Smallblock V8 Oiling
IF THE IMAGE IS TOO SMALL, click it.
Oil is lifted from the pan (sky blue) through the pickup screen & tube into the pump (dark red) which pushes the oil through the filter. The clean high-pressure oil (red) flows past the pressure port at the LHF of the block to the main galley along the RHS, which feeds the main & camshaft bearings (teal green) & rod bearings via the crankshaft (pink), and the crossover at the back of the block. The crossover supplies each lifter galley. As each lifter (HLA) reaches the bottom of its cam lobe, its bleed hole is exposed to the main galley's high-pressure oil, which fills it (with the help of the internal spring) to adjust out all the lash from that rocker. As the lobe raises the HLA, its bleed hole is blocked, maintaining that adjustment for that stroke. Leakage from each lifter flows up the pushrod to spill onto each rocker & valve guide. Spillage from the camshaft flows over the timing chain at low pressure. NOT SHOWN: some of the pressurized oil from the front cam bearing lubes the distributor bearings. Splash from the cam lobes lubes the distributor gear.
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SSM# 19462 OASIS MESSAGE :
SOME 1997-2007 E150/F150, 1997-2007 CROWN VIC./GRAND MARQUIS/TOWN CAR, 1997-2004 MUSTANG GT, 1997-1998 T-BIRD/COUGAR AND 2002-2005 EXPLORER/MOUNTAINEER WITH 4.6L 2V ENGINE MAY EXPERIENCE AN ENGINE TICKING OR RATTLE NOISE THAT SOUNDS LIKE A STUCK TAPPET (HLA). THIS MAY BE DUE TO THE DETERIORATION OF AN AFTERMARKET OIL FILTER. VEHICLES WITH THIS CONDITION HAVE LOW OIL PRESSURE AT ONE CYLINDER HEAD ONLY, WHILE MAIN PRESSURES ARE NORMAL. DISLODGED MATERIAL FROM THE AFTERMARKET OIL FILTER BLOCKS THE CAM CAP OIL PASSAGE, EITHER AT CYLINDER #4 (RIGHT BANK REAR) OR CYLINDER #5 (LEFT BANK FRONT). FORD RECOMMENDS THE USE OF FORD APPROVED FILTERS ONLY. DAMAGE TO ENGINES CAUSED BY AFTERMARKET OIL FILTERS ARE NOT COVERED UNDER WARRANTY.
![smallblockoiling.jpg Smallblock V8 Oiling
IF THE IMAGE IS TOO SMALL, click it.
Oil is lifted from the pan (sky blue) through the pickup screen & tube into the pump (dark red) which pushes the oil through the filter. The clean high-pressure oil (red) flows past the pressure port at the LHF of the block to the main galley along the RHS, which feeds the main & camshaft bearings (teal green) & rod bearings via the crankshaft (pink), and the crossover at the back of the block. The crossover supplies each lifter galley. As each lifter (HLA) reaches the bottom of its cam lobe, its bleed hole is exposed to the main galley's high-pressure oil, which fills it (with the help of the internal spring) to adjust out all the lash from that rocker. As the lobe raises the HLA, its bleed hole is blocked, maintaining that adjustment for that stroke. Leakage from each lifter flows up the pushrod to spill onto each rocker & valve guide. Spillage from the camshaft flows over the timing chain at low pressure. NOT SHOWN: some of the pressurized oil from the front cam bearing lubes the distributor bearings. Splash from the cam lobes lubes the distributor gear.
[url=https://www.supermotors.net/registry/media/258880][img]https://www.supermotors.net/getfile/258880/thumbnail/oil-temp-range.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1129211][img]https://www.supermotors.net/getfile/1129211/thumbnail/oilfilterfl1a.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/71808][img]https://www.supermotors.net/getfile/71808/thumbnail/oil-cooler.jpg[/img][/url]
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SSM# 19462 OASIS MESSAGE :
SOME 1997-2007 E150/F150, 1997-2007 CROWN VIC./GRAND MARQUIS/TOWN CAR, 1997-2004 MUSTANG GT, 1997-1998 T-BIRD/COUGAR AND 2002-2005 EXPLORER/MOUNTAINEER WITH 4.6L 2V ENGINE MAY EXPERIENCE AN ENGINE TICKING OR RATTLE NOISE THAT SOUNDS LIKE A STUCK TAPPET (HLA). THIS MAY BE DUE TO THE DETERIORATION OF AN AFTERMARKET OIL FILTER. VEHICLES WITH THIS CONDITION HAVE LOW OIL PRESSURE AT ONE CYLINDER HEAD ONLY, WHILE MAIN PRESSURES ARE NORMAL. DISLODGED MATERIAL FROM THE AFTERMARKET OIL FILTER BLOCKS THE CAM CAP OIL PASSAGE, EITHER AT CYLINDER #4 (RIGHT BANK REAR) OR CYLINDER #5 (LEFT BANK FRONT). FORD RECOMMENDS THE USE OF FORD APPROVED FILTERS ONLY. DAMAGE TO ENGINES CAUSED BY AFTERMARKET OIL FILTERS ARE NOT COVERED UNDER WARRANTY.](https://www.supermotors.net/getfile/1130518/fullsize/smallblockoiling.jpg)