bypass oil filter

G'day all,

I have the AMSOIL by-pass set-up and haven't changed my oil for 33,000 klm since I fitted it. I have been sending samples off to Castrol's laboratory every 5000klm just to be sure all is well. I got my dual head unit from a bloke on Yorke Peninsula SA, but have also been given the phone number of a bloke called Bruce in Adelaide, who is supposed to be a supplier too.......8388 5294.

Check out http://www.amsoil.com/StoreFront/images/frame_mount_02web.jpg
for one of the pictures of a typical installation set-up.

My set-up involves removing one of the Nissan's original filters (my model Nissan comes with 2 different filter types....one is supposed to be a by-pass filter too, but it is not as fine grade filter as the AMSOIL BE100 which is what I am using). So, you remove the rear filter from the engine and replace it with an adaptor plate which has 2 hose barbs. You then use 2 lengths of high pressure hydraulic hose to take oil to/from the remote-mounted head unit. The one I am using has 2 filters attached to it; one is the large black BE100 by-pass filter, the other is a SDF15, similar to a standard Nissan filter and it actually has the same thread and physical size as the original filter. The disadvantage of this set-up is the sheer size. I've had to relocate my 2nd battery into the cargo area of my Patrol and have mounted the bypass system where the 2nd battery had previously been. NOTE: this has actually been a blessing in disguise for a few reasons......it gets the 2nd battery closer to the things it needs to power-up (fridge, compressor, HF radio, inverter etc).....plus....the weight of the 2nd battery meant that the battery tray had pulled away from the inner guard, tearing away the metal behind the radiator expansion water bottle too.

Of course I was concerned that if I blew a hose off the engine could empty itself of oil in a minute or 2, so I've also fitted a buzzer which is connected to the original oil pressure switch (above the filters), so that I don't have to rely on seeing the red idiot light if I lose pressure. Just as a bit of extra info, I've also fitted a VDO oil pressure gauge with it's sender unit located on the opposite side of the block (the passenger's side).

Now, just to confuse the issue a bit, there is a 2nd option with the AMSOIL set-up, which a bloke I know who also lives here on the YP has in his GU Patrol. He has not removed either of his original filters. Instead, he has fitted a "T" piece where the Nissan oil pressure sender is mounted. The "T" piece enables the pressure sender re-fitted and also a hose which leads to a single head unit by-pass unit. He has mounted the remote single head unit on the fire wall in the back corner, passengers side. He uses a BE90 as the area is not large enough to accomodate the BE100. He has returned the oil back to the engine via a hose to the passenger's side of the block. There are 2 'plugs' on the side of the 4.2 diesel block, just behind the alternator. These are quite close together. The one closest to the front of the motor is the one I removed to fit my VDO oil pressure sender unit. The one just behind that is the one my mate has removed in order to fit a barb for the return oil from his by-pass. I think that in the GQ, one of these plugs is in use already.....something to do with the vacuum system...... but it can still be used with another "T" piece fitted as far as I know.

Hope this helps a bit.......

Cheers

Roachie

Where do you purchase this system? What oil do you use?
thanks

Thanks Steve.

the pick up and drain point i assume is where each end of the bypass hoses are connected to. in this case am i right in saying that the other 2 free flow filters will remain and the bypass filter will be an extra? and thanks twinkles i was just about to ask that too.

Barnesy

Hi Barnesy
Yes you are right about the pick up & drain points, if your GQ has a oil cooled alternator, a T piece into the block on the larger diameter hose(return) will do & just back from where the smaller diameter feed line comes into the alt from the block there should be a small hex headed plug only 8-9mm in diameter, this is your pickup. Yes the other 2 filters remain Try www.baldwinfilters.com.au then go to contact us & they will tell you where the closest dealer is to you. High pressure hoses are needed too once you have worked out a place to mount the alloy head I made a bracket up & mounted mine under the bonnet up near the top of the firewall. From memory all up mine cost $130 high pressure oil hoses & the elbows fittings done most of the damage, sorry cant remember the specific size of the fittings that go into the block. In all a bit of mucking around but well worth the effort involved. Hope this helps
Cheers Steve.