Click here to return to the home page.
Morgan 3 Wheeler
Who's Online Now
1 members (mog38583), 227 guests, and 72 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 75
Newest Members
Scot_SJI, Jimmers, Breen60, Davidmog, Stevecarr
9,596 Registered Users
Newest Topics
Are Octopus screwing ev owners
by John V6 - 01/09/26 04:50 PM
4/4 Suspension Install - is this normal?
by ScotiaSteve - 31/08/26 10:52 PM
Delay to bring up oil pressure ( 2006 +4 )
by Cerberas - 31/08/26 03:11 PM
Clarkson Review of Supersport 400
by Stephen888 - 31/08/26 01:09 PM
M3W Treffen Grindelwald 2026 /2
by Laurens - 31/08/26 01:03 PM
M3W Treffen Grindelwald 2026
by Laurens - 31/08/26 01:01 PM
Hood catches rear
by AndyGoff - 31/08/26 11:34 AM
Latest Photos
Wales
Wales
by Joske Vermeule, September 1
tow bar
tow bar
by G Walker, August 24
Prescott double anniversary
Prescott double anniversary
by CooperMan, August 18
Air Crash Sites: Cairngorms
Air Crash Sites: Cairngorms
by RedThree, August 13
Four-seater luggage rack
Four-seater luggage rack
by Soleng, August 9
Forum Statistics
Forums39
Topics49,861
Posts837,540
Members9,596
Most Online1,063
Jun 14th, 2026
Today's Birthdays
Jonny72
Previous Thread
Next Thread
Print Thread
Page 1 of 4 1 2 3 4
#171048 15/12/13 04:17 AM
Joined: Mar 2013
Posts: 414
Likes: 6
Crowbar Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
Joined: Mar 2013
Posts: 414
Likes: 6
So for the past 2 weeks I've taken to driving the M3W with earbuds and music running through the iPhone...as a result, I have found the M3W to be a sublimely enjoyable car.

However, guilt at the *terribly* unsafe use of earbuds while driving, which is against the laws of the Great State of Texas, has led me to ditch the earbuds.

The loss of music and earbuds has resulted in my being subjected to the cacophony of rattles from the compensator, obviously at low speeds in traffic. Low revs and frequent clutching are obviously the time when the noise it as its worst.

Short of shelling out for the "new and improved" compensator, does anyone have an "in-home" solution to mitigating the rattling compensator?

It will cost me ~$800 to ship the car back to the dealer for fettling, so I'd rather try something on my own first...

Input appreciated!

Cheers,

GC



1965 Plus 4
2008 997 Turbo Cab
1981 Alfa Spider
1954 Austin Healey 100 (SOLD)
2013 M3W (SOLD)
Joined: Aug 2013
Posts: 797
M
Talk Morgan Regular
Offline
Talk Morgan Regular
M
Joined: Aug 2013
Posts: 797
GC
I am waiting for the new and improved compensator.
looking at some pics that have been posted, the current unit looks similar to an HD unit. the lobe profile looks quite steep and the springs quite small.
Also looks like the non sliding cam has been welded into place.
It would be theoretically possible to reengineer your current unit with the screamin eagle upgrade. however I reckon that would cost way more than $800
Apparently there's another company called dark horse bringing out improved compensator for Harley's so maybe some other options.
The SE unit appears to have a shallower cam profile more throw and stronger springs which should give a more progressive and damped feel.
I have posted some pics on other threads.
I am looking forward to what the factory upgrade looks like.

Last edited by Matty; 15/12/13 06:41 AM.
Joined: Aug 2013
Posts: 797
M
Talk Morgan Regular
Offline
Talk Morgan Regular
M
Joined: Aug 2013
Posts: 797
https://www.dropbox.com/s/2x1tw5f6yxfd2yu/2013-12-15%2007.41.57.jpg

This is the SE unit. Note larger number of splines and shallow lobe profile

https://www.dropbox.com/s/e2oddafrsc2gmwj/2013-11-24%2006.32.56.jpg

This is a standard HD unit. looks similar to Morgan unit. Note different cam profile.

Joined: Apr 2013
Posts: 1,213
H
HJP Offline
Has a lot to Say!
Offline
Has a lot to Say!
H
Joined: Apr 2013
Posts: 1,213
It seems that some are noisier than others , with mine I've found that by keeping the revs up and not allowing the engine to labour it's fine and very rarelly rattles .


Hugh
Joined: Oct 2008
Posts: 3,439
Likes: 7
Goodwood Drifter
Talk Morgan Addict
Offline
Goodwood Drifter
Talk Morgan Addict
Joined: Oct 2008
Posts: 3,439
Likes: 7
keep it above 2200rpm
imho will make it last longer too


Steven
sold: M3W, Aeromax,V6, 4/4 4seater
now: +fourLM62
Joined: Sep 2012
Posts: 1,959
Likes: 15
Talk Morgan Enthusiast
Offline
Talk Morgan Enthusiast
Joined: Sep 2012
Posts: 1,959
Likes: 15
I've always tried to keep the revs over 2,750 but under 7k smile which seems to work as the compensator is one of the few units that hasn't failed.

Joined: Jan 2013
Posts: 655
Likes: 1
WW11 MOG
Talk Morgan Regular
Offline
WW11 MOG
Talk Morgan Regular
Joined: Jan 2013
Posts: 655
Likes: 1
Have you got the type with the grease nipple, which is accessible via a hole at the bottom of the compensator?

Joined: Mar 2013
Posts: 414
Likes: 6
Crowbar Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
Joined: Mar 2013
Posts: 414
Likes: 6
Warbird...not sure where to check for the grease nipple...tips appreciated.

Would adding grease help the rattle? Seems it might...

Agree with others that keeping the revs up eliminates the rattle, but in slow traffic the car takes on a very "poorly manufactured" character due to the rattle...

Thanks for the pics Matty....keep us informed on the new compensator!

Last edited by Crowbar; 17/12/13 03:04 AM.

1965 Plus 4
2008 997 Turbo Cab
1981 Alfa Spider
1954 Austin Healey 100 (SOLD)
2013 M3W (SOLD)
Joined: Aug 2013
Posts: 213
L - Learner Plates On
Offline
L - Learner Plates On
Joined: Aug 2013
Posts: 213
Does anyone know where the cross over line is on old and new compensator based on chassis number or build date?


2005 Roadster
2013 M3W
MOG South
Joined: May 2012
Posts: 1,796
Likes: 5
D
Talk Morgan Enthusiast
Offline
Talk Morgan Enthusiast
D
Joined: May 2012
Posts: 1,796
Likes: 5
Mine was built in February this year with the old compensator, this was replaced at the first service. It sounded like a biscuit tin with a few loose bolts in.

Page 1 of 4 1 2 3 4

Moderated by  TalkMorgan 

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5