DavidO here again. I was just writing to a friend about the idea of a leak in the oil cooler allowing oil into the cooling water and thus out the exhaust. As I was writing, I realized that my oil coolers are in the coolant system and not the raw water side. Therefore there is no way for the oil to enter the exhaust. So I am back to checking the turbo seals. I will keep all informed of my findings.
DavidO On Oct 4, 2:39 pm, David Oates <[email protected]> wrote: > Thanks, when I get back to the boat, I will look into that process. > > DavidO > > --- On Mon, 10/4/10, e b <[email protected]> wrote: > > From: e b <[email protected]> > Subject: Re: [UnifliteWorld] 8.2L Detroit Diesel using oil > To: [email protected] > Date: Monday, October 4, 2010, 2:36 PM > > a pressure test is the best way. if its is piped in with flexible oil > lines, simply remove the lines, plug one side of the cooler ( or the end of > the > lines if it is easier ) and install a fitting with a gauge on the other > side and pressurize the cooler, it should be safe to 120 psi or more but im > sure 60 psi will be plenty.. if it doesn’t hold pressure its bad.. if it is > simpler you can do the opposite, pressurize the raw water side of the cooler > the > same way, by plugging both ends, the air will then enter the oil side of the > cooler / engine but wont do any harm... > > Eric > > ----- Original Message ----- > From: David > > Oates > To: [email protected] > > Sent: Monday, October 04, 2010 7:51 > AM > Subject: Re: [UnifliteWorld] 8.2L Detroit > Diesel using oil > > Eric, that's very interesting. Is there a way to > determine if that is happening? It is extremely difficult to > reach/remove the oil cooler on that engine. That in itself is a > positive > indicator that being the problem - Ha Ha. > > DavidO > > --- On Sun, 10/3/10, e b <[email protected]> wrote: > > From: > e b <[email protected]> > Subject: Re: [UnifliteWorld] 8.2L > Detroit Diesel using oil > To: > [email protected] > Date: Sunday, October 3, 2010, 1:47 > PM > > 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 > > To: UnifliteWorld > > 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]. > To > unsubscribe from this group, send email to > [email protected]. > For > more options, visit this group > athttp://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. > > -- > 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 athttp://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 > athttp://groups.google.com/group/unifliteworld?hl=en. -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. 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