Click here to return to the home page.
Image of a road.
Who's Online Now
15 registered members (Mogdavid, MATTMOG, Burgundymog, Dave Collis, PPD, John07, TeddyLawler, Gordon D, Grumpy2, Mike D, DaveW, smudger1, KennethM, Budster, RichardV6), 61 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 235
John V6 137
OZ 4/4 121
CooperMan 107
RichardV6 104
Newest Members
Stephen Beckett, Modesto, Wheelybin, Bonnie66, RichT56
8325 Registered Users
Newest Topics
Classic car tours in the Lakes
by +8Rich. 01/04/23 01:38 PM
Grease gun?
by JuliaM. 01/04/23 10:54 AM
Monty Gets Further Developments
by Montegue. 01/04/23 08:24 AM
Owners Handbook Surprise
by Ron C. 31/03/23 07:13 PM
Rest shock absorber adjustment
by Topline123. 31/03/23 05:55 PM
rear shocks
by Grumpy2. 31/03/23 04:33 PM
Latest Photos
M3W season '23 started! (@ 7 °C), 12.02.2023
Rat Rod style Threewheeler
Bimble to the New Forest
Brum by the sea
LM62
Forum Statistics
Forums34
Topics44,897
Posts759,877
Members8,325
Most Online1,033
Dec 28th, 2019
Today's Birthdays
Wingman
Previous Thread
Next Thread
Print Thread
Page 1 of 6 1 2 3 4 5 6
Rebound spring gap ?? #768230
31/01/23 12:59 PM
31/01/23 12:59 PM
Joined: Mar 2013
Posts: 15
North Pennines UK
P
Peter H Offline OP
New to Talk Morgan
Peter H  Offline OP
New to Talk Morgan
P

Joined: Mar 2013
Posts: 15
North Pennines UK
I was wondering if someone could offer an explanation for the massive gap between the rebound spring and the hub on my 1970 4/4. As I understand from reading here the spring should contact the hub but be just about 'turnable' when grabbed. I should add that my car has been set up for sprint/hillclimbing and has telescopic (Avo) dampers all round and negative camber plates - could it be a competition modification? What are suggestions for my intention to return it to a fun road car - should I leave well alone? I've barely driven it since I got it but on first impressions it drives well. And, "deep joy" my first image posted.
[Linked Image]

Re: Rebound spring gap ?? [Re: Peter H] #768237
31/01/23 01:16 PM
31/01/23 01:16 PM
Joined: Jul 2019
Posts: 3,296
L
Luddite Offline
Talk Morgan Addict
Luddite  Offline
Talk Morgan Addict
L

Joined: Jul 2019
Posts: 3,296
I guess if for any reason the main springs have been lowered, or may have suffered broken coil(s) it might create the situation in your pic...? Other than that if the shocker is restricting full extension of the spring..? I guess the initial clue might be in the appearance of a lower ride hight relative to the affected wheel(s)..?

Re: Rebound spring gap ?? [Re: Peter H] #768238
31/01/23 01:25 PM
31/01/23 01:25 PM
Joined: Feb 2016
Posts: 5,890
East Harling, Norfolk UK
RichardV6 Online NoMood
Charter Member
RichardV6  Online NoMood
Charter Member

Joined: Feb 2016
Posts: 5,890
East Harling, Norfolk UK
The main springs have weakened or are simply too short Peter, assuming you have pushed the car back and forth a short distance to find an average static position. Dampers will not affect this situation unless they have seized or are too stiff to allow normal suspension articulation. Given your mention of competition use the car will have had a hard life which may have contributed to this situation.

With that amount of play you will have little roll resistance and a large amount of rebound suspension travel over bumps.

Suggest the well proven SSL RS kit which includes full set of dual rate springs, adjustable gas dampers and steering bearings. It allows accurate setting up of the ideal zero static play on rebound spring you mention.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1945 Moto Guzzi Airone
Re: Rebound spring gap ?? [Re: Peter H] #768244
31/01/23 01:50 PM
31/01/23 01:50 PM
Joined: Jul 2007
Posts: 23,646
Suffolk, England
John V6 Offline
Brooklands Register contact
John V6  Offline
Brooklands Register contact
Member of the Inner Circle

Joined: Jul 2007
Posts: 23,646
Suffolk, England
Daft question but does the suspension move fully. Sometimes the bushes can sieze. That gap is certainly larger than anything I have ever seen.
GoMog has something on that here siezed front end


JohnV6
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Re: Rebound spring gap ?? [Re: Peter H] #768259
31/01/23 04:53 PM
31/01/23 04:53 PM
Joined: Apr 2008
Posts: 11,099
Gloucestershire, UK
Hamwich Offline
Scruffy Oik
Hamwich  Offline
Scruffy Oik
Member of the Inner Circle

Joined: Apr 2008
Posts: 11,099
Gloucestershire, UK
Yep, looks like someone's put in short high rate springs to stiffen the rear suspension and lower the ride height. Like Richard says, the roll on turn in will be pretty savage. Definitely agree with installing SSL kit instead.


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
Re: Rebound spring gap ?? [Re: Peter H] #768266
31/01/23 05:39 PM
31/01/23 05:39 PM
Joined: Jun 2015
Posts: 1,361
North Somerset, UK
Deejay Offline
Has a lot to Say!
Deejay  Offline
Has a lot to Say!

Joined: Jun 2015
Posts: 1,361
North Somerset, UK
Looking at the grease witness marks, it appears that the rebound springs are never called upon to perform at all!


Doug

2011 +4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
Re: Rebound spring gap ?? [Re: Peter H] #768270
31/01/23 06:05 PM
31/01/23 06:05 PM
Joined: Nov 2015
Posts: 5,858
People's Republic of South Yor...
CooperMan Offline
Just barreling along
CooperMan  Offline
Just barreling along
Charter Member

Joined: Nov 2015
Posts: 5,858
People's Republic of South Yor...
I would release the front shockers temporarily and bounce the front a few times to see if it settles, helps to narrow down the cause


Jon M
Re: Rebound spring gap ?? [Re: Peter H] #768286
31/01/23 08:42 PM
31/01/23 08:42 PM
Joined: Mar 2013
Posts: 15
North Pennines UK
P
Peter H Offline OP
New to Talk Morgan
Peter H  Offline OP
New to Talk Morgan
P

Joined: Mar 2013
Posts: 15
North Pennines UK
Thank you everyone. I now have a much better idea of what I'm looking at/for. The car is new to me and I have not had a proper opportunity to closely look it over and check things. I will first do the GoMog jacking up check (thank you John V6) and take it from there. I do understand that low speed steering is normally heavy but I have to say it is VERY heavy on this car - so maybe a clue to something seized. The SSL conversion is very appealing but cost may come into the equation. Once again, thank you for all suggestions - I will investigate when the weather in these parts improves a bit and report back on any findings.
Peter H

Re: Rebound spring gap ?? [Re: Peter H] #768288
31/01/23 09:02 PM
31/01/23 09:02 PM
Joined: Feb 2016
Posts: 5,890
East Harling, Norfolk UK
RichardV6 Online NoMood
Charter Member
RichardV6  Online NoMood
Charter Member

Joined: Feb 2016
Posts: 5,890
East Harling, Norfolk UK
Just to be absolutely certain the main springs are too short I would echo Jon (Coopermans) advice on removing dampers but after suspension has been lubricated. I would add grease at the stub axle nipples. The kingpin top bolts may still have the OE engine oil lubrication system but many owners have replaced this with extra grease nipples.

When all lubed do a drop test by jacking wheels a few inches above ground with hydraulic jack and allowing to drop quickly. The car should bounce but note the kingpin geometry causes tyres to squeeze together slightly under compression hence possible need to push the car back and forwards to allow settling and accurate assessment of static ride height.

If rebound spring gap remains similar to your photo it needs sorting. Whilst dampers are off you can check them manually. As a minimum you will probably need new main springs but it's pot luck where that will leave the rebound spring gap if any, which is why the SSL kit although expensive is the attractive option. As it also includes stub axle to spring roller bearings it will almost certainly lighten steering as well.

Look forward to hearing your further findings.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1945 Moto Guzzi Airone
Re: Rebound spring gap ?? [Re: Peter H] #768305
31/01/23 11:16 PM
31/01/23 11:16 PM
Joined: Jul 2007
Posts: 23,646
Suffolk, England
John V6 Offline
Brooklands Register contact
John V6  Offline
Brooklands Register contact
Member of the Inner Circle

Joined: Jul 2007
Posts: 23,646
Suffolk, England
The steering on a 4/4 should be that heavy it has narrow tyres, are the tyres old & are the pressures correct (22 psi). We are all different & I don't use the SSL but others love it.


JohnV6
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Page 1 of 6 1 2 3 4 5 6

Moderated by  TalkMorgan 

Powered by UBB.threads™ PHP Forum Software 7.7.1