View unanswered posts | View active topics It is currently April 16th, 2024, 11:05 pm



Reply to topic  [ 1048 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7 ... 105  Next
 Make Your Own ....2CV.... 4x4 
Author Message
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Some pics.
Assemble suspension, still some fixing of spring cans and adjustments to do.
On the wish list are AK springs as I believe they are a lower lbs/inch softer?
Anybody know the spring rate?
Rear End.
Attachment:
DSC03709.jpg
DSC03709.jpg [ 936.21 KiB | Viewed 11113 times ]

Front End.
Attachment:
DSC03710.jpg
DSC03710.jpg [ 968.24 KiB | Viewed 11113 times ]


November 9th, 2011, 1:59 pm
Profile
Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
Posts: 3675
Post Re: Make Your Own ....2CV.... 4x4
pete,
haven't worked out the lbs/inch, but there's some info from Citroen in these tables.

Image
Springs 1 by slcchassis, on Flickr

Image
Springs 2 by slcchassis, on Flickr

Might be worth having a bit of a play around with calculating the rates of the springs
you've got, using this site.
http://engineersedge.com/spring_comp_calc_k.htm

Worth noting that with Citroen, you've got to expect the unexpected, since this was
what I found when I cut open a selection of the larger cans a while back.
I have a feeling that there's an Ami Super spring or two amongst that lot... :roll:

Image
Springs to mix and match. by slcchassis, on Flickr

ken.


subarupete wrote:
On the wish list are AK springs as I believe they are a lower lbs/inch softer?
Anybody know the spring rate?

_________________
Image


November 9th, 2011, 10:24 pm
Profile
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Ken thanks,
Know the rates and dimensions for a 2CV front spring by substitution should be able to determine the rate for an AK spring using http://engineersedge.com/spring_comp_calc_k.htm and use the 2CV data as a check.


November 9th, 2011, 11:15 pm
Profile
Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
Posts: 3675
Post Re: Make Your Own ....2CV.... 4x4
Peter,
it might be best to use the calculator on that particular site as a basis for comparison, rather than to determine absolute values, since the values it spits out for 'standard' 2CV springs don't match too well with the testing I had done elsewhere.

Don't know what values you have for standard springs, but I've worked on around 800 lb/in for the fronts, with the (shorter) rears being closer to 900 lb/in.

This calculator on this site seems to be more accurate, but you only get so many freebies before they stop the fun and ask for some $$$... ;)
http://www.planetspring.com/pages/compr ... ompression

ken.


subarupete wrote:
Ken thanks,
Know the rates and dimensions for a 2CV front spring by substitution should be able to determine the rate for an AK spring using http://engineersedge.com/spring_comp_calc_k.htm and use the 2CV data as a check.

_________________
Image


November 9th, 2011, 11:38 pm
Profile
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Drive Shaft Adapters.

Drilled and Tapped Gearbox Drive Flange.
Attachment:
DSC03760.jpg
DSC03760.jpg [ 125.72 KiB | Viewed 11012 times ]


Test Fitted Adapters.
Attachment:
DSC03762.jpg
DSC03762.jpg [ 109.44 KiB | Viewed 11012 times ]


November 18th, 2011, 5:34 pm
Profile
Firing on two.
User avatar

Joined: January 5th, 2009, 5:48 am
Posts: 1687
Location: Haven't a clue
Post Re: Make Your Own ....2CV.... 4x4
8-) What did you tap them to, 10mm I'm guessing, 1.5 or 1.25 pitch? Much easier than finding 9mm bolts.
I should do this myself, currently got the original bolts with spacers under the heads.

_________________
Image


November 18th, 2011, 11:53 pm
Profile
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Hi Joolz,
Tap 10mm x 1.5. and use 10mm socket bolt, heads need to be reduced to fit, (drill/ flap disc as i dont have a lathe).
The 9mm socket bolts are hard to get. Have tried to source these, but min quantity would be 200+
Was going to use 10mm for the drive shaft as well but not enough metal.
The adapters came from Holland, getting them copied locally for the rear-end.


November 19th, 2011, 11:00 am
Profile
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Hi Guys,
Your advice is sought, have attempted to fabricate some steering arms.
See pics.
Problem – have drilled thru the arm at the pivot point to < 12mm.
The 12mm bolt is a “tight fit” in the arm.
Can torque the nut/bolt tight, to put a crush load on the rod-end and spacers.
Will the bolt move and eventually “wear out” the steering arm????
Spend so far on one arm is £16.00, so shall I bin it?
Attachment:
DSC03972.jpg
DSC03972.jpg [ 71.21 KiB | Viewed 10918 times ]

Attachment:
DSC03974.jpg
DSC03974.jpg [ 72.3 KiB | Viewed 10918 times ]


December 23rd, 2011, 1:38 pm
Profile
Agony Aunt - You have a car problem? Speak to Ken

Joined: March 6th, 2009, 1:40 am
Posts: 3675
Post Re: Make Your Own ....2CV.... 4x4
Pete,
it's surprising how difficult it can be to separate parts which have been bonded with high strength threadlocking/bearing fit compounds.

If the shank of the bolt isn't fully threaded, might be worth a shot with one of them, as they're capable of filling bondline gaps of up to 0.25mm, although the cure rate is slower then...

Trial pack;
http://www.ebay.co.uk/itm/ABRO-HIGH-STR ... 1301wt_698

or giant economy size;
http://www.ebay.co.uk/itm/Loctite-290-H ... 2548wt_932

ken

_________________
Image


December 23rd, 2011, 3:43 pm
Profile
Firing on two.
User avatar

Joined: March 5th, 2009, 6:23 pm
Posts: 2142
Location: Near Monmouth
Post Re: Make Your Own ....2CV.... 4x4
Ken,
Thanks for that.
Can put the bolt in from the bottom with the permanent bonding stuff.


December 23rd, 2011, 3:57 pm
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 1048 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7 ... 105  Next

Who is online

Users browsing this forum: No registered users 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:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.