Oil Filter Housing Surprise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Franco · 07-26-2019, 07:26 AM

Hi,
Did an oil change today and found these plastic pieces in oil filter housing.
Anyone have an idea what they could be and do i need to put the car on sale

1997 Boxster with 98000 KM.

Thanks

NewArt · 07-26-2019, 07:28 AM

Bits of chain guide ramp. Plastic guides need replacing.

Franco · 07-26-2019, 10:31 AM

Thanks NewArt,

Nice to chat with someone from Montreal, do you know where I can get this done in our area.

Thanks

NewArt · 07-26-2019, 10:48 AM

Call Andrew at AGM (previously WeTune). Very capable, honest and not priced like the dealership! Specialises in Porsche and racecars. Phone 514-633-1497, he's located in Lachine.

Franco · 07-26-2019, 06:59 PM

Thanks NewArt, do you know if this repair is possible without removing the engine?

Franco

Franco · 07-27-2019, 05:48 AM

Hi, I have searched for hours trying to match these plastic pieces to all the chain related parts (photos) and I'm not convinced they are from the guides.

More opinions please

Seal1968 · 07-28-2019, 04:32 AM

No need to pull the pan if these were all in the oil filter housing.

Those vanes get brittle over time - either buy a new one from Pelican, change the oil and move on, or, buy a fancy LN spin-on adapter.

Either way...I bet you're relieved!

particlewave · 07-27-2019, 09:41 AM

Notice that they are all identical. That’s a big clue.

It’s definitely not chain ramp material.
It’s not water pump vanes.
It’s also not from anything in the filter housing.

.

Franco · 07-27-2019, 10:15 AM

Quote:

Originally Posted by particlewave

Notice that they are all identical. That’s a big clue.

It’s definitely not chain ramp material.
It’s not water pump vanes.
It’s also not from anything in the filter housing.

.

Can they be from the inside of the oil pan?

particlewave · 07-27-2019, 10:34 AM

I went through the PET and could find nothing matching the “s” curve. They do look like vanes of some type, but I can’t say for sure.

Hopefully someone with M96 engine tear down experience will have an idea.

78F350 · 07-27-2019, 11:00 AM

Here's a pic of the big chain ramps that lead up to the heads. Note that the cracks can often form at a sharp right angle. Color is dark brown, not black.

Here's the chain guides on the cam chain adjuster. I don't think the fragments are from these.

I have a partially disassembled engine if anyone has a suggestion of another part to look at.

particlewave · 07-27-2019, 11:50 AM

Quote:

Originally Posted by 78F350

I have a partially disassembled engine if anyone has a suggestion of another part to look at.

It’s hard to tell from the OP pics, but notice he has one on its edge so you can see the “s” curve that each piece has (if you look closely, you can see the curve in the others, as well).

How do the scavenger pumps work? I seriously doubt that they have plastic vanes, but just an idea.

911monty · 07-27-2019, 12:12 PM

Anything in the oil filter first has to get picked up from the sump, pass thru the oil pump pickup screen then get macerated thru the oil pump, not much chance of that happening with pieces that large. What type filter housing are you running?

Franco · 07-27-2019, 12:51 PM

Quote:

Originally Posted by 911monty

Anything in the oil filter first has to get picked up from the sump, pass thru the oil pump pickup screen then get macerated thru the oil pump, not much chance of that happening with pieces that large. What type filter housing are you running?

Hi, this is the housing on my Boxster.

Thanks

steved0x · 07-27-2019, 12:24 PM

I had a piece in my used oil that even had a partial part number. The only match was the oil pickup tube. Ultimately I finally figured it was a piece off the oil filter end cap that broke off when I was cutting the ends to unroll it and fell down into the pleats. So depending on the mechanism you used to unroll the pleats to examine them, maybe it is a piece broken off in that process?

particlewave · 07-27-2019, 01:25 PM

Nice detective work!

I checked my old canister and it doesn’t have those.

NewArt · 07-27-2019, 06:06 PM

And I didn’t know that. And Ive torn apart a few of these engines. As P-wave said, good sleuthing! I use the spin-on filter so I don’t have these.

BFeller · 07-27-2019, 06:13 PM

If you need a new filter housing, I might have one you can have gratis. I upgraded to the a spin on filter housing. I can check in a few days. I would gladly pass it on.

Geof3 · 07-27-2019, 10:50 PM

Another thing to note, is all of those pieces are the exact same size and shape. Can’t believe they went through the entire oil system and wound up like that. Time to drop your oil pan as well. See if you have anything else in there.

NewArt · 07-28-2019, 05:09 AM

So my wife is right, I need to read things more carefully. Oil filter housing. Huh. I saw oil pan and assumed something else. Chain rail parts wouldn’t likely be found in the oil filter housing! Sorry for misleading you at first.