Silly question - how do you know you have air in the fuel system?
NOTE - when installing a new secondary fuel filter
, always install it dry, then bleed the system, as detailed in the owner's manual. Here's why -
Prefilling the secondary filter with fuel results in that filter, in effect, being bypassed. This means you just allowed contaminants to flow past the filter, and into your fuel injection pump. Joe
Originally Posted by jdavid
I just replaced the primary and secondary fuel filters on an atomic diesel
5424 on a 1981 O’Day.
I did not prefill the primary fuel filter.
I have been bleeding the engine
for about two hours and I still have air in the fuel system.