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Jun 14th, 2026
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Joined: Apr 2008
Posts: 12,257 Likes: 317
Scruffy Oik Member of the Inner Circle
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Scruffy Oik Member of the Inner Circle
Joined: Apr 2008
Posts: 12,257 Likes: 317 |
One trick that I observed Kevin Vernon use to good effect was to go round the flange with a small hammer, making lots of light taps (Quite quickly, say 120bpm, imagine you're conducting Hall of the Mountain King by Grieg) in a radial direction to break the seal betwixt silencer and pipe. Not too hard, you don't want to distort anything. I think it's the vibrations that do the work.
Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
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Joined: Nov 2015
Posts: 8,675 Likes: 491
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,675 Likes: 491 |
Or you could try a metal bar bolted to a U bolt, one each side of the join if there's room to get in
Clever idea 
Jon M
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Joined: Dec 2008
Posts: 22,360 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,360 Likes: 353 |
Or you could try a metal bar bolted to a U bolt, one each side of the join if there's room to get in
Clever idea Only if it works Jon!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Dec 2020
Posts: 106 Likes: 7
L - Learner Plates On
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L - Learner Plates On
Joined: Dec 2020
Posts: 106 Likes: 7 |
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Joined: May 2012
Posts: 1,796 Likes: 5
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,796 Likes: 5 |
Tried that Hamwich, still needed a big hammer to get it off.
The subsequent flaring of the exhaust tube was brought back to size and shape using a piece of scaffold tube as a dolly.
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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OP
Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
I bought the Silverline rubber strap wrenches but they did not grip. With some heat after copious soaking in AC90 & much hammering I got the RH exhaust off. Something fell out, the remains of the catalyst about 70mm long 30 mm one end tapering to 20mm. Looking up the exhaust confirmed no cat. Shaking the silencer I got out the disc I cut out of the baffle which had not come clear bending over when I drilled the baffle. Not tested it but this should now eliminate the rattle on start up & tinkling noise from the silencer.
I had got the engine management warning several times which had cleared after a few mile. The loose cat may have caused this depending on how it was lying in the silencer. I replaced the mounting bobbins with Caterham items.
The LH silencer came off easily & looking up the exhaust stub the cat is still there. I reckon I need remove the LH cat.
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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OP
Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
The LH cat now extracted, it took some effort to get it out. I went for a short run, it feels & sounds no different other than the rattle/tinkle is now gone. Interesting that the cat is magnetic & lots of light grey dust came out in extracting it. The silencer joint overlap is much longer on RH side compared to LH.
Last edited by TimG; 02/07/21 03:43 PM.
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Joined: Mar 2014
Posts: 1,737 Likes: 55
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Mar 2014
Posts: 1,737 Likes: 55 |
The silencer joint overlap is much longer on RH side compared to LH. If you loosen the headers and adjust them at the same time as you are fitting the silencers, you can get the overlaps even on both side. Find a piece of wood, 30mm thick and strap it to the front coil-over to ensure you get sufficient clearance to the headers on each side. It's a bit of a juggling act but very satisfying when everything fits together perfectly!
Andy
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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OP
Talk Morgan Enthusiast
Joined: Nov 2013
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The uneven overlap was how MMC left it after new chassis. It was like that before the new chassis when I took them off for baflectomy. Perhaps the RH header is a bit longer, would MMC do that? Its in place now but I might try adjusting if it had to come off again.
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Joined: May 2012
Posts: 1,796 Likes: 5
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,796 Likes: 5 |
One cylinder is slightly further forward than the other which would account for the excessive overlap on one side.
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