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#1
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oil collecting on top of motor
hey guys i have some oil that’s collecting on top of the motor between the intake manifold and motor and leaking down the back side on the driver’s side,
i don’t think its a critical issue but i would like to solve it or find were its coming from both valve cover gaskets were replace by the previous owner and are dry as a whistle ! also the power steering pump is dry as a whistle also ! nothing around the oil dipstick or goose neck filler either seems to be more on the driver’s side then anything im guessing its the pcv valve? is there any external oil lines on the top part of the engine ? any sugestions or ideas ?or pretty much bite the bullet and pull of the intake manifold im guessing ? thanks guys
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2008 evo x with sss package 430 hp 380 torque stock turbo with basic bolt ons 12.56 @ 109 fully weighted 3,500 lbs |
#2
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Re: oil collecting on top of motor
That seems to be a common-ish SVX issue. Oil collects in the intake manifold and then drips out from the IRIS valve in the center. Replacing your PCV valve may help to fix the issue, but don't expect it to stop instantly (oil will continue to drip until it's all gone from the intake).
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#3
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Re: oil collecting on top of motor
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im going to clean thar area up and see how bad it is or how long it takes to puddle up again never had this on any of my 3 other svxes so i guess it makes the odds of 1 inn 4 LOL
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2008 evo x with sss package 430 hp 380 torque stock turbo with basic bolt ons 12.56 @ 109 fully weighted 3,500 lbs |
#4
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Re: oil collecting on top of motor
I have this same problem with my 92. I was thinking of taking off the Intake manifold to see what's going on but I know that's a bit of work. Please post anything that you might find and I'll do same. Good luck
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#5
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Re: oil collecting on top of motor
I had oil on top of my motor. I took off the intake and it was all oiled up, and the oil was dripping out of it. I cleaned up the mess, replaced the PCV and all the vacuum hoses, plus replaced the knock sensors while I was in there. I haven't driven the car a lot since then but have not noticed any oil.
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1995 Caterham 7 Twincam 2002 Porsche 911 targa -- now with FSI 4.0L power! 2007 BMW 328i Cabriolet 2012 Tacoma 4wd v6 Access Cab 2013 Mercedes E350 4Matic Wagon 2005 STi - totaled after 10 great years 1994 SVX LSi 5spd - sold but not forgotten 2000 Legacy GT 5spd sedan - gone after 150K miles of bliss |
#6
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Re: oil collecting on top of motor
Are you sure it's oil? as the PS tank is prone to leak onto the top of the motor...
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Huck Subaru Ambassador 92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD 88 XT6 AWD 5-Speed "Bride of FrankenWedge" 15 Impreza Premium Sedan 15 Crosstrek XV 5-Speed My 5-Speed "How-To" Write-up 1976 Pontiac Firebird Formula Current Count of Subaru's Owned.... "70" |
#7
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My manifold leaked oil, which was cured when my IRIS/some part of the manifold was replaced/operated on.
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"That which can be asserted without evidence can be dismissed without evidence." '92 Dark Teal SVX LS-L, >146,000m 3 pedals, 5 speeds., restoration underway. 2012 Honda Insight, slow but cute. |
#8
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Re: oil collecting on top of motor
The oil collects down where the IRIS butterfly is. It leaks out of the shaft ends.
The question is where does all this oil come from. No brainier, out of the crankcase breathers, both the PCV, that can be blocking, forcing it into the air delivery pipe. Or the cam cover breathers, that block inside of the air box in front of the throttle bodies. This then forces all the crankcase gas up the inlet air pipe. So it ends up collecting in places like the IRIS, Idle Air Valve, and the Auxiliary Air Valve, the last one, makes it blow smoke on start-up. Fix, clean all the cam breather passages, renew the PCV valve. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#9
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Was just looking through my service history, and I remember the oil pressure switch leaked like CrAzAy, so crazy, I had to type it out like that to emphasize the craziness.
It's between the PS pump and alternator. Check it out.
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"That which can be asserted without evidence can be dismissed without evidence." '92 Dark Teal SVX LS-L, >146,000m 3 pedals, 5 speeds., restoration underway. 2012 Honda Insight, slow but cute. |
#10
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Re: oil collecting on top of motor
Quote:
The part # is 25240KA040.
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www.svxfiles.com The first SuperCharged SVX, the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link |
#11
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Re: oil collecting on top of motor
thanks for the information guys with your guys help i narrowed it down to the iris valve area and its a common issue
i just havent had time to take it apart looks like its and extensive job every day i have a small puddle on the right side of the car area "its not from the valve covers " if i get a flash light i can see the area where it is leaking, can you just buy the o ring itself for the iris valve? or do you use hi temp rtv to re-seal it ? or is there another o ring where the center shaft is for the butterflies are inside the IRIS ? i still have to find the root of the problem i was thinking of going ahead and replacing the pcv valve first but it was done from the previous owner and blowing all the lines out, there is no oil around the oil pressure senser and none by the power steering pump area again thanks for all your help
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2008 evo x with sss package 430 hp 380 torque stock turbo with basic bolt ons 12.56 @ 109 fully weighted 3,500 lbs |
#12
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Re: oil collecting on top of motor
I wonder if an external oil catch can would help with the oil issue. Not sure if that would affect anything detrimentally or not!
I have the same puddle on top of the engien and my IRIS valve gasket/seal was renewed couple of years ago when I did all seals and hoses. Guess, i'll need to revisit it again
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If it ain't broken it, doesn't have enough features!!! '92 SVX LSL '03 4Runner '96 FZJ80 Landcruiser '90 Mercedes 300E |
#13
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Re: oil collecting on top of motor
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1994 SVX L - FWD Barcelona Red 190K miles ~ SOLD 1994 SVX LS - 5spd AWD Emerald Green 202k miles PWR Radiator, HID 5000k, New paint job with issues, 17" STI BBS wheels, converted to 5spd AWD from FWD. Purchased from SVXyGirl 2/20/09 -- Undergoing complete rebuild 1993 Justy 4wd 5door- Teal of sorts , beater. 2008 OBXT Newport Pearl 65k miles |
#14
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Re: oil collecting on top of motor
Out of curiousity, are you guys using synthetic oil? Since this thread I've noticed a significant amount of oil buildup in the same areas. I use Amsoil. I've always heard that going from conventional to synthetic would cause leaks, this may be the extreme result. If this is true, the effect may be compounded by the age of the hoses and gaskets...just a thought.
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#15
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Re: oil collecting on top of motor
+1 for the amsoil (i love that stuff) I just put new gaskets and seals on my spare engine and didn't notice there being a puddle there but it was setting for a while before I replaced everything. I will look at my daily driver to see if it having a similar issue. If so I can reference this post to fix it.
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2003 Baja Sport 1994 SVX LS 1992 SVX LSi parted out |
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