mk1-forum.net

A friendly international forum for people interested in the tuning & modification of classic BMC vehicles
It is currently Wed Aug 16, 2017 2:03 pm

All times are UTC [ DST ]




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: Deserting Doctor Moulton
PostPosted: Fri Aug 11, 2017 9:13 pm 
Offline
User avatar

Joined: Thu Jun 24, 2010 7:08 pm
Posts: 2649
Location: London/Surrey
AROnline Blog : Deserting Doctor Moulton
"At AROnline, it’s no secret that we are fans of the late Dr Alex Moulton’s suspension systems, whether it be the Hydrolastic installation on the BMC ADO16 1100/1300 series or the later Hydragas system used on the R6 Rover Metro of the 1990s.
However perhaps the least successful use of Dr Moulton’s suspension systems was on the original Mini. According to all the histories, Hydrolastic suspension was intended for the original ADO15, but because of the tight schedule stipulated by BMC chairman Sir Leonard Lord, a system of rubber cones was substituted instead. It did give the Mini the cachet of having independent suspension at a time when such a thing was a novelty confined to upmarket cars, but it was far from satisfactory.
The rubber cones made by Dunlop gave a bumpy ride over uneven surfaces, but also endowed the Mini with excellent roadholding so beloved of the teenage boy racers that had their first motoring experiences in the BMC baby. Hydrolastic made its debut in the Morris 1100 of August 1962 and it impressed all and sundry. It eventually appeared as standard on the Mini in October 1964 with a £20 price increase. Did it work on the Mini?"
More Here:-
http://www.aronline.co.uk/blogs/blog-de ... r-moulton/


Top
 Profile  
 
PostPosted: Sat Aug 12, 2017 9:18 am 
Offline
Site Admin
User avatar

Joined: Thu Jun 24, 2010 11:30 am
Posts: 9048
Location: Oop North where it's dark & cold nearly all the time.
I have driven a few minis fitted with steel springs & none of them have been anywhere near as good as a Mini fitted with a decent set of rubber doughnuts.

_________________
Mark F
(Forum owner & administrator)


Top
 Profile  
 
PostPosted: Sat Aug 12, 2017 10:02 am 
Offline

Joined: Sat Jul 15, 2017 5:35 pm
Posts: 134
I'd thought of springs when one of my new 7000miles ago hydro units started to slowly leak. Anyone else got any comments - good or bad? The weep is so small, about 3/4" per year so I just pump it up each spring after the winter hibernation. But liquid leaks NEVER improve with age!


Top
 Profile  
 
PostPosted: Sun Aug 13, 2017 11:48 am 
Offline

Joined: Thu Feb 16, 2017 10:26 am
Posts: 48
A low mileage Hydrolastic Mini can be very good, more so with front dampers fitted.

Ultimately, Hydro and rubber cones were a dead end. By the early/mid seventies there were cars with steel suspension that had both superb handling and a very good ride, outclassing rubbish like the Allegro.

The Alfasud, VW Golf and Renault 5 are just three.


Top
 Profile  
 
PostPosted: Mon Aug 14, 2017 9:09 am 
Offline
Site Admin
User avatar

Joined: Thu Jun 24, 2010 11:30 am
Posts: 9048
Location: Oop North where it's dark & cold nearly all the time.
As I understand it the problem with steel springs on a Mini is the space available. Springs can be neither progressive or as compliant as would be ideal.

_________________
Mark F
(Forum owner & administrator)


Top
 Profile  
 
PostPosted: Tue Aug 15, 2017 5:59 pm 
Offline

Joined: Thu Feb 16, 2017 10:26 am
Posts: 48
A Mini doesn't need steel springs though; I've never found the ride on cones to be that bad.


Top
 Profile  
 
PostPosted: Tue Aug 15, 2017 6:50 pm 
Offline

Joined: Sat Jul 15, 2017 5:35 pm
Posts: 134
It's not the actual RIDE on rubber cones that's bad, it's the sheer thought of the cost of converting to them that's bad. Sort of nightmare bad.

With modern spring manufacturing and especially the spring material technology had come on in absolute leaps and bounds since the 90's. I'm sure that there's a much simpler way of using springs and shock absorbers within the space occupied by the hydro or cones. I regularly use an industrial spring maker and while he doesn't know the mini well enough to offer an expert opinion he did say that helper springs would be an absolute doddle - after set-up costs!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: Google [Bot] and 17 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Localized by Maël Soucaze © 2010 phpBB.fr