On Tue, 30 Nov 2004, Jim or Ginger Aos wrote:
----- Original Message ----- From: "Tom Harais" <THarais@domain.elided> To: "IHdigest digest" <ihc@domain.elided> Sent: Monday, November 29, 2004 6:09 PM Subject: RE: [ihc] Re: 345 Oil drain holes clogged?Ted: The IH drainback holes are notorious for holding oil in the upper valve train area with very slow drainback; plugged or fully opened. If you find any pertinent improvement to this, please share. Tom H., '76 Traveler
I was able to ( reduce ) the symtoms by changing from M1 15-50 oil, to M1 10-30. That was in the 1310 with a 392.Good tip.