Exhaust silencer

[martin hunt]

Does anyone know if the exhaust system fitted to the Morris minor is 1&1/4" or32 mm bore ?
Think I could get enough usable parts from this system if right diameter
Seen complete systems on interweb for around£80
But can't get any info as to tube dimensions
Cheers Martin

[martin hunt]

Originally Posted by martin hunt

Does anyone know if the exhaust system fitted to the Morris minor is 1&1/4" or32 mm bore ?
Think I could get enough usable parts from this system if right diameter
Seen complete systems on interweb for around£80
But can't get any info as to tube dimensions
Cheers Martin

Just had email back from suppliers of the Morris minor exhaust system and their pipe is 35 mm bore
I've room in the manifold mounting flange to machine a suitable hole for this to fit into
There is enough pipe work to be able to make up,a functioningsystem ,with a little bit of modifying
Will the slightly larger pipe work cause any problems?
Looking at the manifold flange more closely it appears that the 32 mm pipe now in situ has been flared out before being welded in place
So perhaps 35 mm was the original size fitted ?
Cheers Martin

[David Powell]

I seem to recall that I simply used what I could afford which was approximately the same size as whatever was on them, I never had any problems from doing that.
Incidentally, if you have an SU carburetor and it does not have the damper for the piston you can bore the piston ,make a damper to fit and get a bit more acceleration..
If the MPG does not matter to you you can also polish the needle which fits into the jet to get a few more horses, even a couple of thous off makes a difference,
I hope these vague hints and recollections help.
Regards David Powell.

[weidner]

Originally Posted by martin hunt

Just had email back from suppliers of the Morris minor exhaust system and their pipe is 35 mm bore
I've room in the manifold mounting flange to machine a suitable hole for this to fit into
There is enough pipe work to be able to make up,a functioningsystem ,with a little bit of modifying
Will the slightly larger pipe work cause any problems?
Looking at the manifold flange more closely it appears that the 32 mm pipe now in situ has been flared out before being welded in place
So perhaps 35 mm was the original size fitted ?
Cheers Martin

The standard Morris 1000 exhaust system used to have a nice crisp fart on the overrun .

You have been warned !

[8_10 Brass Cleaner]

https://www.theaustinsevenworkshop.c...?query=exhaust

[martin hunt]

Originally Posted by 8_10 Brass Cleaner

https://www.theaustinsevenworkshop.c...?query=exhaust

Thanks for very useful link
The long wheel base unit looks like what I'm after
Have sent them a message
See what they come up with regards dimension etc
Many thanks
Cheers Martin

[Mr B]

Originally Posted by 8_10 Brass Cleaner

https://www.theaustinsevenworkshop.c...?query=exhaust

One of the best suppliers I've had the pleasure of dealing with. Always happy to help and very knowledgeable.

[8_10 Brass Cleaner]

Originally Posted by Mr B

One of the best suppliers I've had the pleasure of dealing with. Always happy to help and very knowledgeable.

Jamie is great as was Dave it its previous incarnation, especially if old man Dunford was there when you rang up. If they didnt know, you had no chance.

[martin hunt]

Originally Posted by 8_10 Brass Cleaner

Jamie is great as was Dave it its previous incarnation, especially if old man Dunford was there when you rang up. If they didnt know, you had no chance.

Is he back ?
Been trying for two days to make contact ,by email and phone
No response to either ?
Cheers Martin