 How do I remove stubborn pistons / cylinders?, Success!! |
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| rwilner |
 May 18 2012, 05:18 AM
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#1
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No Ghosts in the Machine  Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States  |
So with some less-than-gentle persuasion with a rubber mallet, I got the heads off my 1.7 core.
This engine didn't turn over and it's obvious why...the cylinders have rust on the inside and the pistons will not budge. I need to get the Ps and Cs off and I don't care if I damage them as they're toast anyway, but I need to keep the case pristine as this is what I'll be using for my rebuild (really it's why I bought the core). So, any tricks to free up and remove the pistons and cylinders? More persuasion with a rubber mallet? Gallons of PB blaster? Mild explosive? |
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| moparrob |
May 21 2012, 09:24 AM
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#2
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Senior Member Group: Members Posts: 646 Joined: 27-April 10 From: Los Angeles Member No.: 11,663 Region Association: None |
Just curious- would a cutting torch work?
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| ArtechnikA |
May 21 2012, 09:31 AM
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#3
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(moparrob @ May 21 2012, 11:24 AM)  Just curious- would a cutting torch work? Hmmm - molten aluminum, burning steel, excess of oxygen. Check out 'Thermite reaction' and then decide if this is a good idea ;-) I think I'd sooner try to split the cylinders with a rotary cutoff disk... |
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| rwilner |
May 21 2012, 10:03 AM
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#4
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
QUOTE(ArtechnikA @ May 21 2012, 11:31 AM) I think I'd sooner try to split the cylinders with a rotary cutoff disk... Not sure this would net me a lot because they'd still be rust-bonded to the pistons. Plus, it would be pretty tough to cut through the underside of the cylinder without damaging the case. I think i'll keep trying to beat the piston into the cylinder after another PB / ATF / acetone soaking. Good thing I am not in a rush. |
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Posts in this topic
rwilner How do I remove stubborn pistons / cylinders? May 18 2012, 05:18 AM
ArtechnikA Penetrants, heat, patience.
If CHT is in the 350ยบ... May 18 2012, 05:59 AM hot_shoe914 Rubber mallet. :smash: May 18 2012, 06:32 AM RobW Wire brush and pick at the base too. Penetrating o... May 18 2012, 07:46 AM Rex-n-effect Mine had the same issue when i got it. They had be... May 18 2012, 07:56 AM
RobW
Mine had the same issue when i got it. They had b... May 18 2012, 08:10 AM rwilner holy crap.
Looks like I have my work cut out for ... May 18 2012, 08:37 AM Cupomeat It usually isn't that bad, but be careful with... May 18 2012, 08:54 AM injunmort turn one side up, fill cylinder with atf and aceto... May 18 2012, 08:57 AM rwilner
turn one side up, fill cylinder with atf and acet... May 18 2012, 10:32 AM injunmort i dont think i said bang on it with the hammer, i ... May 18 2012, 01:11 PM rwilner
i dont think i said bang on it with the hammer, i... May 18 2012, 01:21 PM Qarl Great video here...
http://www.ephotomotion.com/9... May 18 2012, 01:25 PM r_towle Bring it over here on Saturday.
We have the tools ... May 18 2012, 09:26 PM rwilner
Bring it over here on Saturday.
We have the tools... May 19 2012, 07:35 AM tomeric914 Sledgehammer and a 2x4. Look at my build thread t... May 19 2012, 09:51 PM Cupomeat Confucious says, Yes, even the worst looking situa... May 19 2012, 10:28 PM euro911 Just be really careful when heating up any chemica... May 20 2012, 01:20 AM rwilner Ok well, I did a lot of beating with a hammer, hea... May 20 2012, 07:15 PM ArtechnikA
I think I'd sooner try to split the cylinder... May 21 2012, 10:30 AM Rex-n-effect I feel your pain! Cupomeat's picture looks... May 21 2012, 10:15 AM LotusJoe
So with some less-than-gentle persuasion with a r... May 21 2012, 10:54 AM jcambo7
So with some less-than-gentle persuasion with a ... May 21 2012, 11:18 AM ArtechnikA
It's amazing we even drink that stuff too... ... May 21 2012, 11:26 AM r_towle You are already trashing the pistons, get a hole s... May 21 2012, 08:05 PM rwilner the coke trick worked! :trophy:
Well, coke, p... May 23 2012, 06:26 PM rwilner the coke trick worked! :trophy:
Well, coke, p... May 23 2012, 06:26 PM euro911 Congrats.
I guess the old saying, "things go... May 23 2012, 07:08 PM rwilner If this failed, my next step was to ask my phd che... May 24 2012, 06:05 AM |
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