Lower oil pressure after oil change.....?

[Laine_16v]

Champion F136

[cliokongen]

Champion F136

Can't get one of those today.... Unfortunately....
But can get a Mann (Filtron - same thing) filter today.

The filters i have been looking at have "valve opening pressure" stated.
Is that a bypas valve that opens inside the filter if it gets clogged?
The stated pressure are very different from filter to filter.

The Mann filter is 1,3bar. (just for the curious tech geeks)


Michael

[Purple]

Oil pressure can change between different brands of oil even with same rating and with same renault oil filters. I think I usually see within 1 bar difference when I switch oil brands. But if the needle is not rising at all with revs, then there's probably something not right.

[Richardcard1974]

Champion F136

Can't get one of those today.... Unfortunately....
But can get a Mann (Filtron - same thing) filter today.

The filters i have been looking at have "valve opening pressure" stated.
Is that a bypas valve that opens inside the filter if it gets clogged?
The stated pressure are very different from filter to filter.

The Mann filter is 1,3bar. (just for the curious tech geeks)


Michael

The valve pressure on the /2 is different from the /3.

1.3 and 1.1 bar i think.

[2 live]

this is a problem thats been occuring for years. reno changed the filter design.

as said above, diff makes of oil can also give diff pressure readings......just dont use castrol stuff, or mobil 1 u shud b fine.

[number1]

doesnt the Filter Bypass valve opening cause unfiltered oil to circulate the engine?

[MAXIBOY]

yes...but if they have changed the particle filtration size smaller that would account for a lower pressure..

[number1]

Yeh due to the build up of flow going into the filter,

[col]

I have a question,..........in a box at work ive got three oil pumps from 3 different engines...early 16v.....f7p,.........a f7p late one, and a f3p one.......now on first inspection they look all the same.........but they all have different markings at helical end and also at the oil induction end .......no i dont reckon they are cast marks either...any thoughts?

col

[MAXIBOY]

yeah..

the thing is like most manufactures they started with a 16v item and willy item and then the best pump a megane item.( it had a higher delivery). also they all had slightly different sumps so the oil pick up where different.

but now theres just one pump for all engines..even though i had to re-use the original pick up on mine as the new one size fits all megane item was to deep/long..

as they become older they make less parts..