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View Full Version : Puma Bump Stop Clearances



chook73
1st February 2013, 07:35 PM
I have done a fair bit of searching and I cannot find anywhere the bump stop clearances of a brand new stock Puma with no accessories fitted. I have found a lot of posts that put the front somewhere between 65mm and 85mm and the rear somewhere around the 100mm to 120mm but i havent been able to find anything convincing.

Does anyone have them please?

newhue
1st February 2013, 07:40 PM
I asked my dealer to report for me. They used a 130 with an alloy tray fitted. They quoted 100F and 150R. When I had a look for myself I felt the front was 85 to 90.
I just so happen to be working at a clients house at the time who had just bought a 110. Again I'd say 85 to 90, and the rear was 125.

chook73
1st February 2013, 07:51 PM
Thanks Jason.

LowRanger
1st February 2013, 08:16 PM
Iain
Be careful when looking for bump stop clearances,as it depends where the measurements are taken from,as the distance from the rear of the bump stop to the rear of the bump stop plate on the diff will be different to the front of the bump stop to the front of the bump stop plate,due to the rotation of the diff.This is why is is difficult when lifted suspension has been fitted because the diff rotates even more.I suggest you ask for measurements from the centre of the bumpstop plate on the diff to the centre of the bumpstop.

chook73
1st February 2013, 08:36 PM
Iain
Be careful when looking for bump stop clearances,as it depends where the measurements are taken from,as the distance from the rear of the bump stop to the rear of the bump stop plate on the diff will be different to the front of the bump stop to the front of the bump stop plate,due to the rotation of the diff.This is why is is difficult when lifted suspension has been fitted because the diff rotates even more.I suggest you ask for measurements from the centre of the bumpstop plate on the diff to the centre of the bumpstop.

Thanks Wayne I had read this in another post, frankly with the variances in measurements I have been given it wouldn't matter where I measure from as there is over 25mm variance.

I have the stock spring measurements (from Gwynn Lewis) I was just hoping to have a comparative measurement to stock as a backup.

LowRanger
1st February 2013, 08:54 PM
Thanks Wayne I had read this in another post, frankly with the variances in measurements I have been given it wouldn't matter where I measure from as there is over 25mm variance.

I have the stock spring measurements (from Gwynn Lewis) I was just hoping to have a comparative measurement to stock as a backup.

Take a trip down to the local Dealer and measure for yourself.Tell them you are just checking out the underneath before you will consider buying :D

chook73
1st February 2013, 09:00 PM
Take a trip down to the local Dealer and measure for yourself.Tell them you are just checking out the underneath before you will consider buying :D

Funny I was just thinking that.......

Ask them if I can trade my truck in and see what they say!

cal415
1st February 2013, 10:34 PM
I asked the some question a few months back, had a couple of replies -
http://www.aulro.com/afvb/90-110-130-defender-county/157264-puma-suspension-height.html

Bush65
2nd February 2013, 08:12 AM
IMHO it is not practical to accurately measure bump stop clearance.

Not only the for the reason lowranger gave but the suspension changes which occur on surfaces that are not dead flat and level (spring rates also influence these particular changes).

Then there is the difficulty of obtaining an accurate measurement.

If six people measured the same vehicle you would probably get six different measurement. If the same six did this 3 times each, but on 3 different days, you would might expect close to 18 different measurements.

chook73
2nd February 2013, 04:45 PM
IMHO it is not practical to accurately measure bump stop clearance.

Not only the for the reason lowranger gave but the suspension changes which occur on surfaces that are not dead flat and level (spring rates also influence these particular changes).

Then there is the difficulty of obtaining an accurate measurement.

If six people measured the same vehicle you would probably get six different measurement. If the same six did this 3 times each, but on 3 different days, you would might expect close to 18 different measurements.

Thanks John, I am just looking at a comparative measurement as so much has changed on the vehicle it is hard to get an accurate measurement and be able to compare it to stock. I also got the measurements between the spring seats and I just wanted to make sure we were in the ballpark which is seems we are.

I agree with both of you which is why I didnt have any measurements at the bumpstops previously.

Bush65
3rd February 2013, 09:05 AM
IMHO it would be better to compare the static height of the springs as some measurement issues are reduced. The angle of the lower seat still changes as height changes so it is necessary to compare measurements taken at the same location.