overheating
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New User
Joined: Jan 2004
Posts: 15
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From: vancouver island
overheating
i overheated my 2.8 and ended up cracking the heads now iam thinking if the heads cracked maybe just maybe could the block allso be cracked...?Or is that a uncommon thing to happen.I dont want to put the new heads back on only to find out the block's cracked and there's water still getting in my oil you know what i mean.So what do you all think could the block allso be cracked or is this very unlikely.The day i cracked the heads and overheated the engine it was like -10 and while it was sitting at home broken down in my driveway during the cold spell one of the frost plugs on the lower block poped out now that could be a good thing but with the overheating then having it get cold and having what water was in the block freeze and having a frost plug fall out iam a little worried about the block.
Junior User
Joined: Dec 2003
Posts: 57
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sounds like the block was froze too,but the frost plug saved 'er
maybe.
the frost plug is the weakest piont in a block and is desiged to go first, as the frozen liqiud expands it will expand out the frost plug
but once it reaches a certain freeze point. frost plug wont do any good, it'll just expand and crack the block.(it has to go some where) your guess is as good as mine, wether or not the blocks cracked , as far as the heads' their probaly toasted
maybe.
the frost plug is the weakest piont in a block and is desiged to go first, as the frozen liqiud expands it will expand out the frost plug
but once it reaches a certain freeze point. frost plug wont do any good, it'll just expand and crack the block.(it has to go some where) your guess is as good as mine, wether or not the blocks cracked , as far as the heads' their probaly toasted
Thread Starter
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New User
Joined: Jan 2004
Posts: 15
Likes: 0
From: vancouver island
ya the heads where cracked i had them manafluxed they where cracked between the valves on both heads that costed me $30 to get that done.I just bought a nother set of used heads and just took them in to get magnafluxed, but i just found a running 2.8 engine at a wrecking yard it has far less miles on it than my 2.8 so iam going too buy that and throw that in instead.maybe i will keep those heads as spear set.
