hello to all my friends.
you have helped me through a month long battle with oring replacements caused by the new ultra low sulfer diesel fuel.
have replaced many orings, shutoff box, orings in the injection pump and the pre filter. today it was a new fuel filter and ring.
no more leaks. but a bubble still appears in the fuel line on top of the pre-filter, immediately after shut down, that is longer than an inch.
starts and runs good.
thank you again, have saved at least $2k on this repair because of you.