oil pressure gauge

[mikejax21]

im wanting to install an oil pressure gauge in my 95 q but i need to know what is the pitch of the thread for the oil pressure idiot light switch?

[OwnerCS]

If I recall correctly, you'll need a BSPT (British Standard Pipe Thread) fitting. Search this forum for BSPT.

Wes noted in another thread: "You can get a 1/8in BSPT to 1/8 NPT adapter to use a standard oil pressure gauge."

[Skibane]

Some of the oil gauge installation kits include an assortment of adapters.

[mikejax21]

well id like to install an electric gauge kit. how much space do i have around the switch most sending units for oil gauges are pretty big

[Skibane]

If you wanted to get all McGuyver-ey, you could run a short length of oil line from the engine to your electric sender - and mount the sender somewhere else in your engine compartment. That way, you'd only need enough clearance around the switch to install the oil line and fitting.

[elwesso]

You're kind of limited on what you can do in that area behind the exhaust manifold. Here is what I would suggest. First of all, get one of these fittings..

http://www.mcmaster.com/#4860k141/=os1jl0

That will take you from the 1/8" BSPT to the 1/8" NPT which is what most sending units use.

That fitting is only about 1" long, so I doubt that's the difference between fitting and not, and you'll actually only be about 1/2" longer total since you'll thread the sending unit into the female end of that adapter.

If that isn't enough room, I think your next best bet would be to get an elbow and face the sending unit down, with something like this:

http://www.mcmaster.com/#4464k35/=os1lz8