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Old 07-25-2011, 11:06 AM   #1
cormier
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Rear subframe stuck

So I've searched many times and come up with the common-sense answers-- big ass pry bar, etc. After trying for a few days now I'm just ready for something to work

Nothing I'm doing seems to loosen these seized bushings even a bit -- I haven't tried heat yet due to the close proximity of the gas tank/lines

Any tips on getting the subframe down? (yes, all the bolts/pins are out)
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Old 07-25-2011, 11:21 AM   #2
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When I did mine for the first time, I used an extension or a wrench (don't remember now) that fit in the hole, and whaled on it with a sledge, back and forth. Eventually it gave way.
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Old 07-25-2011, 11:23 AM   #3
cormier
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Man I came across a post (maybe yours) that had this method and I didn't understand it until now

My question is -- how far to insert? May sound dumb but how far does the bushing go until you're at back seat lol?
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Old 07-25-2011, 11:32 AM   #4
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The bushing ends at the top of the subframe but there's about a half inch nub that sticks out, and goes into a receiver hole in the body. This is what's stuck. You don't need to insert far, you just need something to hammer without risking damaging the subframe itself. The bushing has a metal pipe through the middle, which is what's stuck in the body, and it extends all the way down. You just need something that you can use to hammer/leverage this pin back and forth until it works loose. Don't try prying or hammering the subframe, since, even if you don't damage it, any force is going to be largely absorbed by the bushing. You need jarring forces on the pin.

Keep hammerin', it'll come out
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Old 07-25-2011, 11:35 AM   #5
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you can try the extension - good idea - the rubber is what usually seizes against the body along with the rod/nut end; If you use heat - providing you DON'T have any fuel leaks- will melt the rubber making it easier to come free. to be honest...I have never done them and hate them because I watched so many tech fighting with then and mine..When they used heat, they came out.
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latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 07-25-2011, 11:37 AM   #6
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Quote:
Originally Posted by BigD View Post
The bushing ends at the top of the subframe but there's about a half inch nub that sticks out, and goes into a receiver hole in the body. This is what's stuck. You don't need to insert far, you just need something to hammer without risking damaging the subframe itself. The bushing has a metal pipe through the middle, which is what's stuck in the body, and it extends all the way down. You just need something that you can use to hammer/leverage this pin back and forth until it works loose. Don't try prying or hammering the subframe, since, even if you don't damage it, any force is going to be largely absorbed by the bushing. You need jarring forces on the pin.

Keep hammerin', it'll come out
wanna do mine??? LOL!!
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I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 07-25-2011, 11:47 AM   #7
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wanna do mine??? LOL!!
haha, the idea of working on someone else's E30 is so depressing. My car now doesn't have a single nut or bolt anywhere that I have to wonder about stripping or actually coming out.
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Old 07-25-2011, 11:58 AM   #8
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Quote:
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The bushing ends at the top of the subframe but there's about a half inch nub that sticks out, and goes into a receiver hole in the body. This is what's stuck.

Keep hammerin', it'll come out
Thanks man it was hard to get a feel for that system by just looking through the hole lol and ya hammering and prying definitely gets absorbed and just bounces back like a giant F U from the car lol

And yes -- stripping/stuck bolts suck as well my "cut count" is up to 2 halfshaft bolts an 2 of those Allen key subframe mount plate on the sideskirt bolts

I'll never put hex bolts back on my car
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Old 07-25-2011, 12:02 PM   #9
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Another trick that works well is to buy or borrow a 5/8" tap, get a 5/8 bolt that matches the thread on the tap (no brainer lol), and about a foot of 1/2" steel rod (1/2" threaded rod works fine). From the bottom side of the car tap the core of the bushing for at least a half inch. Then insert the bolt. Go inside the car drop the threaded rod into the hole where the sub frame pin came out and pound away with a BFH until the bushing separates from the chassis.
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Old 07-25-2011, 12:23 PM   #10
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Another trick that works well is to buy or borrow a 5/8" tap, get a 5/8 bolt that matches the thread on the tap (no brainer lol), and about a foot of 1/2" steel rod (1/2" threaded rod works fine). From the bottom side of the car tap the core of the bushing for at least a half inch. Then insert the bolt. Go inside the car drop the threaded rod into the hole where the sub frame pin came out and pound away with a BFH until the bushing separates from the chassis.
I second this...my subframe was stuck too when I was going to replace the bushings....this got it out in 5 mins
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Old 07-25-2011, 12:29 PM   #11
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haha, the idea of working on someone else's E30 is so depressing. My car now doesn't have a single nut or bolt anywhere that I have to wonder about stripping or actually coming out.
honestly I was kidding.

but that is how I am feeling today...lol
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I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
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Old 08-07-2011, 01:05 PM   #12
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Sooo got one side down with the tap method, this happened to the other side! Guess I'm buyin a longer bolt and re-taping :p

Thought you guys may need a laugh at my bad luck lol
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Old 08-07-2011, 02:35 PM   #13
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lol shitty. Just keep tapping and hammering, you'll get it all out soon enough.
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