my guess is the engine oil cooler has a pinhole in it... since oil pressure is higher than water pressure, water does not enter the oil system. your raw water leaves the cooler and then goes into your exhaust and overboard... and you see a slick on one side... that’s my first thought ( it happenned to me )
Eric ----- Original Message ----- From: BoatRDavid<mailto:[email protected]> To: UnifliteWorld<mailto:[email protected]> Sent: Sunday, October 03, 2010 1:34 PM Subject: [UnifliteWorld] 8.2L Detroit Diesel using oil My Uniflite (’84,42’,SE II) is powered by 8.2L Detroit Diesels. Starting this year (2010) I have noticed an oil slick that comes from the exhaust of my Starboard engine. I also noticed that when I first rev up that engine (to set the alternator to charge) I get a puff of white smoke. I just finished an annual, 10-day, cruise and I have been plagued by the oil slick and the oil consumption on that STBD engine. I have been worried about the engine as long as I have owned the boat because it is older than the Port engine (indicating that some former owner may have abused them) and it exhibits low oil pressure (~40 psi which drops to nil at idle) and has always use oil more so than the newer Port engine. This latest excessive use of oil is unacceptable and I am thinking about a rebuild or replacement. The engine has about 1850 hours. The oil definitely ends up out the exhaust and on to the water. My first thought is about blow-by. Now I’m wondering if there is somewhere that a seal could have gone bad allowing the oil into the exhaust, say in or around the turbo charger. I am going to check the actual oil pressure, but I don’t know what else to do, and that doesn’t suggest anything about the cause of the excessive usage. Now that I am writing this down it has accrued to me that I am not burning the oil. There is no smoke! And, there is no blow-by present at the breather. There is no dripping or leaking oil from the engine. There is just a lot of oil being dumped into the exhaust – like a couple of quarts each day. Does anyone have any suggestions? I have yet to find a mechanic in the SF Bay Area that truly know about the marine version of this engine (but I’m about to try again). DavidO -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]<mailto:[email protected]>. To unsubscribe from this group, send email to [email protected]<mailto:[email protected]>. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en<http://groups.google.com/group/unifliteworld?hl=en>. -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/unifliteworld?hl=en.
