Is there a point where a filter can over filter the oil, and not flow properly? I know there is a huge difference between a wal mart fram and , say a k/n oil filter....Yes, i am a newby, have patience.
One very good filter question!!!!!!!!!!!!
- Thread starter dbvettez06
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Any filter of any type will, if not replaced, eventually get clogged up and not flow adequately. That's why most oil filters have a bypass valve that will bypass the filter if oil isn't flowing properly.
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IMO, not under most circumstances ..for a generic answer
If I didn't qualify it, someone would point out the false assertion by mentioning "with 60 weight oil, in a high volume pump situation, at -30F conditions with a 15k miles used filter.
They also saw BigFoot once or twice and a number of other urban (or rural for that matter- I wonder why they're called "urban" legends ..why not rural, suburban, school district, county, or village
- perhaps it's the tendancy for all of them to begin with "I knew someone in my (fill in the blank) who this happened to." type thing.) legends. Now Big Foot may exist ..and surely you personally may run into the set of conditions where a filter filters too good and whatnot ...but both are unlikely in sensible common day to day existance.
Filters have bypass valves to protect the media. Some are in the engines themselves ..most are built into the filters. These, in my experience, rarely operate under most conditions ..even with what is considered finer filters under exceptional circumstances.
If I didn't qualify it, someone would point out the false assertion by mentioning "with 60 weight oil, in a high volume pump situation, at -30F conditions with a 15k miles used filter.
They also saw BigFoot once or twice and a number of other urban (or rural for that matter- I wonder why they're called "urban" legends ..why not rural, suburban, school district, county, or village
Filters have bypass valves to protect the media. Some are in the engines themselves ..most are built into the filters. These, in my experience, rarely operate under most conditions ..even with what is considered finer filters under exceptional circumstances.
I lean toward Gary Allen's response. The bypass is there to protect the filtering media. i.e. the filter has been on there far too long under adverse conditions. Or, using an oil too heavy for sub zero temperatures. I too believe that bypass
mode is seldom kicked in, when an engine is properly cared for.I certainly cannot back this up with hard data, but I think it only makes sense. IMHO.
mode is seldom kicked in, when an engine is properly cared for.I certainly cannot back this up with hard data, but I think it only makes sense. IMHO.
so....gary alan if I understand you correctly,your opinion is oil filter bypass valves are as effective as the retrofits CA. does to its transportation infrastructure. it gives you the warm and fuzzies but is pretty useless in a major earthquake.or put another way designs intention and applications utilty are er.. both flawed!
There was a simular post about Purolaters. Purolater tech said there filter is designed to filter as slow as feasiably possible without tripping the bypass valve. Purolator stated each filter was designed with each engine in mind. This was a question on the PureOne filter. Bypasses are a wonderful thing though.
The function of the bypass valve is to protect the engine from oil starvation on the basis of, "dirty-oil-is-better-than-no-oil" and "let-no-blown-filtration-media-debris-clog-oil-galleries". Any "protection" afforded the filtration media is purely incidental.
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I don't know if I agree, Ray. Now surely you could have a plugged media ..and run your oil pressure up to the relief limit of your pump (which can happen anyway) and starve your engine from oil ..but we're getting into "Bigfoot" range here. If that was an "absolute" rule ..you would never see anything of any variance in the bypass settings. You wouldn't see 8-11 for WIX ...12-16 for Purolator ...etc..
The sensible conclusion is that the various bypass settings are due to different thresholds of durability of the various medias.
The sensible conclusion is that the various bypass settings are due to different thresholds of durability of the various medias.
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I don't think so. Someone might ask you to successfully explain a number of questions ..that is, defend your assertion in contrast to apparent contraindications in the industry ..if your assertion stands in defience of apparent reason, that is.
Your wrong for not telling.
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Well, gentlemen ..I'll disagree. I won't bat it back and forth too much...but the oil will go where it will go ..up to the limits of the pump's relief. It will collapse the media if the relief limit is high enough ..even if you reverse bias the flow through the filter and have an ADBV to blow through.
So, if you're referring to "protecting the engine" on a tertiary level ...sure ..I'll go with that. The whole filter/oil/lubrication scheme is constructed for that purpose. Otherwise, I'd have you ponder why Purolator protects the engine with 12-16 psi bypass valves ..while Wix feels the needs to do it with 8-12 psi bypass valves. Does Wix or Purolator care more about your engine (the exact same engine, btw)? Which one is more negligent ..which one more anal
So, if you're referring to "protecting the engine" on a tertiary level ...sure ..I'll go with that. The whole filter/oil/lubrication scheme is constructed for that purpose. Otherwise, I'd have you ponder why Purolator protects the engine with 12-16 psi bypass valves ..while Wix feels the needs to do it with 8-12 psi bypass valves. Does Wix or Purolator care more about your engine (the exact same engine, btw)? Which one is more negligent ..which one more anal
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Last call ..so can we infer or imply that Purolator cares "more" or "less" since they use a different setting then you do?? Is more better ..is less lame? Why is their standard different then yours for the exact same engine under all conditions. The engine is the same ..the oil will be the same ..the temp will be the same ...
...hmmmmm...what's different in each of these pictures ..one with WIX ..one with Purolator
Got me swinging
(shhhh -don't tell him)
...hmmmmm...what's different in each of these pictures ..one with WIX ..one with Purolator
Got me swinging
I don't think you can imply anything based on bypass setting alone.
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