Josh B

I bought a set of Turbo S Koni M030 shocks. I am having trouble getting the top threaded collar loose. I glass bead blasted this throughly and then cleaned it with compressor air. I let it soak with penetrant over night. Tried heat and a giant pipe wrench with no luck. Also a hammer on the specialty collar wrench - no luck. Any ideas?

theedge

Mmmmmm its the bead blast material thats jamming it probably.

Soak it in more of whatever, spray brake clean in the threads while hanging it upside down, hammer at it while theres brake cleaner or penetrant in there. Those are all I can suggest.

75ohm

Those are broke... box them and send them to me... I will pay for shipping.

Josh B

Hah I do like the soaking idea. Got the other one free by bead blasting, blowing clean and then hammering on the adjustment tool. I have a jug of purple power I can immerse this one it.

speedtek

you need to just keep working it back and forth to break up the beads. I use WD-40 and just keep working it slowly. It may take a few hours if not a day.
the hard part is getting support to turn the collar. you may need to weld on it or make something to hold it.

87944turbo

No suggestions, but I do have a spare set in my garage. PM if interested.

genikz

What about drastic temp change? IE freeze the entire thing for 24 hours, then immediately put a torch on the stuck part as soon as it's removed from the freezer?

That principal seems to work with wheel bearing races

knfeparty

what? How do you have a spare set of m030 struts just chilling in your garage? I looked for a whole year before I found any and I got reamed because both the seller and I knew that the OE ones are impossible to find.

Josh B

Tried a couple things last night

1 - Aluminum acid - brushed on, made it all shiny but still couldn't turn it
2 - Purple Power - let it soak in that and after an hour it had started to do funny things to the aluminum and there were cyrstal deposits in one place
3 - Boiled the whole thing in one of my wifes pans when she wasn't looking - got yelled at the morning and it didn't work anyways.
4 - Right after boiling it I put on some penetrant on thinking that the heat would draw it into the threads. No luck this morning when I went to turn it.

Van

Hold the strut in a vice. See the step where the end of the spring sits? Use a large brass punch and a hammer to give that area an impact to turn the perch DOWN towards the locking ring. The threads in the locking ring area are cleaner and less corroded than the threads above.

Once you get the perch moving, you'll be able to clean up the threads and take it off.

kevincnc

Genikz has the right idea, you want the body as cold as possible so it shrinks, and the ring as hot as possible so that it expands. A couple of thousandths in diameter can make a big difference.

Josh B

Well - this worked. Might have been all the other stuff I tried had loosended it up too. Got them all cleaned up. Just need that other strut mount back from the zinc guy and I can put the setup up for sale. I am hoping for $750.

75ohm

Are those the correct springs?

Josh B

I am pretty sure. I know they look a little funny in the picture but they have the three paint marks. I don't have the mount tightened down on the one on the left and of course there is no mount on the right one to provide pressure on the spring. I do know they are the right width.

Van

Looks nice, I'm glad my trick worked.

Good luck with the sale!