65 seat post

[55tmm]

stuck seat post removal

I posted about a stuck 65 seat post back in sept. Finally got it out!! Maybe this info . will help others. It was rusted solid about 4" from bottom.I first hooked a slide hammer to the plunger,hooked it to an engine hoist to take up slack,3 hits with the slide hammer broke the top off the spring rod,after the plunger was out I fished out the top cushion spring.I made a die fit into a 3/4 deep socket, welded a long 3/8 ext. to it, threaded the rod down in the seat post filled it w/ blaster let it soak for days , then made a puller to connect to threaded rod ,would not budge.Then tried a heat induction unit my buddy has,It heated up seat tube great but did't work either.Last try I made a long 1 1/8 holesaw by cutting of top part and welding 2 pcs to a pc of 1'' conduit, machining the welds down and reducing conduit o.d by .050 because after first try it was sticking on lower seat post bushing. Carefully drilled w/large 1/2 drill & holesaw to bottom of seat post tube while removing bits at a time. attatched some pictures of tools.Did all this while bike was still together. Good luck it will work.

[Underdoggie]

It wasn't a '65,
but once I encountered a swingarm frame where the post had been pinned at the bottom of its travel with a sawed-off bolt through the zirque hole, on purpose!

Even the wrong zirque installed could cause damage if the post is forced out.

....Cotten

Tom, my 65 was like that, the original owner was a short legged guy and this must have benifited him, but it sure looked stupid when nobody was on the bike

[T. Cotten]

It wasn't a '65,
but once I encountered a swingarm frame where the post had been pinned at the bottom of its travel with a sawed-off bolt through the zirque hole, on purpose!

Even the wrong zirque installed could cause damage if the post is forced out.

....Cotten

[Underdoggie]

I did all the oil stuff and heat, then attached a slide hammer to the top and out she came.

[bmh]

Heat up the tube with a heat gun before putting on the penetrating oil, the heat helps draw the oil in. I would also turn the frame upside down for this, It's most likely stuck fast down toward the bottom where the tube stiffeners are rather than up top at the bushing.

[c.o.]

That's some good advice right there, patience is the key. I did a similar thing on my pan but still ended up turning it out with veins popping in my forehead!!!

[cdndewey]

Try pouring some penetrating oil in and then tapping the frame tube to let it soak in. Walk away and let it work its way in. Come back tap it again and pour some more in and tap it again. Continue that for about a week and the try to spin the post. If it doesn't spin continue soaking and tapping. You just have to be patient and persistent.

[46EL]

I have a frame in the basement that has a stuck seat post. The bottom locknut is off and the post will not pull out. The HD restoration guide page 67 describes how to remove a stuck lock nut but not a stuck seat post. I'll get to mine hopefully one of these days... . Good Luck with yours, 46EL

[55tmm]

seat post is stuck or broken,can't get rod&springs out ,anybody have ideas