Just found out this while making regular maintenance:
The car was running smoothly with steady idling and with no problems whatsoever.
My Boxster had a cam guide worn 12K miles ago, and I've had substituted pads and cams from 1-3 bank, AOS and RMS at a local Porsche specialist. I've asked also to change pads from banks 4-6 but I'm not sure if the workshop did that.
The car has 38500 miles.
Camshafts from bank 4-6 are looking good, Thursday I'll get to open the valve cover of 1-3 to check if those camsahfts are ok too.
Going to check it with a durametric cable asap (I've just ordered one).
Do not run that engine again until you find the source of that metal! You may have gotten lucky and caught a major failure before you grenaded the motor.
Well, the typical suspect would be the IMSB. But to me it doesn't look like typical IMSB parts. Hard to say.
How is your oil filter looking?
Best would be to tear down the engne to find the fault. If you have these big metal part in your oil system that will harm the engine pretty soon if it isn't harmed yet.
Regards, Markus
Last edited by Smallblock454; 06-29-2016 at 04:08 AM.
It's difficult to be that because the car is running ok with no failures nor rough idling, but I'll check it next. I was hoping to find what happened before taking the engine out
It's difficult to be that because the car is running ok with no failures nor rough idling, but I'll check it next. I was hoping to find what happened before taking the engine out
Regardless of how the engine is still running, that is on Hell of a lot of ferrous metal from a mostly alloy engine. Something is seriously wrong, and continuing to run it is likely to make it even worse. Shut it off, hide the key, and take the engine out before something bad becomes disastrous.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
It's difficult to be that because the car is running ok with no failures nor rough idling, but I'll check it next. I was hoping to find what happened before taking the engine out
Remove the oil filter & stick your longest finger into the hole where the filter mounts. Feel for metal shavings inside. If you find metal there it has circulated thruout the engine & you need to find another one.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
Metal debris has already circulated throughout the engine. There is no "saving" this engine. Its done. Even if you can repair whatever failed, its a total teardown and a complete rebuild.
I'd tear it down just to see what failed and in parallel start looking for a replacement engine to swap in.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
Regardless of how the engine is still running, that is on Hell of a lot of ferrous metal from a mostly alloy engine. Something is seriously wrong, and continuing to run it is likely to make it even worse. Shut it off, hide the key, and take the engine out before something bad becomes disastrous.
IMHO, if it still runs well, ignore JFP.
Get a friend to record the video and go have some fun with what's left of it:
...and maybe another friend with a fire extinguisher.
__________________ I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
I'm going with IMS bearing. Don't run the car. Turn it over to TDC by hand. Lock it there. Remove tranny and follow the procedure to remove the IMSB cover. That means loosening tensioners etc. I'll bet the bearing is missing the bearing cage and a side shield. I'm way less squeamish about metal in the oil than most forum members. If it is the bearing there's a good chance you caught it in time and can just slap another $10.00 fully sealed greased bearing in its place. I know heresy, but more likely than not you'll fix the problem. If you put an open bearing in, the metal debris will kill it in short order. You need a fully sealed bearing.
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