HUMPH
Well-Known Member
- Nov 4, 2009
- 7,618
- Boat Info
- 2003 410DA
2009 Walker Bay 13’
- Engines
- CAT 3126TA's 350HP/
50HP Honda
Has anyone added a second Racor or replaced the original with larger ones?
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Ever the contrarian, I fill every oil filter I can with fresh oil when I put them on, including the ones on my Caterpillar engines. The only ones I don't fill are those with an inverted or horizontal mounting. I think the potential for wear is a lot greater than the potential for contaminated oil when you crank and run a diesel engine with no oil pressure for 15-30 seconds. Besides, if you remove the foil seal in tact, just how much contamination is going to be in a gallon of new Rotella, Delo 400 , SAEO or DEO.?
Hold on, hold on. What the heck are you guys talking abou? Do you mean the racor our filters are not big enough? Also, are you saying some boats have 2 razors and then the primary filter - Basically 3 fuel filters per engine? Also, is there a kit to move my port oil filter to the inboard side of the engine?
You hear that little extra rattle when you crank an engine without oil in the filter? Notice that the little rattle continues until you see oil pressure registering on the oil pressure gauge? While you might not hear the rattle on a diesel engine because of the fuel knock, it is there. That rattle is wrist pins, rod bearings, main bearings all contacting metal on metal because there is no oil cushion on the bearing surfaces because you have no oil pressure until the filter fills with oil. I guess we can argue oil system designs forever, but for me its just too easy to fill up the oil filter before installing it and avoid the risk of premature engine wear. My oil analyses seem to confirm that benefit........the analyses from 1997 read almost exactly the same as the 2011 ones, some 1400 hours later and show no wear metals.
The only time I didn't prefill the oil filters is on previouse gas merc where filter was upside down.
I always prefill the filters on my Cummins filters. They're positioned vertically with the filler hole at the top, so I really see an excuse not to do it. My stbd side is very easy, the port side is more difficult b/c I have to twist and turn before positioning the filter in place. So, I first get the filter in place dry, then I fill it with oil and screw it back in place. This way I avoid any mess with spilled oil.
Alex, when you spin your filters off, do you get a mess? My port one comes off, no spill no nothing. My starboard one comes off and oil goes everywhere. Must be something to do with them not being located in the same position. I have learned to punch a whole in the bottom of the starboard one with a screw driver and let it drain into a bucket first.