67 bug feels unsafe

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GARRICK.CLARK
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67 bug feels unsafe

Post by GARRICK.CLARK » Sun Dec 31, 2017 4:25 pm

Hi.
I have a 67 bug.
Turbo powered type 4.
Basicaly it feels dangerous to drive.
I'm gunna tell ya how the suspension is.
Can someone tell me were its wrong. Thanks.

FRONT.
2" narrowed beam
1 pair of caster shims
standard shocks
No swaybar.
drop spindles.
Zero camber.
145 tyres
lowered more at front than rear.

REAR.
28 mm torsion bars
heavy duty spring plates
standard rear shocks
zero camber.
205-70 rears.
No Z bar.
Short 66 axles

This is basically my interpritation of a straight line strip car which isnt that good for road use

66brm
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Location: Perth, Western Australia, The Southern Hemisphere

Re: 67 bug feels unsafe

Post by 66brm » Mon Jan 01, 2018 5:50 am

When you say it feels unsafe what do you mean? Excessive body roll on corners, light steering, wandering?

GARRICK.CLARK
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Joined: Fri Aug 26, 2011 12:01 pm

Re: 67 bug feels unsafe

Post by GARRICK.CLARK » Mon Jan 01, 2018 7:59 am

It seams sensitive to cross winds. Not excessively bad weather or anything. I think the rear tyres being 205 70's and the 28 torsion bars are making it want to bounce on the rear tyres on bends. High speed straight run's makes it feel like its a bit floaty. (weight less ).

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ChadH
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Re: 67 bug feels unsafe

Post by ChadH » Mon Jan 01, 2018 10:09 am

Just a thought. Double check that the rear axle nuts are tight, and that the splines on the drums aren't wallowed out. I had my rear axle get loose once, and it made the rear very sketchy.

Ol'fogasaurus
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Re: 67 bug feels unsafe

Post by Ol'fogasaurus » Mon Jan 01, 2018 11:23 am

It kind of sounds a bit unbalanced to me. A narrow front w/o a torsion bar tied to a probably very stiff rear and big tires. On the camber bit: http://www.santafegarage.com/precision- ... explained/ this might help explain the whys and wherefores'.
Lee

My opinion is worth slightly less than what you paid for it.

GARRICK.CLARK
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Re: 67 bug feels unsafe

Post by GARRICK.CLARK » Mon Jan 01, 2018 12:44 pm

ChadH. I'll check that, good 1.
Ol'fogasaurus. Yeah there's defo something not right with it.

Today I have adjusted the rear spring plates. Got probably too much negative camber now. but the bug now sits level.(putting a spirit level on the sill shows its level).
I adjusted outer splines only. The outer spline adjustment isn't very fine to be fare. 1 outer spline on these 28 bars and the uprated spring plates was like 2 inches. Never experienced this before. Standard bars/plates adjust 1 inch higher or lower when adjusted. I'm wondering if 1 inner spline will adjust the height up 1 inch or are the inner and outer splines on these 28 bars the same when it comes to adjustment.

Ol'fogasaurus
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Re: 67 bug feels unsafe

Post by Ol'fogasaurus » Mon Jan 01, 2018 1:57 pm

Several years ago I did a post on setting preload but the pictures have been held for ransom by Photobucket (I still have the pictures and might redo the string if it is thought to be important enough). Take a look at this from Sway-a-way for some information on setting preload (https://swayaway.com/wp-content/uploads ... 6/9913.pdf) but the adjusting of the inner and outer splines still is a task that has to be done together. For swing axle rear suspensions the preload setting is (I think) a bit more important especially when "hang" (the suspension at full droop) is an important part of the mix. Also, as you know, the proper rear alignment and all four corners is so important.
Lee

My opinion is worth slightly less than what you paid for it.

Lanner
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Re: 67 bug feels unsafe

Post by Lanner » Mon Jan 01, 2018 3:20 pm

The 145 front tires are terrible. And hows your toe setting? I bet you have toe-in in the rear.

cbeck
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Re: 67 bug feels unsafe

Post by cbeck » Mon Jan 01, 2018 4:40 pm

The inner and outer have different spline counts. Inner will have to go a couple/several one way and the outer a couple/several the other way to reach the 1" you are looking for.

Ol'fogasaurus
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Re: 67 bug feels unsafe

Post by Ol'fogasaurus » Mon Jan 01, 2018 6:47 pm

cbeck wrote:
Mon Jan 01, 2018 4:40 pm
The inner and outer have different spline counts. Inner will have to go a couple/several one way and the outer a couple/several the other way to reach the 1" you are looking for.
Yup, add then subtract get the right answer. :roll:

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Marc
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Re: 67 bug feels unsafe

Post by Marc » Mon Jan 01, 2018 11:00 pm

The drop spindles are almost certain to use '68½-up tierod ends with larger-diameter studs than the `66-`68½ kind. Did you update the outer ends when the spindles were installed?

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Dale M.
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Re: 67 bug feels unsafe

Post by Dale M. » Tue Jan 02, 2018 11:01 am

Not sure about the torsion bars you mention but standard VW bars adjust like this...

Image

Image

Image

Dale
Last edited by Dale M. on Tue Jan 02, 2018 11:06 am, edited 1 time in total.
Lives his life vicariously through his own self.
1970 "Kellison Sand Piper Roadster"

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Dale M.
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Re: 67 bug feels unsafe

Post by Dale M. » Tue Jan 02, 2018 11:03 am

Ol'fogasaurus wrote:
Mon Jan 01, 2018 1:57 pm
Several years ago I did a post on setting preload but the pictures have been held for ransom by Photobucket (I still have the pictures and might redo the string if it is thought to be important enough). Take a look at this from Sway-a-way for some information on setting preload (https://swayaway.com/wp-content/uploads ... 6/9913.pdf) but the adjusting of the inner and outer splines still is a task that has to be done together. For swing axle rear suspensions the preload setting is (I think) a bit more important especially when "hang" (the suspension at full droop) is an important part of the mix. Also, as you know, the proper rear alignment and all four corners is so important.

Get browser extension that negates the photopoop ransom...

viewtopic.php?f=67&t=150157



Dale
Lives his life vicariously through his own self.
1970 "Kellison Sand Piper Roadster"

GARRICK.CLARK
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Re: 67 bug feels unsafe

Post by GARRICK.CLARK » Wed Jan 03, 2018 1:20 pm

So, I took the spring plates off tonight. put them side by side, the slots for the drive shafts are in different positions. 1 plate has more toe out adjustment than the other plate. NOT GOOD.

GARRICK.CLARK
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Re: 67 bug feels unsafe

Post by GARRICK.CLARK » Sat Jan 13, 2018 9:30 am

So a little update.
I've elongated the spring plate slots and have the rear toe now at zero for both rear wheels. Slight camber in the rear. Got the kyb white shocks fitted. No camber compensator YET.
I turned my attention to the front end.
I've now got the front end slightly higher than the rear.
Front wheels are zero camber. I do have the extra travel eccentric nuts ,but all I can get is zero camber.
My toe in is good.
Right, my dilemma is weather to buy a 3/4 sway bar for the front end.
I currently don't have a bar fitted to it.
The front is light.
no spare wheel, no bumper and not a lot of fuel.

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