Oil Leak - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

j_ros94 · 12-12-2019, 06:29 PM

So im having an oil leak after 7 months of boosting. I took it to a mechanic and he said i have too much 90 degrees on my oil line which could cause the leak to come out. Anyone else have this issue? If so, any advice?

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BertoFT · 12-12-2019, 07:27 PM

Pics? Is your car a manual?

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j_ros94 · 12-12-2019, 07:34 PM

Quote:

Originally Posted by BertoFT

Pics? Is your car a manual?

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Yeah manual. Didnt get a chance to take a pic

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BertoFT · 12-12-2019, 08:13 PM

No pics, so just guessing here:

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j_ros94 · 12-12-2019, 08:33 PM

Quote:

Originally Posted by BertoFT

No pics, so just guessing here:

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This could be it. Gotta check again in the morning

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DarkPira7e · 12-12-2019, 09:03 PM

What the technician was inferring was that with too many 90 degree bends, you're adding pressure points on those fittings. The leak is probably from one of the fittings. Otherwise, an oil leak is a result of something having a hole, not being tight, or gasket material missing; it has nothing to do with your car being boosted.

Just find the source of the leak and have it fixed

Decep · 12-13-2019, 12:23 AM

i would have them put a UV dye in the crankcase so at least they're not guessing

j_ros94 · 12-13-2019, 08:55 AM

Quote:

Originally Posted by DarkPira7e

What the technician was inferring was that with too many 90 degree bends, you're adding pressure points on those fittings. The leak is probably from one of the fittings. Otherwise, an oil leak is a result of something having a hole, not being tight, or gasket material missing; it has nothing to do with your car being boosted.

Just find the source of the leak and have it fixed

Oh that makes sense Ill have it looked at and everything. Tech speculated since im boosted it starts leaking from one of those fittings when hitting boost.

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DarkPira7e · 12-13-2019, 09:29 AM

Quote:

Originally Posted by j_ros94

Oh that makes sense Ill have it looked at and everything. Tech speculated since im boosted it starts leaking from one of those fittings when hitting boost.

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Unless your forced induction is supplying forced air into your oil, this doesn't make sense. Oil pressure is driven by RPM (it's just a manual gear driven pump) so the WAY your car makes power doesn't affect oil pressure. I would

the tech and bring it elsewhere for review if they're really suggesting that.
The only place boost would force oil past are the PCV and crankcase. Those would leak internally though, not at a fitting.

tomm.brz · 12-13-2019, 09:31 AM

a stock PCV can leak and boost can go inside crankcase actually.... guess what's inside the crankcase?
Usually it's adviced to use a WRX PCV or a oneway check valve between the PCV and the intake manifold

j_ros94 · 12-13-2019, 09:31 AM

Quote:

Originally Posted by DarkPira7e

Unless your forced induction is supplying forced air into your oil, this doesn't make sense. Oil pressure is driven by RPM (it's just a manual gear driven pump) so the WAY your car makes power doesn't affect oil pressure. I would

the tech and bring it elsewhere for review if they're really suggesting that.

Lol thats what i said but not really sure and then when the tech said something else it made me doubt what i knew lol

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j_ros94 · 12-19-2019, 06:26 PM

Update on my oil leak. It was coming from the oil pressure switch. Anyone wanna chime in to see if its an expensive cost or could easily be fixed at home kind of thing

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Halo_2 · 12-20-2019, 07:41 AM

tomm.brz · 12-20-2019, 08:27 AM

Quote:

Originally Posted by j_ros94

Update on my oil leak. It was coming from the oil pressure switch. Anyone wanna chime in to see if its an expensive cost or could easily be fixed at home kind of thing

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Do not even try to fix it, a new oil pressure switch is about 10 dollars from Toyota

12-12-2019, 06:29 PM	#1
j_ros94 Senior Member Join Date: May 2019 Drives: 2017 Subaru BRZ Location: Toronto, Ontario Posts: 145 Thanks: 46 Thanked 22 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Oil Leak So im having an oil leak after 7 months of boosting. I took it to a mechanic and he said i have too much 90 degrees on my oil line which could cause the leak to come out. Anyone else have this issue? If so, any advice? Sent from my SM-G960W using Tapatalk

12-13-2019, 12:23 AM	#7
Decep Senior Member Join Date: May 2017 Drives: 2013 FR-S Series 10 Location: CA Posts: 1,073 Thanks: 172 Thanked 497 Times in 326 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	i would have them put a UV dye in the crankcase so at least they're not guessing __________________ 2013 FR-S 10 Series ~75k (SOLD) RCE SS-1 Coilovers Corsa Catback Edelbrock Supercharger installed @ 50k

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12-12-2019, 07:27 PM	#2
BertoFT Member Join Date: Mar 2016 Drives: 13 FRS Firestorm Location: SC Posts: 53 Thanks: 28 Thanked 20 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Pics? Is your car a manual? Sent from my SM-G9600 using Tapatalk

12-12-2019, 08:13 PM	#4
BertoFT Member Join Date: Mar 2016 Drives: 13 FRS Firestorm Location: SC Posts: 53 Thanks: 28 Thanked 20 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	No pics, so just guessing here: Sent from my SM-G9600 using Tapatalk

12-12-2019, 09:03 PM	#6
DarkPira7e Rust bucket enthusiast Join Date: Feb 2017 Drives: 2013 Turbo Firestorm FRS Location: Vermont Posts: 3,933 Thanks: 3,200 Thanked 4,095 Times in 2,045 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	What the technician was inferring was that with too many 90 degree bends, you're adding pressure points on those fittings. The leak is probably from one of the fittings. Otherwise, an oil leak is a result of something having a hole, not being tight, or gasket material missing; it has nothing to do with your car being boosted. Just find the source of the leak and have it fixed

12-13-2019, 09:31 AM	#10
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,196 Thanks: 500 Thanked 1,067 Times in 775 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	a stock PCV can leak and boost can go inside crankcase actually.... guess what's inside the crankcase? Usually it's adviced to use a WRX PCV or a oneway check valve between the PCV and the intake manifold

12-19-2019, 06:26 PM	#12
j_ros94 Senior Member Join Date: May 2019 Drives: 2017 Subaru BRZ Location: Toronto, Ontario Posts: 145 Thanks: 46 Thanked 22 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Update on my oil leak. It was coming from the oil pressure switch. Anyone wanna chime in to see if its an expensive cost or could easily be fixed at home kind of thing Sent from my SM-G960W using Tapatalk

12-20-2019, 07:41 AM	#13
Halo_2 Senior Member Join Date: Jul 2019 Drives: 2014 MY15 86 GTS Location: Australia Posts: 100 Thanks: 29 Thanked 39 Times in 17 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)

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