Discussion
looks like AVO still not supplying decent bushes? I wouldn't expect the replacements to be any better.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
V6 Pushfit said:
AVO bushes after 1500 road miles, they’re split and oval. AVO say they’re the current bush and ‘a few people have had problems with them’.
Anyone on here had issues?
Yes my AVO bushes have all self destructed also. My AVO's seem to be a built to a budget, low quality item. The adjuster knob is terrible to use. Until you get to approx 7 clicks it is totally smooth with no noticeable click. This makes them impossible to balance equally on a soft to medium setting.Anyone on here had issues?
On the positive side they do feel OK from a driving point.
I would prefer to fit a set of better quality shocks such as Nitrons but I've never been able to get hold of the correct specification to give to them.
Moto
Moto said:
Yes my AVO bushes have all self destructed also. My AVO's seem to be a built to a budget, low quality item. The adjuster knob is terrible to use. Until you get to approx 7 clicks it is totally smooth with no noticeable click. This makes them impossible to balance equally on a soft to medium setting.
On the positive side they do feel OK from a driving point.
I would prefer to fit a set of better quality shocks such as Nitrons but I've never been able to get hold of the correct specification to give to them.
Moto
Exactly my experience, I count clicks back from full on the setting rather than up front zero but still have no real idea wether they are even or not!!On the positive side they do feel OK from a driving point.
I would prefer to fit a set of better quality shocks such as Nitrons but I've never been able to get hold of the correct specification to give to them.
Moto
nwarner said:
My AVOs have done the same after 500 miles this is the second set. Every time I move the car out of the garage there are bits of red poly. Mine are over 3 years old now so I doubt if they'll replace them again. Saving up for some different replacements.
Yes they should replace them, mine were older than that just send a photo of the knackered bushes to their email and they respond very quick. They’ve sent me a full car set so I’ll do the lot.I think they’re very good on customer service which is handy!!
However it would be good to find something better that fits.
Is there a chance they were tightened up pre-loading then chewed into that position once the car settled to ride height?
I know on one car I had we had to leave everything only finger tight until the car settled down, weight it etc before tightening everything up otherwise the bushes were at risk of deforming / tearing like the image above.
I know on one car I had we had to leave everything only finger tight until the car settled down, weight it etc before tightening everything up otherwise the bushes were at risk of deforming / tearing like the image above.
996Type said:
Is there a chance they were tightened up pre-loading then chewed into that position once the car settled to ride height?
I know on one car I had we had to leave everything only finger tight until the car settled down, weight it etc before tightening everything up otherwise the bushes were at risk of deforming / tearing like the image above.
That doesn’t really happen with these, there’s some rotation when they’re tight, it’s more the basic impact loading which hammered the bushes and they don’t seem to be able to stand it..I know on one car I had we had to leave everything only finger tight until the car settled down, weight it etc before tightening everything up otherwise the bushes were at risk of deforming / tearing like the image above.
V6 Pushfit said:
lookslike wronlgy fitted:the inner (metal) sleeve must be slightly wider than the polys. the sleeve is clamped between the chassis brackets and the bushes will rotate over the sleeve. to make this happen the bushes need to have space. in your case it looks like the bushes are tightly clamped between the chassis-brackets...therefoe they will destroy themselves.
Dollyman1850 said:
V6 Pushfit said:
Its inside I need to see. Is it literally plain tube or are their 2 circlip rings within the tube itself on the shocker. N.
Edited by anonymous-user on Sunday 24th July 10:54
LLantrisant said:
V6 Pushfit said:
lookslike wronlgy fitted:the inner (metal) sleeve must be slightly wider than the polys. the sleeve is clamped between the chassis brackets and the bushes will rotate over the sleeve. to make this happen the bushes need to have space. in your case it looks like the bushes are tightly clamped between the chassis-brackets...therefoe they will destroy themselves.
Dollyman1850 said:
A bush centre is critical on a rotating element such as a wishbone where the inner bush sleeve should clamp against the bracket / tang to allow it to rotate around the sleeve but how you can tell that from those photos eludes me anyhow.. The inner sleeves aren't so much too short as too thin in my view ( as a person who has stripped a few sets down.)
You have the later AVO's without circlip grooves and as such I would put the failure down to poor quality bushes!!
N.
You can’t tell from the photos, correct. However as I said before the sleeve is a push fit between the chassis brackets so is clamped well before significant compression of the top hat. You have the later AVO's without circlip grooves and as such I would put the failure down to poor quality bushes!!
N.
Dodgy material spec yes as I mentioned earlier but increasing the sleeve size will be counter productive with less bush material so increased risk of splitting.
IMO AVO need to increase bush strength while marginally reducing the top hat depth to prevent any pinching on fitting.
I wonder how many cars are running around with knackered AVO bushes because owners thought they were fit and forget so haven’t checked.
Dollyman1850 said:
V6 Pushfit said:
You can’t tell from the photos, correct. However as I said before the sleeve is a push fit between the chassis brackets so is clamped well before significant compression of the top hat.
Dodgy material spec yes as I mentioned earlier but increasing the sleeve size will be counter productive with less bush material so increased risk of splitting.
IMO AVO need to increase bush strength while marginally reducing the top hat depth to prevent any pinching on fitting.
I wonder how many cars are running around with knackered AVO bushes because owners thought they were fit and forget so haven’t checked.
I would fit Nylatron or Delrin To take all the play away !Dodgy material spec yes as I mentioned earlier but increasing the sleeve size will be counter productive with less bush material so increased risk of splitting.
IMO AVO need to increase bush strength while marginally reducing the top hat depth to prevent any pinching on fitting.
I wonder how many cars are running around with knackered AVO bushes because owners thought they were fit and forget so haven’t checked.
N.
RobXjcoupe said:
Dollyman1850 said:
V6 Pushfit said:
You can’t tell from the photos, correct. However as I said before the sleeve is a push fit between the chassis brackets so is clamped well before significant compression of the top hat.
Dodgy material spec yes as I mentioned earlier but increasing the sleeve size will be counter productive with less bush material so increased risk of splitting.
IMO AVO need to increase bush strength while marginally reducing the top hat depth to prevent any pinching on fitting.
I wonder how many cars are running around with knackered AVO bushes because owners thought they were fit and forget so haven’t checked.
I would fit Nylatron or Delrin To take all the play away !Dodgy material spec yes as I mentioned earlier but increasing the sleeve size will be counter productive with less bush material so increased risk of splitting.
IMO AVO need to increase bush strength while marginally reducing the top hat depth to prevent any pinching on fitting.
I wonder how many cars are running around with knackered AVO bushes because owners thought they were fit and forget so haven’t checked.
N.
I’m pretty sure it’s a material issue, the bushes need to be harder and ideally a rubber insert compete with integral sleeve so it’s one insert.
Solid hard bushes? Not for a road car as it negates the whole idea of a shock absorber and would transmit far greater impact force to 50 year old chassis welds than is healthy.
Dollyman1850 said:
V6 Pushfit said:
The bushes are a tight fit to start, with the sleeve compressing further. It’s a vice job to press the sleeves in so I don’t think it’s any looseness that’s an issue (or at least initially!).
I’m pretty sure it’s a material issue, the bushes need to be harder and ideally a rubber insert compete with integral sleeve so it’s one insert.
Solid hard bushes? Not for a road car as it negates the whole idea of a shock absorber and would transmit far greater impact force to 50 year old chassis welds than is healthy.
we will agree to disagree on that one. I’m pretty sure it’s a material issue, the bushes need to be harder and ideally a rubber insert compete with integral sleeve so it’s one insert.
Solid hard bushes? Not for a road car as it negates the whole idea of a shock absorber and would transmit far greater impact force to 50 year old chassis welds than is healthy.
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