Z4-forum.com

Wassup wrote: ↑Thu Sep 22, 2022 10:00 pm Finally got round to removing the worn OEM subframe bushes from the Z4MR, bit of a mare until I remembered that they need to be set on fire

IMG_20220922_113452.jpg
Off to be powder coated tomorrow along with anti roll bars, its coming together bit by bit
[/quote

Good job,I reckon every z4 needs this rusty subframe treatment,definitely a job for me in the future,but then where do you stop?

Robster68 wrote: ↑Fri Sep 23, 2022 2:58 am

Wassup wrote: ↑Thu Sep 22, 2022 10:00 pm Finally got round to removing the worn OEM subframe bushes from the Z4MR, bit of a mare until I remembered that they need to be set on fire

IMG_20220922_113452.jpg
Off to be powder coated tomorrow along with anti roll bars, its coming together bit by bit
[/quote

Good job,I reckon every z4 needs this rusty subframe treatment,definitely a job for me in the future,but then where do you stop?

It's a bottomless pit

Wassup wrote: ↑Fri Sep 23, 2022 2:26 pm

Robster68 wrote: ↑Fri Sep 23, 2022 2:58 am

Wassup wrote: ↑Thu Sep 22, 2022 10:00 pm Finally got round to removing the worn OEM subframe bushes from the Z4MR, bit of a mare until I remembered that they need to be set on fire

IMG_20220922_113452.jpg
Off to be powder coated tomorrow along with anti roll bars, its coming together bit by bit
[/quote

Good job,I reckon every z4 needs this rusty subframe treatment,definitely a job for me in the future,but then where do you stop?

It's a bottomless pit

Out of interest in what order did you remove it?well worth doing btw on an M car.
I’ll probably look for one on eBay fix it all up then just swap it over when I get the time.

Robster68 wrote: ↑Sat Sep 24, 2022 9:31 am

Wassup wrote: ↑Fri Sep 23, 2022 2:26 pm

Robster68 wrote: ↑Fri Sep 23, 2022 2:58 am It's a bottomless pit

Out of interest in what order did you remove it?well worth doing btw on an M car.
I’ll probably look for one on eBay fix it all up then just swap it over when I get the time.

Agreed, one of the front bushes had failed although not surprising on a Z4M Roadster with 106k mileage. Completely disassembled the rear axle as part of parting out the car earlier this year. Will slowly build it up by refreshing all bushes, ball joints, bearings and restore my other Z4M over the winter.

Robster68 wrote: ↑Sat Sep 24, 2022 9:31 am

Wassup wrote: ↑Fri Sep 23, 2022 2:26 pm

Robster68 wrote: ↑Fri Sep 23, 2022 2:58 am

It's a bottomless pit

Out of interest in what order did you remove it?well worth doing btw on an M car.
I’ll probably look for one on eBay fix it all up then just swap it over when I get the time.

I'm just in the middle of doing all 15 of the bushings in the rear end, the order doesn't matter so much but there are a few, at least on my 91,000mi car that really don't need doing. 33172282484, the front horizontal diff bush, 33171134872, the 2 bushes on the rear diff cover, all 3 of those are so small and compact that there is not much room for movement so they don't seem to wear.
I still have a couple bushings left to press in.

grannyknot wrote: ↑Sat Sep 24, 2022 1:45 pm

Robster68 wrote: ↑Sat Sep 24, 2022 9:31 am

Wassup wrote: ↑Fri Sep 23, 2022 2:26 pm

Out of interest in what order did you remove it?well worth doing btw on an M car.
I’ll probably look for one on eBay fix it all up then just swap it over when I get the time.

I'm just in the middle of doing all 15 of the bushings in the rear end, the order doesn't matter so much but there are a few, at least on my 91,000mi car that really don't need doing. 33172282484, the front horizontal diff bush, 33171134872, the 2 bushes on the rear diff cover, all 3 of those are so small and compact that there is not much room for movement so they don't seem to wear.
I still have a couple bushings left to press in.

That looks excellent My Z4 will be going up on axle stands in the spring for a few weeks whilst I do the same

grannyknot wrote: ↑Sat Sep 24, 2022 1:45 pm

Robster68 wrote: ↑Sat Sep 24, 2022 9:31 am

Wassup wrote: ↑Fri Sep 23, 2022 2:26 pm Out of interest in what order did you remove it?well worth doing btw on an M car.
I’ll probably look for one on eBay fix it all up then just swap it over when I get the time.

I'm just in the middle of doing all 15 of the bushings in the rear end, the order doesn't matter so much but there are a few, at least on my 91,000mi car that really don't need doing. 33172282484, the front horizontal diff bush, 33171134872, the 2 bushes on the rear diff cover, all 3 of those are so small and compact that there is not much room for movement so they don't seem to wear.
I still have a couple bushings left to press in.

I see you've gone down the OEM bushes route which I decided on too. Going for powerflex poly bushes on RTAB, sway bars and spring carriers as I've previously done on my E46 M3.

Wassup wrote: ↑Sat Sep 24, 2022 11:05 pm

grannyknot wrote: ↑Sat Sep 24, 2022 1:45 pm

Robster68 wrote: ↑Sat Sep 24, 2022 9:31 am I'm just in the middle of doing all 15 of the bushings in the rear end, the order doesn't matter so much but there are a few, at least on my 91,000mi car that really don't need doing. 33172282484, the front horizontal diff bush, 33171134872, the 2 bushes on the rear diff cover, all 3 of those are so small and compact that there is not much room for movement so they don't seem to wear.
I still have a couple bushings left to press in.

I see you've gone down the OEM bushes route which I decided on too. Going for powerflex poly bushes on RTAB, sway bars and spring carriers as I've previously done on my E46 M3.

I removed the Powerflex poly on the RTAB and have replaced them with BMW mono balls in solid aluminum case,
https://www.bimmerworld.com/Suspension- ... g-Kit.html
Nothing against the poly but the mono ball with solid housing lets the RTA swing only in the plane it is meant too with no deviation or twisting.
It will be interesting to feel the difference.

Wassup wrote: ↑Sat Sep 24, 2022 11:16 pm Swapped over to 260M wheels wrapped in brand new Michelin Pilot Sport 5 tyres with 235/40/18 front and 265/35/18 rear sizes. Really impressed with the new MPS5 rubber even though it was only a short drive and loving the reflex silver on Ruby Schwartz