leaning rear activa

davoxx · Unread post by **davoxx** » 15 May 2011, 17:56

the rear of my activa is leaning, with the passager side lower that the drivers.

both sides rise, but to mee it looks like the driver side is higher than normal.
(i'm just guessing, it might be that the other side is lower than normal, but it looks like the driver side is too high at normal and lowest settings)

any one have any pics on what i need to adjust?

also if it got a bad smack, would this casue it?

Xaccers · Unread post by **Xaccers** » 15 May 2011, 18:20

When were the control arms and bushes last replaced?
They wear and give inacurate adjustment to the roll corrector.

Are the roll corrector linkages lubed and free to move?
They can dry out and sieze.

What state is your rear ram bush? Get under and check it.

Unread post by **Dommo** » 15 May 2011, 19:38

My Activa did this, never found the cause!

Unread post by **CitroJim** » 15 May 2011, 19:51

They all do it, to a small extent...

It's the fact that the roll correction is taken from the front wishbones and this serves for the rear too; there is no 'trim' available to adjust any residual lean from the rear and hence the effect. Tolerances and wear will worsen it and as said by Xac, wear in the ram bush can be the cause.

Is she properly level at the front and how does she look front and rear with the engine running and at correct height. Often the lean corrects more or less when running but appears soon after switchoff and after the suspension has sunk a little - which is also normal on an Activa, the emphasis being on just a little.

davoxx · Unread post by **davoxx** » 15 May 2011, 20:37

CitroJim wrote:They all do it, to a small extent...

It's the fact that the roll correction is taken from the front wishbones and this serves for the rear too; there is no 'trim' available to adjust any residual lean from the rear and hence the effect. Tolerances and wear will worsen it and as said by Xac, wear in the ram bush can be the cause.

Is she properly level at the front and how does she look front and rear with the engine running and at correct height. Often the lean corrects more or less when running but appears soon after switchoff and after the suspension has sunk a little - which is also normal on an Activa, the emphasis being on just a little.

on flat level ground at normal height with engine running for a while it is clearly leaning at the rear, as though that wheel has not fully lifted.
the front is perfectly level.

the ram bushing seems okay, with no rattle.

everything looks free to move and smooth, so i think something may be bent?

maybe the ram is not in the correct position?

andmcit · Unread post by **andmcit** » 15 May 2011, 20:42

Is this the ex-KP's green duff HG one - TBH I'm losing track - weren't you
shopping for an Activa 5 minutes ago? OR. Does this mean the one you
were chasing up has worked out then?

Deanxm · Unread post by **Deanxm** » 15 May 2011, 20:46

Davoxx

you need the car on flat level ground, then measure from the floor to the top of the wheelarches to see whats going on.
The back cant be sat to cock and the front level unless the chassis is twisting.

Measuring usualy gives a better picture of whats going on and you will find the front is out too but not by much, probably just wants leveling out, most do i think.

D

davoxx · Unread post by **davoxx** » 15 May 2011, 21:02

Deanxm wrote:Davoxx

you need the car on flat level ground, then measure from the floor to the top of the wheelarches to see whats going on.
The back cant be sat to cock and the front level unless the chassis is twisting.

Measuring usualy gives a better picture of whats going on and you will find the front is out too but not by much, probably just wants leveling out, most do i think.

D

okay .. so the front is slightly off, i meant it looks perfectly leave

(it is probably about 1/4 of an inch off at most)

should i be trying to get the front perfectly level to fix the back which is out by four inches?

i'll get it out on level ground and measure the heights so.

Deanxm · Unread post by **Deanxm** » 15 May 2011, 21:09

4"!!!! that one hell of a lean, is the rear cylinder on that side returning much fluid (or holding any as the case may be?).
It seams with mine the lean was accentuated at the rear so 1/2" at the front was about 1" at the back.
Wasnt too bad to do at all really but ive still got the shuffles to sort out.

D

davoxx · Unread post by **davoxx** » 15 May 2011, 21:19

andmcit wrote:Is this the ex-KP's green duff HG one - TBH I'm losing track - weren't you
shopping for an Activa 5 minutes ago? OR. Does this mean the one you
were chasing up has worked out then?

this is KP's old green one ... (the one for the hdi conversion)

i'm always shopping for an activa

I know i have a problem.

(especially if it is going to be scrapped ... that is why i bought kp's one in the first place, i missed that red on that was broken slowly on ebay

)

andmcit · Unread post by **andmcit** » 15 May 2011, 21:26

Ah, I did wonder it's fate as this is the only recent mention of it.
Activae are rather addictive to buy actually. Still think you should
shove a new HG on this first and get it running properly...

buying in and converting a HDi to fit is going to cost s**t more
than doing this ans just shoving the stuff from the green nozzle in.

davoxx · Unread post by **davoxx** » 15 May 2011, 21:26

Deanxm wrote:4"!!!! that one hell of a lean, is the rear cylinder on that side returning much fluid (or holding any as the case may be?).
It seams with mine the lean was accentuated at the rear so 1/2" at the front was about 1" at the back.
Wasnt too bad to do at all really but ive still got the shuffles to sort out.

D

dunno how to check tbh ... it rises and sinks okay (to my novice eyes)

when it goes all the way down, seems like the other side does not sink enough ... so maybe the issue is the other side is too high?

davoxx · Unread post by **davoxx** » 15 May 2011, 21:33

andmcit wrote:Ah, I did wonder it's fate as this is the only recent mention of it.
Activae are rather addictive to buy actually. Still think you should
shove a new HG on this first and get it running properly...

buying in and converting a HDi to fit is going to cost s**t more
than doing this ans just shoving the stuff from the green nozzle in.

i thought you knew that i had it

fate stole my red activa (costing me over a grand) - made me miss that grey activa (you know the one i'm on about

) -- i just want a bit of slack!!!

i've already gotten an hdi for my transplant project - so aslong as i get the car not leaning - happy days

i have a list of Citroens i want:

xantias: hdi activa with cruise control, stock activa and if i have enough cash a "performance" activa

xms: tct prestige

cxs: cx prestige/limousine

and when i win the lotto - an sm

davoxx · Unread post by **davoxx** » 15 May 2011, 21:57

just to show how crazy i am i even considered this car - http://www.autoscout24.de/Details.aspx?id=ltmjwy2xoqxc

and i don't speak german

but back to topic:

i'll have a measure on flat ground tomorrow or so.
i jacked it up and checked for obvious damage leakage - but could not see anything.
car goes down, car goes up. when poking the anti roll linkage it seems to me that the car did not tilt as much as in the back either direction.

Citroenmad · Unread post by **Citroenmad** » 18 May 2011, 09:22

davoxx wrote:xms: tct prestige

Ah, I know of one of these which needs a home soon, fancy another project?