Y Class rebuilding possibility

[NW Mailing List]

Jimmy,

You are correct about cylinders having sleeves. On rare occasions the cylinder casting would crack and require replacement. The bar frames were more prone to crack due to the wear and tear of service, but sometimes the cylinder would crack, too, possibly because of being wrecked and just by being bolted to the frames. There were a lot of stresses from the high piston thrusts and reciprocating parts on the older Class Ys with a BP of 270.

Bud Jeffries
  ----- Original Message ----- 
  From: NW Mailing List 
  To: NW Mailing List 
  Sent: Tuesday, March 13, 2007 6:10 AM
  Subject: Re: Y Class rebuilding possibility


  "Again my guess is that after the Y5 cylinders were available as spares, rarely did the foundry have to cast many Y3/Y4 cylinders, if any."

  Without taking the time to research the database, were not cylinder sleeves used negating the need for a complete cylinder casting?
  Jimmy Lisle


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