big_wasa
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| posted on 19/3/06 at 09:09 PM |
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Front shock position question ?
Due to dragging the top wish bone back to give good castor the shock would touch the bolt that goes through the wishbone.
Question does the shock have to run 100% vertical to the bottom bone or is it acceptable to drag it back 10mm ?
Any help gratefully received.
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big_wasa
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| posted on 19/3/06 at 09:17 PM |
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pi
 
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omega 24 v6
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| posted on 19/3/06 at 09:49 PM |
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Mmmm do the bolts for the top bone run in the same lateral centre i.e. if you had a long enough rod would it go through all the front and rear bracket
top bone mounting holes. It may be an optical illusion but it does not look like it would.
Also the rear top mounting on the fu tube looks quite far in board again perhaps that ok as well.
As for the shock mounting being back 10mm.Is that at the top or the bottom or both? it should be at both if your using bushes to avoid early wear and
failure through incorrect alingment. It would prolly be OK if you were using rod ends.
[Edited on 19/3/06 by omega 24 v6]
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big_wasa
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| posted on 19/3/06 at 10:02 PM |
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Nope its an illusion, all 4 brakets where set in one go with a jig and 12mm threaded bar so each side are all square to each other and the center line
of the chassis.
The bottom bracket is set and cant be moved but that means the top is touching the bolt  if the shock is square to the bottom wishbone.
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omega 24 v6
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| posted on 19/3/06 at 10:05 PM |
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What about moving it inboard?
I mean at the top not totally
[Edited on 19/3/06 by omega 24 v6]
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Gav
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| posted on 19/3/06 at 10:06 PM |
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as an aside i was going to do my top suspension bracket in exactly the same way as you had it, i bolted it to my shock, mounted it right and tacked it
into place, only when i came to remove the shock i realised that i couldnt get the bolt out as it was foulled by the upright tube!
ill try and post a pic tomorrow for my prototype modded bracket
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DIY Si
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| posted on 19/3/06 at 10:13 PM |
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As far as I know, the only problem you might have is that moving the shocker away from vertical will mean you'll need to use stiffer springs to
get the same effect. As it moves away, the shocker will compress less for the same movment of the bottom arm, thus reducing the effective spring rate.
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Gav
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| posted on 19/3/06 at 10:21 PM |
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actually i have the same concern with mine now to think, the problem is, is that while the bolts holes maybe be parrallel the shock will be crushing
more one one side of the bush(assuming youve not got rod ends) as the shock is at an angle the to bracket bolt holes.
I have a similar probelm with my rear shocks as its a book chassis but with a GTS rear end which means the rear bulkhead is 40mm lower than GTS which
in turn means that the suspension brackets dont line up, so ill be using shocks with rod ends on which should be a little better than the bush taking
all the strain on one side(well both sides but top left/bottom right if you see what i mean)
[Edited on 19/3/06 by Gav]
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omega 24 v6
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| posted on 19/3/06 at 10:28 PM |
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I'm just thinking aloud here but what about turing the top coil over bracket around by 90 degrees?????? It would still bind when the coil over
moves?????? It would need to be mounted at the appropriate angle to the bottom bone.
I've finished thinking and now stand back and wait to be slated
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Chippy
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| posted on 19/3/06 at 11:17 PM |
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I would say looking at your picture, that the only alternative you have is to grind of the bottom bracket. Then set up the shock with both top and
bottom brackets attached, and get it all nicely lined up, and then tack in place. Dont foreget Gav's comment about having clearance for the bolt
to come out. Not much help, but in your shoes that's what I would do.
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scotmac
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| posted on 20/3/06 at 07:52 AM |
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Options :
1. Your angle the shock backwards idea.
2. Mount the shock upside down. It appears the shock mount is higher than the bones mount (mine is level). Don't know how much higher, so
don't know how feasible this option is..
3. Move the shock mount down (or lengthen it in the downwards direction).
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big_wasa
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| posted on 20/3/06 at 07:52 PM |
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im going to flog it, that will teach it
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