Here's another How to I've written up on my blog. You can check it out here, or read below.
If you’ve ever run an aftermarket oil cooler kit. Chances are you’ll need an oil filter with a different thread pitch. I came across this problem myself when I assumed the oil cooler kit would suit a standard filter.
So what we are going to do is search the Ryco online catalogue to see what oil filters we can run on whatever car. Whether you just want a higher capacity filter or you are running a cooler kit. This will help you out.
Click here to go to the Ryco catalouge, on the left hand size, we are going to “Search for Part” so click that link and it will take you to a new page.
Now you’ll need to key in a part number. Normally with oil cooler kits, the vendor should specify what part number filter to use (or thread pitch). For me I already had an oil filter installed on my kit called a “Z79A”, so that is what I typed in.
You can either hit enter on your keyboard or click on the little red arrow to proceed.
Now you’ll see all the specifications on your selected oil filter, what you now want to do is match the thread pitch, seam diameter and seal diameter to a larger (height overall) oil filter (if possible).
Now you’ll need to go to “Search for Dimension” link which is under “Search for Part” on the left hand side of the Ryco catalogue.
Before we can search by dimensions, we need to fill out the category and filter type. After you’ve done that you can then search your desired thread pitch. So copy the thread pitch and place it in the box that is highlighted.
Hopefully a long list will pop up, with part numbers, height, seam, seal and thread measurements. No matter what way you searched, you’ll still need to keep an eye out on the thread pitch. As you can see I searched by thread pitch and other sizes have still come up in the search.
It would be a good idea to duplicate a tab of the specifications of your current oil filter.
You can search by seal or seam diameter too but be careful as you’ll have all different thread pitches in that search.
If you searched “Z79A” like I did, you will find that a “Z148A” is a perfect replacement oil filter, As it has the same seam and seal diameter, along with the same thread size and pitch. But is quite a bit taller which should work out a-ok for me.
I think the Z79A is too small an oil filter to have on an RB, it’s almost half size of a standard oil filter.
So there you have it, this is a good way to figure out if you can run a higher capacity oil filter on your car. Be sure to check out Run-It-Hard once in a while for upcoming how tos, vids and pics.