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Thread: Hole identification on 2.25 engine required, please

  1. 26th December 2010, 09:43 AM #1
    drifter Guest

    Hole identification on 2.25 engine required, please

    Hi team

    I recently sent my engine away for a rebore and a cleansing dip. It's back now and I am preparing to reassemble it.

    One of the jobs done was to replace the cam bearings (cos the dip wasn't too kind on soft metals).

    Anyway, in having a look over the block and re-acquainting myself with what fits where (it was away a long time) I have discovered two holes that I can't identify.

    They go from just above the plate that the fuel pump attaches to to the no.3 and no.4 cam bearings so I suspect they are a part of the oiling system.

    I have looked through all of the pictures I took of the block before I sent it away and cannot see what, if anything, was attached to these holes. They have no thread so I am assuming some kind of plug goes in them.

    Can anyone identify them, please?

    Here are a couple of pics. The first one is of that side of the block, showing the holes just to the left of the distributor mount and above the fuel pump mount:



    In this second pic, I have zoomed in a little closer:


    If you want to see a bigger copy of the pic, click on it.

    All input gratefully received.
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  2. 26th December 2010, 10:16 AM #2
    isuzutoo-eh's Avatar
    isuzutoo-eh
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    Just checked, both petrol and diesel 2.25s of mine, the holes are present and not plugged in any way. Pretend they don't exist
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  3. 26th December 2010, 10:21 AM #3
    drifter Guest
    Thanks, Mark, for the message and for actually checking it out on your own engines.

    I guess mine must have been full of gunk that was cleared when the block was dipped.

    Are you not concerned that they expose the 'outside' of the cam bearings?
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  4. 26th December 2010, 10:45 AM #4
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    To be honest, I didn't look close enough to see if they were blind or not. I will await the answers of the more experienced members on that one too.
    Having said that, the cam bearings shouldn't move and would provide a reasonable seal to the outside world so I don't expect they'll cause any problems not being plugged.
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  5. 26th December 2010, 11:52 AM #5
    Blknight.aus's Avatar
    Blknight.aus
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    from memory they are the bolt holes for the IP timing pointer on a diesel
    Dave

    "In a Landrover the other vehicle is your crumple zone."

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  6. 26th December 2010, 12:18 PM #6
    drifter Guest
    Thanks Dave

    So, maybe, they just tapped the diesel ones?
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  7. 26th December 2010, 12:27 PM #7
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    cant remember, never had an OEM timing marker for setting up the pump and I dont have my dead tree edition of the manual/parts books here that deal with the series stuff.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
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  8. 26th December 2010, 02:53 PM #8
    peterg1001
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    Quote Originally Posted by isuzutoo-eh View Post
    Just checked, both petrol and diesel 2.25s of mine, the holes are present and not plugged in any way. Pretend they don't exist
    Same on mine, and the same goes for the third hole in line with them to the right of the distributor.

    Peter
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  9. 26th December 2010, 04:23 PM #9
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    Mystery Holes

    G'day All, I'm sure you are talking about the 2 holes in the block behind where the distributor fits and above where the fuel pump is mounted, if so these holes had a purpose (note had) thats where the oil gallery is cross drilled so as to allow oil around the cam bearings, cheers Dennis
    ps if you cleaned all the crud out you should be able to see the bearing shell.
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  10. 26th December 2010, 09:07 PM #10
    drifter Guest
    Quote Originally Posted by Dinty View Post
    G'day All, I'm sure you are talking about the 2 holes in the block behind where the distributor fits and above where the fuel pump is mounted, if so these holes had a purpose (note had) thats where the oil gallery is cross drilled so as to allow oil around the cam bearings, cheers Dennis
    ps if you cleaned all the crud out you should be able to see the bearing shell.
    Yup - I can clearly see the bearing shell.

    So - we just leave them open?
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