I have passed on the dimensions to my friend's local garage, he's sourcing a muffler for me.

@ Stew, I would be interested to see the differences between 12 and 13 Cabs. Could you make some pics?

Thanks,
Hanno

[Jacques Reed]

Hi Hanno,

Glad to help.

As a matter of interest here is the Chinnis Carpenter, I mean Dennis Carpenter passenger car tailpipe bracket in the jury rigged tailpipe bracket I made to get the position right.

The new tailpipe in it is 1-5/8" OD. As you can see it fits well and the next size up, 1-3/4" would be a stretch to get it in, let alone close it.

Having said that Dennis Carpenter so is not necessarily the final say on it. They do not always get it right, especially on their Chinese made stuff. The 5/16" carriage bolts in the brackets they supplied were UNC threads with a 13 mm AF nut! A 1/2" AF spanner would no way fit on it. Also going by the crossover pipe clamp on two original exhaust pipes I have they are both 5/16" UNF not UNC threads on the carriage bolts. Would reasonably assume they would use the same type bolt throughout to keep it simple. Maybe a minor thing but shows lack of research on their part.

Hope this is of interest.

Cheers

[Private_collector]

Just emailed the company in USA that builds custom muffers & exhaust systems.
If what I have read is correct, shipping to Aus is around $55 AUD.
At that price, I am happy to purchase. Muffler cost is $120.

The following, are the specs. I have taken from this thread, and my enquiry about supply is based on those requirements. If you feel any of those specifications are NOT correct, please let me know, and I will ammend my requirements to the manufacturer.

Specifications needed as follows:
Round Muffler with Domed Ends
Length: 18 inches
Width: 6 inches
Inlet pipe ID: 2 inches
Outlet pipe ID: 1-5/8 inches

Inlet pipe location: 6 o'clock (as viewed from inlet end of muffler)
Outlet pipe location: 3 o'clock (as viewed from outlet end of muffler)

I don't know if these would be any cheaper if multiples ordered, but I will ask, if anyone expresses an interest.

[Bob McNeill]

If you are looking for a muffler that's close to that ford size, go to your local tractor parts dealer and check out the SPARAX tractor mufflers, 5" dia, 2" inlet, domed ends, price about $110.

[Private_collector]

Hello Bob,

Obviously you have had the same thought as I did. I once gave consideration to one of those some time ago, but the girth is a little too small to pull off the effect. Also noticed, if I am correct, and have been looking at the right ones, that the intake/output tubes are centrally located to the muffler ends.

It's that time of year, when we get a few crumbs of our tax dollars back, if lucky! In my case, I have been doing 'Salary Sacrifice' for the full 12mths, and several months ago reduced my working week from 5 days down to only 4. These combined should get me a few quid (of my OWN money) back. I have been waiting for this annual event for a long time, because it is the only time I can afford such an expensive item as the custom made muffler. Assuming the reply to my enquiry proves cost is approximately same as their ebay listing of a very similar muffler, then I will give serious thought to ordering one. It should not be any more than approx $180 USD, including the postage.

I know its a lot of money. I just feel the muffler will be too visible to substitute one with different dimensions or tube locations.

[Hanno Spoelstra]

I ended up using a universal muffler made by Bosal (a Dutch company )

Number: 248-016
0031754_248-016-stredny-tlmic-vyfuku-univerzal_300.jpeg
Diameter [mm]: 157
Length [mm]: 520
Inner Diameter 1 [mm]: 48
Inner Diameter 2 [mm]: 48

H.