Oil residue on underbody. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jiffyjhn · 08-29-2020, 03:13 AM

I was changing my oil today and snapped some pictures of the underbody where I see some oil residue. It’s close to the oil pan at the front close to the driver side. I noticed this a few months ago when I was installing aftermarket headers as well. It seems to come out of the driver side of the engine block, where top and bottom of the engine block are held together. There is some oil residue on the metal covering piece below the oil pan as well.
I drive the car quite hard but keep up with the maintenance as well. Anything to be concerned about?

alex87f · 08-29-2020, 08:17 AM

Timing chain cover ?

DarkPira7e · 08-29-2020, 09:36 AM

Probably your valve cover or timing cover. Could be several things- if you drop your engine shield it's probably full of oil. I'd take it somewhere to get it looked at

kevtronzero · 08-29-2020, 11:34 AM

Probably cam carrier leaking.

ls1ac · 08-29-2020, 11:49 AM

If it really bothers you, pull the shields clean well. Go to auto store barrow UV oil leak kit. Add the small vial of marker fluid and use the UV light and glasses to find the leak. It will work without cleaning but, well it shows better when clean.

NoHaveMSG · 08-29-2020, 12:40 PM

Clean off and check AVCS solenoids. They are sealed with an o-ring. Mine leaked there.

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jiffyjhn · 08-29-2020, 12:50 PM

Quote:

Originally Posted by DarkPira7e

Probably your valve cover or timing cover. Could be several things- if you drop your engine shield it's probably full of oil. I'd take it somewhere to get it looked at

Do you mean the oil pan shield(the big metal piece on the bottom)? I dropped that and it has oil on the side facing up but it wasn’t a lot. There is a thin layer with dirt stuck to it. I have some pictures from before when I was changing headers.

soundman98 · 08-29-2020, 02:17 PM

that looks like you drove through something! there's no air-to-oil cooler on these cars stock, so there's nothing forward of the belt assembly to oil those components!

Grady · 08-29-2020, 02:53 PM

Im I the only one that cleans their engine almost every oil change?

Breadman · 08-29-2020, 11:34 PM

this is the exact same leak as i have and my uv dye comes in tomorrow. im pretty sure it is the chain cover

soundman98 · 08-29-2020, 11:34 PM

Quote:

Originally Posted by Grady

Im I the only one that cleans their engine almost every oil change?

what's an oil change?

NoHaveMSG · 08-30-2020, 12:47 AM

This was mine. It was the AVACs solenoid on exhaust driver side.

jiffyjhn · 08-30-2020, 01:34 AM

Quote:

Originally Posted by NoHaveMSG

This was mine. It was the AVACs solenoid on exhaust driver side.

That looks similar. What did u do to fix it, replace o-ring?

jiffyjhn · 08-30-2020, 01:36 AM

Quote:

Originally Posted by Breadman

this is the exact same leak as i have and my uv dye comes in tomorrow. im pretty sure it is the chain cover

Would be cool if u can update what u find out from the dye. Thanks!

08-29-2020, 03:13 AM	#1
jiffyjhn Member Join Date: Aug 2013 Drives: White FR-S kosei k4r 17x8 Location: Ontario, Canada Posts: 47 Thanks: 14 Thanked 26 Times in 15 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Oil residue on underbody. I was changing my oil today and snapped some pictures of the underbody where I see some oil residue. It’s close to the oil pan at the front close to the driver side. I noticed this a few months ago when I was installing aftermarket headers as well. It seems to come out of the driver side of the engine block, where top and bottom of the engine block are held together. There is some oil residue on the metal covering piece below the oil pan as well. I drive the car quite hard but keep up with the maintenance as well. Anything to be concerned about? Attached Images

08-29-2020, 02:17 PM	#8
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,673 Times in 6,781 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	that looks like you drove through something! there's no air-to-oil cooler on these cars stock, so there's nothing forward of the belt assembly to oil those components! __________________ "The time you enjoy wasting is not wasted time"

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08-29-2020, 08:17 AM	#2
alex87f Meow Join Date: Aug 2017 Drives: GT86, Volvo 996 Location: France Posts: 532 Thanks: 314 Thanked 444 Times in 236 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Timing chain cover ?

08-29-2020, 09:36 AM	#3
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,932 Thanks: 3,199 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Probably your valve cover or timing cover. Could be several things- if you drop your engine shield it's probably full of oil. I'd take it somewhere to get it looked at

08-29-2020, 11:34 AM	#4
kevtronzero Member Join Date: Jun 2014 Drives: 2013 Subaru BRZ / 2011 Lexus ISF Location: San Jose, CA Posts: 15 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Probably cam carrier leaking.

08-29-2020, 11:34 PM	#10
Breadman Senior Member Join Date: Jul 2017 Drives: 2017 BRZ w/PP Location: Pa Posts: 1,027 Thanks: 51 Thanked 302 Times in 225 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	this is the exact same leak as i have and my uv dye comes in tomorrow. im pretty sure it is the chain cover

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