I just installed an oilfilter without a check valve, is this going to be a problem? I have never seen a oil filter check valve in a car or suv, why is it needed?

 

i guess i didnt even realize when i put mine on it was one. maybe where the engine oil is actually in the tank vs. the engine that when its off it keeps the oil in the filter for start up.

 

I was thinking it was a by pass for too much pressure or blockage.

 

The By-Pass Valve
The by-pass valve functions to prevent a clogged filter from rupturing or, just as importantly, from lower oil pressure. The valve also functions to open during severe oil pressure spikes that happen during periods of very high RPM's. Lastly, the by-pass valve also opens when the oil viscosity is too high (aka the oil has thickened due to cold temperatures, or as a result of to long of an extended drain interval). For this reason is generally a really good idea to use the proper OEM specified multi-grade oil when using conventional motor oils in colder climates If you use a synthetic motor oil then this is not a concern all at as almost all brands pump at -40F.

There are a variety of designs for the by-pass valve. Generally, the valve uses a spring loaded design where oil pressure pushes the valve open as pressure builds up from a clogged filter. When a by-pass valve opens it circulates "dirty" oil directly back into the engine to ensure proper lubrication at all times. Usually, the valve is coated in some form of gasket material to prevent leakage.

 

Makes sense to me.
Thanks for the info

 

There is also the anti-drainback valve. This is the rubber flap that you can see through the holes in the top of filter. This keeps the oil from draining back through the filter. This keeps the oil lines primed and full of oil

 

duner1,

What did you use?

 

Fram

 

Fram tg 7317
it cross refrenced to be the right one and matched up to be the same, just lacking the valve from the OEM.

 

Use a Wix 51356 or Napa 1356

If you search around on oil filters you'll fine no one wants to use a Fram.....But I too used to use them for years.

Try here: http://www.bobistheoilguy.com/