How Common Are Non-IC Head Cracks?

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01-25-2007, 11:39 PM

#16

farmer0_1

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heck thats cheaper than what i will have into rebuilding and repairing my three cylinder john deere. i think it will run some where in the $550 range

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01-26-2007, 08:46 AM

#17

Micaiahfied

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thanks for the link! i had no idea they could be had that cheap!

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01-26-2007, 10:07 AM

#18

JD730

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Quote:

Originally Posted by zinkie

its funny you just posted this I just came into this problem. I think my head cracked or blew the head-gasket. I noticed i didn't have any heat. then i saw air bubbling in the overflow tank. theirs no steam out the exhaust, and the oil shows no signs of water. so its parked for now. i was talking to my diesel teacher at school he says it sounds like a cracked head, and that all of the 12 valves were prone to cracking the head. he said i should put a 24 valve head on it. any ideas before i pull the head?

I'd would be wary of anything that comes out of that guys mouth from now on. Sometimes a simple I'm not sure is better than trying to BS your way through. Probably a blown gasket, I have one that did something similar to that, I got lucky, I retorqued the head and it stopped leaking.

Quote:

Originally Posted by wannadiesel

He's an idiot. You can't just drop a 24 valve head on a 12 valve. Well, OK, you can just drop one on, but it won't work.

Sounds like a blown head gasket to me. You can burn out the fire ring and not get water and oil mixed up.

I second that, he's also got it backwards, 24 valve heads are much more prone to cracking than 12 valve heads, I have one with cracks through 5 of the exhaust seats and only 82,000 miles on it, valves and guides worn out, I could go on, but I'm not going to.