ninjabones

Don't be so hard on yourself... been there done that. I've changed the oil on my 993 many many times. However, a few weeks ago I was at one of our local DE tech inspections and I decided to do a quick oil change (oxymoron in a 993) while the car was on the lift. I had just done an oil change on my Cayenne (where the drain plugs are similarly placed with respect to the 993 oil pressure relief valve bolt). I was in a rush and did the exact same thing that you did... spring and all the relief valve apparatus flew out all over the place. Fortunately, we had a service manual and I was able to put it all back together in the right sequence. It was, however, a reminder that even with mundane tasks that you've done 100 times (even changing pads or torquing the wheels), you've got to focus and think about what you're doing.

theiceman

..and that is EXACLTY why pilots have flight checks....


Hey we all make bonehead moves from time to time ... sharing the experiences we hope will help others.

I am sure the bits will be there if you were the last one to use the tank. .. i think i have a pic of one of my bone head moves somewhere

ivangene

yea, - I'll raise my hand to "have done stupid things" before

you're alright, no real harm done

salukijac

I called the hobby shop and they found all of my parts, they were still on the screen. I went and picked them up this morning. There going back on in a few minutes.

Ed Hughes

Let's hope....1 bar of pressure is pretty low if running at higher rpm's. The oil warning light should have been the clue to shut down....

salukijac

The light never stayed on, it was only at startup and as soon as I gave it gas it would go away. Anyway replaced the parts, pressure is up to normal and now I'm taking it out for a test drive.

Ed Hughes

The only reason the light went away is because you gave it gas, it still was low on oil pressure, it just was above what would turn the light on. The fact you said you only had no more than 1 bar tells the real story.

salukijac

When I saw the light on, I was wondering if it was a result of draining oil from the wrong plug (area) and oil being low in that chamber or something like that. You have to remember at that point I had no idea what I had done.

Yeah it was pretty stressful when I noticed I only had one bar. That's when I started retracing my steps and well the rest is...well documented here.

Came back from my test drive and all is back to normal, good pressure, no light, good temp.

All is better now and I think I'm going to have a beer.

User 4221

Have one for all of us!

dshepp806

Good news.

I gotta' tell you the story in my case (although it wasn't me).

After I first purchased mine, I quickly rxd the Bentley on it.....had the son-in-law Master Toyota Tech over at the house, as we discussed various things. I don't have a full blown shop at my house but boy does he have a nice one at Toyota!, We discussed dry sump systems and looked at the Bentley areas for the oil change,..no big deal, I figured. This boy's into Beemers,..and has a few. We schedule a visit over to his place, on his off day,..can make use of his bays all day (if necc'y).

This is the first time I lifted my car (89), so I spent time with him noting the oil cooler lines and the importance of avoidance of "crimping methodologies".....up she goes,....now, we're both looking ALL over this bitch (underneath) studying what was before us,..suspension....rubber....tranny, engine....then we get to work. Kyle heads towards the engine oil cooler, as do I. He's already giving me eat-sheeit looks for telling him to put anything away that was attached to a compressor.......this will be a "torque"day ONLY. The oil cooler bolt comes off with no excitement,..out comes impressive amounts of oil, at a respectable rate........ I head back to the front of the car to relook at some tie rod bushings (as well as others) and leave him to the rear of the car. A bit of time passes,..I "happen" to look towards the rear of the car JUST AS KYLE REMOVED THE VERY NO_NO YOU mentioned....I hear all kinds of noise from pieces dropping to the screen,..Running back to his location, hollering "WHAT THE FUCH WAS THAT?????" (not realizing (yet) what he had done,..and thinking I just watched PIECES come from my crankcase). "YOU'RE ON THE WRONG PIECE MY DEAR FRIEND", uttered upon arrival. Pissed, I grabbed the Bentley and quickly dialed up the needed data....making damn sure all went back correctly. Freaked me out at first,...we went on with the proper oil change steps,..pretty uneventful,..except for watching him attempt (many times) to get that oil filter started,..I finally did it myself (gotta' hold your mouth just right). Lessoned learned.....watch everything,..or just do it yourself.

On a visit (later) to my P-wrench's place,..I explained the event and asked him to remove it and inspect,..he said all was well.

NEVER, did I drive it in that state of unprotection (thankfully). I would think you're OK (never want to see that oil pressure light at all in my 89,..other than cranking)....but would defer to the experts who are already chiming for you. Maybe there exists possibilities of idle pressure being off with the spring and piston removed....you'll hear shortly, for sure.

These type of lessons wil NOT go unlearned by those who experience them.

Best of luck to you.

Doyle

dshepp806

Would the oil pressure have dropped so low at idle, with this piece out? Could there have been oil starvation at low RPMs during the period? Would there have been any subsequent damage from this?

Intuitively, I would hope the revs were kept up...?

Best,

Doyle

Ed Hughes

Bit of a correction for future viewers: There is no drain at the engine oil cooler, so don't try and drain any oil from there. There is indeed one of these mounted on the RH side of the engine, and there is another cooler up in the RH fender. If one has oil coming out of either of these, however, there is a problem.

Perhaps you are referring to the oil TANK on the RH side of the car?

race911

Yep. Shiny machined circular surface and some bare threads looking at me when I popped the engine lid. And a bunch of residual oil all over the right side of the engine. I just sold him a used 2.7 I had around, and parted out his core.

I'm shocked to hear of how many oil-pressure-relief-as-drain-plug stories I've heard. Maybe it has something to do with you guys coming in with 3.2L engines not having the sump plate? Back when I got into it, when we competed with dinosaurs on the road, all the old German guys would say how you had to clean the sump screen like a Type 1 VW engine. So we did. Until somewhere along the way we didn't anymore. I guess when you were looking for a 6-8" diameter sump screen you knew it wasn't coming from where the pressure relief plug was.

And to take this to a current level of dumbassedness, a friend has a new '10 Mazdaspeed 3. In for its first oil change at the dealer. Find out over the weekend it dumped all its oil after the drain plug fell out. So now she's waiting to hear what kind of song-and-dance they're going to tell her. She heard not-so-nice mechanical noises. Would LOVE to be there as they come up with their explanation to a 28 y.o. woman. Who, I don't think is known to them, has been wheel-to-wheel racing and karting for about 10 years (including some pro in the Koni Grand Am series).

Amber Gramps

Never been through a thread so fast. On the edge of my seat. Hope all is well.

Don't worry, we've all done crazy things to motors. I once broke a cam (on a mopar 318) into little bitty chunks, used a hammer to pound it out, and just slid a new one into place without so much as lubing the races or checking the oil pan for frags. What could have gone wrong? I was 18. It fired right up. . . .

dshepp806

I am,..my apologies, Ed. I did mean OIL TANK. Was running in another thread and still had" cooler" on my brain!!!! COrrection to all,..I meant OIL TANK,..NOT OIL COOLER.

Sorry guys (I actually know the difference and still screwed it up!!)

Thanks for correction ED.

Best,

Doyle