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Showing results for tags 'oil leak'.
Found 2 results
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Hey All, Still working out numerous kinks as a noob on my 76 280z (w/ 77 motor). Latest project has been to wipe the bottom clean and watch for drips and fix so my garage doesn't always smell like fuel/oil. Among a couple various leaks, one that really has me scratching my head is a leak at the oil pump - where the gold color bolt is in line with the regulator spring (from what I understand from diagrams). Most forums related talk about leaks at the gasket/seal; I looked and looked and its dry above this bolt. There's always a drop of oil hanging off of that bolt, and apparently it has leaked for so long that it has coated most of the front end and drips down near my passenger wheel. I've cleaned this area up twice now and checked it the next morning and sure enough the front end it wet with oil and there's a drip hanging off that bolt. See the pic for the drop and you can see it drips down onto the front end below. Has anyone experienced this? It is a new oil pump installed 80 miles ago, and from my knowledge that bolt never gets messed with (I haven't at least). I think too much time has passed to get any help from the manufacturer on this. Being new to working on cars, if anyone can think of a no-brainer that I could be missing to resolve this I would appreciate it. I don't want to replace the oil pump again, especially with it in the car (wouldn't know where to start). Just for supporting info, the car runs and drives (has little quirks that still need fixing like climbing idle as it warms, etc), but oil pressure seems fine. Thanks in advance!
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Hello all, I'm having a frustrating problem and I wanted to get some opinions. I've searched quite a bit but haven't found anything that either I haven't tried or was relevant. That back story: I have a built 3.1L stroker (not done on the cheap) with E31 head running somewhere north of 11:1 compression. The most runs well with good compression across all cylinders. The head has had a sigfnificant amount of work done. Another piece of infromation is that it has a timesert in sparkplug hole number 3 due to an issue with the head that predates me. I'm running triple webers and Electromotive HPX ignition. I AM running PCV, as using advice from Tony D I created a vacuum log with a restrictor on one end for the PCV valve (mounted to a grommet which is mounted where the pipe once was all pressure fit). So I THINK I'm exacuating pressure from the crankcase. I have no other leaks that I know of. Engine mileage is 1200. Onto the issue: Symptom #1: On cylinder number 3, I have a small amount of oil coming out of the spark plug hole while the engine runs. As I drive, it slowly works it's way down the side of the block and makes a mess of things. Symptom #2: When the engine starts after sitting for more than a few hours, I get a greyish smoke while I idle. Once I drive off into the sunset, the smoke dies off and doesn't reappear until the car has been off for several hours. Things I have checked: Valve Cover Gasket - it doesn't leak and the oil clearly originates from the spark plug hole. Spark Plug Torque: It's well torqued, but even it if it wasn't, you would expect something other than oil to escape. Valve Seals - I replaced them last night and the problem persists. Ignition - the plug is firing correctly, so I wouldn't think it's unspent fuel coming out. I'm not running overly rich either, 12.5 at idle. 13ish -.13.8 at WOT on the idle/progression circuits and 13.0ish on the main circuit. And now on to what's left for my theories: Head cracked - Lord, I hope not. Oil passage nicked - Along the above lines, do the oil passages run anywhere close to the spark plug holes that a timesert may have affected. Oil passage nicked - I assume there is way too much metal in the combustion chamber that the machine shop doing the head work could have gotten close to oil passages? Bad oil control rings - If I had a bad oil control ring, would I not be BURNING oil consistently rather than for a few moments at startup (aka like when you have bad valve stem seals)? Also, would it be possible for oil to find it's way all the way up the cylinder wall and out a spark plug hole? Bad head gasket - I have an HKS 1mm head gasket on now. The problem existed with an HKS 2mm head gasket as well. Using ARP studs torqued to spec. Of all those, I would prefer one of the last two to be the case even though I don't relish pulling the engine anytime soon. The oil comes out clean with no antifreeze or anything else in it when drained. The antifreeze looks good. Thanks, Brett (this is crossposted over at classiczcars.com as well)
