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View Full Version : k20a3 disscovery


monjarassi
07-04-2013, 09:07 PM
I just got through pulling out a motor that is or should i say was in the process of getting built but due to the discovery of the sleeve, it wont no more.

I kinda want to have an open discussion on what we found and what could've caused the issue to the sleeve. And is this fixable.

This motor came out of a base rsx with an auto tranny completely stock!!

http://farm6.staticflickr.com/5523/9214050622_a3f4e35177_b.jpg

http://farm6.staticflickr.com/5470/9211271055_186525932b_b.jpg

and a shot of the new cup holder for the up coming parties and get togethers!!

http://farm8.staticflickr.com/7451/9214052842_e925857bc3_b.jpg
USAF EP3
07-04-2013, 11:29 PM
Incorrect coolant usage?
Powers
07-05-2013, 09:54 PM
Is it possible abad head gasket could cause this over time? I'd sleeve the block. Might as well go big now.
USAF EP3
07-05-2013, 09:58 PM
Is it possible abad head gasket could cause this over time? I'd sleeve the block. Might as well go big now.

Sleeve? On an A3 block? Hardly worth it....

Make a coffee table out of it LOL! My friend did that with an old Chevy 454 shortblock that throw a rod. Always makes a great conversation piece.
monjarassi
07-05-2013, 11:12 PM
Yea so far on the other 3 sites I posted this everybody is calling the coolant being the cause of the rot.

So becarefull my ephatch brothas, always use the Honda stuff.
Cheep3
07-06-2013, 12:13 AM
Dang! Not sure if my coolant has ever been completely changed? :shrug:
Powers
07-06-2013, 03:51 PM
What's wrong with sleeves on an a3 block if your going to build it? Isn't the a3 block the same as the a2 minus the oil squirters? And people plug those anyway to keep the oil pressure up.

I know the a3 has a different rotating assembly.
USAF EP3
07-06-2013, 09:50 PM
What's wrong with sleeves on an a3 block if your going to build it? Isn't the a3 block the same as the a2 minus the oil squirters? And people plug those anyway to keep the oil pressure up.

I know the a3 has a different rotating assembly.

That's the point. You'd have to source everything from a K20A2/Z1/Z3 minus the bare block to make it useable. Odds are you're going to find those together as a shortblock and by that time you might as well work that block and not the A3.
Powers
07-07-2013, 02:47 PM
That's the point. You'd have to source everything from a K20A2/Z1/Z3 minus the bare block to make it useable. Odds are you're going to find those together as a shortblock and by that time you might as well work that block and not the A3.

Well if your going to to get something like weisco pistons and some hbeam rods to build it it would seem worth it to me atleast.