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Guest Message by DevFuse
 

Photo
- - - - -

cracks and crosshatching /rebuild progress


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9 replies to this topic

#1 gravelRX

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Posted 25 January 2004 - 09:59 PM

What are your thoughts about these pictures?

Posted Image

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How about those cracks, Eh? gen 3 too!

Jay

#2 gravelRX

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Posted 25 January 2004 - 10:29 PM

I just took the heads off tonight. Haven't cleaned them or anything. the cylinder bores on all the pistons looks good.

I'm concerned about the cracks though.

Jay

#3 GLCraig

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Posted 25 January 2004 - 10:34 PM

Don’t worrie about those cracks; it's real common to see those on an EA82. There's also a service bulletin that addresses the crack between the valves. Here’s a pdf copy.

http://home.comcast....c.moe/heads.pdf

#4 gravelRX

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Posted 25 January 2004 - 11:11 PM

Thanks for the pdf.

Jay

#5 Nug

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Posted 26 January 2004 - 01:04 AM

Crosshatch looks good too.

#6 electryc_monk

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Posted 26 January 2004 - 09:49 AM

clean it up and prep it for return to service dude!

#7 toybuilder

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Posted 26 January 2004 - 10:08 AM

Those cracks look fine, I've used worse. Gen 3 heads really only addressed the issue of cracking where the exhaust runners come together. If you are putting new rings in, make sure you give it a fresh hone. Even though you can still see the original cross hatch, it won't have enough bite to properly seat the rings.

Good luck.

#8 RedLance

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Posted 20 March 2004 - 05:25 AM

Out of curiosity, how many miles were on this block? My EA82T had 167,000 on it, and still had those cross hatching marks...

#9 RedLance

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Posted 20 March 2004 - 05:43 AM

Out of curiosity, how many miles were on this block? My EA82T had 167,000 on it, and still had those cross hatching marks...

#10 gravelRX

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Posted 21 March 2004 - 02:00 AM

or around about that.

I didn't know what to expect, but the cylinders walls being what they are, I was pleasantly surprised.
Makes me feel better about rebuilding the top end.

Jay




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