hey guys... i came across an old mitsubishi oil filter among my piles of junk.... just wondering if anyone is any good with part numbers? its 3801471... its probably for a sigma judging by age, but as long as its for an astron i'll be happy.... also... whats the largest oil filter that will fit on an astron? like a commercial truck one... or even a forklift one... they use astrons in forklifts you know! lol....


cheers,
rob

ok... its a V031 equivalent... looks like for an old hemi valiant... what a shame i got rid of mine :(

I can do a part number conversion on that, pretty sure I have my parts books handy...

Z96 Chrysler HEMI (Valiant) Filter - V8 318, V8 360, I6 245.

As for the Astrons, it seems that Mitsubishi used the Z142A filters on the 4G54 Canters as opposed to the Z56B on the Magna, but the Z142A is actually a smaller filter than the Magna ones. Apart from that I can't see any other filters that are known to fit.

All of the part numbers i've quoted are Ryco/Phoenix part numbers, not sure what the V or OEM equivalents are.

hey cruiser,

im pretty sure the Z56B is the same as a VO3? apparently a Z436 fits too. and now you tell me a Z142A will. anyone got a can opener?

i just read something interesting about smaller, newer filters increasing oil pressure?? on v8 carby holdens for example they all have big filters... and all the efi v8s have little filters... you can put an efi (little) filter on a carbied one to increase the oil pressure... but if you put a carbied filter on an injected one you'll firetruck it in no time..

lol.. also in the spoon video they put a hose clamp around the oil filter to stop it from flexing under oil pressure.. or so ive heard

i know the z56b is sigma technology... but how modern is the canter filter? its a gosh-darn truck... im sure mitsubishi know what theyre doing, its probably better designed, more efficent and has a better anti drain back valve... the little one is probably 3 times the price too

Well, i'm not sure if the Z142A will actually fit, it just has "2555cc 4G54 Petrol" as one of its applications.

http://img510.imageshack.us/img510/7585/picture1qvy.png

Seems to specify up to 1992 anyway.

hmmm... i might try the z436... apparently its for a tx5 turbo... you wouldnt be able to tell me what else its listed for?

actually... mazda lists the z436 and ford lists the z56b for the tx5... who do i trust... the japs or the aussies?

The Japs, Mazda made the car, Ford merely altered it cosmetically.

true... but ford also changed the vehicles to suit australian conditions... the radiator in a laser is twice the size as one in a 323... i dont know what australian conditions require a larger oil filter though... maybe to increase oil capacity and in a roundabout way increase the cooling (larger oil capacity = cooler engine... oil works like coolant)

although im sure there isnt really that much difference... just dont go round chucking carby filters on efi v8s!

A smaller oil filter will allow the engine to build oil pressure faster on start up due to the oil pump taking less time to fill the smaller oil filter. The overall pressure will still be the same once running

As an example, the 2.6 astron has a oil filled timing chain tensioner which rely's on oil pressure to tension the chain. most rattle on start up when they get old. By putting a smaller z142a instead of a z56b filter, It will build up pressure faster.

I tried this on a first and second gen magna and it worked.
Even though ryco say their filters have a anti drain valve.

Regards

Epitrochoid

yea.. i was thinking along the same lines.. even if the filter did raise the pressure it would be because of a restriction... and pressure would only be raised between the oil pump and filter... which wouldnt be too helpfull

i remember reading about a set-up awhile ago where once the key is turned to the on position it uses pressurized air to pressurise the oil before you start up.... cant remember too much about the setup though... looked like it ran off those little soda canisters...


would an oil cooler have the same effect? on oil pressure at startup?

Oil filters is really as simple as the "O" ring size and the thread

There are many similar in this area

Z56b. Z142a, Z148 to name a few.

And as for putting a bigg or small filter, it makes NO difference to oil pressure at all, all it means is it may take a second longer to get to full pressure if you have the larger filter like the Z9 for ford or Z30 for Holden.

i suppose oil coolers could have a similar effect, depending how much oil drained out from them when the engine was stopped.

REgards

epitrochoid

And as for putting a bigg or small filter, it makes NO difference to oil pressure at all, all it means is it may take a second longer to get to full pressure if you have the larger filter like the Z9 for ford or Z30 for Holden.

i was thinking more about the design/engineering aspects more than just size alone...

...the 2.6 astron has a oil filled timing chain tensioner which rely's on oil pressure to tension the chain. most rattle on start up when they get old...

would it be possible to swap a spring loaded one out of a sigma in or are the bolt holes/location different? i couldnt find it when i did the head... but its been a while since ive done one on any astron....

cheers,
rob