tabe johnson wrote:

>OK --- can someone please explain how and why
>the anti drain back valves in the Mahle and Mann
>filters work so much better at keeping lifters
>from clacking?
>
>
>tabe johnson/87 westy/vancouver bc
>
>______________________________________________________________________
>Post your free ad now! http://personals.yahoo.ca
>
>
>
>
 From what I understand about it, the spring pressure on the valve is
stronger, thus holding against leakage better, keeping the oil in the
oil galleries better/longer before leak down.

John Rodgers
88 GL Driver