Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: feeutfo on 09 May 2012, 20:23:01
-
Adjusted assistance from minimum to medium, to max assistance via tech2 and its made little odds.
Servo tronic relay swapped. Thanks Tunnie.... But No change. No codes either in pas ecu.
Fluid level fine, oil seems good consistency compared to another car here with no pas issues.
Whipped the aux belt off and checked pas pump pulley for play/end float and resistance. Mine is stiffer in reverse direction than direction of aux belt travel, with some end float play. Other car here, spin the pas pump pulley by hand and it's exactly the same resistance spinning back or forth. No end float play at all.
So, pas pump then...? Except Rpm seems to make no differance at all to pas resistance and feel. And I know the top shock mount bearings are pitted.
Any thoughts on a fix?
Ta
-
Only time i've noticed heavy steering is on the 2.2, low revs parking occasionally, that got heavy. But few revs, fixed that.
If pump was knackered, surely be a lot heavier :-\
Odd tech2 adjustments make no differences :-\
-
Where is the servotronic relay?
The system on mine doesnt work, so the steering is heavy all the time even with the power steering working.
I've kinda got used to it but if it's a fault then I really should address it.
-
Er, I wouldn't say no differance, just very little. First time TB set it to medium assistance there was definately a sort of gyroscopic feel to the steering at speed.
Second time it was adjusted to max, which is supposed to be most unpleasant to drive, I can't say I noticed much change then tbh.
It also seems to be slightly worse when turning one way, more than the other. Although this seems to vary. :-\
-
Where is the servotronic relay?
The system on mine doesnt work, so the steering is heavy all the time even with the power steering working.
I've kinda got used to it but if it's a fault then I really should address it.
Behind dash, drives side. Remove the kick foam pannel thing, as you look up, top left, its the big red one :y
-
Where is the servotronic relay?
The system on mine doesnt work, so the steering is heavy all the time even with the power steering working.
I've kinda got used to it but if it's a fault then I really should address it.
yours I would think will be the most popular location behind the glove box. Mine, being a later car is up behind the fuse panel under the steering wheel.
-
Cheers - I'll have a look in both places.
I take it it will be red in both cases?
-
Yep. See RobG's guide for a pic.
-
http://www.omegaowners.com/forum/index.php?topic=90682.0
-
Escellent - ta very much fella's!
-
Thinking about this, I was wondering if a faulty steering box could cause this. Was more thinking aloud with possibilities, rather than any science though :-[
-
Steering box has fallen under my suspision before. ...er, now why was that...
2woody suspected someone had been in there before when triple checking the steering column to steering box alignment. Sheer bolts still had the sheer of piece/nut attached.
It was stiff then, and suspect some play in the mechanism somewhere near it, if not inside the box itself. Trying to remember if I have ever adjusted the damper....think I have. It's always been stiff though, before I played with it.
Theres four bolts around the damper adjuster nut. I don't suppose there's any use in taking that lot apart, or will a Myriad of springs and cogs come flying out?
-
Wonder if it's worth checking the servo tronic plug connector to box...
...although that would raise a code surely?
-
...although that would raise a code surely?
Would have thought so, but only codes I've seen, IIRC, is speed signals...
-
Theres four bolts around the damper adjuster nut. I don't suppose there's any use in taking that lot apart, or will a Myriad of springs and cogs come flying out?
There be dragons. :o
Pump, I reckon. Mine is not pleasant on medium assist and undriveable on max. Then again, the steering boxes are coded with the required setting, suggesting there's some difference between them. :-\
If you turn it to full lock, can you feel the engine labour, and pump whine a little?
-
Wonder if it's worth checking the servo tronic plug connector to box...
...although that would raise a code surely?
Servotronic setting is making a difference, so the servotronic module is modulating the valve on the steering box. No problems there.
Has to be something hydraulic / mechanical.
I would guess a steering box problem would give an odd feel, given the way the steering boxes work, not just low assistance but slop, tight spots and loose spots. Just a guess, though.
-
Er, mmmnot sure it Labours, there is a squish noise as it comes off full lock as the pas pressure releases. I'll check tomorrow. it does sound unusual, or at least it I thought it was at the time. :-\
The feeling is odd, like there's a pre load pulling it back to centre. Which makes me think top mount barings. And might explane the stiff direction swapping round, ESP if it's been on full lock while parking or similar, which might allow the pitted top mount barings to sit In a Differant pit giving different resistance if the race has jumped to the next "station" so to speak... Although i'd expect to feel it give in that case....No tight or loose spots at all.
Wish I had persevered finding better top mount barings now, as I needed the car, it went back together as is. :(
-
Does it self centre ok or is it a bit dead?
Can you feel a slight lock up/lumpyness at any point?
-
Does it self centre ok or is it a bit dead?
Can you feel a slight lock up/lumpyness at any point?
Your question sounds exactly as my car does... although only on left turn :-\ What would cause symptoms in your question?
-
Does it self centre ok or is it a bit dead?
Can you feel a slight lock up/lumpyness at any point?
it's very keen to self centre, I think that's the main sensation from it. like its being pulled back to centre. Like its loading up. Although it does need to be centred when straightening up out of a turn.
No locking up. Might get stiffer away from centre. Most noticeable turning into side streets(slow 90 degree corners at about 20mph type jobs) which iirc equates to about 180 degree turn of the steering wheel away from centre.
-
It sounds like it might have been adjusted up a little to tight, try backing the adjustment out a half turn.
-
Does it self centre ok or is it a bit dead?
Can you feel a slight lock up/lumpyness at any point?
Your question sounds exactly as my car does... although only on left turn :-\ What would cause symptoms in your question?
Slow to self centre or tightness would be an over tightened adjuster on the steering box.
A lumpyness could be a damaged ball in the steering box a problem with one of the ball races.
-
Does it self centre ok or is it a bit dead?
Can you feel a slight lock up/lumpyness at any point?
Your question sounds exactly as my car does... although only on left turn :-\ What would cause symptoms in your question?
Slow to self centre or tightness would be an over tightened adjuster on the steering box.
A lumpyness could be a damaged ball in the steering box a problem with one of the ball races.
Ok, thanks. Seems to confirm I need a new steering box. A bit of a thread hi-jack but any hints or how-to on changing the box?