Re: [ihc] Re: 345 Oil drain holes clogged?

["Jim or Ginger Aos" <jaos@xxxxxxxxxxxxxxxxx>]

----- 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.
Cheers Jim A.