Austarion

Anyone know off the top of their head what the fitting is on the standard oil pressure sender? I need to get an adapter made up for my aftermarket oil pressure sender from 1/8" NPT to whatever the one on the standard is.

I would check this value myself but I am living in the city apartment and not out with my car in the hills district so I can't check right now.

Any info would be appreciated.

Thanks

I paid $50? for the Specometer 2" electric oil pressure gauge and it came with the sender unit. It also came with an adapter fitting, but I didn't need the adapter in the end.

Bugger. My autometer sender thread isnt the right pitch, goes in about 2 turns and then jams up good. Sigh might end up getting a different gauge then.

If anyone has the info it would still be appreciated

I had a similar situation... I took the old sender out and then tried to put the new one in. It was a bitch I coudn't even get it started! I thought it had the wrong thred on it or something. I compared the thread to the new thread by putting them together and they looks slightly different. But I figured it was due to them being a tapered fitting.
So I tried to screw it in again. It just picked up a thread but it got tight. I thought f*** it, I'll keep on going as it was the only option. IE they were too close to make an adapter. Anyway it was tight for a while, 4 or 5 turns and then it got really tight then I just put another 1/4 turn on it.

Started it up and..... No leak and a good reading on the gauge... Phew.. It was ok.

Now that being said, the Autometer one could be different??? :?

I think the block is 1/8" BSPT (British Standard Pipe Tapered) and you are fitting an NPT fitting in (National Pipe Tapered - American). There are about 1or 2 threads difference per inch (from memory) and as TOMSUN said you CAN just tighten the bugger in. Use thread tape or proper sealant and it won't leak, however it is not really good practice and you could end up stuffing either thread.

Either tap the block to NPT or get an engineer to run a die over the sender. Alternatively i think Speedflow make an adapter. Unfortunately there are no commonly available adapter fittings.

just to confuse things further, I thought the block thread was BSP (non-tapered).
It might even be 10mm X 1.0mm!!!
I will check tonight, if I remember and can find the spare sender.

I'll just take the 2 senders down to enzed and get them to make me an adapter. Thanks

I'll be interested to what they say...

Can you still use the factory sender unit with the Autometer gauge?
Oil pressure doesn't have to be that accurate, you just have to have it... :?

You can also get oil filter sandwhich mounts. Goes between your oil filter and engine block, has two output fittings for common oil temp and pressure guage fittings. No idea how good they are, I've just seen them.

TOMSUN wrote:Can you still use the factory sender unit with the Autometer gauge?

Nope.

SpidersWeb wrote:You can also get oil filter sandwhich mounts. Goes between your oil filter and engine block, has two output fittings for common oil temp and pressure guage fittings. No idea how good they are, I've just seen them.

I've got one of those, but I havent had a chance to fit it, looks like this

If you want to use the factory sender with an aftermarket guage you will need a guage who's range is 0 ohm at 0 psi and 138 ohm is at 80psi.

fr335tyl3r, have you figured this out yet?

If not i went through the same thing a while ago, ended up getting a T piece so i could run both senders, and it had the correct size for the block, the factory sender, and the autometer. I can try and track down a brand and model number if your interested.

I would be interested in the part number if you find it.

there is a lot of info regarding that here:

http://www.starquestclub.com/forums/vie ... er&start=0