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What Brand Oil Filter Do You Use
#373
Oil Filters & anti drain back valves
How long do you think an engine has to sit before it actually makes a dry start? Does an evo motor really need a anti drain back valve? The bypass what put in a filter for what reason?
Enlighten me..
Enlighten me..
#374
Maybe on a wet sumped engine. However I do agree on the bypass valve. Because every brain back valve filter out there has too small of a micron rating, along with a system designed for low psi and high flow to push it through. At least oil will still circulate, unfiltered, but there will be oil getting to where it needs to go.
#375
Really confused now. Seeing how none of my questions were answered. Has anyone really took the time to tear open a used filter or just watched the videos on utube tearing apart new ones? I just gotta ask this one. On a dry sump motor as you say what sends the oil to the pump? Here let me if i can get you a pic of a fully synthetic media filter that is good for 2xoem specs on road machines with the exception of off road.
#376
As a rule, I cut open every filter casing at every oil change; only takes a few seconds to get a good look at your media. I've been VERY impressed by the Purolator that was discontinued (WHY???), and disconcerted by the Hi-Flow filters made in 'Nam - not because of the filter itself, but because of RUST on the inside of the housing, which tells me that they are probably stored in the direct wet climate they have. I'm talking about a 3" deeply rusted oval on the inside, which my oil flowed thru.
BTW, there is a scavenge side of your oil pump that picks up the sump oil, as I understand from what I read.
BTW, there is a scavenge side of your oil pump that picks up the sump oil, as I understand from what I read.
#377
As a rule, I cut open every filter casing at every oil change; only takes a few seconds to get a good look at your media. I've been VERY impressed by the Purolator that was discontinued (WHY???), and disconcerted by the Hi-Flow filters made in 'Nam - not because of the filter itself, but because of RUST on the inside of the housing, which tells me that they are probably stored in the direct wet climate they have. I'm talking about a 3" deeply rusted oval on the inside, which my oil flowed thru.
BTW, there is a scavenge side of your oil pump that picks up the sump oil, as I understand from what I read.
BTW, there is a scavenge side of your oil pump that picks up the sump oil, as I understand from what I read.
#378
I never heard of dry starts until around the late 70's when all the oil additive products came out, and got even worse thru the 80's.
Every engine I've ever torn down was wet as all gitout inside. Well, except for combustion chambers.
Every engine I've ever torn down was wet as all gitout inside. Well, except for combustion chambers.
#380
Even a very bad oil filter will pass. It will allow metal fibers thru and wear your engine out at a rapid rate. However, your warranty will be long gone before you are huffing oil past the rings, but your odometer will tell you that your Harely was poorly made because it wore out so fast. Look at the filter box it should tell you some place on it what kind of micro the paper in the filter is the smaller the number the less metal gets thru until to get to a plastic sheet and nothing gets thru including the oil then your warranty may be null and void in a hurry. You have to find somewhere inbetween oil flow and metal flow. There is always metal, it is called normal wear, why most filters have a tiny magnet in them.