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Re: Freeze Plugs- what do i need to know ? [message #351457 is a reply to message #351443] Mon, 20 January 2020 11:59 Go to previous messageGo to previous message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
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Senior Member
As others have said...replace them all if you can. Most of the time they are under the exhaust manifold area on the side of the block and hard to get direct access too.

If you can get at them replacement it is fairly easy....grab a big flat blade screw driver, place it in the lower bevel area of the plug [were the flat part starts to climb up the side of the plug] and give the screw driver a good whack with the hammer....the goal here is to spin the plug sideways in the bore and NOT drive it into the block....once spun you can grab it with vicegrips and wrestle it out or pop it out with a prybar.....pay attention to which way you spin it as sometimes its easier to remove in certain position then others.

As for installing new ones.....couple ways...there is a tool that one can buy to install but the average Joe wont really ever use it again so find a socket or something of the like that fits inside the bore of the freeze plug [preferably a deep socket....if not an extension on the socket may be needed] and carefully drive them into the block paying attention to finish with the plug in as deep and as square as the original. DO NOT put anything on the outside of the plug like silicone etc its really not needed and can cause more harm then good.

Now you say "what happens if i mess up the first one and it goes inside the block?" grab a magnet and fish it out...you will be able to get at it as it will be deformed just remove as above.....next question is "what happens if i cant find it with magnet no matter how hard i try?"....no big deal just forget about it all together as it wont hurt anything if its left in the block but DO NOT just whack all the frost plugs into the block and call it good because then you will have problems [one left behind is not usually a big deal....6 on the other hand would be].

The rotten one...try to spin it like above...if not just get your big screwdriver or prybar behind whats left of the rim, spin and remove.

Just my way of doing these for 30 years but others probably have suggestions as well.....YMMV....


Rich Mondor, Brockville, ON 77 Hughes 2600
 
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