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Oil filter observation by 2.5
Started on: 08-14-2017 05:22 PM
Replies: 9 (322 views)
Last post by: Keel on 08-17-2017 12:37 AM
2.5
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Report this Post08-14-2017 05:22 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
So my more recent Fiero has a remote oil filter. I noticed recently, after changing the oil and having driven it a few thousand miles, also trying to find a leak in the set-up....that the previous owner had the hoses hooked up reversed.

So the oil was in effect coming into the "out" on the filter mount and going out the "in". So it was filtering backwards in the filter itself as well.

Though a little alarming to find this out. After correcting it, with a new filter too, all that seemed to change is the oil pressure is now 7-10 psi lower. Which is probably more accurate because it always seemed to read high, and numbers are still great.

If anyone has any thoughts or comments on this, cool.

[This message has been edited by 2.5 (edited 08-14-2017).]

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css9450
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Report this Post08-14-2017 05:28 PM Click Here to See the Profile for css9450Click Here to Email css9450Send a Private Message to css9450Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have seen fuel filters installed backwards, too. One one hand, it might be perfectly OK... On the other, who knows? Hope all is well with your engine!
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cvxjet
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Report this Post08-14-2017 06:08 PM Click Here to See the Profile for cvxjetClick Here to Email cvxjetSend a Private Message to cvxjetEdit/Delete MessageReply w/QuoteDirect Link to This Post
OK....was the car faster in reverse...? (Sorry, just had to!)

Can't believe that someone would hook it up reversed....But then a car "Enthusiast" once asked my engine-builder friend if he needed to change his PISTONS now that his honda had 30,000 miles on it........

I suppose that the filter would (Basically) work ok in reverse....But they are supposed to have a bypass valve that would not work properly with the flow reversed....and some filters have a magnet to capture metal in the bottom...which would not work at all in reverse!
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notwohorns
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Report this Post08-14-2017 07:42 PM Click Here to See the Profile for notwohornsClick Here to Email notwohornsSend a Private Message to notwohornsEdit/Delete MessageReply w/QuoteDirect Link to This Post
Also, if the oil filter had a anti-bleed back valve, the valve would restrict the flow of the oil
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Patrick
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Report this Post08-14-2017 08:30 PM Click Here to See the Profile for PatrickClick Here to Email PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 2.5:

So my more recent Fiero has a remote oil filter... that the previous owner had the hoses hooked up reversed.


OMG... some people should stick to playing video games.

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theogre
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Report this Post08-16-2017 04:37 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
All oil filters are a one way device. More so when filters have anti drain valves.
the filter media have little strength when oil flow inside to outside and can fail and block oil flow.

V6 and l4 for Fiero and others have bypass valve in the engine but many engine do not. Engine w/o bypass in them have filters w/ bypass. Bypass opens when inlet pressure is > ~4psi over outlet pressure.
Is likely the reason you had higher Oil Pressure. Bypass need pressure to open and doesn't flow as well as oil filter.

 
quote
Originally posted by notwohorns:
Also, if the oil filter had a anti-bleed back valve, the valve would restrict the flow of the oil
Many times the filter does very little to nothing and all oil will go thru bypass valve in the engine.

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fierofool
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Report this Post08-16-2017 06:03 PM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageClick Here to Email fierofoolSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post
The way the filter is designed, the filter should have collapsed with reverse pressure. I hope you replaced the filter when you found it was reversed, otherwise you just flushed everything back into the engine.
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robert1234
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Report this Post08-16-2017 08:42 PM Click Here to See the Profile for robert1234Click Here to Email robert1234Send a Private Message to robert1234Edit/Delete MessageReply w/QuoteDirect Link to This Post
Video games, LOL
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cvxjet
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Report this Post08-16-2017 11:44 PM Click Here to See the Profile for cvxjetClick Here to Email cvxjetSend a Private Message to cvxjetEdit/Delete MessageReply w/QuoteDirect Link to This Post
But....but...WAIT! Those video games are so real! I KNOW a car can flip 10 times and then land on it's wheels and continue on....withOUT dents! Yeah....that's VERY realistic.....
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Keel
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Report this Post08-17-2017 12:37 AM Click Here to See the Profile for KeelClick Here to Email KeelSend a Private Message to KeelEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'd be more worried about if there is still a filter by pass in the system, that little extra needed push to get through the filter backward might have partly or completely opened the bypass, and you had un filtered oil most of the time.
If the bypass was removed or blocked off when the remote was installed no harm, other than working the oil pump a little harder..
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