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[chrisgixer]

Oh... And no leak, no obvious restriction in pipes, shocks get good pressure and rise nicely. Tired pump(s) are feasible... They've all come from vehicles that are at least 11 years old

Of course. And there's older cars with pumps that run fine.

35mm is naf all.

[Lazydocker]

Oh... And no leak, no obvious restriction in pipes, shocks get good pressure and rise nicely. Tired pump(s) are feasible... They've all come from vehicles that are at least 11 years old

Of course. And there's older cars with pumps that run fine.

35mm is naf all.

Could be more... Not really measured. It lifts right off my shoulder

I reckon the SL is going to get binned and B4s fitted

[chrisgixer]

Oh... And no leak, no obvious restriction in pipes, shocks get good pressure and rise nicely. Tired pump(s) are feasible... They've all come from vehicles that are at least 11 years old

Of course. And there's older cars with pumps that run fine.

35mm is naf all.

Could be more... Not really measured. It lifts right off my shoulder

I reckon the SL is going to get binned and B4s fitted

Can't see that being wise for you, but each to thier own.

[albitz]

Iirc S/L has an ECU of some description ? Could that be Donald ? I may have one or two lying around if you want to try a different one. 
Then again,its late, Im tired, and it may well be that no such thing exists. 

[albitz]

In fact, thinking about it that's probably the headlight levelling Im thinking of. Move along then. Nothing to see here.

[chrisgixer]

If the pump wasn't running when it should, then the ecu might at fault.

But its calling for air at the right times, lift sensor arm, the pump runs, continually, yet the car is not rising.


LD is the handbrake off, car in Neutral?

[05omegav6]

Out of interest, what's the measurement floor to the wheel arch when it stops running?

It doesn't stop... Push arm right up and it runs constantly because it is still confused into thinking the suspension is low. 

Dunno about height but it's a good 35mm or more above the standard height (when arm reconnected). 

Certainly working well enough now, just got to see if it improves handling enough for me to keep the SL or if I'm going to bin it and fit B4s with the spring assisters like Andy

Normal, as there's nothing telling the pump to stop...
Should go high enough to place a coke can on the outside edge of the wheel without fouling the arch :-/

Sounds like it is finally working right tbh

[chrisgixer]

Out of interest, what's the measurement floor to the wheel arch when it stops running?

It doesn't stop... Push arm right up and it runs constantly because it is still confused into thinking the suspension is low. 

Dunno about height but it's a good 35mm or more above the standard height (when arm reconnected). 

Certainly working well enough now, just got to see if it improves handling enough for me to keep the SL or if I'm going to bin it and fit B4s with the spring assisters like Andy

Normal, as there's nothing telling the pump to stop...
Should go high enough to place a coke can on the outside edge of the wheel without fouling the arch :-/

Sounds like it is finally working right tbh

My fault, I should of said "....stop rising".

Answer being, it lifts 35mm over standard ride height.

As he says, its better, but....

[TheBoy]

Tired pump(s) are feasible... They've all come from vehicles that are at least 11 years old

One maybe. 2?

How many threads have you seen on here where a pump runs but struggles to lift? I can only recall yours. So 2 seems too coincidental to me.


Not that I'm ever likely to get a normal estate car, but if I did and SL was an option, I'd stick to it, as the only reason for having such a car is load lugging.  Having thrown some Elite estates around the lanes round here, and some properly set up estates, although there are some compromises, the SL is still quite capable, and the benefits it provides (for loading) probably mostly outweigh the noticible differences in the suspension.

[TheBoy]

Iirc S/L has an ECU of some description ? Could that be Donald ? I may have one or two lying around if you want to try a different one. 
Then again,its late, Im tired, and it may well be that no such thing exists. 

Its integrated into the sesnor for the SL. Pre 98 and post 98 are different.

[Kevin Wood]

Well, something changed when the pump was swapped, so that speaks volumes, IMHO.

Can you get a pressure gauge of some sort on the line and see what pressure each pump is capable of managing?

[albitz]

Istr an identical car is available for comparison ? If so, take measuremenrs from that one and compare. 

[YZ250]

Istr an identical car is available for comparison ? If so, take measuremenrs from that one and compare. 

I'll have a look at mine when I've replaced the rear springs tomorrow if that's of any use. I'll make sure it is well settled before I take any measurements. Assume we are after standard ride height with engine off, ride height with engine running and how high can I get it to rise by popping the sensor off. 

Mine is a standard 3.2 Elite Estate.

[chrisgixer]

Istr an identical car is available for comparison ? If so, take measuremenrs from that one and compare. 

I'll have a look at mine when I've replaced the rear springs tomorrow if that's of any use. I'll make sure it is well settled before I take any measurements. Assume we are after standard ride height with engine off, ride height with engine running and how high can I get it to rise by popping the sensor off. 

Mine is a standard 3.2 Elite Estate.

Yep. Should be able to work out how much it rises from that.

[YZ250]

..................
So where... This pump works and lifts the car, just not to the extreme. But, thinking about it, does the Estate go really high like the saloon?

I've been out and measured mine now. As previously posted I have just fitted new rear springs and my GM self levelling shocks have done less than 4K. I've taken the car for a run to let it settle and then measured from the ground to the wheel arch, with the tape measure lined up with the wheel centre as vertical as I could get it. Floor to wheel arch with engine running measures 692mm. I then reached under and popped the lower joint off and pushed the lever right up to its stop. With the pump singing its little head off, it had risen to 715mm after about 15 seconds but seemed reluctant to go any higher. 
Bearing in mind that I tow a fairly hefty caravan and have never had any outfit level issues, I did a rough calculation. As I tend to throw everything in the boot of my car when towing, I know that the tow ball dips by less than 1" when fully loaded and sat in the drive, but then comes back up again with the engine running. This is from parked height to engine running height. You stick another 25mm in height at the wheel arch and the tow ball would rise about 2" from parked height. I assume it's then done its job. This being with the arm pushed right up of course.
Tending to agree with your highlighted bit above, as I've never had any levelling issues, even when fully loaded with bricks, but mine did not seem happy to rise above 715mm at the wheel arch. 
It certainly would not have risen to any ridiculous height. 

HTH