Reply OP Posts OnlyOP Posts Only Reply OP Posts OnlyAuthorDiscussionchriz1 Original Poster676 posts217 months[report][news]Thursday 20th June 2019Have i done this correct, leak off test on my combo van 1.7 cdti run engine from cold for 2 mins rev'd at 2k for 30 secs. The results in the picture .. Can't find a decent guide some say you run test for 5 mins doing various revs Sorry it's sideways! Disco_Biscuit837 posts196 months[report][news]Saturday 22nd June 2019I used to work at a diesel specialist, we used to run them at idle for 3 minutes, anything over 30ml is excessive back leakage.chriz1 Original Poster676 posts217 months[report][news]Sunday 23rd June 2019Ok Thanks for that tapkaJohnD1,953 posts206 months[report][news]Sunday 23rd June 2019I'm aware of a "leak down" test, pressurising a cylonder to check for ring or valve leaks.What's a "Leak off" test?JohnNovexx346 posts76 months[report][news]Sunday 23rd June 2019Leak off test measures the volume of fuel being returned from the in...
