phil4521
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| posted on 19/10/09 at 09:23 PM |
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Viento front suspension -where to put the washers.....
Having just read the crush tube thread again I am going to take my suspension apart and check, at the same time having spoken to Simon K I am going to
move the extra metal washers on the front as he advised:
"Top wishbone all the way back and bottom wishbone all the way forward - you are aiming for maximum caster and the washers / wishbone brackets
are the only adjustment we have. Without enough caster it will be very nervous around straight ahead and will not self centre well."
This is again not what the manual advises but I trust Simon's judgement more and I think this is commonly agreed fix? Before I commit myself
to this, others may want to comment and endorse as this is something to do at the same time and don’t want to dismantle suspension again!
Thanks.
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tomgregory2000
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| posted on 19/10/09 at 09:36 PM |
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ive done that, top bones to the back and bottom to the front max castor
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wilkingj
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| posted on 19/10/09 at 09:56 PM |
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Yes.. Top bones to the rear, and lower bones to the front of the car.
This WILL maximise the castor angle.
Its how I've done mine. It has passed SVA like that and is on the road.
The idea of the washers is to allow fine adjustment.
In my opinion you want as much castor angle as the adjustment will allow.
This has nothing to do with the length of the crush tubes issue.
Its about the relative positioning of the upper and lower wishbones to obtain the caster angle.
Rotating the Alloy Adaptor Bush in the top of the front upright will not affect the castor angle.
Castor Angle is measured along a line between the top and bottom ball joints which are located on the wishbones.
So ONLY moving the whishbone positions relative to each other will adjust the castor angle.
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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Irony
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| posted on 20/10/09 at 07:44 AM |
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Having started to take my suspension apart last night I am upset to see a film of rust forming on my crush tubes making the suspension very stiff
indeed. Also making them a ar*e to get out of the bushes. Now I am going to have to polish every crush tube and re-grease. I am going to use the
correct grease this time. This is the second time I have taken the suspension apart!
I found this article on suspension. It has a good diagram of caster angle
http://www.autozine.org/technical_school/suspension/tech_suspension1.htm
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procomp
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| posted on 20/10/09 at 08:25 AM |
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Hi
It's all very well just pushing the top arm back and the lower fowards. But you want to end up with the SAME amount of Castor on both sides not
just the maximum attainable on both sides. This means measuring the Castor angle very accurately.
Cheers Matt
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wilkingj
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| posted on 20/10/09 at 09:33 AM |
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quote:
Originally posted by procomp
Hi
It's all very well just pushing the top arm back and the lower fowards. But you want to end up with the SAME amount of Castor on both sides not
just the maximum attainable on both sides. This means measuring the Castor angle very accurately.
Cheers Matt
I quite agree.... Thats what the washer's are used for. ie getting the fine adjustment.
Obviously both sides need to be the same angle.
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
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tomgregory2000
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| posted on 20/10/09 at 11:08 AM |
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quote:
Originally posted by Irony
Having started to take my suspension apart last night I am upset to see a film of rust forming on my crush tubes making the suspension very stiff
indeed. Also making them a ar*e to get out of the bushes. Now I am going to have to polish every crush tube and re-grease. I am going to use the
correct grease this time. This is the second time I have taken the suspension apart!
I found this article on suspension. It has a good diagram of caster angle
http://www.autozine.org/technical_school/suspension/tech_suspension1.htm
Send your crush tubes off to be zinc plated and then no more rusting (for a long time anyway) i did this to mine before i fitted them
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