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360 Is there a tool for swapping valve springs in-situ

Discussion in '360/430' started by limoruss, Feb 22, 2009.

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  1. limoruss

    limoruss Karting

    Apr 19, 2008
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    Blackpool GB UK
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    Russ Jones
    #1 limoruss, Feb 22, 2009
    Last edited: Feb 22, 2009
    Can anyone recommend a tool small enough to get to the valve springs wilst there still in the head on the engine.?

    Although there are many options, is there an easy one that is usable by just removing the camcover, cam & hydrolic caps ?
     
  2. RayJohns

    RayJohns F1 Veteran
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    May 21, 2006
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    #2 RayJohns, Feb 22, 2009
    You mean to remove the valve spring while the head is on the block?

    Ray
     
  3. limoruss

    limoruss Karting

    Apr 19, 2008
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    Russ Jones
    #3 limoruss, Feb 22, 2009
    Yes, there are a few tools to do it with, just wondering wich one will do the job with ease!
    theres 2 parts to them, 1) To compress the cylinder to 70+ PSI, 2) The tool to compress the spring (all from above wilst head's on)
     
  4. RayJohns

    RayJohns F1 Veteran
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    #4 RayJohns, Feb 22, 2009
    Last edited: Feb 22, 2009
    Many years ago when I was a teenager, I did it on a Datsun head that was in the car. I put some aluminum valve spring retainers on my motor once (only to have them crack later). If I'm not mistaken, when I did that I tried the PSI into the cylinder trick, but it didn't work. I think I resorted to putting rope into the cylinder through the spark plug hole. This jammed the valve up enough so that it couldn't move down and allowed me to compress the valve spring retainer using one of the compressors that loops around the camshaft. I might be mistaken, about I think that's how I pulled it off.

    I'm not recommending that you use this method on your 360 however :) I did it on a motor which I was going to pull out, so I was just messing around to see if the aluminum valve spring retainers made any difference.

    Ray
     
  5. mrlaw

    mrlaw Rookie

    Aug 12, 2007
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    #5 mrlaw, Feb 22, 2009
    Last edited by a moderator: Sep 7, 2017
  6. limoruss

    limoruss Karting

    Apr 19, 2008
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    Blackpool GB UK
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    Russ Jones
    #6 limoruss, Feb 22, 2009
    Errr - a bit big!
    Sealey do a tool very small that seems to be upto the job! - Need to keep engine & head in situ really..
     
  7. windsock

    windsock Formula 3
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    Nov 29, 2006
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    #7 windsock, Feb 24, 2009
    The valve will be damaged. The valve stems are so thin on the 360 that even a slightly bent valve will pass a compression test until the valve head breaks off due to the constant Flexing. Seen this many times and the valve has been bent to some degree every time.
     

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