Pinto Oil Pressure Switch Question?

[FERRINO]

Morning all – Just a quick one hopefully. My pinto engine came without an oil pressure sensor in the block side (previous owner used the setup for his new motor from memory). Anyway – I bought a new sensor from GSF on Ebay ages ago – bog standard for the 82-93 Sierra:-

 

http://www.ebay.co.u...=item565ec1ef0b

 

I went to fit it last night seeing as the engine is out of the car again at the moment. First of all I was surprised to not find a seal of any kind with the new switch - is this normal? Anyway, I started screwing it in by hand and it got very tight almost straight away. So I started gently winding it in with a spanner. It’s in about half way down the thread now but is getting a bit tighter to turn the spanner than I’m comfortable with to be honest.

 

So I’ve stopped and just thought I’d ask a stupid question before risking snapping it in the block or something. Is this normal for a pinto pressure switch? Is it tight because it’s ‘sealing itself’ using the thread as it goes hence the lack of seal? Do I just keep forcing it until it stops – or is it designed to only sit halfway down the thread?

 

Apologies for the silly question – but I’d rather stop and ask than risk damaging anything. Here is a pic of it’s current state in the block:-

 

 

 

Any advice gratefully appreciated!

 

Cheers

Tony

[Bob Tucker]

Hi Tony,

its a taper thread, designed to self seal.

You could use a wipe of hylomar (or similar)

but it should be fine as is.

[FERRINO]

Hi Tony,

its a taper thread, designed to self seal.

You could use a wipe of hylomar (or similar)

but it should be fine as is.

 

Awesome! Many thanks Bob, I did wonder if that was the case but thought it best to just stop and check.

 

Many thanks once again

Tony