This depends on the car, make Model, year and engine type.
Usually this is a snake pit of trouble
The gasket or O ring will normally not fail unless the parts are warped or cracked, but the customer wants to know up front what it will cost.
Most service people quote the job at gasket change price, this causes the customer to feel he has been ripped off when the true cost of the repair is billed.
Replace the gasket with a new one.
This may or may not be the solution for you, but check this out for starters. Some oil filter gaskets are not well bonded to the filter, and as a result, when you remove an old filter, sometimes the old gasket will stick to the engine. If you don't notice, and install a new filter while the old gasket is still stuck there, the new filter will not seal properly and you will have a serious leak. If this turns out to be the case for you, simply remove the old gasket, inspect, and reinstall the new filter with its own gasket. If the filter's gasket looks damaged, or deformed in any way, you're best off buying and installing a new filter. (My personal opinion and advice: don't waste your money on cheapie filters, they're not worth it. Stick with a brand name you trust)
Here are a few reasons for oil to spray from the filter area:The gasket from the old filter was stuck on the oil filter housing and was not removed before the new filter was installed.The new filters gasket is not seated correctly on the oil filter housing.No Oil filter gasket was installed with the new oil filter.Defective Oil Filter and/or Gasket.Oil Filter Housing came lose from the engine block or mounting surface.
Yes
spider gasket is bad
oil filters normally have a o ring or a d ring not a gasket. and it is installed on filter itself if you have the spin on type or around the filter cap / screw in housing if you have the cartridge type
yes there are 2 o-ring gaskets against the engine block where the oil filter housing attaches.
Oil coming from the oil filter area usually means that the gasket for the oil filter is not seating right. If the filter was changed recently, the old gasket could have been left on, along with the new gasket, causing a bad seal.
Your 1997 Mercury uses a spin on cartridge filter. The gasket is built into the filter. Just apply a thin layer of oil to the new filter gasket and screw it on. Tighten 3/4 turn after it makes contact with the mounting surface. Do not over tighten. If the old gasket was left on when you removed the old filter just pull it off.
apparently it needs a new gasket or there is a small hole in the housing itself.
Felpro sells a gasket set for this problem part number ES72671 Remove the oil filter there are two hex screws that are 1/4 inside the housing remove these. You may have to wiggle the housing a little to get it loose. There are also two oil cooler lines running to the housing you can remove both, I only removed the top one. There is a place for the O-Ring on the housing,the gasket goes on top of the housing.
Confused by what part you mean by the filter top and the selector valve housing. If you mean between the filter body and the filter head, it means you need to replace the gasket between the two. Simply remove the filter head and inspect the gasket that sits between the filter and the filter head. If there are any tears or several nicks in it, go to a pool store and just pick up a new one. If you mean the filter head is leaking, it most likely means the spider gasket is leaking and needs to be replaced