LT1-LT4 Modifications 1993-97 Gen II Small Block V8

cant crack bleeder screws

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Old Dec 22, 2007 | 04:11 PM
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Default cant crack bleeder screws

i tried a wrench, WD40, penetrating oil, etc. and cant for the life of me break loose the screws. anyone have tips so i dont snap them? these are the coolant bleeders BTW

Last edited by Revelation Z28; Dec 22, 2007 at 04:23 PM.
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Old Dec 22, 2007 | 04:20 PM
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You must be doing something wrong, all you should need is a screwdriver.

If they are rusted shut or something, you might try some heat.


Last edited by infinitebird; Dec 22, 2007 at 04:25 PM.
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Old Dec 22, 2007 | 04:22 PM
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Originally Posted by infinitebird
You must be doing something wrong, you use a screwdriver, not a wrench.
screwdriver stripped the slit
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Old Dec 22, 2007 | 04:26 PM
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wow, that's interesting.

Like I said maybe try some heat.

I've never had that problem, sounds like someone tightened them way too much.
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Old Dec 22, 2007 | 04:31 PM
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actually it looked like some corrosion where they thread in. but im surprised the penetrating oil never got em. it worked on my header bolts

first try was the screwdrivers, then the wrench around the brass hex.
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Old Dec 22, 2007 | 09:48 PM
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dont use the wrench around the hex.. use it on the top above the hex.. thats what screws on and off.. the other one does too but what are you trying to do? bleed the system?
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Old Dec 22, 2007 | 10:57 PM
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They're brass from my understanding, so they can't rust thankfully. BUT The coolant can really play hell with the brass and seize them up :\ I would usually say use heat as well, but being on rubber lines, can't see that being too good of an idea
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Old Dec 25, 2007 | 04:36 AM
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Vice grip and a wrench to hold the hex.

Then buy new ones from GM if available... might have to buy the whole assemblies to get 'em.
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