Ok i posted before about how to get this off. I bought a 1 1/16" deep well socket and put it over the hex and the socket freely turns around without a problem. I called Hahn and they told me they use 1 1/16". Does anyone know of any other way to get this thing off. B/c i cannot come up with anything. My car is 2 hours away from being completed if i can get this sending unit off. Sorry to post about this again but i figure people are finished lookin at my other post. Does it matter if i strip this hex getting it off?? thanks much

Well the 1 1/16" deep well is the correct size to use. Other than that you could use a big wrench. It should come right off.


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current status - No 3rd Gear synchro


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Flame Red SRT-4 GT40,8.5:1 Built Shortblock, Brian Crower Stage 2 Cams, etc etc etc...

a big wrench barely fits in there...its not even easy to get my hands in there...i can reach it from the top but cant fit a wrench in there...i can fit a wrench in from underneath but cant grab it...Hahn tech support isnt any help at all...

The ones I've seen are 1 1/16". I used a 1 1/16" deep well on mine. Maybe you don't have the proper oil sensor. Maybe a previous owner replaced it with the one one. You might test out some other sizes. Just buy several sizes and return the ones that don't fit.


Corbin

'95 ESI-T
HRC+FMIC+ETC...

Corbin
'97 GSX dressed like a '95 ESi

i bought the car new...i flipped it awhile back and maybe something needed replaced then and i didnt know it...ive tried some other sizes but will keep trying...ill post how i get it to work...

yeah, me everyone that I know that has had to take off the oil sending unit has used the 1 1/16" socket.

-97 GS (First project, 299 whp)(sold)
- 97 RS 2.6 last numbers: 306hp, 352tq @16psi (Dead, parted out)
- 99 GS OZ, Hahn Kit, 56k miles (Sold)
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- 00 Nissan Maxima GLE (Daily Driver)
- 02 Audi A4 1.8T Quattro

1 1/16" is the correct size socket, but:

It needs to be REALLY DEEP! A standard deep-well usually won't quite reach. There's a special 1 1/16" socket called a "sensor" socket that's made just for removing these things.

My index finger fits almost completely inside the sensor socket, I can just barely touch the back of it.

Good luck!

i got the oil pressure sending unit off finally. went to Napa and they sell a deep well 1 1/16" oil pressure sending unit socket for 7 bux. so in my case a regular deep well 1 1/16" socket did not work. I assume other people will have this problem in the future. My car is a 98 GS. Hope this helps people out with their install.