The BMW UUC Digest Volume 3 : Issue 291 : "text" Format Messages in this Issue: Re: <misc> oil in coolant, no coolant in oil Re: <misc> oil in coolant, no coolant in oil Please remove me from this email list FW: E30 M42 Emissions Saga--update <E30> Interior color
---------------------------------------------------------------------- Date: Thu, 19 Oct 2006 19:32:28 -0500 (CDT) From: "Kevin Jay (Mr.Fabulous)" <[EMAIL PROTECTED]> To: bmwuucdigest@uucdigest.com Subject: Re: <misc> oil in coolant, no coolant in oil Message-ID: <[EMAIL PROTECTED]> Thanks for commenting, Scott. So does collective the wisdom of the list say I'm looking at a head gasket? Is there any other place in this motor where oil could breach into the cooling system? - k --- original message --- From: [EMAIL PROTECTED] Subject: Re: <misc> oil in coolant, no coolant in oil Fluids go from high pressure areas to low pressure areas. The oiling system runs from something like 20 PSI (warm idle) to, what, 80 PSI at speed? Maybe more when cold? The cooling system is pretty low pressure - 7 to 10 PSI, IIRC. So in a breach between the oil system and the cooing system, oil would travel into the cooling system. >To: bmwuucdigest@uucdigest.com >Subject: <misc> oil in coolant, no coolant in oil > >Recall a posting from me a few weeks ago asking if there was an acceptable >level of oil in one's coolant (universal response was NO!). I just got back >an oil analysis from Blackstone, and they find no traces of antifreeze in my >oil. ------------------------------ Date: Thu, 19 Oct 2006 22:18:41 -0400 (GMT-04:00) From: Maverick <[EMAIL PROTECTED]> To: bmwuucdigest@uucdigest.com Subject: Re: <misc> oil in coolant, no coolant in oil Message-ID: <[EMAIL PROTECTED]> I hate to throw the proverbial wrench in the works, but there is a way that a bad head gasket can force oil into the coolent. It can happen when the pressure in the water jacket is still high from being hot, but the engine is shut off and the oil pressure drops...rare, but it can happen. It usually also allows coolent to pass back, but not always. Also, a breach in the right place can allow combustion pressure to force oil into coolant and vice-versa. Have the oil tested for coolant and excess combustion products and have the coolent tested for combustion products...I believe there is a test that changes color when exhaust is present in the coolant. Also, a leak down test can show more than a compression test. If when you pressurize the cylinder you get any bubbles in the coolant or hear air escaping through the oil fill, you can get a good sign of a problem. David Ellsworth Richmond, VA -----Original Message----- >From: "Kevin Jay (Mr.Fabulous)" <[EMAIL PROTECTED]> >Sent: Oct 19, 2006 8:32 PM >To: bmwuucdigest@uucdigest.com >Subject: Re: [UUC] <misc> oil in coolant, no coolant in oil > > >Thanks for commenting, Scott. So does collective the wisdom of the list say >I'm looking at a head gasket? Is there any other place in this motor where >oil could breach into the cooling system? > >- k > >--- original message --- > >From: [EMAIL PROTECTED] >Subject: Re: <misc> oil in coolant, no coolant in oil > >Fluids go from high pressure areas to low pressure areas. The oiling system >runs from something like 20 PSI (warm idle) to, what, 80 PSI at speed? Maybe >more when cold? The cooling system is pretty low pressure - 7 to 10 PSI, >IIRC. So in a breach between the oil system and the cooing system, oil would >travel into the cooling system. > >>To: bmwuucdigest@uucdigest.com >>Subject: <misc> oil in coolant, no coolant in oil >> >>Recall a posting from me a few weeks ago asking if there was an acceptable >>level of oil in one's coolant (universal response was NO!). I just got back >>an oil analysis from Blackstone, and they find no traces of antifreeze in my >>oil. >Search the ARCHIVES:http://www.mail-archive.com/bmwuucdigest@uucdigest.com > > >__________________________________________________________________________ >In memory of Michel Potheau - friend, enthusiast, founder of the BMW CCA. > >UUC Motorwerks - BMW Performance Fine-tuning and home of the Ultimate >Short Shifter - accept no substitutes! >908-874-9092 . http://www.uucmotorwerks.com ------------------------------ Date: Fri, 20 Oct 2006 01:10:41 -0600 From: "Dan anderson" <[EMAIL PROTECTED]> To: bmwuucdigest@uucdigest.com Subject: Please remove me from this email list Message-ID: <[EMAIL PROTECTED]> thanks. ------------------------------ Date: Fri, 20 Oct 2006 08:41:12 -0400 From: "john grills" <[EMAIL PROTECTED]> To: <bmwuucdigest@uucdigest.com> Subject: FW: E30 M42 Emissions Saga--update Message-ID: <[EMAIL PROTECTED]> Scott, Prescient...I too now have discovered a leak somewhere on the fuel rail that has manifested itself since I've had the car on the road for a couple of weeks. Car had been sitting before I started out on the reclamation project. Oh boy, more work! This might also explain the lean mixture as Gary had suggested. DEC cat is a nice piece. 100k pre-emptive replacement is probably not a bad idea, as I intent to keep this car a couple of years or so (when ARE those diesels coming our way?). Did you do the o-rings yourself? I have a set for the M20 engine...any idea if they are the same size? I'll look in the ETK to cross-reference. Looks like another trip to the beloved parts counter today if not. This car has been keeping me busy, but it is a blast to drive! The new 93 D'Sylva chip is very nice! Almost there...mehopes. Cheers! John Grills NCC-BMWCCA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 11, 2006 2:49 PM To: [EMAIL PROTECTED] Subject: Re: E30 M42 Emissions Saga John, here's what happened with the '91 318is we purchased earlier this year. It had an under-hood fuel leak. The leak turned out to be injector O-ring seals. Had them replaced and all was well. Under the intake manifold are a ton of hoses - fuel, vacuum, coolant, all kinds of stuff, most of which were cracked. Two of them are these strange 4 way things like nothing you've probably seen before. The tech referred to it as a "rat's nest" of hoses. So while they were in there for the injectors, they replaced pretty much all of those hoses. After that and some new plugs and an air filter, it passed smog - maybe not with the flying colors I'd like to see, but good enough for a car with over 300K miles. Your car probably isn't anything like mine, I just felt like telling the story. But it got me thinking about injectors. Could a leaky injector (internally, not externally like mine) be causing you problems? Gary didn't think so and he's smarter about this stuff than I. The valves have hydraulic lifters, nothing to adjust. To avoid the possibility of a cooled-down cat, I sat with the car idling, occasionally at 2000 RPM, until the tech was ready to test it. I didn't know that cats needed any kind of run-in time before they're working at 100%, but what do I know. Is your new cat sized properly for the engine? Scott Miller GGC BMW CCA >Date: Tue, 10 Oct 2006 15:46:17 -0400 >From: "john grills" <[EMAIL PROTECTED]> >To: <bmwuucdigest@uucdigest.com> >Subject: E30 M42 Emissions Saga >Message-ID: <[EMAIL PROTECTED]> > >Gruppe: <snip> > >Purchased for $1k: 1991 D-Schwarz E30 318is, 99k "bought it from a <snip> > >Finally got all the suspension/driveline bits up to snuff, and replaced all >the usual under-hood and maint. items to include: >Hoses, Vacuum and coolant (intake boot looked good, but it will be new soon >as well...key thought) >Belts >Filters, air, oil & fuel, all OEM >Bosch F7LDCR Plugs (pre-gapped) >Magnecor 8mm wire set >Power steering hose (reservoir side) >Exhaust manifold gaskets (see driveline maint...had to take the >manifold off >to remove the exhaust...oh drat!) >Front Control Arms and Powerflex Bushes >4 shocks/stuts...BTW how did I forget how bad Tokico Shocks/struts are? Esp. >in this set-up...dumb dumb dumb >Front/Rear shock/strut tower bushes (the 'old' ones from e30M3 re-build were >10x better than what was there) >Driveshaft center bearing (turned to dust...shaft was really wobbling) >Guibo Oil all driveline fluids (synthetics of course, cause it's in my >garage) 'Prolly more stuff, but I forget as it's been so long... > >Car runs/idles great, no misses or hesitation, no smoke.. <snip> >Finally got it into Northern Virginia inspection, safety insp was obviously >no problem. Emissions fail, both 15mph and 25mph dyno runs (I should >have made a copy of the 1st report...they took it upon my return...more >on that later). > >So, I'm WELL into this by now and the numbers were not even close (no >Italian tune ups), specifically in the 25mph test...so....new DEC Cat >and O2 >sensor and happy day, right? $400 and one month later (I'll spare the >gory details about the $17x2 bolts from the Stealer for the Center >Resonator to Cat connection...) > >Here's the result of test #2, passed (barely), all dynamic >measurements, new >cat/O2 sensor plus all the above. I ran-in the Cat couple days prior >with 1+ >hrs of spirited Hwy and city driving. Car was hot when dropped >off...but I suspect it sat for at least 30mins...the tech said he would >warm it up before the test...I'm guessing he let it idle for a minute, >saw the H20 temp >at normal, and did the test, so Cat was hardly 'glowing' > <snip> >Looks great, right? > >25 MPH, 2010 RPM (2nd gear...who drives at 2k rpm in 2nd gear in this car? >No-one in their right mind right?) >(Limit/Reading) >HC ppm (167/158) >CO% (0.89/0.50) >NO ppm (1944/1921) > >Looks not-so-great, right? > >No hint of any mis-fires so why high HC? >High NO = Lean? Intake leaks? Sticky injectors? Nothing obvious, unless the >intake manifold gaskets are a hidden source like the S14? Vision inspection >of the intake boot looked OK. >Valve adjustment? Haven't done this yet, but it's time I'm thinkin Plug >re-gap? Nah, that would effect lower speed test the same, right? >Not enough time on new Cat burn-in? ditto as above. >Engine is lugging like a choked pig at 2k RPM in 2nd gear and well off >the torque curve? >Some other strange electrical gremlin in the ignition I have yet to >discover? Can't be, it runs great! > >If you've stayed with me this long, I commend you! > >Cheers > >John Grills >NCC-BMWCCA ------------------------------ Date: Fri, 20 Oct 2006 11:37:10 -0700 From: [EMAIL PROTECTED] To: bmwuucdigest@uucdigest.com Subject: <E30> Interior color Message-ID: <[EMAIL PROTECTED]> Gents and Ladies, With Ed and Rich's help I found that the tan/beige color of the E30 '89 iS upholstery/interior is verified to be Natur with color code 0295. This is on the build ticket (third line down?) and includes the zero. I'll post the exact German later. I'll reference this when I post the items for sale. Thanks all. -Kevin ---------------------------------------------------------------- This e-mail communication is confidential and is intended only for the individual(s) or entity named above and others who have been specifically authorized to receive it. If you are not the intended recipient, please do not read, copy, use or disclose the contents of this communication to others. Please notify the sender that you have received this e-mail in error by replying to the e-mail. Please then delete the e-mail and any copies of it. Thank you. ---------------------------------------------------------------- ------------------------------ End of [bmwuucdigest] digest(5 messages) **********
