[flash]

lol - couldn't avoid the spam title



back story: as a part of developing the supercharger, i had to figure out the plumbing of things like the idle control valve, the crankcase vent, and the blow off valve - unfortunately i had one of them wrong, and it resulted in pumping the crankcase up with pressure, which blew out my valve seals and then started pumping oil into the intake - it was so bad that i had oil actually sitting on the back sides of the valves in puddles - not good



so, i had the head redone and continued on with the testing and tuning - i began burning oil at an uncomfortable rate - we assumed that i had gunked up the oil rings, but it seemed odd



i then discovered that the air/oil separator was not functioning properly and i was sucking oil up into it, rather than just venting into the system - so, i installed a new one



same problem - huh? then i determined that the hard plastic hose, which i had switched out for some silicone vacuum line, was critical to proper flow direction - too big of a hose, and it let too much through - so, i changed that out for the correct line, thanks to a gift from banditsc



still burning oil - must be the rings - ok, now what? yank the motor - ugh - compression was perfect straight across - it had ot be the oil rings gummed up and unable to expand and scrape off the oil - i thought i would try to clean up the oil rings first - what to do that with? old school was either WD-40 or a mix of tranny fluid and water - i figured by now they must have a better way of doing that - turns out i was right - banditsc and i started scouring the internet - he found one first (that guy is amazing at the internet search thing) - it was made by GM - mopar makes one too, as do a couple of other companies - the most promising was either the GM or the Mopar product - however, i called around everywhere with no luck - it turns out that these are unobtanium, due to an EPA thing that came into play about a year ago,banning the sale- rats! now what? - then, as i was just about to give up, and do a less effective treatment, when i found a friendly parts counter guy at a GM dealership that was willing to meet me on the side of the road and sell me a couple of bottles - i felt like i was making a late night drug deal



so, i removed the plugs, and poured in the cleaner - it soaked for about 2 hours - then i drained it out, and removed the remainder from the cylinders - i then installed a high detergent deisel oil, and a quart of amsoil engine flush - time to fire it up



holy crap! it smoked so bad that i could not see past the car to the culdesac - quite funny actually - it did that for about 15 minutes - then it just flat stopped! had i finally fixed it?



then it was time to drive it - the techs all said to drive it hard for a few minutes and keep it revving - so i did - a puff here and there, but nothing like it was - great! so far so good



then it was time to drain out that oil - ugly! what a mess - clearly it flushed out a whole lot of gunk



time to install engine break in oil - i made the mistake before of using royal purple - nasty stuff - this time i am using amsoil



after driving it on my test run course, which previously would have shown a lot of soot on the tailpipe, and some sign of oil loss, it seems that i have definitely at least dramatically reduced the consumption, if not eliminated it, and am likely headed to full ring seat and normal operation - i still have to log another 20 or so hours on the break in oil, but it is looking REALLY GOOD so far



woohoo!!!

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[tamathumper]

Well done <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />



What was your negative experience with Royal Purple?

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[ds968]

Rockin' good news and kudos for trying this inexpensive solution ( no pun ) instead of taking things apart ! Not to mention how many more here could benefit from this knowledge if/when the cars might exhibit similar symptoms ..

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[rxter]

Sounds like the bug smoggers favored in Mumbai. Glad that it worked out. But if it's unavailable to the masses... <img src="/forum/images/smilies/968/sad.gif" class="smilie" alt="" />

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[flash]

ds968 - jury still out, but so far so good - i'll post the long terms results as soon as they are in



royal purple - i can explain offline, but do can't post the test results, or really publish the details on the engines that blew up as a result of the oil - suffice it to say that under no circumstances would i ever use their oil without a tow truck standing by



rxter - yeah - i'll see what i can do about locating a more reliable source of the stuff - it will come in handy the next time somebody buggers their air/oil separator and ends up sending a lot of oil into the chambers

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[AJG]

Okay Flash so you've went from soft drugs(Chitty Chitty Bang Bang) to the hard stuff...The Hannibal Twin eight! Smoke screen in your drive! You'll be melting snow next!



Andy

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[Porsche Steve]

Flash:



I've got a 92 with just 63k on the odometer that has a self oil changing engine... drinking about a quart every 3-400 miles... I'm wondering if I may also have an issue with the oil/air separator (or god forbid, the piston rings but compression is fine at 195-200 per cylinder). Where is the oil/air separator and how tough is it to get to and change out??? Is there an easy test to see if it is the problem??



thanks/steve

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[flash]

no easy test, but there is a test



it's located on the side of the engine, beneath the intake manifold - no easy way to get to it



$400 part and i had to bring it in from germany



to test it you will need an accurate vacuum/boost gauge, a large fitting to tap into the vent line, and some vacuum hose - you have to disconnect the vent from the throttle body, connect the large fitting to that hose, and then that to the gauge - it must read positive pressure all the time, and never vacuum



a quick visual check would be to make sure you have the hard vacuum line connected to the fitting at the top, and that it is not leaking or has been replaced with regular vacuum line



it could still be the oil ring - this has nothing whatsoever to do with compression, and your readings can be fine and still have bad rings - that is exactly what my problem was

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