Connecting external oil filter

[EJ_Dave]

I have an external AC filter housing and was wondering where the top and bottom hoses hook up on the motor.

Thanks,

EJ Dave

[FE_225]

Hi Dave
First remove the oil pressure switch. You then need an adaptor. It's just an extension with a hole in the end and one in the side. Screw the adaptor into the hole for the OPS then the OPS screws into the end of that. The side pipe on the filter screws into the side of that extension.
Behind the fuel pump, just above the sump rail there is a hex headed plug (NOT the slotted screw up higher), unscrew that and fit the other pipe from the bottom of the filter into there.Add some extra oil to allow for the filter. That's it. Done.

If the motor has been in use for some time, it may be a good idea to remove the sump and clean out all the sludge in the bottom, hence the nik name "sludge motors". Otherwise the clean filtered oil is just getting dumped back into a dirty sump. Thats the only way to get rid of the slop in the bottom, the filter just wont get rid of it. It's a good chance to clean out the screen on the oil pump too.
Hope this helps
Tony

[EJ_Dave]

Tony,

thanks for the info. The motor was rebuilt 18 months ago and I change the oil every 3 months. Do you reckon much sludge would have built up?

EJ Dave

[FE_225]

Dave , that shouldn't really be a problem then. Old greys with many miles on them are usually the ones full of slop and have the pump filter screens caked in garbage. Your's should be OK
Cheers
Tony

[Richard]

DON'T fit this useless filter to your baby.

An external, bypass filter, actually shortens engine life.  Even Rolls-Royce discovered this in 1951 when they converted to full flow.

Red motors were full flow and excellent in this regard, but the grey motors last longest with no oil filter fitted.  The bypass filter doesn't help pressure, and tests found they had no measurable effect on oil quality.  With modern oils, this is even more true.  Just change the oil regularly and forget an external filter for your grey motor.  Ours did 150,000 miles - no filter and without overhaul - before I replaced it with a red motor.  I sold it, and it went into another FC, still burning very little oil.