Can you remove pistons w/o pulling engine?

underPRESSURE_84

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Discussion starter · #1 · May 6, 2003

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Getting ready to rebuild head and was wondering about doing the pistons. With the head off and oil pan dropped, can I just take off the rod main bolts and just pull the piston up from the block? Sorry, I searched and couldn't find ANYTHING on the subject.

 

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WildJokers

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#2 · May 6, 2003

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yes you should be able to pull pistons with out pulling the motor out. its alot easier with the motor out, but it can be done.

 

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91RSlaser

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#3 · May 7, 2003

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yes it can be done....I recently did this to replace the piston rings and get the head rebuilt. i dont think its any easier with the motor out.

 

colonelfox

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#4 · May 7, 2003

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It's just as easy with it in. The problem comes if the cylinder needs to be over bored. You can hone it out with the block in, but you have to take extra precautions to make sure NO metal shavings, chips, etc drop into the crankcase.

 

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gogotsi

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#5 · May 14, 2003

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Yes it can be done, you pull the head and oilpan and you have access to everything you need, and yes you need to be very careful when you hone your cylinders.

 

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Marq4g63

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#6 · Jul 28, 2003

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when you have hardened aluminum chucks on your wall.. you can just hone that one cylinder wall? and you wont have to over bore all the cylinders?

im doing this now, let me know

 

James92TSi

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#7 · Jul 28, 2003

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Honing is just to put a new crosshatch on an otherwise perfectly fine cylinder.

You have mechanical damage to the cylinder, so it needs to be bored.

 

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91eclipsegsx16boy

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#8 · Jul 28, 2003

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You can hone the block in the car with a drill, and cover the crank with a blanket and clean the crap outta it before putting everything back together.

-aaron

 

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Marq4g63

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#9 · Jul 29, 2003

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thanks aaron.. the walls looks about perfectly fine and smooth .. except some slight sludges that needs to be sanded/honed off to smooth.

so i guess i wont have to bore.. anyone else dont agree or agree?

 

K_Mans_TSI

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#10 · Aug 1, 2003

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cylinder walls shoulndt' be perfectly smooth because then oil is not sticking to the sides of the walls....if they are TOO smooth i think over time with oil not staying to them they will wear to an oval shape, which they will need bored,.