what would cause this? scary pics inside!

[kpoage20]

Pulled the head off my 92 laser yesterday. Previous owner thought it had a blown headgasket.

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I have a port and polished head that I'm going to throw on, I'm just trying to figure out how to prevent this from happing again.

 

[TalonJohn94]

What is the problem.

 

[Rsawd95dsm]

What is the problem.

Looks like theres a hole in between the 2 springs

 

[Bud92gsx]

What is the problem.

Did you not notice the large hole between the springs?

WOW!

 

[BogusSVO]

That should be there, IF it is on the exhaust side of the head between cyl#2 and #3

I think he has some odd block swap that is not lined up properly.

 

[Bud92gsx]

I've never noticed a large hole.But I don't look under my VC very often.

 

[BogusSVO]

Here you go....

All 6 heads I have in the shop have it....

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It is an oil drain back hole....

 

[TJCTalon]

Not sure what the problem is either. Looks really clean

 

[jjw205]

Wow. Is everyone joking, or do you all really not know that is an oil drain hole?

Looks like it has ARP head studs....


edit: NVM, looks like two others beat me to it while I was typing!

 

[BogusSVO]

Not sure what the problem is either. Looks really clean

That looks like the block deck to me "under" the hole.

Now if you look close, you see 2 diffrent holes, a roundish looking one and a squarish one.

I would guess one is for oil return to the oil pan, and the other is a water port....


Top view of a 7 bolt 4g

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The return in the head should line up with the round oil return in the block.

Op.. doubt your ported head and a HG will fix this. You need to find out what block you have.

 

[TJCTalon]

Just looks like oil and is reflecting light. I guess there shouldnt be oil pooled there thats the only thing that looks wrong to me.

 

[kpoage20]

I saw the oil drain in the other side, this is a lot more jagged around the hole than the oil drain. The only thing that makes me wonder is what caused this instead of the valves to crack first.

 

[bryanwheat]

I saw the oil drain in the other side, this is a lot more jagged around the hole than the oil drain. The only thing that makes me wonder is what caused this instead of the valves to crack first.

Do you understand that what you are seeing is just casting material. Nothing is cracked or damaged. The oil is obviously draining or else that hole would be full of oil.

 

[Colt4G63 also]

So what's the rectangular hole in the block?

What kind of block are you running? There should be markings on it.

Can you zoom out with that photo a little too?

 

[bryanwheat]

So what's the rectangular hole in the block?

What kind of block are you running? There should be markings on it.

Can you zoom out with that photo a little too?

Are you talking about the little black piece at the bottom left corner of the oil drain? From my monitor it looks like a piece of debris sitting on top of the casting. I can actually see the reflection of the deck surface thru what ever is sitting there, so it looks transparent.

 

[Colt4G63 also]

Oh, well if this isn't another opening in the block, then I don't see the problem either.

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It does seem like it may be a shadow or something now.

 

[bryanwheat]

Oh, well if this isn't another opening in the block, then I don't see the problem either.

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It looks like a transparent piece of black plastic. If you look closely you can see the outline of the casting behind it.

 

[kpoage20]

It's a 6 bolt motor. From what I can tell there are suppost to be 3 oil drain backs in the head. This one is between the 3rd and 4th cylinder. The 3rd cylinder exhaust port is a lot more black than the others, not from carbon but from oil. If it is suppost to be there than that would be great bc I could sell the head haha. But if it is suppost to be there, don't judge me, I'm still learning about these motors

Sorry, ment 2nd and 3rd, not 4th and 3rd

 

[BogusSVO]

Oh, well if this isn't another opening in the block, then I don't see the problem either.

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It does seem like it may be a shadow or something now.

I agree, that hole or spot or whatever it is needs to be checked out.



OP post a pic of the block deck.

 

[kpoage20]

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This is where the hole in the head sat.

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[kpoage20]

Bump for help!!

 

[bryanwheat]

What do you want help with, the perfectly normal oil drain?

 

[Fast-Orange]

I fail to see any problem, besides the mystery peice of black but your the only one who can really see it. So what was it? The deck looks good, the HG lines up and your oil drain back looks ok. Yes the jagged metal is from casting every cast made engine looks the same way.

 

[TheEagle]

yea with everything here, it just looks like the oil drain.

If it was a hole that lead to the cylinder or somewhere it wasn't meant to, the car would tell you (and it would be easy to see).

So I don't see the big deal. What were you having issues with if any?

Anyway, you stated you have another head. I'd just throw it on 'N go cause nothing seems otta place.

 

[dsm'r sk1mp]

I honestly see nothing wrong. Actually there really is nothing wrong. you had a bad head gasket most likely. Every last one of my six bolt heads have the same looking holes. check valves, springs, seats everything, and slap it back on your good man. Thread is solved.