Click here to return to the home page.
Morgan 3 Wheeler
Who's Online Now
1 members (BertR), 288 guests, and 39 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
John V6 84
+8Rich 68
DaveW 67
Luddite 58
Newest Members
Ulfulf, Wilfried, Classic-Line, BrunswickGreen44, Franco Morgan
9,203 Registered Users
Newest Topics
Goggle eyed
by Roady - 19/07/25 06:16 PM
FOR SALE AERO8 series 1 WHEELS
by t50 - 19/07/25 12:07 PM
Lions Tour
by OZ 4/4 - 19/07/25 11:55 AM
Morgan rebuild on Facebook
by TBM - 19/07/25 10:50 AM
Ride Comfort & Tyre Age – Plus 4 Duratec
by Nick B - 19/07/25 10:22 AM
Super3 Accessory Rails for Side Blades
by BillHart - 18/07/25 11:59 PM
Glitch
by BobtheTrain - 18/07/25 05:47 PM
Latest Photos
More Pictures of the MHR Visit
More Pictures of the MHR Visit
by DaveK, July 19
Visit to the Factory- Historic Morgan Group
brake reaction stay fitting
brake reaction stay fitting
by Caveman, July 15
BHM Breakfastclub 5/7/2025
BHM Breakfastclub 5/7/2025
by DirkM, July 13
Parrot upgrade
Parrot upgrade
by Mr Mogoo, June 19
Forum Statistics
Forums34
Topics48,331
Posts812,867
Members9,203
Most Online1,046
Aug 24th, 2023
Today's Birthdays
kamo30
Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Joined: Jun 2016
Posts: 430
Learner Plates Off!
OP Offline
Learner Plates Off!
Joined: Jun 2016
Posts: 430
RichJames & Cat302 I think you're answering a different question.

Lightspeed was asking about the spirals machined into the underside of the covers - not the tool marks. I suspect those grooves are to enhance the heat transfer properties by giving more surface area for the hot oil to splash against. Simple as that I believe. Although the designer may also have been trying to make the roof of the cover thinner while leaving the spiral ribs there for strength.

That said, I seriously doubt there's much cooling to be had with them vs. the stock covers.

Last edited by truckin-on; 10/02/22 10:16 PM.
Joined: Mar 2014
Posts: 1,673
Likes: 25
Talk Morgan Enthusiast
Offline
Talk Morgan Enthusiast
Joined: Mar 2014
Posts: 1,673
Likes: 25
Not grooves - just a trick of the light I reckon.


Andy
Joined: Jun 2016
Posts: 430
Learner Plates Off!
OP Offline
Learner Plates Off!
Joined: Jun 2016
Posts: 430
Finally finished! FYI - Andy (and others) was correct - the swirl marks are just a trick of the reflection. The underside of the covers are indeed smooth - the CNC tracks reflect the light looking like grooves in the pictures!

It took me 3 months to get them polished - that was done in May - and 3 months additional to source a pair of gaskets. I was reluctant to remove the stock covers without being sure I could replace the gaskets if I needed to. In any event, my dealer finally came through with a pair, which thankfully I didn't need to use!

I outsourced the polishing, as it looked to be more than me and a bunch of Cratex wheels could do. The polishing company, which did a great job, had way more hours into them than what they expected, but the end result is they look like they belong on the engine. Black between the fins would have been way easier, but would not have looked right on a polished engine.

Installing them wasn't as simple as I hoped, as I needed new (shorter) cap screws, and smaller diameter washers, tricky to source, to fit the recesses in the new CNC covers. I sourced some stainless cap screws, then polished them to look like chrome. All in all, I really like the new look! The stock covers are surprisingly heavy, the new aluminum ones lighter by a fair bit.

Here are pics of the covers and the finished engine, click on the picture for a larger view..

[Linked Image]
[Linked Image]


Joined: Nov 2017
Posts: 100
L - Learner Plates On
Offline
L - Learner Plates On
Joined: Nov 2017
Posts: 100
Looks great! thumbs


Scott

2018 M3W
1995 Porsche 993
Joined: Aug 2012
Posts: 2,356
Likes: 2
Talk Morgan Expert
Offline
Talk Morgan Expert
Joined: Aug 2012
Posts: 2,356
Likes: 2
Very Nice

Joined: Jan 2014
Posts: 1,670
M
Talk Morgan Enthusiast
Offline
Talk Morgan Enthusiast
M
Joined: Jan 2014
Posts: 1,670
They look superb

Joined: Nov 2015
Posts: 7,891
Likes: 241
Just barreling along
Talk Morgan Guru
Offline
Just barreling along
Talk Morgan Guru
Joined: Nov 2015
Posts: 7,891
Likes: 241
Very shiny, the range of mods some of you chaps with 5 speeders undertake is amazing thumbs


Jon M
Page 2 of 2 1 2

Moderated by  TalkMorgan 

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