Which Oil Filter Adapter

[tm_r33]

hey all.

just went to put my rb25det oil filter adaptor onto my new rb30det engine and notice it doesnt look right.

the rb30 block has a threaded male outlet but the female hole in the rb25 adapter is not threaded and is slightly larger in diameter.

doesnt look to me like it will seal properly.

see pics below.

Do i need to source an rb30 adapter? im now guessing the the 25 and 30 adapters are different?

[jarrod83]

the threaded end in the rb30 block is for a oil filter to screw onto, you have to remove that from the block and replace it with the piece from an rb25 block that fits into the back of the oil cooler...

Jarrod

[JonnoHR31]

yep, they both unscrew. if your having trouble getting the 25 one out i used the tool for changing discs on a makita angle grinder, perfect fit. as for the 30 one, i used nut munchers because i wasnt gonna use it, but if you want to keep it find 2 nuts in the right thread and lock them together.

also make sure you use a new gasket and everything seats properly, i cracked my filter housing from it not sitting right and tightening it up just a little. had to find another one, was a PITA

Edited January 4, 2011 by JonnoHR31

[The Mafia]

just don't put the water to oil cooler back on.

don't need a cooler unless you are tracking the car. and the water to oil one is useless anyway. get a real oil cooler.

[JonnoHR31]

i kept the factory water cooler setup. havent taken any temp readings but water temps always nice and cool so i cant see it making the oil hotter.

i agree its not ideal but for a basic 30det it does the job

[tm_r33]

oh so the 30 doesnt have an adapter. the filter screws straight to the block.

eventually i will run a proper oil cooler it is a track car but for run-in and tuning i just need to get it going.

when i buy an oil cooler kit will i be needing the threaded male peice in the block or the unthreaded male piece?

i dont want to be swapping these once engine is in the car so if i need threaded later i will just put oil filter staright on block for now?

But if i need the unthreaded later i will do that now and run 25 oil to water cooler untill i buy oil cooler?

Thanks guys

(or will wether i buy a 25det or 30e oil cooler kit effect what peice in need in the block lol?)

[erderr]

You need to attach the oil filter block to the engine block, so you can screw on the oil filter or adapter for the oil cooling system. I'm pretty sure you cannot connect it straight up to the engine block as that's how I was going to get around replacing my oil filter block.

Also, FYI - you will need a gasket for the oil filter block to against the engine block. Justjap sell and stock them http://www.justjap.com/store/product.php?productid=18637&cat=318&page=1 so you don't have to buy one off nissan directly.

Here's a picture of an oil filter relocation kit just so you can see what I mean (you need the thread to hold the connector on there, it wont attach directly to the engine block): http://www.full-race.com/catalog/images/s2000%20oil%20filter%20relocation%20kit1.jpg

[tm_r33]

thanks for the input erderr

yer ive got a gasket. it came with one of the gasket kits when my 25/30 was built.

so did rb30 have a different oil filter block or not run one at all?

i dont want to use the 25det oil filter block because it has the huge hole cast into one side of it for the factory water cooler which i do not want to use.

so i still need a 30e oil filter block then is what your getting at? one that wont have provision for the water cooler just the filter?

(and obviously i chuck the sandwhich plate for the oil cooler kit where the filter would usualy sit on the 30e oil filter block?)

*tells girl friend to take me to wreckers to look at a vl commy oil filter block*

lol

thanks james

[tm_r33]

alright just to clarify i went down to a wreckers today and had a look at some rb30 r31 skylines.

the oil filter goes straight on the block. this will suit fine for run in.

[JonnoHR31]

yes, 30 screws straight on. 20 has a small sandwich plate iirc and 25 has the oil cooler/warmer thingy

[tm_r33]

this must mean that oil cooler kit for 25 and 30 will be different?

one will take a thread (30e kit) and one will slide on and use the bolt holes round the outer (25det) ?

i cant see the oil cooler sandwhich plate in the 25 kit going onto the already existing factory warmer/cooler. surely it stil goes onto the block?

[JonnoHR31]

yer goes onto the block. might pay to keep the 25 bits (mainly the fitting in the block) until you get a kit

[tm_r33]

lol i sold the block to the company that built my bottom end. so the un-threaded rb25 male filter piece is long since gone unfortunatly

[HR31-PASSAGE]

how did you go with this mate?

i'm going the same thing my self atm & want to get rid of the water cooler but not 100% sure what hose/lines to remove/block, can anyone give me some directions on this please. didn't hapen to get some pics before you put the engine in did you, so i can see how you have it set up?

cheers

[tm_r33]

Hey mate. I ditched the 25 water cooler setup in the the end. I currently have an oil filter straight on the block. As this is an engine built from scratch I will try to do a fare extensive run in so no cooler will be needed until I get it tuned again and track it.

As soon as its run in and I put the filter relocator and cooler on I will take piccs. Being a track car I dont run a heater or anything so there isnt many coolant lines left lol.

[tm_r33]

Hey mate. I ditched the 25 water cooler setup in the the end. I currently have an oil filter straight on the block. As this is an engine built from scratch I will try to do a fare extensive run in so no cooler will be needed until I get it tuned again and track it.

As soon as its run in and I put the filter relocator and cooler on I will take piccs. Being a track car I dont run a heater or anything so there isnt many coolant lines left lol.

[HR31-PASSAGE]

Hey mate. I ditched the 25 water cooler setup in the the end. I currently have an oil filter straight on the block. As this is an engine built from scratch I will try to do a fare extensive run in so no cooler will be needed until I get it tuned again and track it.

As soon as its run in and I put the filter relocator and cooler on I will take piccs. Being a track car I dont run a heater or anything so there isnt many coolant lines left lol.

oh ok i'm just not exactly sure what lines to remove.

do i just take all the lines from that rear water feed?

[HR31-PASSAGE]

edit: here's a pic of all them hoses "note this is on the rb25 block" i'm using most parts from it on my rb30 block now.

that rear water feed line also goes up to the intake manifold & comes back down, what do i do with that?