Egypt mate?
What is the correct installation angle of a lollipop?
- Thread starter mrscalex
- Start date
Just bought a complete set
Drop links, Arms and Lollipop bush inserts so will find out myself.
The big question for me is orientation of the lollipop bush when pressing in, as the rubber is releved differently on different sides.
Drop links, Arms and Lollipop bush inserts so will find out myself.
The big question for me is orientation of the lollipop bush when pressing in, as the rubber is releved differently on different sides.
Look at the bolt holes. They are at a 45* angle to the body. Then you can’t get it wrong.
The consensus seems to be it doesn't matter what angle it goes on at as long as it goes on. So there's not really any concept of doing it wrong on that basis.
What I'm trying to find out is if there's a way of doing it more right or if there is a BMW recommendation. How many people knew a rear drop link is supposed to be fitted at 76 deg according to BMW?
I could just go out and install it like I usually do and let it find it's own place.
But I'd like to know in case it makes a difference. But honestly, I can't see how it can if polybushes allow movement.
I think @Paul Weller might be asking about which way to push the bushes into the lollipop frame?
You should find markings on both the old bush and the new bush which show orientation. That's if the old bush was fitted correctly.
But then the majority of people buy the complete lollipop anyway as they are not easy to change without a fight and/or special tools. Which is why when people do change just the bush they use polybushes.
Is it psychically possible to mount the complete lollipop the wrong way?
I was always trained not to install any steel shelled rubber bushes under any tension. They should only be tightened at working height to prevent premature twisting and testing of the bushes. Same applies to the rear swing arms .
Tony.
Tony.
Well that's about as official as I think we are going to get in the absence of anything specific for a Z3
Thank you.
Haha thanks mate, enjoy yourselves. View from our balcony in Turkey.
Yes this was my point. Only bought them like this because I could only find complete sets this way and £118 the lot!
Does it matter... always found these the best ones.
That's exactly what I mean. if you look at the bolt holes you can see which way round they need to go on.
- Joined
- Feb 18, 2016
- Points
- 231
- Model of Z
- Z3M Imola and Z4 (e89)
This is a load of tosh. The rear wishbone bush is there to absorb lateral and vertical forces from the wishbone. It does not need to be fixed on the wishbone in any particular position to perform this function. The polybush is a loose fitting replacement and does a superior job to OEM bushes that are a tight fit, trust me I have them fitted to my M's. As has been said OEM bushes would find their own position post fitting any way.
- Joined
- Feb 18, 2016
- Points
- 231
- Model of Z
- Z3M Imola and Z4 (e89)
Well you can disagree Tony but please explain how the poly bush works then which is a completly loose fit and and cannot be fixed in a specific position?
Who loves Ya baby?
Tony.
I'm happy whatever the answer is. I'm not determined to prove it needs to go on in a certain way.
Just determined to dispel the myth or prove it one way or another.
Just determined to dispel the myth or prove it one way or another.
Exactly why is in the question Niall. A Poly bush is different from a rubber bush. A rubber bush works in a "rotational" axis , agreed?
So , if you start with the bush locked in the "central" and unloaded position, you have movement in either direction, up or down allowing an amount of further rotation either way? But, if you lock the mounting bolt(s) in one, or other, direction then you have already loaded or twisted the rubber before applying any suspension load. That is why you should only lock the bolts with the suspension sitting in the normal , unloaded position. This is only applicable to RUBBER bushes. Fitting a Poly bush is a completely different situation altogether. My comment was made regarding rubber bushes NOT Poly type if you read it again.
Tony.
ps. This is not about how or why they work, simply about how rubber bushes should be fitted?
- Joined
- Feb 18, 2016
- Points
- 231
- Model of Z
- Z3M Imola and Z4 (e89)
A rubber bush works in a "rotational" axis , agreed?
No sorry I don't agree ref the wishbone rubbers, they are there for vertical and horizontal dampening not rotational. Ones I have fitted (OEM) have centred on shaft once normal load has been reapplied.
No sorry I don't agree ref the wishbone rubbers, they are there for vertical and horizontal dampening not rotational. Ones I have fitted (OEM) have centred on shaft once normal load has been reapplied.
If you have already tightened the pivot bolt they can't. They just twist the rubber bush.
Tony.
Tony.
Does this article reflect the points you are both making? It talks about the rubber bush working in 'rotational torsion'. And a polyurethane bush working in a quite different way.
http://www.mossmotoring.com/rubber-polyurethane-bushings/
It's certainly been an education for me all this stuff.
@t-tony as most of us don't have a 4-post ramp to tighten the bolts up with the suspension properly loaded, how good a substitute is jacking the suspension up from underneath so it's in similar compression?
http://www.mossmotoring.com/rubber-polyurethane-bushings/
It's certainly been an education for me all this stuff.
@t-tony as most of us don't have a 4-post ramp to tighten the bolts up with the suspension properly loaded, how good a substitute is jacking the suspension up from underneath so it's in similar compression?