I pulled my oil pan off my engine today and it had a decent amount of metal filings in it. Should I continue to tear it down for rebuilding or get a reman? All the apex seals are still good from what I see through the exhaust ports. Is there anything I can check without tearing the engine all the way apart?



Thanks

why are you pulling the engine apart?



mike

I am goin single. And it wasn't starting went through everything that I could to get it running again. With going single I didn't want an engine with 89k going with a brand new turbo. I got a quote of $2200 for a reman. What will they inspect to determine for getting back the core charge? Thanks

are you referring to metal filing sediment in the bottom of the oilpan? like some sludge on the bottom surface?

It looked like brass colored flakes will post pic tonight.

they usually just want the block, flywheel, and water pump housing. they dont look to see if its good thats why its a core



mike

Here is one pic.

thats wierd, i'm curious what that came from... I'd definately disassemble and inspect everything.

I am looking to see if anyone knows what it is first. The dealership said that the core engine shouldn't be taken apart.

looks like bearing filings from the rotors or stationary gears. when the bearing wears it exposses the brass in the bearing. saw this twice on a 12a when the bearings started to fail!

yeah I suspected the bearing material, but thats alot of material in the photograph dude.



I suppose you could inpsect your turbos since they are part of the same oiling system but I think MAZDAROTARYPOWER is correct.

Looks like what I found on an engine that someone had screwed up the thrust bearing on. I bought an engine from a junkyard (86 na) and stuck it my car. Ran great for a little while, then started knocking really bad at high rpm's. It was like someone was pounding on the engine with a sledgehammer. Shut it off and turned the engine over by hand - as I did I discovered the eccentric was free to move up and down about 1/8"!! Upon disassembly I found a crushed thrust bearing which damaged the front main bearing. It ran long enough to remove almost the entire bearing shell! And, it was still running when I tore it down...



Jason

With the bearing or bearings being bad would that affect my core alot? If it was the bearings of the engine I would have to replace the eccentric shaft and stationary gear or just the stationary gear bearing I would still be better off rebuilding or going with a reman?

you don't know til you tear it down and inspect it.



how did it run before this point? if everything seemed fine you probably have a usable core.

Was running good and then I couldn't get it too start one morning and so I decided to tear it down for my single turbo conversion.

https://www.nopistons.com/forums/pub...>/blackeye.gif I was a navy mechanic for 4 years and worked on helos for a while in the nat guard...and one of the first things I learned about metal flakes...silver is normal ware bronze copper color is not good.. lots of metal parts are steel or what not on the outside but have a copper or a light metal on the inside...think of a peanut m&m. thats one way auto shops get people hard is by pulling a pan and showing someone flakes that are from normal ware and saying that its not good....but in your case something is not good.

Definately tear down and rebuild the entire engine. You don't want that **** running through your new turbo that is spinning 100,000rpm.

you'll have some metal shavings, but BRASS colored metal shavings are a bearing...and that's bad. https://www.nopistons.com/forums/pub...IR#>/blink.png

Sounds like oil starvation to me. You'll probably find a rotor bearing that's toasted and you'll be lucky if the E-shaft survived. Did you find anything wrong with the oil metering system?

Correct me if I am wrong but the oil metering pump only provides oil to the rotor housings and rotor faces not to any bearing surfaces. So I don't see how that would be a problem. But the oil metering pump is fine. I cut the oil filter in half and found no metal filings looks like nothing made it past the strainer. I have decided to go ahead and tear it down. I emailed Bruce Turrentine and he recommend to tear it down because it should be cheaper and better to fix it my self. So I will know more on monday or tuesday when I get a socket that will fit the flywheel nut.

yes the oil metering system injects oil outside of the oil system. it injects oil into the combustion chamber, so even if it went wrong you wouldn't find anything in the pan



mike

Post pics of what you find inside https://www.nopistons.com/forums/pub..._DIR#>/sad.png

Found the problem. The thrust plate is worn and the thrust washer is worn to nothing.



http://groups.msn.com/Stylin7/shoebox.msnw

Can't see pics for some reason. They are just red "X" es

Did you try clicking on the x it shows up then. Damn MSN

This is not looking good!! Front stationary gear teeth and rotor teeth are chewed up and the bearings are bad.



Click Here

YEP THAT ENGINE IS TOAST

thats fucked up, my guess is something happened to your oiling system. was the oil pressure normal?



maybe you'll find some blocked passages, or perhaps a failed thermo-pellet in the eccentric shaft. If you werent running the plug that eliminates it, you better test it before you reassemble (I recommend using the plug that eliminates it though!)



good luck, those pics make me sad.

its wierd that the rotor bearing is fine, its like the one main bearing lost its oil supply?



mike