Marked as spam again ---
On Mon, Apr 7, 2014 at 9:13 AM, Frederick Moir <fredy4.s...@yahoo.com>wrote: > Re-sent, maybe it will go through this time? > > Fred Moir > Lynn MA > Diesel preferred. > > ----- Forwarded Message ----- > >From: Frederick Moir <fredy4.s...@yahoo.com> > >To: Mercedes Discussion List <mercedes@okiebenz.com> > >Sent: Sunday, April 6, 2014 2:36 PM > >Subject: Fw: [MBZ] 76 300D low oil pressure update > > > > > > > >Kaleb, et alia. > >>After thinking about your problem oil pressure scenario, I have a few > observations to share. > >>(The delete key is you know where.) > >>The video of the oil pressure vs the engine speed was thought provoking > as usually on 617 engines there is an over capacity of pumped oil, enough > to peg the meter by approx. 1000 rpm hot. > >>The conclusions that I came to were:- > >> > >> > >>I. There is some restriction in the oil pickup circuit to starve the > pump of sufficient oil thus the low oil pressure, > >>or an air leak reducing the pumps ability to suck up enough oil at lower > rpm. > >>You had stated that the oil pressure relief spring was OK, did you make > sure that the valve behind the spring actually closed off the bypass port? > >>Oil filter O rings? Worn pump or shrunken O rings? > >> > >> > >>2. There is some massive leak in the oil delivery circuit beyond which > the oil pump is unable to supply enough oil until the engine turns 3000 rpm > plus. > >>Internal leaks as described by other Listers. Badly worn bearings, > broken or cracked cam towers, gasket failure allowing oil to go elsewhere > than designed. > >>The cam tower oil delivery pipe is loose or fell off. I'm assuming that > this is a non turbo, so no oil squirts that may have failed? > >>YMMV > >> > >>Fred Moir > >>Lynn MA > >>Diesel preferred. > >> > >> > >> > >>>________________________________ > >>> From: Kaleb C. Striplin <ka...@striplin.net> > >>>To: Mercedes Discussion List <mercedes@okiebenz.com> > >>>Sent: Sunday, April 6, 2014 1:16 PM > >>>Subject: Re: [MBZ] 76 300D low oil pressure update > >>> > >>> > >>> > >>>I will still pull the valve cover and see what is going on > >>>there. Otherwise, this thing seems about like a brand new motor, no > >>>blowby, oil stays clean even after running it a bit. I am perplexed. > >>> > >>> > >> > >> > > > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > All posts are the result of individual contributors and as such, those > individuals are responsible for the content of the post. The list owner > has no control over the content of the messages of each contributor. > -- OK Don NSA: The only branch of government that actually listons to US citizens! "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2012 Passat TDI DSG, 44 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
