254 Camshaft Wanted

Uncle JoshUncle Josh Senior Contributor
in Parts & Pieces Posts: 2,509
Anybody got a good 8 cyl camshaft you don't need?  Tryin to build a bare block into an engine someone can use.

Comments

  • durandjvdurandjv Member
    Posts: 9
    I have a couple that are not perfect, but might run.  I sent a couple off to egge and had them build up and regrind them.  They came back nice and are now in engines.  I think we took apart 10 254’s and only found one or two ok cams.  
  • Uncle JoshUncle Josh Senior Contributor
    Posts: 2,509
    I have one with only one bad lobe.  Do you have an idea what Egge would charge to fix it?
  • durandjvdurandjv Member
    Posts: 9
    Seems like it was around $250. It was so much to grind and so much a lobe to fix, and ours had at least one bad lobe.
  • Geoff C., N.Z.Geoff C., N.Z. Senior Contributor
    Posts: 3,398
    Make sure you use a high zinc oil. These were more prone to wear than any other Hudson design.
    If you're stuck in a hole, stop digging.
  • 29sptphaeton29sptphaeton Member
    Posts: 105
    Check with the Railton Owners Club, they had a batch of 8 cyl. Cams redone.  I think. They’ve done that a couple of times and sell them exchanged. Ed
  • Uncle JoshUncle Josh Senior Contributor
    Posts: 2,509
    One on the way.  Thanks Durandjv
  • Ken U-TxKen U-Tx Senior Contributor
    edited March 4 Posts: 3,340
    Make sure you use a high zinc oil. These were more prone to wear than any other Hudson design.
    I have one of those lifters out of Sheldon Rody's '41. It had more than 0.020" wear on it, as did all the others, and this was a 40K mile car. The problem is that design is always in contact with the cam lobe in same spot all the time. The mushroom tappets like on the Stepdown sixes had a large spherical radius ground onto the faces, and the large 1.250" diameter is offset to the cam lobe so that the lifter face rotates several degrees for each pass of the cam lobe, thus distributing the wear over a much larger area, giving longer tappet life. But even the mushroom tappets need adequate lubrication, as in zinc additives in the oil for good wearing characteristics. In some instances the lifter may not spin correctly in it's bore and then problems can issue with valve lash not being consistent after an adjustment, with possible loss of compression and valve burning as the result.
  • Geoff C., N.Z.Geoff C., N.Z. Senior Contributor
    Posts: 3,398
    Dale Cooper sells new lifters.   These are a poor design compared to the earlier roller lifters, which of course had a smooth rolling action  on the cam, resulting in virtually no wear on the cam or roller.   The pins used to wear sometimes, but nowhere as much as the shoe type lifters. I suppose it was a compromise between reshaping the cam and using a wider radius lifter, and after all, who would have expected these cars to last as long as they have?   The first '29 Hudson motor I  stripped had been rebored several times, and sleeved back to standard size, but there was no detectable wear on the lifter rollers or pins, whereas every engine from '34 on that I have worked on  has either worn lifters or cam, or both, sometimes extreme.  One thing that does not wear is the lifter guide.   Here endeth the lesson!
    If you're stuck in a hole, stop digging.
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