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-   -   Missing cross-bar?!? (http://www.bimmerfest.com/forums/showthread.php?t=570212)

Tidan 09-22-2011 04:38 PM

Missing cross-bar?!?
 
I think my car is missing the cross-bar behind the front cross member. The piece seen in this pic:
http://www.pelicanparts.com/BMW/tech...Flush/pic3.jpg

Mine is missing, but I can see where it used to be bolted up. I'm wondering if when the prior owner changed the clutch, he forgot to put it back on.
Does anyone know the proper name of this piece so I can order a new one or is there a better option?

Thanks.

ZeGerman 09-22-2011 04:45 PM

It's called the "crossover", and it's part number 7 in the diagram below:

http://realoem.com/bmw/diagrams/z/l/114.png

Part number: 51718135880

It's cheap to buy new, bud I'd definitely just buy one from a scrap yard instead. You can probably get one for a few dollars. You'll also need the hardware, of course.

Tidan 09-22-2011 05:21 PM

Thanks ZG!
I wonder if the crossover(or lack of) is contributing to my understeer problem?!?

Is there a hop up or anything that improves on the stock crossover?

ZeGerman 09-22-2011 05:53 PM

Yeah, a true cross-brace is the way to go if you want to stiffen things up.

http://c1552172.r72.cf0.rackcdn.com/14759_x600.jpg

LINK

Tidan 09-22-2011 06:25 PM

Do alot of people run the cross-brace? Does it make any difference in handling?

Not sure where to look for the standard brace/crossover. Not having much luck finding one.

FenderBender 09-22-2011 06:30 PM

No, it won't make a difference, at least one you can feel, but it looks nice :)

ZeGerman 09-22-2011 06:33 PM

Do you have a cross brace, Matt?

Of course, I've heard different things from different people regarding whether or not a difference can be felt with an x-brace installed. Same thing for strut tower braces in the E36.

FenderBender 09-22-2011 06:40 PM

No, but I know numerous people with them. I'd like to get one eventually, mainly to protect my turbo and lines from debris as it sits almost right above it.


I kind of rate these things at pretty much pointless/will never notice the difference.

Front strut brace
Rear strut brace
X Brace
Intake
Exhaust

FenderBender 09-22-2011 06:41 PM

I don't really see how a thin metal brace can keep the whole underbody of a car from moving, ya know?

cj.surr 09-22-2011 06:49 PM

I didn't notice any difference before and after installing the bar OP is referring to. I just installed it because it might take a little of the blow away from the oil pan on large speedbumps.

ZeGerman 09-22-2011 06:51 PM

I dunno. I think bracing things up has the potential to make a good bit of difference. The unibody is essentially split down the middle by the trans tunnel, which I imagine greatly affects structural integrity. Seems like bracing those two sides together can make a difference.

An S54 Z3M roadster owner I know swears the front strut tower brace he installed made a huge difference.

FenderBender 09-22-2011 06:54 PM

I've heard of owners swearing by strut braces too, I normally just chuckle. However I do plan on getting a nicer one eventually.


Karl, you remember the guy who was going to start making titanium ones around here?

ZeGerman 09-22-2011 07:03 PM

Yeah, it's Rooster1986. Thread HERE. I'm assuming the plan fell through.

Tidan 09-22-2011 07:58 PM

Well, at this point I'd be happy with having the plain old stock bar that I appear to be missing. :(

cj.surr 09-22-2011 08:39 PM

I have one that I can ship to you if you really can't find one on craigslist...

ZeGerman 09-22-2011 10:23 PM

No junkyards in your neck of the woods, Tidan?

crisscross 09-23-2011 06:29 AM

Quote:

Originally Posted by ZeGerman (Post 6335071)
I dunno. I think bracing things up has the potential to make a good bit of difference. The unibody is essentially split down the middle by the trans tunnel, which I imagine greatly affects structural integrity. Seems like bracing those two sides together can make a difference.

An S54 Z3M roadster owner I know swears the front strut tower brace he installed made a huge difference.

I've seen a braced up m3 (front strut brace, rear tower brace, and cross brace) where the owner put the oem jack in the front jack spot, and lifted the entire side of the car. The was hardly any flex in the thing at all. :dunno:

IgotBMW 09-23-2011 06:31 AM

If you're in SoCal (I'm on my phone so I can't see your location), you can have mine. Off 97 328i. There's also 2 BMW junkyards located here if you want their info I can provide.

Tidan 09-23-2011 07:23 AM

Wow, thank you for all the generous offers!
I'm in SoCal, outside of San Diego (in the mountains).
I'd like to get it taken care of while I have the car up on the jack stands - I'm doing the radiator, hoses, front sway bar, etc.... ;)

ZeGerman 09-23-2011 08:08 AM

On a side note, if you're replacing the radiator, double check ahead of time to see if you have the crimp on hose clamps for the small coolant overflow hose which runs along the top of the radiator and into the expansion tank. You'll want to replace that with a screw-type hose clamp (which BMW should have used in the first place...).

IgotBMW 09-23-2011 08:34 AM

I'm in Cerritos. 91/605 if you want to come by pick it up this weekend.

The two junkyards for future needs are

Bavarian Auto Recycling
3688 Omec Circle Rancho Cordova, CA 95742
From outside the US call: (916) 635-4269

Pride Auto Parts
12300 Branford
Sun valley ca
818-890-1600 Gary

Tidan 09-23-2011 09:04 AM

Looks like its a couple hour drive each way for me.
Let me see if I can get the radiator, swaybar, etc... done by tomorrow.
Thanks!

Tidan 09-28-2011 10:27 AM

Finally found a junk yard down in Chula Vista that had ONE E36 that still had the crossover bar. And, appearantly someone had allready removed the bell housing or clutch and tossed the bar aside so I didn't even have to crawl under in the oily dirt to get it! :)
Not sure what bolts were needed but I grabbed some off the chassis that fit the threads.
$4 entry fee
$10 for the bar
$1 tax
$20 in gas driving damn near to the international border

Total: $35.00 :confused:

Though I did find some nice turns to drift around on the way to and from. So it wasn't a total wash! :)

jmo69 09-30-2011 07:04 PM

I replaced my bar with an X-brace, the one pictured in post #4, tightened up my front end considerably along with my Sparco solid strut brace. Plus the extra protection under my oil pan.

http://i196.photobucket.com/albums/a...install005.jpg
http://i196.photobucket.com/albums/a...brace006-1.jpg

Tidan 09-30-2011 10:08 PM

Nice! Did you notice any handling difference? Did it reduce any understeer?


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