7.3 head checking -- what's OK?
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7.3 head checking -- what's OK?
Alright, so I need to throw together a decent engine for my truck, in about a month.
I've got a 1993 donor engine, which looks mechanically sound... though it was filthy.
In the process of cleaning it, I took the heads down to the car wash and pressure-washed the crap out of them. I noticed that spraying water into the intake or exhaust ports had water streaming out around the valves... obviously not a good thing!
I'm not sure what's wrong yet -- I'll have to get a valve spring compressor this weekend to check it out.
I've also got two other sets of heads I can play with -- both from 1988's, though I'm not sure if either of them are going to be better.
I don't really have the money to buy all the right parts, so it's going to be a matter of picking the best of what I have, putting it together and hoping for the best.
So, what should I look for, especially in the valve area? What's a quick/cheap test I can do, and what can I quickly fix?
edit:
Also, what about valve springs? I'm wondering if my problems are due to weak/need-shimming valve springs? Any thoughts?
I've got a 1993 donor engine, which looks mechanically sound... though it was filthy.
In the process of cleaning it, I took the heads down to the car wash and pressure-washed the crap out of them. I noticed that spraying water into the intake or exhaust ports had water streaming out around the valves... obviously not a good thing!
I'm not sure what's wrong yet -- I'll have to get a valve spring compressor this weekend to check it out.
I've also got two other sets of heads I can play with -- both from 1988's, though I'm not sure if either of them are going to be better.
I don't really have the money to buy all the right parts, so it's going to be a matter of picking the best of what I have, putting it together and hoping for the best.
So, what should I look for, especially in the valve area? What's a quick/cheap test I can do, and what can I quickly fix?
edit:
Also, what about valve springs? I'm wondering if my problems are due to weak/need-shimming valve springs? Any thoughts?
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