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View Full Version : Suspension tollerences.


twinturbo
23rd June 2010, 07:39 PM
I trial fitted the rear wishbones yesterday and confirmed what may be an issue.

They were a very tight fit, so much so that I had to give the bracket some attention with my engineers fettle.


Now I bought the chassis second hand all bracket/plated up so don't fully know it.

I took out my Micrometer tonight and had a measure.

Book shows suspension brackets as 44MM between internal faces. My brackets seem to be comming out at 42.5ish nearest the base plate.

Crush are spot on at 44mm
Wishbone tubes are comming up at 35.1ish
Bushes lip is ~4mm book is 4.5mm

so 4+4+35.1 = 43.1 ( bush + tube + bush ) so that comes up .9mm short.

however 43.1 is .6mm more than the chassis braket,
and the difference between the crush tube and bracket is 1.5mm


So....


Am I being over critical, they fit up fine with the bracket "EASED" .

TT

Twin
23rd June 2010, 10:03 PM
picky as fook!

but what do I know, i've been on the cider all day!

well done Engeeerrrland :D

twinturbo
23rd June 2010, 10:08 PM
shudit, i dont give a c... about football :D

TT

Twin
23rd June 2010, 10:13 PM
Niether did I until the cider kicked in!

Liverpool supporter :D
England fan!!!;)

RAYLEE29
23rd June 2010, 11:05 PM
Hi, make the crush tubes .5 mm longer than the distance across the fitted bushes then tweek the brackets to suit you can bend them a little with an adjustable spanner,
make sure they move ok once fitted up slightly stiff is ok but you shouldnt need to use any real force to move them up and down.
oh and its not being overly fussy these cars are all about handling after all.
Ray:)

twinturbo
24th June 2010, 09:19 AM
sound like I will be more or less OK then with a little tweaking of the brakets.

Cheers.

TT

3GE Components
24th June 2010, 09:32 AM
The thing you need to make sure is right is that the area where the poly bush sits in the bracket is square to the end of the crush tube.

Kind regards

John

twinturbo
24th June 2010, 10:01 AM
Yeah I thought about that. what I am going to do is make up a 44mm long block the width/height of the bush.

Then spread the bracket, fit the block and then clamp up the bracket to fold it back flush against the block making it nice and square. therby making it sit correctly in the apature.

TT

Twin
24th June 2010, 10:05 AM
Sounds like a good idea!

Sorry about my drunken input last night :o

twinturbo
24th June 2010, 10:26 AM
Right, Just need to make up a 44mm block :D

TT

RAYLEE29
24th June 2010, 01:02 PM
Sounds like a plan. you could turn a dummy slightly larger diameter than the bushes and fit that between each bracket to slightly remodel the brackets whilst keeping them square.
Ray:)

twinturbo
24th June 2010, 01:49 PM
A 1U Network switch is 44.45mm heigh. :D

Must have something kicking around to do the job.

TT

flyerncle
24th June 2010, 09:52 PM
One thing to lookout for is the length of the bush tubes,if they are not all the same exact length you wil have a mismatch in measurements as I have found out my self and it all adds up to making suspension angles etc all to cock.