[C320-list] Diesel Filter Changing Intervals

[Charles Holbrook]

 Joe:
Glad to hear your thoughts on changing filters.  I did change my filters 5 years ago when I bought my 95' Cat 320 but haven't done anything since then.  I am right now in the process of reinstalling my repaired fuel tank and thought I would change my filters now.  I am a bit nervous as I have never primed a diesel and am not sure how to do it.  When I bought the boat the yard primed the engine and like an idiot I did not watch.  
Does any one know of a video on how to prime my Perkins 30?
Charlie Holbrook, Port Clinton, Ohio"Nautigirl"  
    On Sunday, August 9, 2020, 07:10:29 PM EDT, sail-ability at sympatico.ca <sail-ability at sympatico.ca> wrote:  
 
 I fully agree with all previous comments. My go to protocol is to follow the manufacturer’s recommendations. I was a mechanical engineer in the military and we did a study on oil changes on military engines(you can’t get a more extreme environment than what the military puts engines through) we used SOAP (spectroscopy oil analysis programme) we learned we were dumping perfectly good expensive oil!
If you’re worried about it read the manual and do what’s recommended for routine maintenance. More frequently is just a waste of time and $$$$. 
JohnM 
1999#574

Sent from my iPhone

> On Aug 9, 2020, at 8:58 AM, Dave Hupe <hoopdtwo at yahoo.com> wrote:
> 
> I first changed my filters right after buying our boat.  I was concerned when the previous owner informed me he had never changed them (owned I think 6 years).  However, when changing them I was surprised how clean things seemed.  I just changed my filters again after 3 seasons .... Again seemingly very clean.  In the meantime I have checked my Racor very frequently and rarely drained very minor amounts of water/slime. Since my boat is 1994 I feel I should at least fully drain and polish the fuel, but haven't "bit the bullet" on doing that yet. 
> I use a 10 micron racor filter and a Perkins OEM engine filter.  Does anyone know what micron the Perkins spin on filter is?  I think I read somewhere previously it is 2 micron, but Perkins won't reply to my inquiry about this.
> 
> Dave Hupe1994 C320 #32Holland, MI
>