Thread: Isuzu Twin Oil Filter Spacer Block

Originally Posted by workingonit

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On the funny side, seeing all the stacked plates siliconed together makes me think yep, this is what LRover would do - plenty of scope for leaks.

Cheers.

The stacked plates is what Bojan and I have, because 12 mm was the thickest the laser cutter could cut without distortion.

The setup hasn't leaked a drop in the several years and many km since installation. Wish I could say the same for some other parts of the vehicle.

Nugget from this forum has offered to make them in his own workshop.

They will be the drilled type, similar to the set that Rijidij made. i.e. they will not be the same profile as the filter. This is because it will make them cheaper and easier to manufacture.

Nugget is in the process of setting up an online store. These spacers will be a permanent item in the store once set up, however I am not sure at this stage whether they will be sold in a kit with threaded rod and fixings.

Thanks Cameron, that's great. Nuggets work is top notch appreciate your effort.

Nugget has bought some aluminium to make up a trial set.
The plan is to fit one to my car, just to make sure everything is right before they are sold.

There will potentially be two types of spacers made, one for truck motors that already have the existing two holes in the block (one for primary, one for bypass). The other would be for factory LR Isuzus that only have the primary hole in the block. The plan would be to cut the spacer so that oil from the hole could enter the bypass or the primary filters.
Are there any major issues with this?

The only diagram is attached (hijacked from another thread).

Just looking at the diagram, it looks as though the bypass hole is actually for the return.

Can anyone confirm this?

This would mean that factory Isuzus would have to drill out the hole in the block (doesn't sound like a nice job).

Can't see how your one hole spacer can work. The bypass filter needs the second hole through the block to return oil to the sump.

Steve

Typed my last post on my phone so sorry it was a bit brief.

Oil feed for both filters comes from the same place - the single hole as found on a single filter setup.
Return oil from the bypass filter in the twin filter setup goes into the other cavity on the block, and needs to have the hole through the block into the sump so it can return, otherwise no flow and the bypass filter would just be an expensive blanking plate.

Easy to drill the drain hole for the bypass, but ideally you'd want to drop the sump to clean out the swarf. That's what I did with mine after effectively carrying it around for a few thousand K's with no hole

Steve

As Steve says...

Both sides of the full flow filter are pressurised. If you tried to tee the bypass filter outlet to the same place as the FF it would not flow.

The only way around drilling the block would be to run a separate drain for the bypass filter out the side of the housing to the sump pan or similar. IMHO this would be more work than drilling the block and would give more potential places for leaks.