Bad News... - BMW Forum

spiff325is · 10-07-2004, 06:35 PM

Okay, my car, and everything on it is just fine, except for one...two...minor things...

My power steering leaks fluid hardcore and needs full refill every 4 days(not as big as the problem of what i am about to say).

my driveshaft/driveline(the big steel black pole...LOL), that drives your back wheels(from the tranny), is hitting the underpart of my car, and makes a really loud knocking noise(whether its in gear or not), if my car is rolling, it makes this noise, and the faster i go, the faster it knocks.

I had to get it towed home by our van last night, at 5mph, which means that it would only knock about 60times per minute.

It sucks....and this means that if i want my car fixed, that i need to have it towed to the shop.(hopefully triple A would be willing to do that).

Im not sure what exactly its hitting, but its metal ofcourse.

For those with E30's, you will understand what im talking about(location wise i think).

Okay, where the cat is, right above that(after the tranny mounts), there is like a big metal heatsheild bolted to the undercarriage of the car, i believe its hitting that, so i think a driveline mount or something is either gone, or EXTREMELY worn.

any suggestions/commet/money to be donated, is appreciated. thanks.

-Dan

Bimmin'88 · 10-07-2004, 07:33 PM

That sucks!....there is a pre-load bearing in close proximaty to the drive line yoke..maybe the prob?? Its housed in a plastic casing looked weak to me.

Taking the driveshaft out is not that bad...I had to do that to my car as soon as i got it home to remove and fix the gas tank...it could save you big $$ to do it yourself.

good luck.

spiff325is · 10-07-2004, 08:01 PM

but i believe i have to drop the entire exhaust system, and i heard thats a bitch.

But id rather pay my mechanic to do, cuz he does a really good job, and id rather not mess it up.

billB · 10-07-2004, 08:03 PM

Spiff325

There are two possibilities to your problem:

A: BMW driveshafts consists of two pieces connected together by A CENTER SUPPORT BEARING about $80.00.
B: closer towards the tranny there is A FLEXIBLE DISK (rubber) $40 which acts as a coupler plus a cushion. This cushion also dampens unwanted driveshaft vibrations.

Check the above items and enjoy your car afterward.
regards
billb

Torque · 10-07-2004, 08:11 PM

i think God wants you to buy a e34... they are the ultimate bimmers and they never break down.

jk. i hope its nothing costly bro ! good lck

Bimmin'88 · 10-07-2004, 08:51 PM

Quote:

Originally posted by spiff325is@Oct 7 2004, 06:01 PM
but i believe i have to drop the entire exhaust system, and i heard thats a bitch.

But id rather pay my mechanic to do, cuz he does a really good job, and id rather not mess it up.

[snapback]207229[/snapback]

Yep...the exhaust has to go...its not over your head...its just bolts. Either way I feel your pain and wish you the best of luck.

It sucks when the Bimmers down...

ghead

spiff325is · 10-09-2004, 11:30 AM

yeh, this weekend, we are putting it on stands and such, and are going to start the process in the garage, hopefully i can fix the problem(which is mostlikely the guibo or a mount according to my dad) before the 30th which is homecoming, cuz id like to be able to take my car to it.

spiff325is · 10-14-2004, 11:02 PM

so i found out, that it was the Center Bearing on my driveshaft that was making all the noise. apparently, the center bearing broke in half..(somehow), and so the u-joints were rubbing on that bar that holds the bearing up, so that was the DUDUDUDUUDUDUDUD noise...

we just ordered a new guibo and driveshaft, so we will install it soon sometime.

xsperf · 10-14-2004, 11:10 PM

as far as e36 goes.. dropping the exhaust system isnt bad, if u have two people and a bunch of jack stands, its fine..

when u put ur center bearing on, make sure u preload it.. that is when u stretch the rubber.. i cant explain it too well.. pelican parts has a whole DIY that is very nice.

why are u getting a new driveshaff, do u really need one?

Aether · 10-15-2004, 08:42 AM

My power steering fluid was leaking like mad too.
I had my steering rack rebuilt, that fixed it.

spiff325is · 10-15-2004, 08:03 PM

how much did the rebuilding of the steering rack cost?

we are getting new shaft so that everything can be rebalanced, and you should have a special machine or whatnot to do the cetner bearing, thats what i hear.

and we thinks it better to just get a new one.

somehow, the guibo was missing a bolt? so we are getting a new one, cuz the old guibo is worn.