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Old 01-29-2009, 08:09 PM
CamaroX
 
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Cracked Block or Heads.. most cost effective way to go

Well, about a year ago (last time I actually drove my car) we found antifreeze in the oil pan. The motor is a 302 chevy, double hump heads, its about a 15 year old motor that sat for 10-12years. Only has 8-8.5k miles on it.

We had already torn it down and put it back together again, changed all the gaskets and such, and bought a new edelbrock intake. The heads had been cut over a decade before so we purchased a thicker headgasket in hopes it was just a blown head gasket.

Ran the motor for a while and once again found antifreeze in the oil, we recently pulled the motor.

I am working on a pretty tight budget now, the car is in primer basically no interior but was running and driving. I'd like to get the motor back together as cheap as possible, but do not know where to start first.

I'd just like suggestions, the motor is halfway torn apart, no visible cracks. There was 1 rust stain under the intake in the valley. The car was not burning antifreeze or smoking at all. There is a local machine shop but what should we bring them first, heads or the block?) If the block is shot what is my cheapest alternative without replacing the pistons and such. (Aka I need to do this cheap).

I'd just like to be able to drive this thing around this summer and not put myself in the poor house.

Thanks ahead of time (and I can provide pictures and more info if need be).

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Old 01-30-2009, 05:45 AM
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The best way to find a crack is to have the heads and/or the block magnafluxed. That can be done by any good machine shop that does motors.
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Old 01-30-2009, 12:08 PM
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IF suspect about it freezing, than a the lifter valley is a common place to have cracks. So is between the webs. Pretty far up though. Not a lot of water down there.
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Old 01-30-2009, 02:42 PM
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Ayuh,...

We use Air Pressure to find coolant to oil leaks on Marine motors by blocking off the cooling jacket,+ plumbing in 15psi of air,...
Then Listen....
Follow the sound of leaking Air,+ you've found the Problem....

Unfortunately,... It would be somewhat more complicated with the motor partially torn down...
Still Doable though...
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Old 01-30-2009, 03:07 PM
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if the heads are off id get them mag'ed its cheap
then go from there
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Old 01-30-2009, 05:43 PM
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Thanks for all the responses, I think we will have the heads magnafluxed first and see what happens. We pressure tested the motor all together and water was slowly tricking into the oil pan so there is a leak someplace. I'll post up what happens with the machine shop when we go. Any other suggestions are welcome though. Thanks again!
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