460 Ford freeze plugs bad what to replace them with
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460 Ford freeze plugs bad what to replace them with

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    Senior Member Dominator Scott's Avatar
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    Default 460 Ford freeze plugs bad what to replace them with

    The freeze plugs in my 460 are bad from age and one of them sprung a leak. I am removing them and was wondering if I should replace them with brass or steel plugs? Or should I use the rubber expansion plugs?

    I replaced one of the freeze plugs last year with a rubber expansion plug and it has held up fine so far,but will they be okay if I put rubber expansion plugs in all 6 holes.

    Whats your opinions on this.
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    Senior Member UNASHAMED's Avatar
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    Brass
    "Don't make me get my penguin"

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    Senior Member jetboatperformance's Avatar
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    Scott knock them out an replace with Brass , not advisable to use the rubber deals IMO Tom

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by UNASHAMED View Post
    Brass
    Are the rubber expansion plugs not a good idea? If not why? Just curious.

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    460
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    Quote Originally Posted by Dominator Scott View Post
    Are the rubber expansion plugs not a good idea? If not why? Just curious.
    Correct. Only use those in a jam. I wouldnt use anything else but brass

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by Fo Sitty View Post
    Correct. Only use those in a jam. I wouldnt use anything else but brass


    What is the problem with the expansion plugs. Inquiring minds want to know.

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    Senior Member UNASHAMED's Avatar
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    They deteriorate, pop out, after time crack and leak (they're rubber, so very susceptible to heat and oils), etc. Great to use in a pinch but not for long time usage. Brass freeze plugs will probably outlive the life of your bottom end in a jet boat lol
    Last edited by UNASHAMED; 04-21-2010 at 11:03 AM.
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    The rubber expansion plugs are made of .......rubber......, the rubber will loose its ability to seal as the material fatigues and ages. In addition they will not hold up to pressure as well as a properly installed brass plug, and there is a remote possibility the nuts can vibrate loose.

    I have heard of people using them so they could remove them and flush sand out of the block periodically.

    You can use them, but they become an additional maintenance item - and who needs that.

    Doug

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    Quote Originally Posted by Real McCoy View Post
    I have heard of people using them so they could remove them and flush sand out of the block periodically.
    Doug
    i personally use them in the front one's on each side for the reason mentioned above...change them after every season...all the rest are brass...just my .02 cents

    FastRat

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    Senior Member Dominator Scott's Avatar
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    Quote Originally Posted by FastRat View Post
    i personally use them in the front one's on each side for the reason mentioned above...change them after every season...all the rest are brass...just my .02 cents

    FastRat

    I like that idea for the ease of flushing sand out of the motor. Just need to make sure they easily accessible without having to pull a motor mount to remove them. Then again I'll probably just put brass plugs in and be done with it.

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    Senior Member Dominator Scott's Avatar
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    Well I got the port side motor mount pulled last night and got the 3 of the freeze plugs removed and replaced. Holy chit what a pain in the azz!!!!! Also there was a bunch of sand in the block so I got all that cleaned out the best I could by digged my fingers in there and shop vaccing it out. I will hit the starboard side tonight and then she will be done

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    Glendale Arizona Squirtcha?'s Avatar
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    Might've almost been easier to pull the motor and do it.

    When I first bought my Kachina someone had used the rubber freeze plugs on the 460 that was in it. Got about 10 miles from the ramp on a weekday test run (nobody on the lake and real stupid of me) and it spit one out. It took me a while to realize that the ass end was dragging. Checked it and noticed the problem, but was unable to find the plug. Brother you're stuck in that situation. You can't drive it because when the motor is running, it's pumping water into the back of the boat. Fortunately as long as you don't start it, it won't sink, but you aint going anywhere unless it's on the end of a rope. 10 miles would be a hella long way to paddle a jetboat.

    Took quite a while for someone to come along and pull me in.

    Guess who bought some proper freeze plugs on the way home.........
    Last edited by Squirtcha?; 04-22-2010 at 06:39 AM.

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    Default 460 Ford freeze plugs bad what to replace them with

    I would replace them with a BBC!!!! LOL


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    Quote Originally Posted by Warp Speed View Post
    I would replace them with a BBC!!!! LOL

    Till the chevy spits a rod and your right back into a FORD

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