EVERY OIL CHANGE WITH THE VW ENGINE . BUT IF YOURS ARE DOING THAT YOUR VALVE SEATS ARE RECESSING POSSBLY THIS HAPPEN TO ME USING AV GAS. THE VAVLES REALLY TAKE A BEATING IN THE VW FOR AIRCRAFT USE.
N1055A FLYING MAC 301274 2874
EVERY OIL CHANGE WITH THE VW ENGINE . BUT IF YOURS ARE DOING THAT YOUR VALVE SEATS ARE RECESSING POSSBLY THIS HAPPEN TO ME USING AV GAS. THE VAVLES REALLY TAKE A BEATING IN THE VW FOR AIRCRAFT USE.
N1055A FLYING MAC 301274 2874