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dino coupe #1832

Discussion in '206/246' started by champtc, Aug 28, 2009.

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  1. champtc

    champtc Formula Junior

    Apr 18, 2004
    732
    #1 champtc, Aug 28, 2009
    Last edited by a moderator: Sep 7, 2017
    ok- looks like rain this weekend on the east coast- so time in the garage! How do I get these freeze plugs out? I want to take em all out to boil the block to get ready to rebuild. I have drilled a hole in one & tried to pry it out with a screw driver- no luck as the plug is a soft metal & bends. I tried a dremel ( I hate those things) and it does not have a small enough circumference to cut it out and I am nervous about cutting the block. what to do?
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  2. daviekj

    daviekj Formula Junior
    Silver Subscribed

    May 9, 2008
    486
    UK
    #2 daviekj, Aug 29, 2009
    Champtc,
    firstly I have not removed these from a Dino block before, but have from several other iron engine blocks. I used a similar method to that you are showing. I punched a hole through the centre of the plug with a thin sharp chisel, then just levered them out with a large screw driver. As the centre of the plug streches in, it pulls the perimeter away from the block. If the plug fulls through, I would have thought you could lift them back up with a magnet and then crush them with pliers to pull through.

    An alternative would be to use a slide (pull) hammer, if you can get a hook end through the hole.

    Further, option is to drill lots of small holes around the plug to get rid of the centre metal, should then easily collapse.

    Kevin
     
  3. champtc

    champtc Formula Junior

    Apr 18, 2004
    732
    #3 champtc, Aug 29, 2009
    lots of good ideas here- will try them..thanks
     
  4. champtc

    champtc Formula Junior

    Apr 18, 2004
    732
    #4 champtc, Aug 29, 2009
    Last edited by a moderator: Sep 7, 2017
    Well-I have done six of them and am glad that I did. there was a lot of rust & scale behind the cylinders. I don't think you can take these out without the engine out of the car. It took some time but I found that if I drilled the hole at the very top of the freeze plug (toward the cylinder head) then you can put a sturdy rod (I used a large drift) and bend it out and eventually it will come. I used a lot of PB blast in doing it. You also have to be very very careful how far you drill or you could nick the cylinder wall. I still have to do the ones on the flywheel side of the block & the oil gallery ones. Jim Selevan reminded me to be very certain that I replace those correctly as that was the mistake that the mechanic made on OMGJON's car and no oil pressure!
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  5. ferrari dino

    ferrari dino Karting

    Feb 16, 2006
    180
    Southern California
    Full Name:
    John Kennedy
    #5 ferrari dino, Aug 31, 2009
    Last edited: Aug 31, 2009
    I used to hit the bottom inside of the plug inward. If the plug is fragile hit the bottom lip. Use a blunt tool like a punch. This will cause the top portion to swivel out. If you grab the lip with a channel lock pliers you can leverage the plug out.
     
  6. champtc

    champtc Formula Junior

    Apr 18, 2004
    732
    #6 champtc, Aug 31, 2009
    I should have tried that. It was a hard job. the oil gallery plugs came right out but the freeze plugs (especially the ones by the fly wheel) were tough to do. My fingers look like they got hit with a meat tenderizer mallet! One important note of caution is that the two plugs by the flywheel are closer to the cylinder liners that the ones on the side of the block. Be VERY careful when drilling these out- especially the one most forward- or you will nick the cylinder liner. It was one of those jobs that was a pain but I am glad i did it. I feel like I say this all the time!! The next step is to acid dip the block and clean it up for installation of the crank & rods. More to come!!
     

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