Pistons are stuck

85ragtop

BTW, I like dudes.

10 Year Member

Nov 29, 1999

823

475

123

NC

Sep 20, 2006

#1

• Sep 20, 2006

• #1

I have an engine as given to me. I was told that it was kept in a barn away from rain. Well I go to take the heads off (which I am not going to use) and the freakin cylinder walls are rusted badly. So I cleaned them up as best I could, took of the rod caps and tried to tap the pistons out. The stupid things won’t move. I have done this several times in the past and never have I had this much trouble. Can someone help me with this?

 

blownlxvert

New Member

Nov 3, 2005

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endicott n.y.

Sep 20, 2006

#2

• Sep 20, 2006

• #2

spray a little rust penetrant down the cylinder and let it do its thing.

 

RYC CUKR

Founding Member

May 19, 2002

1,437

1

38

Orlando

Sep 20, 2006

#3

• Sep 20, 2006

• #3

put some marvel mystery oil in the cylinders and let it set for a bit and see if that frees them up.

 

srothfuss

Last night I stabbed the same guy 7 times in a row

Oct 17, 2004

1,796

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Woodward Ave.

Sep 20, 2006

#4

• Sep 20, 2006

• #4

Either penitrating oil or regular oil liberally applied to the tops (and bottom) of the pistons.

You'll need to let the oil soak the rings for about 1 day and then rotate the motor and hit the bottom of the pistons with an oil can (if possible)

 

85ragtop

BTW, I like dudes.

10 Year Member

Nov 29, 1999

823

475

123

NC

Sep 20, 2006

#5

• Sep 20, 2006

• #5

Thanks you guy. I put some PB blaster in there last night. I see if it worked.

 

8

86bluecobra

Advanced Member

Dec 20, 2004

4,265

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B.C. Canada

Sep 20, 2006

#6

• Sep 20, 2006

• #6

ATF is also a good oil to try to free up pistons.

 

5ive.oh

Founding Member

Feb 23, 2001

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Rocky Mountain House, AB

Sep 20, 2006

#7

• Sep 20, 2006

• #7

Red vinegar. Sounds strange but I used it on an old dirt bike engine.

 

Henceforward

The Avatar Master

Founding Member

Jul 17, 2001

485

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Sep 20, 2006

#8

• Sep 20, 2006

• #8

85ragtop said:

Thanks you guys. I put some PB blaster in there last night. I'll see if it worked.

Click to expand...

I would have used try PB blaster too.

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,359

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Ohio

Sep 20, 2006

#9

• Sep 20, 2006

• #9

That Seafoam Stuff may work too.

 

dastang2

Active Member

Dec 11, 2003

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tx

Sep 20, 2006

#10

• Sep 20, 2006

• #10

somebody said it already, automatic tranny fluid works great on this. i once locked a motor up while showing it to a potential buyer. i put a new dizzy in it and a jammed it in there without making sure the oil pump rod lined up. i reved it a few times and it quickly locked up. poured that in the cylinders and it sat overnight and worked.