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Miguel A. Garcia
Frequent User
Username: magarcia

Post Number: 83
Registered: 3-2005
Posted on Thursday, 22 September, 2005 - 20:49:   Edit PostDelete PostView Post/Check IP

Hello again.
I have readed all about self levelling in the forum but i have some doubhts, so please, sorry me for my "begginer" questions about it.
SRH3430 has its right side (front and rear)lower that right. it is so with motor running and also with it stopped. If i swich one speed in the transmission, the difference is just smaller, but it still remains.
I drained the full hydraulic system and refilled with fresh RR363, but it still remains unlevelled.
My question is about disconecting self levelling system. Is possible to do it, and to make both sides in the same level just with new springs? If so, will it be safe?
I have readed about disconecting the fron levelling, but i do not know about rear.
Does anyone in the forum any graphic document or guided instruction to do it?
Please, sorry agin for this so simple question.
regards,
Miguel
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Patrick Lockyer.
Grand Master
Username: pat_lockyer

Post Number: 457
Registered: 9-2004
Posted on Sunday, 02 October, 2005 - 21:53:   Edit PostDelete PostView Post/Check IP

Miguel.
Is it low just on the rear or the front as well.
Take a reading on all the centre of the wheels to the under side of the wheel arch.
Do this after a run with the car unladen and on level ground.
Let me know the figures.
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Miguel A. Garcia
Frequent User
Username: magarcia

Post Number: 87
Registered: 3-2005
Posted on Tuesday, 15 November, 2005 - 19:51:   Edit PostDelete PostView Post/Check IP

Pat, Sorry for the dely in replying: i was out of home for some time...
About the level, it is lower on both rear and front on the right side. From last days, it became more evident.
I will measure as you suggest tonite and will post the results.
Thank you!
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Miguel A. Garcia
Frequent User
Username: magarcia

Post Number: 100
Registered: 3-2005
Posted on Monday, 13 February, 2006 - 02:26:   Edit PostDelete PostView Post/Check IP

Hello pat, sorry for the delay in replying you but so many time without conecting internet. Sorry.

I measured the high from floor to the wheel arch and here are the results:
Front wheels:

Left front wheel (saw from the drivers view) and measured from the floor to the arch of the wheel: 72 cm.

Right front wheel: 66,5 cm
This are 5,5 cm of difference in unlevel.

Rear wheels:
left rear wheel: 67 Cm
right rear whell: 64 cm
This are 3 cm of difference

I post pics too.

I have measured all after driven 60 Km with the car, with just myself on it, and measured it on the leveled garage, with engine stoped and the car empty.

Any suggestion about how to make it to be leveled? really if selflevelling would be disconected or done unworking would be dangerous to drive in this conditions? i have seen some RR Shadows fro Holland that are disconected the selflevelling and they are sold in this conditions (brabno cars do so, for example in some of their cars on sale...)
Bleeding the system would cure this problem?
My car is a very early shadow, so it has the selflevelling inn the fron wheels too!
Would be possible to work on this by a DIY amateur?
Thank you again!
This is the right front wheel:

This is the left front wheel:

a front view of SRH3430 where is evident the unlevel:

a close view of a level on the top of the grill:
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Patrick Lockyer.
Grand Master
Username: pat_lockyer

Post Number: 524
Registered: 9-2004
Posted on Tuesday, 14 February, 2006 - 04:50:   Edit PostDelete PostView Post/Check IP

If the variation of height differs that amount after a run with the selfleveling working n/s and o/s i would set the trim height level first.
However if the car settles after a few days to an uneven plane then find the route cause ie suspension bushes sub frame mounts road springs to name a few.
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 101
Registered: 3-2005
Posted on Tuesday, 14 February, 2006 - 06:55:   Edit PostDelete PostView Post/Check IP

Thank you Pat,
sorry but i am not fammiliar with abrebiations in this terms: "...n/s and o/s..."
Any easy procedure for to set the trim height level?
I am searching the CD in the Hidraulic chapter but i do not see this procedure. Sorry for my ignorance.:-(

Thank you and regards.
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Patrick Lockyer.
Grand Master
Username: pat_lockyer

Post Number: 526
Registered: 9-2004
Posted on Tuesday, 14 February, 2006 - 18:17:   Edit PostDelete PostView Post/Check IP

Migual if you have a cd you will find it all there
for me to explain would confuse the issue as i seem to use trade terms maybe.
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 102
Registered: 3-2005
Posted on Tuesday, 14 February, 2006 - 19:05:   Edit PostDelete PostView Post/Check IP

I found it! would be needed to shorten or lenght a rod for levelling, is it? but it must be done in each side left and right and in front and rear? The CD is clear in most chapters, but in this point is no so extend and explainful.

Thank you Pat for your time and patience!!
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Bill Coburn
Moderator
Username: bill_coburn

Post Number: 611
Registered: 4-2003
Posted on Friday, 17 February, 2006 - 10:10:   Edit PostDelete PostView Post/Check IP

MIguel

For starters. If you exhaust the systems by pumping the brake pedal until the brake lights come on and then pump some more to be sure the systems are truly exhausted, then push the car back and forwards a few feet, does it then sit level?
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 103
Registered: 3-2005
Posted on Friday, 17 February, 2006 - 19:28:   Edit PostDelete PostView Post/Check IP

Bill, i will do that tomorrow Saturday.
I suposse that you mean to do all the procedure with engine not running, do you?
I will post the results.
Thank you!
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Bill Coburn
Moderator
Username: bill_coburn

Post Number: 612
Registered: 4-2003
Posted on Friday, 17 February, 2006 - 22:48:   Edit PostDelete PostView Post/Check IP

Yes Miguel. The fundamental levelling part of the car are the Springs. They must be right before any consideration of the levelling system. And if the springs have sagged it is quite wrong to use the levelling to correct them.

If you exhaust the accumulators the levelling cannot work and you will be able to see just what the condition of the springs are.
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 104
Registered: 3-2005
Posted on Friday, 17 February, 2006 - 22:56:   Edit PostDelete PostView Post/Check IP

Ok, thank you for the explanation! I will post the results tomorrow.
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 105
Registered: 3-2005
Posted on Sunday, 19 February, 2006 - 21:29:   Edit PostDelete PostView Post/Check IP

Hello again,
after depressuring the hydraulic circuit as described before, till both red lights were on, i moved on and back the car in neutral over 3 meters on each direction. After i also pulled up and pushed down a few times each corner of it.
After doing that it still remains unlevelled in the same proportion than before.
A point apart of this i have to say that it drives stable and does not do any strange movement while cornering or driving in normal roads at normal cruise speed, as it could be expected it it had faulty suspension or the shock abosorbers broken.
After this test, would be firts needed to change springs, or any further adjustment is possible with them?
Thank you again for your time.
Ragards,
Miguel
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Bill Coburn
Moderator
Username: bill_coburn

Post Number: 613
Registered: 4-2003
Posted on Monday, 20 February, 2006 - 23:19:   Edit PostDelete PostView Post/Check IP

Now you're on the right track. I suspect the right rear spring has really collapsed and is dragging the whole side down. Fit a new set of springs at the back. If there is still a lean you may have to replace the front ones also. Let's know how you get on.
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Miguel A. Garcia
Prolific User
Username: magarcia

Post Number: 106
Registered: 3-2005
Posted on Tuesday, 21 February, 2006 - 19:45:   Edit PostDelete PostView Post/Check IP

Bill,
Thank you again for your time and help!
I will start to sarch for them and where to change them.
regards,
Miguel