Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: geoffr70 on 20 November 2011, 19:39:10

Title: How much play in wish bones?
Post by: geoffr70 on 20 November 2011, 19:39:10
Hi peeps

After developing low pitched knocking on the front in the last few weeks, I got under and had a look.

Drop links appear ok, all bolts etc tight, wish bones are cheap ones, When i levered the front bushes with a bar I easily got 1cm of movement without trying. When i go over one particular, slightly raised manhole cover it always pulls and tramlines on it.

How much movement should there be in the Bushes? Not much? Not as much as this i bet? I think it is the wishbone knocking on the frame due to fubarred bushes? Does this sound right to everyone? Although I couldn't see any marks. It only happens when i go over bumps/holes/bad surface etc.

Also, when i fit new wishbones, when torquing up the front bush, I think I'll hand tighten the front bolt, then lower onto breeze block (to allow more access whilst still loading the wheels), then fully torque up. Can anyone see any probs here?

Thanks
Title: Re: How much play in wish bones?
Post by: Shackeng on 20 November 2011, 19:51:58
I tried cheapo wishbones a couple of years ago, the front bushes were gone within about 4000 miles. False economy I'm afraid. :(
Title: Re: How much play in wish bones?
Post by: Michael2.6 on 20 November 2011, 19:59:36
Fit new wishbone bushes  do not fit pattern ones

See if it makes any difference
Title: Re: How much play in wish bones?
Post by: geoffr70 on 20 November 2011, 20:04:54
Can you buy the front bushes seperately? If so where from and how much? (I have an acquired aversion to dealers as they're miserable unhelpful money grabbing barstewards). Do I need a press to put standard bushes in - I'm not going to fit polys.

Thanks
Title: Re: How much play in wish bones?
Post by: Michael2.6 on 20 November 2011, 20:11:08
Yes you can buy seperately.

vauxhall dealers

a big metal work vice to press them in will do
Title: Re: How much play in wish bones?
Post by: Kevin Wood on 20 November 2011, 20:12:29
There will always be a bit of movement in the front wishbone bushes. The question when it comes to deciding if they are shot or not is how easily they can be deflected. By your description they sound past their best although knocking noises are generally more often down to the anti-roll bar drop links so be sure the check them too.

My advice would be to cut the old wishbone bushes out and replace with poly bushes. Rubber front wishbone bushes always give a degree of tramlining and vagueness to the steering, IME, and even quality bushes often only last a few thousand miles whilst some cheap ones last longer. Poly bushes are also much easier to fit.
Title: Re: How much play in wish bones?
Post by: Jimbob on 20 November 2011, 20:13:11
Yes you can buy seperately.

vauxhall dealers

a big metal work vice to press them in will do

Have you tried!

Try a 10 tonne press!
Title: Re: How much play in wish bones?
Post by: Kevin Wood on 20 November 2011, 20:26:52
Yes you can buy seperately.

vauxhall dealers

a big metal work vice to press them in will do

Have you tried!

Try a 10 tonne press!

Indeed. You haven't got a prayer without a decent press.
Title: Re: How much play in wish bones?
Post by: geoffr70 on 20 November 2011, 20:43:57
OK thanks for that advice! The current w/b are only a year/6k miles old!

I tried to check the drop links as much as poss ut seemed ok.

I think I will poly bush after all then (cheaper than new w/b, chrimbo and all that!) despite that fact i want my Elite for smoothness - I like the fact it is sloppy and vague - to a degree!

Will I be able to fit poly bushes with these a set of these bad boys?

http://www.holmatro.com/rescue/en/m1185-2-1686/sp-4240-c.aspx

I would've thought so, I can just press them in can't I?

Thanks peeps
Title: Re: How much play in wish bones?
Post by: aaronjb on 20 November 2011, 20:59:07
Poly bushes push in with just your fingers. You just need a drill and a saw to get the old ones out.
Title: Re: How much play in wish bones?
Post by: Kevin Wood on 20 November 2011, 21:06:06
Yep, just remove the rubber from the old wishbone using a hole saw, drill, or melt it with something hot, etc.

Then cut a slot in the outer metal cylinder of the bush with a reciprocating saw being careful not to cut into the wishbone, so the outer can be pushed out. Poly bush will then just push in by hand.

It can be done with the wishbone still on the car.
Title: Re: How much play in wish bones?
Post by: feeutfo on 20 November 2011, 21:08:46
Hi peeps

After developing low pitched knocking on the front in the last few weeks, I got under and had a look.

Drop links appear ok, all bolts etc tight, wish bones are cheap ones, When i levered the front bushes with a bar I easily got 1cm of movement without trying. When i go over one particular, slightly raised manhole cover it always pulls and tramlines on it.

How much movement should there be in the Bushes? Not much? Not as much as this i bet? I think it is the wishbone knocking on the frame due to fubarred bushes? Does this sound right to everyone? Although I couldn't see any marks. It only happens when i go over bumps/holes/bad surface etc.

Also, when i fit new wishbones, when torquing up the front bush, I think I'll hand tighten the front bolt, then lower onto breeze block (to allow more access whilst still loading the wheels), then fully torque up. Can anyone see any probs here?

Thanks
From your description, bushes fubar. Check for splits in the rearward bushes, if ok fit Polly. If not fit polly to new wishbones, then fit to the car, unless you wa t to get the use out of the oe bushes. But be aware fitting Polly to loose wishbones is easier.

If fitting Polly there is no need to tighten the bolts with wheels loaded.
However if fitting new wishbones with oe bushes then your plan sounds good if you have a beefy jack of 2.5 tones to lift the car high enough to place breeze blocks under. Going by this method using ramps placed umder, you'll need 6inches under the wheels to get clearance to swing a torque wrench with wheels loaded. 120nm+30degrees+15.

Saw a car today with a rattle, new drop links fitted, but shot bushes. So fitted Polly, found one of the front wishbone bolts little more than finger tight. That 'll be the rattle then!  :o

Check drop links with both wheels jacked. Any play can be felt by pulling the roll bar to drop link joint up and down.
Title: Re: How much play in wish bones?
Post by: Kevin Wood on 20 November 2011, 21:11:37
Saw a car today with a rattle, new drop links fitted, but shot bushes. So fitted Polly, found one of the front wishbone bolts little more than finger tight. That 'll be the rattle then!  :o

Beats me how those bolts ever come loose. :o
Title: Re: How much play in wish bones?
Post by: geoffr70 on 20 November 2011, 21:12:28
Yep, just remove the rubber from the old wishbone using a hole saw, drill, or melt it with something hot, etc.

Then cut a slot in the outer metal cylinder of the bush with a reciprocating saw being careful not to cut into the wishbone, so the outer can be pushed out. Poly bush will then just push in by hand.

It can be done with the wishbone still on the car.

Brucey Bonus!  8)

Thanks all you peeps!
Title: Re: How much play in wish bones?
Post by: Psychoca on 20 November 2011, 21:16:32
Saw a car today with a rattle, new drop links fitted, but shot bushes. So fitted Polly, found one of the front wishbone bolts little more than finger tight. That 'll be the rattle then!  :o

Beats me how those bolts ever come loose. :o

People who have no idea what torque is!!!   ;D
Title: Re: How much play in wish bones?
Post by: Abiton on 20 November 2011, 21:32:42
Yes you can buy seperately.

vauxhall dealers

a big metal work vice to press them in will do

Have you tried!

Try a 10 tonne press!

Indeed. You haven't got a prayer without a decent press.

Can be done with a bit of M12 studding and some blocks with suitable bits cut out to miss the central parts of the bushes, so I don't see why a really big vice couldn't work, with similar blocks.

(http://i219.photobucket.com/albums/cc138/EZ_Pete/100_0492.jpg)

No praying was required, just plenty of grease, elbow and normal.  :)
Title: Re: How much play in wish bones?
Post by: feeutfo on 20 November 2011, 21:40:57
Ime it takes just over a Ton to press the rears in.
Title: Re: How much play in wish bones?
Post by: Agemo on 20 November 2011, 21:44:33
My rear bushes went in with just a vice, perhaps I was just lucky. (For a change)  ::)
Title: Re: How much play in wish bones?
Post by: YZ250 on 20 November 2011, 21:53:01
My rear bushes went in with just a vice, perhaps I was just lucky. (For a change)  ::)

A few guys on ABS have had success with a decent vice and appropriate socket.  :y  Up to the individual if they want to have a go I suppose.

Regards
Alan
Title: Re: How much play in wish bones?
Post by: feeutfo on 20 November 2011, 22:17:36
Re being lucky....

Possibly, I managed to belt a front bush in with a hammer, once.  ;D
The other took 11 tons.  :o

It's quite easy to buckle the outside edge of the rearward bush on a press.
Title: Re: How much play in wish bones?
Post by: feeutfo on 20 November 2011, 22:22:32
Another way of checking bush play, car parked, place a foot on top of the wheel under the wheel arch and push it for and aft. If the road wheel flops back and forth, buggered bushes.
Title: Re: How much play in wish bones?
Post by: feeutfo on 20 November 2011, 22:23:38
Another way of checking bush play, car parked, place a foot on top of the wheel under the wheel arch and push it for and aft. If the road wheel flops back and forth, buggered bushes.
similar action to driving over a small 1 inch high down in a kerb, like an entrance to a drive way, or when braking. Both will see the wheel move for and aft.
Title: Re: How much play in wish bones?
Post by: TheBoy on 21 November 2011, 08:57:54
Saw a car today with a rattle, new drop links fitted, but shot bushes. So fitted Polly, found one of the front wishbone bolts little more than finger tight. That 'll be the rattle then!  :o

Beats me how those bolts ever come loose. :o
Errr, uhmmm, well, errr....

 :-[
Title: Re: How much play in wish bones?
Post by: TheBoy on 21 November 2011, 09:00:58
Yes you can buy seperately.

vauxhall dealers

a big metal work vice to press them in will do

Have you tried!

Try a 10 tonne press!

Indeed. You haven't got a prayer without a decent press.

Can be done with a bit of M12 studding and some blocks with suitable bits cut out to miss the central parts of the bushes, so I don't see why a really big vice couldn't work, with similar blocks.

(http://i219.photobucket.com/albums/cc138/EZ_Pete/100_0492.jpg)

No praying was required, just plenty of grease, elbow and normal.  :)
Rear bush tends to need 1-2t max to press out.  Front often needs 10t.

Pressing in seems to need much less, so maybe there is scope for cutting old bushes out, then using vice etc to press in.  Still need the drifts though, and must go in perfectly straight.