20 replies to this topic

[minimotion]

Made a start on building my front sub back together and found once the tie bars are fitted the bushes seem a little squashed should I be worried about this?(assume the sub is original so from a 1990 model)

Attached Files

•  861E47B4-C1BF-45CB-B8BD-AC2608CFF68E.jpeg   38.06K   7 downloads
•  6D04339E-2647-4B30-A3B7-44FDAD317815.jpeg   39.74K   5 downloads

[nicklouse]

no cup washers?

 

the nut should bottom out.

[minimotion]

Smiffys bits fitting kit with cups washers and spacers

[minimotion]

Seems like I need cup washers on the inside aswell

[nicklouse]

stainless nylocks? i hope not. and do you have the tiebar to bottom arm bolt in stainless as well? (does not look like it has enough shoulder on it).

[SolarB]

Are those polly bushes both sides? I thought that was considered bad practice and that polly on the front and rubber on the rear was the best setup for tie bars.

[hazpalmer14]

Are those polly bushes both sides? I thought that was considered bad practice and that polly on the front and rubber on the rear was the best setup for tie bars.

 

Thats what ive done to mine, it mentions on minispares site when you look at eth bushes

[Boycie]

Your subframe is shinier than my car's exterior paint job!

 

I too, have one poly and one rubber bush on each side.  The problem here, is getting a rubber bush that lasts more than 3 months...

[minimotion]

Yes nyloc locks came with the tie bar kit and also bushes so if I change my inner bushes for original ones and leave the outer poly or is it best to just change to original both ends?

[SolarB]

The theory goes that poly both sides of the subframe ear does not allow enough compliance during full suspension movement and may flex and ultimately crack the subframe ear.
A polly bush at the front keeps suspension alignment when breaking (puling the tie rod backwards into the subframe) and a rubber bush at the rear allows enough compliance for the ear.

I have the polly/rubber combination which seems to work well.

[minimotion]

Lovely thanks everyone and yes noticed something wasnt right as I welded one ear noticed it had started to crack il get some bushes on order

[cal844]

Have had polyflex poly bushes in this location (as pictured) on a road car for 6 years with no issues, also have them on my other car, fitted 3 years ago.

[SolarB]

I too, have one poly and one rubber bush on each side.  The problem here, is getting a rubber bush that lasts more than 3 months...

 

The rubber bushes I've had from Minispares have lasted 5 years so far. Though rubber from any supplier seems to be a hit and miss affair.

[viz139]

no cup washers?

 

the nut should bottom out.

Even with one poly I torque to 52Nm as per Rover spec. never any problems

[Cooperman]

It is a good idea to weld a triangular support plate, made from 4 mm thick steel, onto each front ear to prevent any risk of fatigue failure of the welding on the original 'ear'.

Remember, these sub-frames are old and have already done a lot of work.