HI All,
Pulled the valve cover today on the Lister TS2 and it appears there isn't enough oil making it to the top. One valve had at least some oil coming out of the little hole on the rocker arm but the other doesn't. Oil pressure to the top seems ok, when cracking the banjo fitting near the valve cover plenty of oil came out.
There is a little tube that comes up from where the oil enters the valve cover. It splits into two and appears to dive into the head, presumably to exit on the rocker arms. Can I pull the little tube assembly out to clean? Or can I blow through it in place? Both cylinders show the same oil pattern.