Rear arm removal and refitting

Vanny · Post by **Vanny** » Thu Feb 01, 2007 10:23 pm

Citroen Workshop manual xb 433-2 which deals with the replacement of rear arm bushes and the corect method for reshimming can now be found in the downloads section of the BX Project

And also at the following direct link

http://www.bxproject...SNIP.../XB422-3RearArmBearing.pdf

This follows on from a sub discussion in toms post about TZD Restoration in the 'Chat' area

ellevie · Post by **ellevie** » Fri Feb 02, 2007 8:56 am

Thanks Vanny, the mystery unfolds...

It looks like the tool is actually used to measure the distance between the outer faces of the mounted bushes so that shims can be used to adjust this width to ensure that the metal spacer length is just shorter than the bush face to face distance, and so does not protrude beyond the bush faces. This makes sense now. The specified torque on the 24mm nut of 13 kgf m is converted to thrust and transmitted through the subframe to the thrust bushes to establish the preload on the bearings. If the spacer protruded beyond the outer surface of the bushes, it would but against the subframe and interfere with the transmission of this thrust. Sufficient shims are added to ensure that the spacer is just shorter than the bush face distance by a fraction of a millimeter.

A picture paints a thousand words. Thanks again Vanny.

BX Bandit · Post by **BX Bandit** » Fri Feb 02, 2007 9:50 am

ellevie wrote:Thanks Vanny, the mystery unfolds...

It looks like the tool is actually used to measure the distance between the outer faces of the mounted bushes so that shims can be used to adjust this width to ensure that the metal spacer length is just shorter than the bush face to face distance, and so does not protrude beyond the bush faces. This makes sense now. The specified torque on the 24mm nut of 13 kgf m is converted to thrust and transmitted through the subframe to the thrust bushes to establish the preload on the bearings. If the spacer protruded beyond the outer surface of the bushes, it would but against the subframe and interfere with the transmission of this thrust. Sufficient shims are added to ensure that the spacer is just shorter than the bush face distance by a fraction of a millimeter.

A picture paints a thousand words. Thanks again Vanny.

Qué?

ellevie · Post by **ellevie** » Fri Feb 02, 2007 12:57 pm

BX Bandit wrote: Qué?

Está claro ?

DavidRutherford · Post by **DavidRutherford** » Fri Feb 02, 2007 4:11 pm

An appropriate moment for the reference to pictures and a thousand words methinks.

BX Bandit · Post by **BX Bandit** » Fri Feb 02, 2007 9:51 pm

Well, my spacer has never protruded beyond a thrusting bush so I should be ok.......

ellevie · Post by **ellevie** » Sat Feb 03, 2007 9:29 am

.....

The screw trhust must be about 90,000 lbs for a torque of 13 kgf m and a 2mm thread.

Post by **docchevron** » Sun Feb 04, 2007 1:45 am

If only I had 2mm's to play with.........

Cheers
Chris G

Way2go · Post by **Way2go** » Sun Feb 04, 2007 1:49 am

docchevron1472 wrote:If only I had 2mm's to play with.........

Cheers
Chris G

Dimension or massive mammaries?

Post by **docchevron** » Sun Feb 04, 2007 1:52 am

LOL!!! HEHE, ooh, the possibilities!

I got no torque either, always been a problem....

Cheers
Chris G

BX Bandit · Post by **BX Bandit** » Sun Feb 04, 2007 9:41 am

I got no torque either, always been a problem....

Yeah...but you got Talk dude.......and some

DLM · Post by **DLM** » Sun Feb 04, 2007 11:29 am

I've never been much good at small torque......

Oscar · Post by **Oscar** » Mon Feb 05, 2007 12:48 pm

Some say that the car is a phallic symbol. I don't know what they're talking about.

As far as I'm concerned, my car is red, always starts first time, takes longer to get up than it used to but will stay up all day if need be, not the fastest but has plenty of power when it's needed, and is responsive in the right hands with loads of thrust at critical moments.

What on earth is phallic about that?

Post by **docchevron** » Mon Feb 05, 2007 4:02 pm

jeremy · Post by **jeremy** » Mon Feb 05, 2007 6:10 pm

Never thought of the BX as a phallic symbol - but an E type in the awful heather (pinkish) - well!