4G64 - a hole in the oil gallery, normal or abnormal?

[tak]

Hi,
I'm working on balance shaft elimination (partly because the silence shaft drive gear has caused some troubles since the last rebuild). When I took the front cover off, I came across this hole in the oil gallery (shown with a red arrow below).

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This gallery is located behind the front cover on the 4G64 block as indicated by the red circle below:

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Could anybody tell me if this is normal or abnormal? If abnormal, should I try to repair it with JB Weld or something? Thank you for your advice!

 

[19Eclipse90]

Abnormal. .......................................................... Abbie Normal

My first impression is that it wouldn't cause any issues at all. If I let my mind wander, I can see how it could potentially cause problems. Personally, I would try to fix it, just for the peace of mind.

 

[bryanwheat]

That is not an oil passage. The 2 longer ones are, that is not. Nothing bad will ever happen from that.

 

[92AWDHX40]

Just had my block apart didn't see that before.

 

[tak]

Thanks for your replies! @bryanwheat, that sounds reassuring. Do you know what that passage does/goes to? On the front cover side, it seems like those two "compartments" separated that seemingly breached wall are connected together. So I was thinking maybe I don't need to worry about it. But I wanted to check with the knowledgeable crowd to see if anyone has seen this before or know something about it.

 

[dtdeg]

I might think thats just an leak down passage. If its an high pressure passage i would'nt let olie leak like that. jafromobile on youtube has an video about the oil passages, if i'm remember correct he explain those passages. Look it up, its on the crankwalk examination video.

 

[BogusSVO]

Your block is fine, it is just a slight casting flaw.

If you place the front case gasket on there you will see it covers both of those areas.

http://www.dsmtuners.com/forums/articles-engine-fuel/452546-4g63-block-oiling-mod.html#post153148047

The long galleys are the only ones you need to be concerned about.