ejin4499 Posted January 6, 2011 Share Posted January 6, 2011 I got a engine from a junkyard that I have been tearing down to rebuild and I think that one of the heads might be warped. is there a test that I can try other than sending it in. I know sending it would be the most accurate way but I was hoping for a "if it does this than its probably but still might be not warped" If that makes any sense. thanks Link to comment Share on other sites More sharing options...
nunya Posted January 6, 2011 Share Posted January 6, 2011 Acurate strait edge and a feeler gauge Link to comment Share on other sites More sharing options...
XSrcing Posted January 6, 2011 Share Posted January 6, 2011 Yup, gotta get a machinists straight edge and some feeler gauges. Link to comment Share on other sites More sharing options...
MY1PATH Posted January 6, 2011 Share Posted January 6, 2011 x3 Check for flatness lengthwise, width and diagonally between stud holes. Link to comment Share on other sites More sharing options...
sewebster Posted January 6, 2011 Share Posted January 6, 2011 I've found that a cheapish aluminum level can sometimes be quite straight. Not as good as a proper square, but waaay cheaper. If you try this and find that your head is flat, then it probably is. If you find that the head seems warped then you might not be able to tell if it's the head or the level. Link to comment Share on other sites More sharing options...
Precise1 Posted January 7, 2011 Share Posted January 7, 2011 A stout piece of glass evenly supported should be quite flat (I have a small granite slab) but a proper straight edge will suffice as well. Use them in conjunction with light and feeler gauges. B Link to comment Share on other sites More sharing options...
ejin4499 Posted January 7, 2011 Author Share Posted January 7, 2011 Ok so I cleaned both the aluminum head and the shortblock surface. I ran a metal ruler edge across the surface of the heads and I couldn't see the light or put a peice of paper between them. when I put the head on the block they looked like they mated very well. My only concern is that when the head is on the block there is a tiny amount of wobble between them. Not enough to see but enough that I can feel it. This is all of course without any gasket in place. Link to comment Share on other sites More sharing options...
Precise1 Posted January 7, 2011 Share Posted January 7, 2011 It sounds like you are ok. Paper is .003-.004" thick and the spec can't be that tight. If there is the slightest burr, rolled edge, grit or bend you would feel a wobble but the gasket will negate it. I am assuming the the ruler you used was dead straight... B Link to comment Share on other sites More sharing options...
ejin4499 Posted January 7, 2011 Author Share Posted January 7, 2011 It sounds like you are ok. Paper is .003-.004" thick and the spec can't be that tight. If there is the slightest burr, rolled edge, grit or bend you would feel a wobble but the gasket will negate it. I am assuming the the ruler you used was dead straight... B unless the counter my workbench the other head and the engine block are all warped exactly the same way at 4 different angles it was pretty straight Link to comment Share on other sites More sharing options...
Channel595 Posted January 11, 2011 Share Posted January 11, 2011 just sand it flat with a block sander and 800 and it will be fine, i do this every time i do a head gasket and never had a problem Link to comment Share on other sites More sharing options...
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