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Old 15-10-2006, 11:52 AM   #1
madaz sp20
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Thumbs up Larger Oil Filter For Mazda's With Z436 Filter

Hey all, some people might already know this but the oil filter listed for one of the earlier Ford Laser's will fit on the Mazda block. The Laser filter is a Z79A and is considerably larger than the Z436 listed for the 323.

This makes it much easier to remove and install the filter and a little bit more oil capacity can't hurt either Plus as you can see the Laser one is a $1 cheeper at retail price





Cheers

Discalmer, I take no responsibilty if this screws up your engine, this was told to me by a guy who rally's mazda's.

Last edited by madaz sp20; 15-10-2006 at 12:10 PM.
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Old 15-10-2006, 04:29 PM   #2
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the filter to the right is the V6 filter within the mazda range...
filter to the left is the 4 cyl petrol filter (diesel has a different filter)

the v6 filter will increase your filtering and should theoretically mean oil flows easier - it also drops your oil pressure - i noticed that i would get the pressure light come on down steep hills as the oil totally drained away from the pressure switch
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Old 16-10-2006, 04:08 AM   #3
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And a Corvette ZR-1 oil filter fits the v6 engine as well and has more capacity
In case you didn't know
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Old 16-10-2006, 04:13 PM   #4
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Quote:
Originally Posted by platypus
the v6 filter will increase your filtering and should theoretically mean oil flows easier - it also drops your oil pressure - i noticed that i would get the pressure light come on down steep hills as the oil totally drained away from the pressure switch
not the larger filters problem, problably more like too thin or not enough oil.

when i had the old oil cooler on the BA, which is 175ml more oil, we never had a problem. so the extra 15ml and area shouldn't be a problem with the bigger filter.

the only time i ever have the oil light come on is when i've done more than 200km at queensland raceway in a day and burnt most off all the oil out. coming on at turns 3 and 5.

the original oil system wasn't designed for the sideways g forces and constant 5000-7000 rpm that i put on it.

bigger oil filter should be fine, but honestly its not really needed.
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Old 16-10-2006, 06:17 PM   #5
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Quote:
Originally Posted by deejayryry
not the larger filters problem, problably more like too thin or not enough oil.
don't know about that - used same oil tried it a few times - only difference was the filter and the weather
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Old 17-10-2006, 11:22 PM   #6
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I read this thread after I just bought a filter! Just a bit off topic but is it ok to do oil change every 5000kms and filter at 10,000kms? I've got a 95 BA with under 110,000kms and i dont drive it hard.
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Old 17-10-2006, 11:31 PM   #7
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the onyl issue maybe presssure lose of 1 - 3 psi if that
I mean I know back in the day you could easily fit EFI 304 oil filters onto the 308 carby V8 holden blocks and bump the oil pressure up it was trick quite a few guys used when working motors to keep them alive instead of using better oil pumps
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Old 22-10-2006, 06:47 PM   #8
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Quote:
Originally Posted by Trev323
I read this thread after I just bought a filter! Just a bit off topic but is it ok to do oil change every 5000kms and filter at 10,000kms? I've got a 95 BA with under 110,000kms and i dont drive it hard.
should be ok, but why do it cos filters are only $8. engine deposits don't all run out the sump plug when the oil is drained. why risk it to save $8.

if you don't wanna do both at 5000km. then do both at 7,500km.

ryan
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Old 22-10-2006, 11:25 PM   #9
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I change it every 5000kms but just didn't know if it was really necessary. Where abts do you get them for $8? From memory, autobarn sell them for like $11 or even $12 sometimes. I guess its only a few bucks
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Old 23-10-2006, 03:24 AM   #10
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Seeing as it can take only 100km of driving to gum up your filter I really recommend doing it EVERY time you put oil in your car
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Old 24-07-2010, 01:38 PM   #11
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G'day guys, sorryo to bump an old thread but my next door neigbour saw me under the bonnet of Dad's BJII-J48 323, and he gave me a Z79A for free, I come across this thread and was wondering if they are interchangable with the Z436 on all cars?

Thanks much.
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Old 25-07-2010, 05:45 AM   #12
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Should be. Or keep it for your BA.
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Old 07-12-2010, 11:44 PM   #13
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The Z79A is for the 80s 323s, but it does fit where a Z436 filter should.

The Z411 is the filter for the V6 and should also fit vehicles that call for a Z79A or Z436

In fact the Z411 is probably a better swap for the Z436 as the seals are the same whereas the Z79A is slightly different. I have been using a Z79A in place of the Z436 on my SP20 for a few services now (no leaks).

There are in fact a whole bunch of filters of identical or very similar fit. There's the Z150 which is twice the size of the Z436 if you wanted to go crazy, although it may not fit in the space since it's so tall.

Last edited by phunkdust; 07-12-2010 at 11:49 PM.
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Old 08-12-2010, 12:26 AM   #14
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Are the diameters any different??

I have an oil filter relocation kit installed so height is not an issue for me.

Do you know of a website where I can check the dimensions?

Cheers.
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Old 08-12-2010, 01:52 AM   #15
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Quote:
Originally Posted by Orion View Post
Are the diameters any different??

I have an oil filter relocation kit installed so height is not an issue for me.

Do you know of a website where I can check the dimensions?

Cheers.
Z436 Dimensions
http://www.rycofilters.com.au/catalo...duct/part/Z436

Z79A Dimensions
http://www.rycofilters.com.au/catalo...5-6H/part/Z79A

Z411 Dimensions
http://www.rycofilters.com.au/catalo...duct/part/Z411

Comparison result matching seal size and thread size
http://www.rycofilters.com.au/catalo...ad/M20-x1.5-6H

Last edited by chewyryce; 08-12-2010 at 02:08 AM. Reason: missing info
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Old 08-12-2010, 09:00 AM   #16
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Cheers!
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Old 08-12-2010, 11:43 AM   #17
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Z79a is also off the BG SOHC's, thats what mine had on it, i was suprised when i put the new engine in and went to take the filter off, noticing it was so small
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Old 08-12-2010, 01:20 PM   #18
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Quote:
Originally Posted by tamass323 View Post
Z79a is also off the BG SOHC's, thats what mine had on it, i was suprised when i put the new engine in and went to take the filter off, noticing it was so small
DOHC motors as well. I was freaking out that i was using a Z79a until i found the listings for '323 AWD' that said use Z79A on the BPT and the smaller one on the BPD.

BG10P SP Petrol 4 1.8L BPD MPFI DOHC 16V 10/89-06/94 Z436
Series 3 Petrol 1.8L BP AWD F/inj 10/89-07/94 Z79A
Series 3 Petrol 1.8L BP F/Injected 10/89-07/94 Z79A
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Old 08-12-2010, 01:31 PM   #19
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Awesome, i'm going to try a Z150 next time the Hardtop is due for a change. Thanks for the info guys!
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Old 08-12-2010, 02:19 PM   #20
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I haven't poked my head under the BA yet but at least on the SP20 there is a fair chance a Z150 would hit the firewall.
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