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A very small amount of oil weeping onto something hot, manifold, turbo etc can give off considerable smell with little smoke. What's the miles? When was the last service? What condition is the engine? Worn engine can give pressure in engine forcing oil fumes/vapour out of breathers onto hot surfaces which then enter car ventilation system.
Hi Lee, There are two oil pressure relief valves on most vehicles. One is fitted onto the oil pump assembly and another onto the oil filter housing assembly. The oil pump pressure relief valve is located at the front of the engine and is accessed via a blind nut on the side of the unit. The bolt is in the form of a cap, which when removed can be seen to be holding down under tension a spring, which in turn presses the valve. If the pressure becomes too high the valve body is pushed upwards and releases an amount of oil, thereby maintaining the required pressure. The valve built into the oil filter housing works in much the same way, but its job is to allow oil circulation in the event of a blocked oil filter. regards John
The oil filter is a can shaped object that is screwed into the side of the engine. You need an oil filter removal tool that wraps a strap around the oil filter so you can unscrew the oil filter in an anti-clockwise direction. When the oil filter is loosened you will get some oil spillage. When you replace the oil filter, apply a little fresh oil on the rubber o-ring seal before you screw the oil filter back onto the engine. Do not over tighten the oil filter as you can damage the o-ring seal and cause the oil to leak out of the engine when the engine is running. After installing the new oil filter I suggest you start the engine and let it run until the engine warms up, then check the oil filter to see if there is any oil leaks from the oil filter (between the engine and the oil filter). If it leaks and you have not tighened the oil filter enough then screw the filter a little tighter/
Check that the oil filter if firmly screwed onto the engine. If not then drain the oil, undo the oil filter. Wipe the surface of the oil filter connector on the engine so its clean. Get a new oil filter and smear a small amount of oil on the rubber seal. Screw the filter into place making sure it is a tight seal. Re-fill the engine with the right amount of oil. You should be good to go. Check that the oil leak is coming from the filter before you start as it could be something more serious eleswhere like the head.
my car was doing the exact same thing and i spent about 18 hrs total trying to figure out. if you remove the oil filter, you will notice that the "bracket" that the oil filter attaches to is removable. remove the ENTIRE oil filter assembly. there is a bolt almost behind the crank pulley, its tricky to get to but you can get to it with a 1/4 in drive, swivel, and extension, i do believe it was a 10-12 mm socket (MUST BE ^POINT SHORT WELL) the top left bolt on the assembly you will notice that you can not get out. that is fine, take the rest of the bolts out and let the assembly hang from that bolt, BUT the bolt must me loosend all of the way to achive play in it. take a small screw driver and "break" the seal on the assembly. you will notice 2 holes. around those two holes is a single gasket. even the smallest crack will aloow oil to drip. my car was using about a gallon of oil every ten miles, so you can imagine how much oil i when through, replace the gasket. You can not get the rubber gasket ANYWHERE except a honda dealer. replace. put it together and you all set.
BASIC STEPS: RAISE PASSENGER SIDE.
REMOVE OIL FILTER
AND REPEAT BACKWARDS FOR INSTALLATION
The stud that the oil filter screws onto holds the filter housing to the engine and there is an O ring between the housing and engine that leaks and is common on honda's. Removing the oil filter and then the stud will release the housing and can replace O ring which cost about six dollars at dealer.