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Sorry, but i can’t find info on installing the Delrin bushings.
Any tips on installing these. right now I can’t see how the control arms are going to fit in there.
I have read alot of posts on the rubber and urethane ones. rubber and urethane stretches but what about the Delrin.
I know a press will be needed, but Just looking for tips to make it easier.
Thanks
these are offset ones from Bimmerworld.
Can you post a pic so I can see what you’re taliking about? Are you trying to figure out how the control arm fits into the bushing, or how the bushing fits into the bracket?
My question is What is the easiest way to get the Control Arm in to the bushing?
http://picasaweb.google.com/dpereda/SpecE30/photo#5175885678921657698
The easy way to do this is to have Bimmerworld press the control arm bushings into new lollypops, or whatever the circular widgets are called that hold the bushings. You’ll save some money by simply sending them back and having them do it. Otherwise you’ll probably have to call around to shops and find someone who has a press and is familiar with this. Alternately some of they guys here have their own shops like Jim Pantas and Robert Patton. They could probably do it for an appropriate donation to their children’s college fund.
Note that a bolt is supposed to be put into the lollypops and into the bushing to prevent the bushing from rotating. So there needs to be a hole in the lollypop that has threads tapped into it. If not, make that hole before putting the bushing in.
You do not need a press to get the control arm into the bushing. Only the bushing into the lollypop.
I had these replaced a couple weeks ago. Rob@BimmerWorld suggested Delrin over Urethane. He said that the Urethane ones are pretty hard, so they’re not a bad solution, but still not as good as Delrin for a dedicated track car.
I used to work at BMW of Fairfax (I hate that place)… They used Spray Nine :huh: to get the control arm into the bushing. Granted delrin are not pliable, but the spray nine should still work. Make sure the bushing material is in the bracket properly, and I beleive you should be using a set screw from the bracket into the bushing material - do a quick search on that - then use a block of wood to tap the bushing/bracket assby onto the control arm (control arm should already be mounted at this point). Make sure to set the car back on the ground withing 30 minutes of installing the bushings onto the arms & bolting the brackets to the chassis.
Thanks Ranger and NOT_MPOWER,
I do have access to a press and I was hoping it was something I could do.
My concern is that hole in delrin seems to be about 1/8th of an inch to small and I didn’t think Delrin is that flexible and I know it is going to be a PITA.
Some guys talk about heating or freezing parts to get them to fit.
In the end I might just send them out to get done.
NOT_MPOWER are you saying that you can pound the control arms in to the Delrin bushing?
Aren’t Meyle control arms just a bit different than oem? Anyone? Or was it just a difference in the shape of the “ear” just past the bushing post?
Peakracer.com wrote:
[quote]
NOT_MPOWER are you saying that you can pound the control arms in to the Delrin bushing?[/quote]
Not sure now as I hadn’t seen the info about the size difference between the arm’s post & hole in the bushing.:unsure:
I pressed the bushings into the lollipops. Made sure the hole for the control arm was oriented properly (search for posts - there is a drawing in one of them that clearly shows the orientation) and then drilled and tapped the outside of the circle for a ¼-20 socket head cap screw to keep the bushing from rotating in the lollipop.
Then I used a large press to press the lollipop/bushing assembly onto the control arm before mounting them in the car. I know it doesn’t look like it will fit but it will. Make sure you press the correct lollipop assembly onto the correct control arm.
Good luck.
Bob
You are correct. The straight shaft part is stock dimensions but the skid ‘ear’ is thicker.
Scrub that paint off too. Tolerance on these arms is not tight. Not brand specific but in general as they are designed technically for a rubber part so a tight tolerance isn’t needed.
Mine were tight, too and i had to tap the bushing into the lollipop w/ a hammer and then i hammered the bushing/lollipop onto the control arm while off the car.
Then i installed the control arms onto the car and from there you can rotate the bushing/lollipop as needed w/o TOO much fuss.
btw, the 30min rule doesn’t apply here. We’re not ‘adhering’ the bushings to the control arm as in the stock bushing case. The control arm will rotate in the bushing as designed w/ the delrin CABs.
Like i said in another thread, mine were tight and would pop a lot for the first few track days. Theyre good and smooth now though.
