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I have an '84 Blazer 4x4 with the 2.8 engine and it's developed an oil leak, but we're not sure where it's coming from.
A few months back I changed the oil for the first time (it's a winter beater and I haven't owned it that long) and had to really twist hard to remove the oil filter. At this time there was no leak. After refilling the crankcase and starting the engine, a noticeable amount of oil started dripping onto the driveway. Since the Blazer was also down with bad brakes at this time I made a note of it but didn't do anything about it.
Yesterday we tried to find the leak. We removed the old filter and all signs pointed to a proper installation - no old gasket left behind, no overtightening leading to gasket distortion, etc. We installed a new filter (once tightened normally and once tightened only by hand) and the leak was still there. After looking closely the leak appears to becoming from either the back side of the filter adapter or behind it, at about the 9:30 to 10:00 position when the filter is viewed head-on through the wheelwell.
Any ideas? The threaded hollow stud that the filter attaches to seems tight, but is it possible that when I had to really work hard to remove the old filter I somehow loosened it and oil's getting past it? I have no idea what the adapter actually looks like so this may be a meaningless question. How difficult is it to get at the adapter with the engine in the truck? It looks like the crossmember and engine mount but interfere.
Any help would be greatly appreciated. Thanks!
Brad
A few months back I changed the oil for the first time (it's a winter beater and I haven't owned it that long) and had to really twist hard to remove the oil filter. At this time there was no leak. After refilling the crankcase and starting the engine, a noticeable amount of oil started dripping onto the driveway. Since the Blazer was also down with bad brakes at this time I made a note of it but didn't do anything about it.
Yesterday we tried to find the leak. We removed the old filter and all signs pointed to a proper installation - no old gasket left behind, no overtightening leading to gasket distortion, etc. We installed a new filter (once tightened normally and once tightened only by hand) and the leak was still there. After looking closely the leak appears to becoming from either the back side of the filter adapter or behind it, at about the 9:30 to 10:00 position when the filter is viewed head-on through the wheelwell.
Any ideas? The threaded hollow stud that the filter attaches to seems tight, but is it possible that when I had to really work hard to remove the old filter I somehow loosened it and oil's getting past it? I have no idea what the adapter actually looks like so this may be a meaningless question. How difficult is it to get at the adapter with the engine in the truck? It looks like the crossmember and engine mount but interfere.
Any help would be greatly appreciated. Thanks!
Brad
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