rebuilding the motor and noticed some hairline cracks. i have 4 going through the holes where the oil squirters bolt in. anyone see this before?

 

Are you sure its not just casting flash?

 

The casting marks do look like cracks, made me wonder when I first saw them.

 

no im pretty sure its not the casting. ill take pics and post them soon

 

and whats all this peeling/cracking below?

 

thats all from the casting of the block. you should be good to go.

just to double check, cut a small bit off the top of the "crack". im sure tis just flash or a cosmetic defect.

 

Looks like flash to me too. it is somewhat tricky to tell the difference. The first time you see it its like, holy crap my block is shot! But once you see some cracks vs. flash you will be able to readily tell the difference between the two.

 

what is flash? it really looks cracked by the squirters.

 

Take a fine grit sandpaper and sand it flush by moving across (90 degrees to the line). If it disappears, it's just a casting flash. Don't sand in line with it or you'll blend a crack in if it's really a crack. It is common for these blocks have casting marks in that area.

 

ok but what is this flash your all talking about? just another word for small cracks in words of the honda-techers?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by the.hamburglar &raquo;</TD></TR><TR><TD CLASS="quote">ok but what is this flash your all talking about? just another word for small cracks in words of the honda-techers?</TD></TR></TABLE>

Its a casting mark from when the block gets cast. Not a crack.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bosco500 &raquo;</TD></TR><TR><TD CLASS="quote">

Its a casting mark from when the block gets cast. Not a crack.</TD></TR></TABLE>

ok look closer is obviously not a casting mark. i can run my nail on the crack and it will catch.

 

those are casting flaws, not cracks
If it would be a crack it would go all the way up to the neck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">those are casting flaws, not cracks
If it would be a crack it would go all the way up to the neck.</TD></TR></TABLE>

true, so i have nothing to worry about?

 

did you try sanding it like everyone is telling you to?

 

no i put my fingernail on there and realized id be sanding for a while

 

Better to be sanding for a while to be sure than rebuilding for a long while because you didnt check.

 

i found the same cracks on my tsx block but after I sent it to ERL they told me not to worry about it.. they are from the casting...

I would not suggest you sand it.. bad idea.