Oil Filter

[streetracer75]

I just picked-up a new oil filter for my 1500 GLS and it is smaller than the one that was fitted? I checked with my parts supply store and they assure me its the correct one.

The one they came off has a bigger diameter and covers all of the smooth machines area on the side of the block where the filter spins on. The replacement filter is smaller and does not fully cover all of this area but seems like it spins on ok.

The people who supplied the replacement are Chrysler specialists but I just wondered why there was a difference?

[oldschool]

Dumb asses gave you a Chrysler Avenger GLS filter instead of a Hillman Avenger GLS one.
Take it back and get a Z10...lots of old school cars used them.
As the ladies say...don't settle for a small one when a big one will fit...LOL

The Chrysler GL/GLS had to use a smaller filter as the electric oil pressure gauge sender unit interfered with the Z10 filter.
All Hillmans used the Z10 and the GLS had a plastic pressure line to the hydraulic oil pressure gauge, leaving room for the Z10.

[streetracer75]

I am glad I asked the question now. The parts store are still saying its correct, but I think your right as the filter that came off was larger.

I managed to find one that matches the larger size? Its a Hengst filter No. 10W06  but I cant find a parts ref to say its correct for an  Avenger? It has a Mann filter W917 cross reference on the box, but when I look this up it says Volvo? It also has a Bosch cross reference No. 0451 103 221 but I cant find any listing for this either?

If its the same size and spins on ok, is a filter pretty much the same as any filter?

I don't want to cause a problem by fitting the wrong one. Any ideas?

[JoKer]

Little filter WILL work and do the same thing so not really a do or die issue IIRC

bar it being probably less than 1/5th smaller in 'filtering ability'

think internal filter surface area if oil enters the centre of the filter, permeates to the outer via a paper doughnut then back into the block to do it duties

[oldschool]

Little filter WILL work and do the same thing so not really a do or die issue IIRC

bar it being probably less than 1/5th smaller in 'filtering ability'

think internal filter surface area if oil enters the centre of the filter, permeates to the outer via a paper doughnut then back into the block to do it duties

Not so Jared, the oil enters the Outside of the filter from the block, passing through the holes with rubber flaps (to prevent drain back through the pump) then through the filter element to the Inside and going out the centre hole to the bearings, etc.
A larger filter would have a larger element surface area and more room for crud to accumulate before affecting filter operation, hence a bigger safety margin, allowing longer service intervals.
So always better to fit a larger filter over a smaller one.

Any filter that cross references with the Z10 would be fine to use, providing it has the rubber flaps to prevent drain back, as it's mounted horizontally.
Some filters don't have the rubber flaps, as not needed when the filter is vertically mounted with the holes at the top.

[JoKer]

ah of course (I am a bit of a stirrer also : say something wrong and get the correct info back )

yea all the dust filters I have in my workshop go outside in

still maintain only a slight reduction in surface area given diameters

needs some maths "Pi"x R Squared and stuff like that, the allow for the pleats in the filter (they zig-zag back ad forth to the inner-outer of housing)

who has a spare day for all that nonsense, I bet it exists on the internets somewhere anyway