I have an M3.10 Mitsubish Vetus diesel
. It is old but good working.
I started to have a problem with loosing RMP that I can not deal with?
When the engine
is working and I go wil 1800 - 2000 RMP for a long distance every 10 - 15 minutes, without touching anything the RMP goes down to around 1000 for 5 - 10 secons and than again goes up to the normal 2000.
Maybe I can see some air bubbles coming bach from to fuel filter
to the plasitk hard particles filter (but not sure).
Do you have any idea?
I guess this problem can happend to any diesel