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Discussion Starter · #1 ·
Hi guys. Just discovered today my piston and cylinder wall (#2) is chipped and i dont really know what to do. My plan was to change valve springs and stuff bc i heard valve ticking and when i took off the head this is what i saw. Head, gasket and valves looks fine. The chip in the wall is mabye 1-2 mm deep and i dont know where to go from here. I heard its possible to bore out the walls but i dont know... Please help...
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JDM 4th Gen Prelude 2.2 Vtec Turbo
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Ouch, I think your options are to sleeve it or replace the block.

The bores are 87mm normally, you can bore out to 89mm, but that's pushing it and you can't use forged pistons with an unsleeved block anyway.
 

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Discussion Starter · #4 ·
Ouch, I think your options are to sleeve it or replace the block.

The bores are 87mm normally, you can bore out to 89mm, but that's pushing it and you can't use forged pistons with an unsleeved block anyway.
Damn thats what i was afraid of. As i live in Norway there are about 30 preludes left in the country i would have to get a new one from another country...
 

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Discussion Starter · #5 ·
thats doesnt look good....engine from wrecker ?.....
Nope bought it used in october last year but ive almost not driven it since then bc of problems. Just noticed it last when i installed skunk2 intake manifold when i revved it high it started ticking, lost power and got blue smoke
 

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Opinionated Bastard
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Plan on buying another engine from an importer. You can't bore these blocks the same as an iron sleeved unit due to the fiber reinforced cylinder walls; it takes a knowledgeable machinist to do it right, and there are maybe a handful (even in the United States) I would entrust that job to. Even then, it's expensive.

Sorry to hear of your unfortunate luck.
 

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Hi guys. Just discovered today my piston and cylinder wall (#2) is chipped and i dont really know what to do. My plan was to change valve springs and stuff bc i heard valve ticking and when i took off the head this is what i saw. Head, gasket and valves looks fine. The chip in the wall is mabye 1-2 mm deep and i dont know where to go from here. I heard its possible to bore out the walls but i dont know... Please help... View attachment 31109
View attachment 31108
Old ass car, rebuilding motor before you start putting on performance parts...or even driving it really, can save you a lot of cash and heartache.
Being that you are from a region with little options for used parts, that is doubly important.
 
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