Oil leak @ High RPMS! =( HELP!!!

[SiNFuL]

I was driving home last night from a concert and a drove over this garbage can lid in the midddle of the street; obviously not seeing it till i hit it. I was kinda pissed and then I drove over to my friends to adjust my idle. When I start leaving my friend yells and says my oils leaking. Now 2 mo. ago I resealed my oil pan, and its been running beautifull since. I was fairly pissed if my oil pan was leaking, but it seems to be coming from a higher source. I got up early this morning to figure this thing out and no leak(except for some coolaint coming from God knows where). So i driev it back over to my friends to see if the spill is coolant, and its oil. I drove over there shifting cautiously at 2-3000rpms. I let my car idle and look underneath and no leak,(coolant or oil). Wierd stuff, then I leave and I try revving up to 5-6k on the way home.(lately i've been doing this a lot). I park and theres that damn leak again! And when its leaking, its in fairly constant drops, not small! Any help would be great! Thanks guys.
-Galen

[BeteNoir]

Clean the motor with carb cleaner and you will see the leak. Otherwize add flourescent dye to the oil and us a blacklight at night to see the source.

If the leak only occurs at high rpm then it may be the valve cover gasket/D-seals. I've had that problem before. It also could be the gasket for your oil filter mounting plate. Can't think of anything else at the moment.

[SiNFuL]

how hard is it to replace the oil filter plate gasket? is it expensive? Thanks for your response!
-Galen

[240Stilo]

It might be the front oil seal. I had a bad seal before and it made oil run onto the belt which then just threw it all over the side of the car with the intake manifold. Replacing the front seal shouldn't be too hard. All you need is about $7 for the seal at the dealer and rent a pully removing tool from kragen. I changed mine without the tool but, doing it without makes it more likely for you to damage something.

[BeteNoir]

Originally posted by SiNFuL
how hard is it to replace the oil filter plate gasket? is it expensive? Thanks for your response!
-Galen

You have to order it from the dealership. Unless you feel like making one yourself. Not sure of the price.

To remove simply drain the oil and remove the filter. The mounting plate is held in place by 2 or 3 bolts 12mm I believe. Remove the bolts and the old gasket. Installation is the reverse of removal.

Determine the source of the leak before attempting any repair. I have needlessly replaced perfectly good parts on a 'hunch' before.

[SiNFuL]

I'm gonna clean all the spilt oil sometime this week(very busy), and will drive it hard so it will leak and try and find where its coming from. Thanks guys!
-Galen

[SiNFuL]

well sob. I jacked up the car today and cleaned up all the oil. I let it idle till it was warm and at a solid 750rpms...then came the high rpm test. I did a few 5500-6000 rpm runs and a steady 4k. NO OIL LEAK AT ALL! wtf? =). Its kinda good, but Im afraid its gonna keep happening on and off. I checked around the oil filter and there isnt much oil at all. It's mainly around the oil pan and crank pulley, and I think theres some behind the trranny but that just might be really shiny grease(I have a lot of that under the car, but it always has). However, before I did the rpm tests I figured that last time my friend put the oil pan, he put it to "guessed" torque, however he's super intelligent w/ mechanics of car so i figured it would work, and it did. But I bought a trq wrench yesterday($45...jeeze la weez) and decided I might as well torque em up to spec incase they were loose or something. Well I failed to read the 5-80lb trq range and tried adjusting it to 3.651(measuring less than 5), but I didnt realize that it would only work above 5; i figured the markings just started at 5 as a basic place to start. Anyways, I kept tightening it, and it felt loose, so I took my wrench off and out came the top half of the bolt. Man that sucked. However the other what, 15, are still on there so it hsouldnt be falling off anytime soon. I'm bringing it into a shop wed. for a whole bunch of stuff...how much does EZ-outing a screw cost. I have the EZ kit, but I was afraid if I kept trying to fix it, i'd be a crapload worse. Any ideas on this? Is it expensive for a shop to remove half a screw? Still trying to figure out the leak too. On a happy note, I'm installing my PIAA Super Extreme white H4 bulbs today in my H4 conversions I just got last week. Thanks for all the help guys, any further info, comments are definately welcomed!
-Galen

EDIT: Last oil change I did I put in 4.5 qts instead of 4 on accident. I checked the oil today and it was full; so maybe the excess oil was letting out.