Does this sound like worn shocks?
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- Ben Harris
- 480 Is my middle name
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Does this sound like worn shocks?
On my way home from work today, whist moving in a straight line amongst traffic that kept alternating between 40mph - 50mph - 40mph - 50mph..... I noticed that every time I put my foot on the accelerator, the car pulls slightly to the right, and then when I take it off again, it pulls to the left. I'm guessing that the front of the car is lifting higher on one side (right?) when accelerating and making it move to the right, and then dropping lower on the same side when engine braking, causing the other side to be higher (left?) and making it go left. Does this sound feasable?
Is this likely to occur if one shock had worn more than the other, or does it sound more like a damaged / worn spring? I've ruled out sticking brake, as this would cause it to pull to the same side on both acceleration, and deceleration.
Oh, and this is on my 480 with standard suspension, not the lowered one!
Ben.
Is this likely to occur if one shock had worn more than the other, or does it sound more like a damaged / worn spring? I've ruled out sticking brake, as this would cause it to pull to the same side on both acceleration, and deceleration.
Oh, and this is on my 480 with standard suspension, not the lowered one!
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
- Ben Harris
- 480 Is my middle name
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I doubt it's the wishbone. I can't think of any reason it should have become bent.
I've been a bit suspicious about the shocks on it anyway. I've got used to the hard suspension on my other, lowered 480, and I can't tell if this one is too soft (worn shocks), or if I'm just comparing it with the uprated suspension of the other one, and finding it soft in comparison.
I think, in light of today's discovery, it probably is the shocks. I just wanted someone else's opinion that my theory was possible! I've also noticed that the wheel to wheelarch height isn't the same on all the wheels (left-right). I'm not quite sure what's causing this, but if worn shocks could be the cause, then I'll definatly get some new Bilsteins to put on it! (Just looking for an excuse!)
Ben.
I've been a bit suspicious about the shocks on it anyway. I've got used to the hard suspension on my other, lowered 480, and I can't tell if this one is too soft (worn shocks), or if I'm just comparing it with the uprated suspension of the other one, and finding it soft in comparison.
I think, in light of today's discovery, it probably is the shocks. I just wanted someone else's opinion that my theory was possible! I've also noticed that the wheel to wheelarch height isn't the same on all the wheels (left-right). I'm not quite sure what's causing this, but if worn shocks could be the cause, then I'll definatly get some new Bilsteins to put on it! (Just looking for an excuse!)
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
- volvofox
- 480 Is my middle name
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get a tracking done !
wouldn't harm in any case.
how was the 'waterproof'level of the road. was it angled sharply ?
did trucks drive grooves in the road ?
worst case senario and a long shot : differential. check oil of gear box. look at steel content (steel chips) of the bottom plug.
I think your spooked. do as the italians say "piano"
wouldn't harm in any case.
how was the 'waterproof'level of the road. was it angled sharply ?
did trucks drive grooves in the road ?
worst case senario and a long shot : differential. check oil of gear box. look at steel content (steel chips) of the bottom plug.
I think your spooked. do as the italians say "piano"
luck,
JPF
Nomen est Omen
JPF
Nomen est Omen
- Ben Harris
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No I haven't. That's something that MatBat also commented to me when I was talking to him earlier, and seems like quite a likely cause. I'll check them tomorrow, and report back!
Thanks for the suggestion!
Ben.
Thanks for the suggestion!
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
- volvofox
- 480 Is my middle name
- Posts: 2034
- Joined: Sun Jan 19, 2003 2:18 pm
- Location: Born, Netherlands
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come to think about it : I noticed my car pulled to the right one morning.Frantic wrote:Have you checked all your 4 tyre pressures lately?
"meia culpa" (me to blame) I had only 1 bar in the rh front tyre, which in my case should be something upto 2.0 bar. The whole cheek of the tyre was dammaged, didn't dare to take it 200 km/h to germany anymore and had to replace them fast luckyly they were on my wish list as they were done.
luck,
JPF
Nomen est Omen
JPF
Nomen est Omen
- Ben Harris
- 480 Is my middle name
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I think the word you're after in English is "camber".... and whilst there was a camber on the road, it wasn't overly steep.volvofox wrote:how was the 'waterproof'level of the road. was it angled sharply ?
Yes. Lots of trucks do tend to go along that road, but not in the lane I was in.volvofox wrote: did trucks drive grooves in the road ?
The difference between acceleration and deceleration was quite a distinctive right, then left, and once I'd noticed it, I tried it several times and it did the same each time.
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
- volvofox
- 480 Is my middle name
- Posts: 2034
- Joined: Sun Jan 19, 2003 2:18 pm
- Location: Born, Netherlands
- Contact:
your steering assy is a bit too sensitive. I think seen from the side of car the "king pin" must lean backwards on the top more. Get it tracked.
the car hops from one truckgroove into the other because the axle's of trucks are wider. , Your car can by matter of speaking not realy decide which groof to take: eiter the left or the right.
no bad idea to check tyres anytime
anyways forgot to tell: nothing to do with shocks. donot let you get fooled by peops wanting to sell shocks. It happens too many times.
thanks for learning me a new translated word : camber.
the car hops from one truckgroove into the other because the axle's of trucks are wider. , Your car can by matter of speaking not realy decide which groof to take: eiter the left or the right.
no bad idea to check tyres anytime
anyways forgot to tell: nothing to do with shocks. donot let you get fooled by peops wanting to sell shocks. It happens too many times.
thanks for learning me a new translated word : camber.
luck,
JPF
Nomen est Omen
JPF
Nomen est Omen
- chris1roll
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- Ben Harris
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Well, I checked the tyre pressures today, and they were spot on (surprisingly).... so it's not that. Also, it was doing it regardless of which roads I was driving on, so not truck groves either.
I think what's happening, is that it tends to pull to the left ever so slightly, when just driving normally. Both my 480's do this, to the same extent, and I'm sure I've read it in the manual somewhere that the steering is designed to have a slight negative camber. So... what's actually happening, is that the left pull is normal, and it's just the right pull when accelerating hard that's unusual. Driving along in the dark just now, I noticed quite a considerable rise from the headlight beam on the road when accelerating hard, which may indicate worn shocks (as I suspect). Also, the front shocks were considerably softer than the back ones, when I tried bouncing the suspension earlier on today.
I have just had the garage do a cam-belt change, and they didn't comment on anything. I'd like to think they'd have said if the engine mountings were on their way out, but I'll check tomorrow, anyway.
Do they drop or raise the engine to change the cambelt, as I can't see how they could manage to get to it without doing this? Is it possible they've done something that's caused it, as I don't remember noticing it before, but then again, that doesn't mean it wasn't there!
Any more thoughts? If you think getting the tracking checked is a worthwhile thing to do first, then I'll get that done, but as I suspect it's the shocks anyway, I'm a bit reluctant to waste money getting the tracking done first, as it'll only need doing again once I've changed the shocks!
Ben.
I think what's happening, is that it tends to pull to the left ever so slightly, when just driving normally. Both my 480's do this, to the same extent, and I'm sure I've read it in the manual somewhere that the steering is designed to have a slight negative camber. So... what's actually happening, is that the left pull is normal, and it's just the right pull when accelerating hard that's unusual. Driving along in the dark just now, I noticed quite a considerable rise from the headlight beam on the road when accelerating hard, which may indicate worn shocks (as I suspect). Also, the front shocks were considerably softer than the back ones, when I tried bouncing the suspension earlier on today.
I have just had the garage do a cam-belt change, and they didn't comment on anything. I'd like to think they'd have said if the engine mountings were on their way out, but I'll check tomorrow, anyway.
Do they drop or raise the engine to change the cambelt, as I can't see how they could manage to get to it without doing this? Is it possible they've done something that's caused it, as I don't remember noticing it before, but then again, that doesn't mean it wasn't there!
Any more thoughts? If you think getting the tracking checked is a worthwhile thing to do first, then I'll get that done, but as I suspect it's the shocks anyway, I'm a bit reluctant to waste money getting the tracking done first, as it'll only need doing again once I've changed the shocks!
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
- Ben Harris
- 480 Is my middle name
- Posts: 1163
- Joined: Wed Apr 30, 2003 5:18 pm
- Location: Cambridge, UK
- Contact:
UPDATE:
The engine mountings seem fine. I've given the car a look over, and can't see anything obviously wrong. There doesn't seem to be any play in the shock mountings (I suspected the shock top or bottom mounts, but it doesn't look like it's that). No play in the lower wishbone mountings. The brakes aren't binding or staying on, either. The only thing I could find was a small amount of play in the drivers side wheel bearing. It didn't seem to be very much, and wasn't commented on 6-months ago for the MOT, but I don't know if it's enough to cause the symtoms I'm seeing.
I've noticed that what's happening is even if I hold the steering wheel straight - the car always drifts right under acceleration, and always left under deceleration (with the steering wheel still held straight). When driving along steadily, the car stays in a straight line and doesn't wander (rules out worn steering rack as far as I can see).
Thanks for all your help so far, but this is a plea for any more suggestions! Could the slight play in the drivers side wheel bearing producue these results?
....oh, and I'm 99% ceratin this problem has appear since having the cam-belt done, but I've spoken to the garage that did it, and I agree that they didn't do anything that would obviously have caused this!
Ben.
The engine mountings seem fine. I've given the car a look over, and can't see anything obviously wrong. There doesn't seem to be any play in the shock mountings (I suspected the shock top or bottom mounts, but it doesn't look like it's that). No play in the lower wishbone mountings. The brakes aren't binding or staying on, either. The only thing I could find was a small amount of play in the drivers side wheel bearing. It didn't seem to be very much, and wasn't commented on 6-months ago for the MOT, but I don't know if it's enough to cause the symtoms I'm seeing.
I've noticed that what's happening is even if I hold the steering wheel straight - the car always drifts right under acceleration, and always left under deceleration (with the steering wheel still held straight). When driving along steadily, the car stays in a straight line and doesn't wander (rules out worn steering rack as far as I can see).
Thanks for all your help so far, but this is a plea for any more suggestions! Could the slight play in the drivers side wheel bearing producue these results?
....oh, and I'm 99% ceratin this problem has appear since having the cam-belt done, but I've spoken to the garage that did it, and I agree that they didn't do anything that would obviously have caused this!
Ben.
1998-2003 ... 1981 Austin Mini City
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
2003-2005 ... 1989 Volvo 480 ES (B18E)
2004-2006 ... 1994 Volvo 480 ES (B20F)
2006-2008 ... 1995 Mitsuibshi FTO GPX
2008-2008 ... 1994 Volvo 480 Turbo Auto (with RichMod)
2009-Onwards ... 1991 MK1 Eunos Roadster
2013-Onwards ... 1997 Subaru Impreza Turbo 2000 (Wagon)
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