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G'day all ,

Just wondering if people can suggest places to tap in the adapters for oil pressure and oil temp guages while retaining the std oil pressure solienoid.

also heard that the block has a strange tapered thread or something, is this true? and if so, where can i get an adapter for it.

running both guages from the same location, will need to get 2 adapters to get the 2 sensors into it.

also please note that oil cooler will be installed and would like the temp to be more towards exit temp instead of entry temp so i know how hot the oil is on its way to the cooler.

cheers

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The RB20 uses a tapered BSP (1/4" I think) fitting for the std oil pressure sensor. RB25 is probably the same. BSP threads are very common in Aus, referred to as "gas threads" a lot of the time.

You can get various double adaptors that will screw into the port on the block which will give you a port for the std oil press sensor plus another to for the gauge sensor.

You will need to know what sort of thread the gauge sensor uses. Some use unusual threads like NPT (eg Autometer).

Any place that sells gauges should be able to help you out with this sort of gear.

I've never set up an oil temp gauge but it's common to use the sump plug as a gauge port. Another option is to modify your sump by welding on a port to suit. If you're using an oil cooler you might also be able to find a special fitting that will fit into your oil lines. You might have to do some of the research yourself on what tricky litle adaptors are available from Speedflow/Earls etc.

Edited by browny
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The pressure gauge should have come with an appropriate adapter. Otherwise go and see the people you bought it from for the right adapter.

The temp gauge should be installed after the cooler - there is no point in knowing how hot the oil is before it is cooled, you want to know how hot is is before it starts to lubricate stuff. I believe the usual placement for the sensor is to tap a hole through the sump drain plug.

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The RB20 uses a tapered BSP (1/4" I think) fitting for the std oil pressure sensor. RB25 is probably the same. BSP threads are very common in Aus, referred to as "gas threads" a lot of the time.

You can get various double adaptors that will screw into the port on the block which will give you a port for the std oil press sensor plus another to for the gauge sensor.

You will need to know what sort of thread the gauge sensor uses. Some use unusual  threads like NPT (eg Autometer).

Any place that sells gauges should be able to help you out with this sort of gear.

I've never set up an oil temp gauge but it's common to use the sump plug as a gauge port. Another option is to modify your sump by welding on a port to suit. If you're using an oil cooler you might also be able to find a special fitting that will fit into your oil lines. You might have to do some of the research yourself on what tricky litle adaptors are available from Speedflow/Earls etc.

yeah the guages are both autometer. yeah will look into getting an adapter to put in the lines for the oil cooler. dont like the idea of having to modify the sump.

autometer sell the double adpaters i think. just dont think they will bolt into the block. have to pull the existing guage send out and have a look at it and match the thread. any chance you could tell me where on the block the std guage sender is, its not mentioned in the engine workshop manual. cheers

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Just grab a greddy oil filter adaptor from Greenline.

Made fitting up my gauges so much easier, and was only about $80 delivered.

i'll have to see if these will work with my remote filter kit.. cheers for the idea.

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The pressure gauge should have come with an appropriate adapter. Otherwise go and see the people you bought it from for the right adapter.

The temp gauge should be installed after the cooler - there is no point in knowing how hot the oil is before it is cooled, you want to know how hot is is before it starts to lubricate stuff. I believe the usual placement  for the sensor is to tap a hole through the sump drain plug.

My thoughts are following the same line as a water temp guage... you monitor it on the way out of the motor, not on the way in. cos then you dont really know what temp it is after its passed through to motor.

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autometer sell the double adpaters i think. just dont think they will bolt into the block. have to pull the existing guage send out and have a look at it and match the thread. any chance you could tell me where on the block the std guage sender is, its not mentioned in the engine workshop manual. cheers

I'm certain the thread will be BSP, just not sure what size. In fact all the tapered threads on the RB's appear to be BSP.

The Autometer gauge will be NPT.

The adaptor will look like the one in the middle:

adaptors.jpg

Try www.airco.com.au

The stock sender is located low on the drivers side of the engine, near the oil filter.

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