metal in oil and now other things Options

[blckcelica95]

so i need some help on this one today my girlfriend was driving my celica, it ran fine all day until she stopped and shut the car off for 15 minutes , she gets back in and the car wont start, just cranks over. after about five minutes bam the car starts and runs fine. She get its back here and i take a look at it . its running fine no knock. purring like it always does. so i shut it off, and guess what happened 20 minutes later . wont start . so i wait about a minute try again and it starts up. so i pop the hood and start looking around to see what going on. I found that the spark plug wires had **** the bed so changed them. then i decided to change the oil. and i found metal particles in the oil.
Could these to things be related and what could be the metal in the oil. keep in mind the cars oil pressure never drops below 25 psi when running, it has no knock what so ever. and it idle at round 5-700 rpm.
it sounds to me like im chewing up a rod bearing, or main bearing, but it dosent show any other symptoms but these .
Sean

This post has been edited by blckcelica95: Mar 17, 2008 - 8:42 PM

[rjbibeau]

shouldn't it be like 40-50 psi.....someone correct me if i'm wrong

[Bitter]

what did the particles look like? tiny sparkles? flakes? chunks? shavings?

[blckcelica95]

what did the particles look like? tiny sparkles? flakes? chunks? shavings?

tiny tiny particles, i mean the there really really small . and when im driving the oil pressure does reach 40-50 psi

[rjbibeau]

when your driving it should be near 80's

[blckcelica95]

when your driving it should be near 80's

in the 80's around what rpm , i though 50 -60 was were it should be unless your getting on it

[rjbibeau]

sorry i meant to say it peaks at 80....does your oil light flicker a little bit at idle.

This post has been edited by rjbibeau: Mar 11, 2008 - 10:20 PM

[blckcelica95]

sorry i meant to say it peaks at 80....does your oil light flicker a little bit at idle.

never comes on , and my oil pressure gauge stays right at 25 psi at idle , that why im so puzzled

[Bitter]

what did the particles look like? tiny sparkles? flakes? chunks? shavings?

tiny tiny particles, i mean the there really really small . and when im driving the oil pressure does reach 40-50 psi

some metal is normal. tiny flecks and sparkles like powdered metal is not abnormal in small amounts. if its heavy gray streaks of metal powder coming out with the oil then thats bad. put a magnet to it, i bet most of it is steel from the cylinder walls which is normal. best bet is to drop the oil pan and look for a sludge at the bottom of metal powder. scrape it all out and pan it like they pan for gold. use gasoline or mineral spirits. large particles will settle to the bottom, those are what matter. powder is pretty normal.

[blckcelica95]

there was a fair amount coming out, but it was all very fine in size.

[jesterwr217]

when that happened in my old ford probe the engine was shot it ran but it eventually siezed up after a couple weeks

[blckcelica95]

so i popped the pan off this mourning, and to my surprise the pan was almost spotless, no metal at all so brought a sample of oil down to shop near me and talked with the owner. he doesn't think its anything to be worried about. he said to just put her back together fill it with regular oil and run it 1000 miles. drain it, see if it still there and if it is there could be an issue. to be sure though i want to check the clearance on the rods and main bearings. when i orginally built this motor all the clearances were within spec, so i am doubting that after 4000 miles they are already bad, when the car has never lost oil pressure. but with that being said Will i be able to check them as it sits in the car with everything attached or will it throw off the measurement of the plasti guage.
sean

This post has been edited by blckcelica95: Mar 12, 2008 - 3:41 PM

[rjbibeau]

it's fine in the car just don't move the crank of course.

[97GTinKC]

If it has only 4000 miles since re-build, I'd consider it completely normal wear particles, change it and check again in a couple thousand miles.

As for oil pressure, 80 seems high to me, you might see that when it's really cold on 1st start-up, Or you are using too heavy weight oil. either way sounds like you are activating the hi-pressure relief valve. Keep in mind; oil pressure is a measurement of RESISTANCE to flow. You could possibly be causing some of the wear particles because your oil is too thick and takes too long to get circulating well in the mornings. most engine wear happens on start-up. IIRC they call for a 5W30? Unless you set it up for extra clearance during the rebuild, If you are running a 20w50 or even a 10w40, you may be hurting more than helping. Which is why I am now running Amsoil's series 2000 0W30 synthetic along with good filters. It puts the oil light out immediately, even in cold weather. I have also noticed in the past some of the cheaper filters dont seem to have working anti-drainback valves, If it takes more than a second or 2 to turn off the oil light or move the gauge, try changing filter brands. JMHO

[speedfeen]

This happened to me once in my 6

my engine was slowly going...there were small particles in the pan then i lost 2 outta my 6 cylinders....then she jsut blew...

then there was major chunks in my pan...

although i did just read that its a re-build...im just giving my .02 on what it could be

[blckcelica95]

so i was talking to a couple people about oils and i was told that synthetics oils can become abrasive, has anyone else heard that ?

[97GTinKC]

so i was talking to a couple people about oils and i was told that synthetics oils can become abrasive, has anyone else heard that ?

No

[playr158]

synthetic oil isn't abrasive...its better at LUBRICATING (ie anti-abrasive) than dyno oil.

more than likely its breakin shavings, keep an eye on it. If it continues you want to have your rod bearings inspected, just incase bearing failure is on the horizon.

[DEATH]

so i was talking to a couple people about oils and i was told that synthetics oils can become abrasive, has anyone else heard that ?

Sounds like some more of the usual BS from haters who can't afford synthetic.

[lagos]

change your oil like the mechanic said and keep an eye on it.
even IF you had some type of mechanical problem in the making, the car should still have no problems starting up. fix your plug wires and see how things go.