Aight, I'm going to start a new thread just to get conformation that I'm not going to buy another adapter for no reason. Background... I am installing an autometer oil pressure and oil temp gauge in my car. After doing some research on gallery plugs vs. oil sandwich adapters (to include FAQ's and searching) I went with the oil gallery plug route (P/N 11024AA210) purchased two.

I was under the impression that this was the plug I needed so that the autometer sender units (thought to be NPT) would screw into the oil gallery plug (plug back into the block, one under IC, one under Alt) Turns out this is not the case. The subaru gallery plug inner threading appears to be NPT and the Autometer sender units appear to be BSPT. I thought the autometer stuff would be NPT but it is clearly tapered toward the top of the sender. (see pic)

And furthermore, this plug http://www.isspro.com/proddetail.php?prod=R7965 is for a NPT adapter which wouldn't work either.

Attached some pics to show the tapering on the autometer senders. I can get the senders to bite and maybe grab one thread on the gallery plug but I can tell if I keep turning I'm going to rethread something :lol

http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/OiltempsenderOilPressuresendergalle.jpg
http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/OilGalleryplugandsensors.jpg

So what next? I'm thinking I should just retap the inside thread of the oil gallery plug so that its compatible with the temp/pressure senders. It's just odd because everything I've read seems backwards to my situation thread wise.

My comments are probably not going to be too helpful, given that I did the same thing over 3 years ago. Nevertheless:

(1) Regarding the placement of the sender, especially the oil pressure sender, I would highly recommend connecting a steel hose (not sure what the proper name is anymore, but you should be able to find a steel hose made for this kind of temperature & pressure range in automotive specialty parts store). I went with this route because the oil pressure sender seemed massive enough to potentially cause problems to the fitting as it vibrates. The sender can then be mounted such that the fittings are not loaded.

(2) Regarding the NPT to BSPT, I vaguely recall looking for NPT-BSPT adapters in both www.mcmasters.com and a specialty automotive store (not the generic Pep Boys, Kragen, etc.).

Good luck

well i did the same thing oil pressure in the gallery plug under the intercooler and same thing the sender didn't fit, so what you have to to is rethread your sender my man. Go to sears get a metric tap and dye set (however you spell it) and then problems solved. Fit perfect, no leaks, no worries for me. Don't retap the inside of your plug, just make new threads on your sender, well thats just me saying it and its your opinion in the end

I had this problem along with the problem of the sender being too big and I just bought the $50 relocation kit from www.wrxtra.com and the install was a snap. The part number listed on the scoobiemods install is a bspt and not npt even though they said it was. I had to waste $11 on the adapter and all the time tapping it again to findout my sender wouldn't fit.

(1) Regarding the placement of the sender, especially the oil pressure sender, I would highly recommend connecting a steel hose (not sure what the proper name is anymore, but you should be able to find a steel hose made for this kind of temperature & pressure range in automotive specialty parts store). I went with this route because the oil pressure sender seemed massive enough to potentially cause problems to the fitting as it vibrates. The sender can then be mounted such that the fittings are not loaded.

I think I'll do the oil pressure remote relocation thing, the instructions hint at remote mounting for high rpm applications or on race engines so I can see the oil pressure sender being damaged quicker if screwed into the block even on our silky smooth reving boxer engine :lol:
As for the adapter, I am trying to avoid using one (one less place to leak) I think I'm going to try Fhantoms advice; I need an excuse to go to Sears anyway!
So am I right by assuming the threads on the Autometer sending units are BSPT or are they NPT? Still trying to figure that one out so I know what I need to rethread too. Does NPT have a taper to it? (as shown in pics) And the inner threading of the Subaru gallery plug is NPT or BSPT? Once I get these questions answered I'll know what to rethread too.

Thanks for all the help guys!

The threads on the inner part of the gallery plug that take the sensor are BSPT and the threads on your Autometer sensor are NPT. I have a Defi oil temperature sensor installed in my oil gallery with BSPT threads and it worked with the Subaru oil gallery plug just fine. They sell an NPT oil gallery plug for Autometer sensors but I don't remember the site, just do a search or something.

The threads on the inner part of the gallery plug that take the sensor are BSPT and the threads on your Autometer sensor are NPT. I have a Defi oil temperature sensor installed in my oil gallery with BSPT threads and it worked with the Subaru oil gallery plug just fine. They sell an NPT oil gallery plug for Autometer sensors but I don't remember the site, just do a search or something.

search? :lol: as in the adapter I linked in my original post? http://www.isspro.com/proddetail.php?prod=R7965
I think part of my problem was I read too many posts and questions dealing with the subject, some not so clear and some just plain wrong, biggest one being that the gallery plug would fit the senders (which they didn't) so I wasn't sure if something had changed or not, come to find out ppl were probably comparing what worked with the Defi vs. Autometer.

Aight, so if you have Defi senders the Subaru gallery plug P/N 11024AA210 will work because the threads match, if you have Autometer you need to buy the NPT adapter or one of the remote kits. Ok well thanks for clearing up the confusion ppl. Sounds like I'll buy the NPT adapters, looks like I have 2 stock Subaru oil gallery plugs for sale, anyone? :)

No, I am talking about this adapter, which even comes with the much needed washer like the Subaru one does which keeps it from leaking.

http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=38

The different threads are so confusing that they even incorrectly state on that page that it will work with Defi gauges. This one will work, or the one you linked, if the outer threads are the same size as the Subaru plug, just make sure you don't forget that washer if you get the other one.

just another note. yea, don't mount that sending unit to your engine :D i had that same one on my Toyota truck and the ****en thing broke off in my engine :D talk about a mess :D the cause of it was the stupid speed bumps at the vagas hotel :D I went to valet park my truck and the whole side of my truck was dripping in oil :D (autometter was super cool about it, and got me a replacement ASAP along with a remote location kit :D )

i fixed it there, but they wouldn't valet park it :D :D
pic of the said truck :D
http://www.camotoy.com/84toyota/images/smIMG_1599.jpg

:lol: I'm sure the valet guy was like, "Um...seriously??"

I'm ordering a remote relocation kit today. I guess the WRXtra one will do the trick, probably aren't too many options out there unless I just want to go put one together for half the cost except when you factor time=money and I'm worth at least 25 bucks an hour, so I guess it equals out :p

yea, i got the WRXtra one also. wasn't worth my time to build it :D

and yea. i love taking that truck to dinner and valet parking it :D luckily the GF has fun with it too :D

Shane

I'm ordering a remote relocation kit today.

You realize that "remote location" = this (http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=34) ($50) not this (http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=38), ($25) right? Just checkin'...

Just for the record, the Subaru 1/8-28tpi BSPT part can be re-tapped to the required North American 1/8-27 NPT. Even though they are nominally the same diameter, the taper means there's plenty of 'meat'. I did both temp and pressure that way and they've held up for ~3yrs so far. But I agree that remote locating the (top-heavy) pressure sender is a good idea.

You realize that "remote location" = this (http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=34) ($50) not this (http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=38), ($25) right? Just checkin'...

Just for the record, the Subaru 1/8-28tpi BSPT part can be re-tapped to the required North American 1/8-27 NPT. Even though they are nominally the same diameter, the taper means there's plenty of 'meat'. I did both temp and pressure that way and they've held up for ~3yrs so far. But I agree that remote locating the (top-heavy) pressure sender is a good idea.

Yeap bought one this afternoon, and I also realize that WRXtra's "block adapter" is about 3x's more expensive than isspro's at $24 vs. $8 just FYI for future searchers.

Thanks for the info on the gallery plug, my first plan was to retap the plug but I was actually told by a mech that he wouldn't advise doing so because of the closeness of the threads not giving the bit enough "meat" to re-thread, especially when dealing with oil at PSI. Good info, plus adds another option since you've been there/proven that.

*Update

Just wanted to add a few comments, first the WRxtra remote kit came with everything you need to install a NPT sender and all threads come pre-coated and has a rubber o ring and crush washer.

Pretty simple install, remove alternator...
http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/Alternatorremoved.jpg?t=1183330775

Remove stock gallery plug and install new "block adapter" with remote line...
http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/Remoteinstalled.jpg

Put everything back together...
http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/OilRemote.jpg

Fire her up, check for leaks.... all checks good. :thumbsup
http://img.photobucket.com/albums/v357/Wrenhaven/Car%20Pictures/OilPressure.jpg

Just need another gallery plug NPT block adapter and I'll have my oil temp gauge finished too.

What do you do with the stock sensor under the alternator? Does unplugging cause the oil light to stay on?

No, unplugging it causes the light to stay OFF

No, I am talking about this adapter, which even comes with the much needed washer like the Subaru one does which keeps it from leaking.

http://www.wrxtra.com/catalog/product_info.php?cPath=21_25&products_id=38

The different threads are so confusing that they even incorrectly state on that page that it will work with Defi gauges. This one will work, or the one you linked, if the outer threads are the same size as the Subaru plug, just make sure you don't forget that washer if you get the other one.


+1 for WRXTRA products:banana:.....but Autometer..:furious:..go elsewhere. I am on my third oil pressure sending unit. I can't wait until I have a little extra $$, I'm going with prosport gauges. just my opinion,

have you at least emailed autometer? they will usually send you a new sending unit for free. if you don't like them, get the new unit then sell on here.
but, i had one issue with a sending unit, they replace it, and its been good for the past 4 years. been on three different trucks too.

Shane

have you at least emailed autometer? they will usually send you a new sending unit for free. if you don't like them, get the new unit then sell on here.
but, i had one issue with a sending unit, they replace it, and its been good for the past 4 years. been on three different trucks too.

Shane

Not to steal the thread, but yes I did contact them. First when my gauge showed up with NO sending unit in the box, and twice when the units failed....one was DOA. Just bad luck on my part....maybe.....I only had to pay for the last one, which is currently sending erratic signals and doesn't come close to showing proper pressure until the car is hot. The post is loose on the sending unit, and I'm waiting until its dead to get another....

i have a prosport oil press gauge already hooked up to the rear gallery under the intercooler with the wrxtra kit. would it be possible to hook up my new oil temp gauge under the alternator with another wrxtra kit. or do i need to switch the oil pressure gauge to under the alternator.

i have a prosport oil press gauge already hooked up to the rear gallery under the intercooler with the wrxtra kit. would it be possible to hook up my new oil temp gauge under the alternator with another wrxtra kit. or do i need to switch the oil pressure gauge to under the alternator.
personaly i think a temp gauge should be "in the stream" as it were. not at the end of a deadended line where ambiant temps may influence it

now would the same go for hooking up defi guages, can i go to the top of the block?

Aside from installing it under alternator, has anyone installed oil gallery plug under the IC location?

Aside from installing it under alternator, has anyone installed oil gallery plug under the IC location?
yes, bit of a pain but doable. just remove everything thats in your way and take your time

When you remove the stock oil pressure sensor under the alternator...do you need a new gallery plug (like the OP posted from Subaru) or is the stock sensor already using the same plug?

Sorry just confused as I read some threads about buying 2 of them (for under alternator and under IC) but it would seem like you only need 1 since the stock sensor under the alternator should have one already.

Thanks.

Im thinking of just getting the galley plug with the tap on it? Do you really think the sending unit i have the aem would snap off...?

Quick question- I have a oil Temp gauge coming in (mad dad, 1/8 NPT). I have the galley plug here ready to go under the alternator. Is there enough space for the oil temp sending unit without a remote line?

Quick question- I have a oil Temp gauge coming in (mad dad, 1/8 NPT). I have the galley plug here ready to go under the alternator. Is there enough space for the oil temp sending unit without a remote line?

Do you have the Subaru oil gallery plug? If so, that oil sensor you're getting won't work with it. The Subaru oil gallery plug thread is 1/8 BSPT, not NPT.

Nope, they sent my a galley plug that's threaded for 1/8NPT.

The Subaru plug and stock sensor will be coming out.