T250 Cylinder stuck, Got it off!

Mat · Posted: Wed Jan 11, 2012 7:40 am Post subject: T250 Cylinder stuck, Got it off!

I finally got the damn cylinder off the case on my 1969 T250, it happens it was seized to the studs. I worked on this thing on and off for over a month. I used a lot of penetrating oils and when I finally got it off it appears none had actually gotten in where I needed it. After the usual wacking with hammers I tapped out the counter bores for the studs that are on the top of the cylinder hoping to be able to screw bolts down to bear on the studs and pull cylinder off. No go, it did put a lot of pressure or pull on the cylinder but the aluminum counter bores gave out, the threads pulled. I next made a puller that would pull on the exhaust port and bear on the head bolts which I screwed partway onto the studs, no go. Next I got my porta-power out and used the spreader jaws between the case boss at the front under the exhaust flange and the exhaust flange itself. I had to install the header pipe so the jaws would bear on the steel flange nut and not the aluminum flange. This didn't work at first but I finally got it to move a little and by using a steel wedge between the spreader jaws and a crowbar under the intake flange it finally came off. It was just stuck on the two front studs. The right side cylinder came right off and checking the stud bores it appeared that the exhaust side stud holes are slightly tighter than the intake. Hopefully I didn't do too much damage but the cylinder had to come off and I did my best. I am looking forward to continue with this project.

05c50 · Posted: Wed Jan 11, 2012 5:06 pm Post subject:

Wow! I guess the next step would have been Dynamite!! Laughing

.......Paul

MR.CHocko · Posted: Thu Jan 12, 2012 10:56 am Post subject:

I have been there done that with quite a few stuck cylinders. You should have contacted me, as I could have shown you some less invasive ways to get at them. One less invasive way is to use home heating oil.

05c50 · Posted: Thu Jan 12, 2012 4:25 pm Post subject:

OK, I'll bite........how does one loosen a stuck cylinder with home heating oil? Maybe home heating oil and fertilzer.......but I think dynamite would be easier. Laughing

..........Paul

Mat · Posted: Thu Jan 12, 2012 9:14 pm Post subject:

Yes, I would like to hear the home heating oil trick too as well as some of the less invasive ways. I did post a question on this asking for help in the forum though.

MR.CHocko · Posted: Sat Jan 14, 2012 2:19 am Post subject:

You take a stuck cylinder and you let it soak in home heating oil. Now this does take some time. But the heating oil will seep through the cracks, and the rust. A lot of the stuff that I do to free up stuck pistons,etc. does take a while. Trust me it does work, I have used it a few times to free up stuck pistons, carberutor slides,etc.

zjeppe · Posted: Sat Jan 14, 2012 3:10 am Post subject:

MR.CHocko · Posted: Sat Jan 14, 2012 3:17 pm Post subject:

Sorry but I didn't see the request for help. I lately do not have the time that I use to devote to this as I decided to go back and get re-educated on new skill. But feel free to drop me a PM anytime.

Mat · Posted: Sat Jan 14, 2012 10:25 pm Post subject:

Well, I did have the stud holes filled with a good quality penetrating oil for over a month and when I finally got the cylinder off the studs looked pretty dry to me. I did not try fuel oil/diesel fuel nor liquid wrench which is similar but I still have my doubts as it that would have penetrated any better. I have my doubts how well any penetrating oil works till you actually get the parts to move. Thanks for you input anyhow.

MR.CHocko · Posted: Sun Jan 15, 2012 4:05 am Post subject:

Trust me the heating oil does work. Do not use gasoline and/or diesal fuel. It takes a long time but it does work. I have freed up many stuck cylinders using that. But it does have to soak for a few months.

dorT500 · Posted: Thu Feb 02, 2012 2:19 pm Post subject:

Penetrating oil, vibrating palm sander and duct tape. Idea

Have I ever tried it? No, but I wouldn't put it past myself to try it. beammeup

Mat · Posted: Thu Feb 02, 2012 2:39 pm Post subject:

Well, I did try penetrating oil and an air chisel for vibration with no go but maybe I needed the duct tape.

dorT500 · Posted: Thu Feb 02, 2012 2:52 pm Post subject:

05c50 · Posted: Thu Feb 02, 2012 5:26 pm Post subject:

Bikegeezer · Posted: Fri Feb 03, 2012 7:06 am Post subject: