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dazed and confused
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Weeping lower valve covers
Before I reinstall rebuilt alternator and cleaned-up fan assembly, wondering if others have seen similar leakage and what was the culprit? Oil return tubes look to be clean. Bracing myself here for broken studs....
Driver's side underneath:  Driver's side topside: Oily black around Cyl 2 intake port  Passenger side topside: Oily black around cyl 4 & 5 intake ports  Passenger side underneath: 
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89 Carrera 3.2 Targa 2011 BMW 335d 2013 BMW X3 3.5 80 911 SC Weissach Coupe (Sold) 
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03-11-2012, 04:59 PM
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Mo money = mo parts
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The "drivers side valve cover" photo appears to be return tubes to me. Most of the oil comes out of the cam tower and straight down, not on the return tubes. Often looks like weeping valve covers when it's not. Get the green viton seals to go with the collapsable tubes. Pull off the bottom valve covers to check the head studs, that is where they break.
You may want to re-torque your intakes, assuming the engine has been apart, it probably isn't anything to be concerned about.
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Greg 86 Coupe (stock - pretty much like Butzi designed it) - gone, but not forgotten 65 Ducati Monza 250 & 66 Monza Junior (project) "if you are lucky enough to own a Porsche, you are lucky enough" |
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03-11-2012, 05:45 PM
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Registered
Join Date: Dec 2004
Location: Montgomery, AL
Posts: 689
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Next time you adjust the valves, take the valve covers and lay them on a plate of glass to see if they are warped. Very common. Upgrade to turbo valve covers.
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Steve B. 1972 911t 1999 328is |
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03-12-2012, 04:49 AM
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I agree with Greg. Top side looks like dust collecting. I would remove the valve covers to inspect the studs. Try using a torque wrench on each nut to be certain they're not loose or ready to break. Sometimes the top covers warp and leak down through the cam box. I would remove all covers, check the head nuts first, valve adjustment, use a straight edge to check covers for warping, clean everything and reassemble. Use the gasket kit with the silicone bead on the lower gaskets. Lose the catalytic convertor.
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1974 sahara beige 911 targa 1982 chiffon 911sc 1985 prussian blue metallic carrera |
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03-12-2012, 04:54 AM
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Join Date: Apr 2010
Location: New Orleans, LA
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he already has them. I would clean the oil up with a degreaser or steam, drive it a little, and see if you can tell where the leak is coming from.
Quote:
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1982 911SC, Mocal oil cooler, Bilsteins, Carrera tensioners, backdated heat, factory short shift, Seine gate shift, turbo tie rods, pop off. 2005 Mercedes-Benz C230 kompressor sport 6-speed (daily driver) |
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03-12-2012, 05:47 AM
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Mo money = mo parts
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Quote:
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Greg 86 Coupe (stock - pretty much like Butzi designed it) - gone, but not forgotten 65 Ducati Monza 250 & 66 Monza Junior (project) "if you are lucky enough to own a Porsche, you are lucky enough" |
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03-12-2012, 09:24 AM
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change your valve cover gaskets..dont overtorque the nuts. looks likes plain jane valve cover gasket leak to me.
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poof! gone |
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03-12-2012, 11:46 AM
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Could be rocker shafts leaking and coming down through the cam boxes. This is happening to me right now...
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Jonathon 1982 911 SC www.avrmotorsports.com |
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03-12-2012, 02:24 PM
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dazed and confused
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Thanks everyone.
The bolts on the intakes with blackened areas definitely needed snugging up, along with all the valve cover bolts...couldn't get a torque wrench in there so just snugged them up...6 ft-lbs! Will degrease and see if this solved it...and yes kodioneill, I will lose that catalytic soon! Thanks John
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89 Carrera 3.2 Targa 2011 BMW 335d 2013 BMW X3 3.5 80 911 SC Weissach Coupe (Sold)
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03-17-2012, 05:49 PM
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"LC"
1986 Porsche 911
1974 Porsche 911 targa 2.7
1982 Porsche 911 SC
