Series 3 Parabolic suspension hangers

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

JimboS388

Member
Posts
10
Location
Shoreham by sea
My '77 S3 88" has had parabolic suspension fitted by a previous owner. It is normally only lightly loaded but even so the ride is very hard. On inspection the gap at the back between the hangers at the mount is 2 7/16" but 3" across the bushes on the springs. Hence if all done up tight the hangers crush the bushes. I'm assuming that either I'm a spacer missing or I've got the wrong springs on? Can anyone offer some advice? I do have small workshop so can make up a spacer if required. piccie attached. I loosened off the Hanger bolt to show the size of the gap on the left hand end.
rear suspension hanger 2.jpg
 
There is only one width of spring on series 88 [ except early series one rears ] Hard to tell in photo but that spring does look rather wide. Whatever they are the hangers need to be parallel so set them up that way and see if there is an improvement.
 
poly bushes use a metal insert that should get 'crushed' when tightened down. This allows the bush to rotate about it. OEM rubber bushes work slightly differently, although they still crush the inset, but the rubber then stretches and twists.

How many leaves are in the spring pack. For some reason most, as in 99% of all parabolic retailers in the UK only sell HD spring packs, which frankly ride like ****e when unloaded. You want two or three leaves maximum for light loading.
 
poly bushes use a metal insert that should get 'crushed' when tightened down. This allows the bush to rotate about it. OEM rubber bushes work slightly differently, although they still crush the inset, but the rubber then stretches and twists.

How many leaves are in the spring pack. For some reason most, as in 99% of all parabolic retailers in the UK only sell HD spring packs, which frankly ride like ****e when unloaded. You want two or three leaves maximum for light loading.

Thanks for the prompt answer , the rear pack has 3 and the front pack 2 leaves. I already keep a load of heavy stuff in the back to take the edge off the ride but it still doesn't feel right
 
poly bushes use a metal insert that should get 'crushed' when tightened down. This allows the bush to rotate about it. OEM rubber bushes work slightly differently, although they still crush the inset, but the rubber then stretches and twists.

How many leaves are in the spring pack. For some reason most, as in 99% of all parabolic retailers in the UK only sell HD spring packs, which frankly ride like ****e when unloaded. You want two or three leaves maximum for light loading.

I'll try it with some washers and if its better I'll make up spacers, many thanks.
 
You have a mixture of poly bushes and metalastic by the look of it that is not an option.
Spring hanger on the chassis looks to have had a piece cut off in my opinion how does it compare with other side?
 
I think, I hope, this is right (photos).
IMG_20190928_113542.jpg
15696670489902148618806767585742.jpg

15696670489902148618806767585742.jpg


Just noticed that there IS a lean on these, but they are torqued correctly, I'll have to inspect that once once the body has been fitted, and I've done a few lanes.
 
Mine aren't original, but quite close.

That's the project. The daily driver isn't so nice.

A little bit of welding for the Most.
 

Attachments

  • IMG_20190928_123149.jpg
    IMG_20190928_123149.jpg
    146.5 KB · Views: 62
Back
Top