Click here to return to the home page.
Morgan 3 Wheeler
Who's Online Now
12 registered members (Kevcaster, Richard Wood, Image, thono, Graham, G4FUJ, Guten, DickJ, Gordon D, brownbaker, KevinMcR, Ricardo, Paulxj), 122 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 294
John V6 246
TBM 166
Hamwich 147
Alistair 145
Newest Topics
Installing new sidelights on front wings?
by norman. 20/09/20 07:48 AM
This sums it all up really
by +8Rich. 19/09/20 11:24 PM
Regardless the price, isn‘t it a nice car?
by Heinz. 19/09/20 09:56 PM
modifications for a slim boat tail
by thono. 19/09/20 08:54 PM
Fuel leak help
by kankeL. 19/09/20 02:03 PM
Quantities
by Phil+8. 19/09/20 01:54 PM
Latest Photos
Rattray and Troup 4/4 80th
A grand day out
Dashboard re-purposing
Paul
Scenic Run from Harrogate
Newest Members
Clodmog, Fogg, Jonesthesteam, Dr. Chris, Fagin
7154 Registered Users
Forum Statistics
Forums34
Topics39,410
Posts650,345
Members7,154
Most Online1,033
Dec 28th, 2019
Today's Birthdays
Fuel.inj
Previous Thread
Next Thread
Print Thread
Page 1 of 4 1 2 3 4
The Guinea Fowl in my boot #654070
03/08/20 05:21 PM
03/08/20 05:21 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
At 3,500 rpm in 4th gear I get a noise that sounds like there’s a guinea fowl calling from my boot. It only happens when I am holding speed on the flat and then lightly press the throttle pedal. Is this the rear sprocket death call?


M3W Brooklands (2015)
Moody 41 (2013)
Re: The Guinea Fowl in my boot [Re: IMHO] #654078
03/08/20 06:08 PM
03/08/20 06:08 PM
Joined: Feb 2018
Posts: 425
SW Iowa, U.S.A.
Bitsobrits Offline
Learner Plates Off!
Bitsobrits  Offline
Learner Plates Off!

Joined: Feb 2018
Posts: 425
SW Iowa, U.S.A.
To make a guinea fowl noise (had to watch a youtube video to find out what that was) the sprocket would have visible wear distortions, so that's easy to check. Perhaps post a picture for group analysis?

Rear wheel bearings or bevel box are other suspects that make noises under light load.


Steve
2012 M3W
Uncracked chassis, still!


Re: The Guinea Fowl in my boot [Re: IMHO] #654088
03/08/20 07:11 PM
03/08/20 07:11 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
Thanks BoB, I’ll post a photo. The sprocket is the Aluminium one, it’s done 2000 miles. Belt tension is
Max 10mm deflection top centre. The noise is definitely from the belt side of the rear wheel but only in the circumstances described.


M3W Brooklands (2015)
Moody 41 (2013)
Re: The Guinea Fowl in my boot [Re: IMHO] #654091
03/08/20 07:25 PM
03/08/20 07:25 PM
Joined: Jun 2012
Posts: 1,434
United Kingdom, Lincolnshire
planenut Offline
Has a lot to Say!
planenut  Offline
Has a lot to Say!

Joined: Jun 2012
Posts: 1,434
United Kingdom, Lincolnshire
I had to google the noise as well but now I know what you mean. If you still have an alloy rear sprocket, it's probably knackered. If you have a steel or Supermax rear sprocket, it may need belt tension adjustment and/or alignment. A check of the Bevel Box oil level and a check for signs of leaks may be a good idea while you are in that area, just to eliminate that. I have found that the belt makes a turbine like noise when accelerating if it is a bit slack.

Just seen your recent post, it will be a worn alloy sprocket. The ones I had were totally worn out at 3-5000 miles. You need a new rear sprocket.






Last edited by planenut; 03/08/20 07:29 PM.
Re: The Guinea Fowl in my boot [Re: IMHO] #654092
03/08/20 07:35 PM
03/08/20 07:35 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
Hi Planenut, the bevel box has no leaks and I replaced the oil a few weeks ago. Here’s the link to a photo of the sprocket https://www.dropbox.com/s/ip1lystf4bm09xv/Photo%2003-08-2020%2C%2020%2025%2035.jpg?dl=0


M3W Brooklands (2015)
Moody 41 (2013)
Re: The Guinea Fowl in my boot [Re: IMHO] #654093
03/08/20 07:50 PM
03/08/20 07:50 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
I’m wondering if this is the problem?

https://www.dropbox.com/s/f8fpnaktdx2ldsr/Photo%2003-08-2020%2C%2020%2046%2021.jpg?dl=0


M3W Brooklands (2015)
Moody 41 (2013)
Re: The Guinea Fowl in my boot [Re: IMHO] #654094
03/08/20 07:52 PM
03/08/20 07:52 PM
Joined: Jun 2012
Posts: 1,434
United Kingdom, Lincolnshire
planenut Offline
Has a lot to Say!
planenut  Offline
Has a lot to Say!

Joined: Jun 2012
Posts: 1,434
United Kingdom, Lincolnshire

I have seen much worse but it's on it's way. The belt will still be serviceable but you should be looking for a new rear sprocket, sooner rather than later. The Supermax is better value and gets good reviews, it's lighter than the MMC steel one. You can always try MMC for a "warranty" replacement, with the low mileage, they may do you a deal? I am told MMC have a customer services person who actually answers emails now!

Re: The Guinea Fowl in my boot [Re: IMHO] #654095
03/08/20 08:05 PM
03/08/20 08:05 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
.........Answers emails! Revolutionary. clap
I have a Fabian sprocket on order so I’m looking forward to fitting that.
Have you looked at the photo of the belt and how close it gets to the small mudguard, I can image that a bit of belt oscillation caused by a light throttle at speed might contact that like a high frequency mouth harp?


M3W Brooklands (2015)
Moody 41 (2013)
Re: The Guinea Fowl in my boot [Re: IMHO] #654096
03/08/20 08:08 PM
03/08/20 08:08 PM
Joined: Feb 2019
Posts: 2,480
Port Orchard, WA.
LightSpeed Offline
Talk Morgan Expert
LightSpeed  Offline
Talk Morgan Expert

Joined: Feb 2019
Posts: 2,480
Port Orchard, WA.
I cut a larger notch in my mudguard.


Stephen
2019 M3W piling on the Covid miles

Re: The Guinea Fowl in my boot [Re: IMHO] #654097
03/08/20 08:10 PM
03/08/20 08:10 PM
Joined: May 2019
Posts: 165
Hampshire, UK
I
IMHO Offline OP
L - Learner Plates On
IMHO  Offline OP
L - Learner Plates On
I

Joined: May 2019
Posts: 165
Hampshire, UK
Mmmmmm. The plot thickens, I feel a Dremel moment coming on.
Cheers Stephen.


M3W Brooklands (2015)
Moody 41 (2013)
Page 1 of 4 1 2 3 4

Moderated by  Aeroman 

Powered by UBB.threads™ PHP Forum Software 7.7.1