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cracked head? (not mine - the subies)


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How can I tell if my head is cracked? Well duh, besides the obvious...

 

I pulled off my pass side head (I know that was the problem side for sure) and all I can see is a very minor crack between the valves on one cylinder. I'm talkin really minor here too...

I did the HG on this side about 5 months ago, but when I was pulling it off again, it seemed like the head bolts might have loosened off some, so I'm thinking maybe it is just a HG problem.

 

So I guess my question is - can head cracks that cause real problems (coolant usage and steam out the tailpipe) be internal and not visible on normal inspection, or is this most likely just a HG prob that would have been fixed by re-torquing the head bolts.

 

I'm hoping for the second, but if not I'm off to the JY to pull a head tomorrow...

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You have to pull the valves to see if the cracks extend into the ports.

 

What kind of HG's did you use? Anything but SOA tends to be problematic.

 

I'm a cheapass - used felpro.

Guess I'll pull the valves and take a good look.

 

You're always good for a quick response Snowman - cheers:drunk:

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I just pulled the head off my brat, it has a slight crack in the same place as yours. It was causing major problems, lots of white smoke. Take it to a maching shop, they can pressure test it and tell for sure if it's cracked. BTW, i'm looking for a passenger side head for an ea71

 

 

 

How can I tell if my head is cracked? Well duh, besides the obvious...

 

I pulled off my pass side head (I know that was the problem side for sure) and all I can see is a very minor crack between the valves on one cylinder. I'm talkin really minor here too...

I did the HG on this side about 5 months ago, but when I was pulling it off again, it seemed like the head bolts might have loosened off some, so I'm thinking maybe it is just a HG problem.

 

So I guess my question is - can head cracks that cause real problems (coolant usage and steam out the tailpipe) be internal and not visible on normal inspection, or is this most likely just a HG prob that would have been fixed by re-torquing the head bolts.

 

I'm hoping for the second, but if not I'm off to the JY to pull a head tomorrow...

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Hey guy I'll probly have a couple of sets of heads around after I swap motors and scrap one of these gl-10 sedans so let me know if you need one. I've got a N/A set and turbo set [you need N/A right?]... pay for the trip on the bus and they're yours.

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