How does one remove this part?

Smokestoomuch · 01-18-2010, 06:01 PM

Rebuilding an '89 supercharged MR2. On the A/C side of the block, toward the belts, there is a part that looks like a brass brass service bell (like you might find on a hotel check-in counter). It has a wire attached to it at the top. Two questions... what is it and how do you get it off? I put a pair of grips to it and the "bell part" just turns but the shaft stays put. It doesn't look like there is enough room to get a spanner wrench underneath the bell and, even if you could, there is no room to turn the wrench. Help!

toyotaspeed90 · 01-18-2010, 06:46 PM

sounds like the oil pressure sending unit..... you can use channel locks, but you will more than likely destroy it....

if you can... there is a spot to take a 12mm wrench on the underside of it... but I don't think I've ever been successful using it while the block is in the car....

You can buy a special tool, but I believe it is Toyota specific (I have 3 oil pressure sockets and none of them fit).... I usually use channel locks carefully and a rag as padding... even then I still destroy it.

mr3 · 01-18-2010, 06:48 PM

When I did my 20v swap I just used channel locks and twisted it off. You don't need to grip it super tight, just tight enough to grab it. It was a little scratched up afterward but it still worked fine.

01-18-2010, 06:01 PM	#1 (permalink)
Smokestoomuch Cage Fighter Join Date: May 2006 Location: Palm Springs, California (SoCal) Posts: 188 Thanks: 16 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (4/100% )	How does one remove this part? Rebuilding an '89 supercharged MR2. On the A/C side of the block, toward the belts, there is a part that looks like a brass brass service bell (like you might find on a hotel check-in counter). It has a wire attached to it at the top. Two questions... what is it and how do you get it off? I put a pair of grips to it and the "bell part" just turns but the shaft stays put. It doesn't look like there is enough room to get a spanner wrench underneath the bell and, even if you could, there is no room to turn the wrench. Help!

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01-18-2010, 06:46 PM	#2 (permalink)
toyotaspeed90 No Skills Join Date: Jun 2006 Location: Bellingham, WA Posts: 2,407 Thanks: 0 Thanked 149 Times in 144 Posts My Google Map iTrader Rating: (0/0% )	sounds like the oil pressure sending unit..... you can use channel locks, but you will more than likely destroy it.... if you can... there is a spot to take a 12mm wrench on the underside of it... but I don't think I've ever been successful using it while the block is in the car.... You can buy a special tool, but I believe it is Toyota specific (I have 3 oil pressure sockets and none of them fit).... I usually use channel locks carefully and a rag as padding... even then I still destroy it.

01-18-2010, 06:48 PM	#3 (permalink)
mr3 unskilled Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 2,408 Thanks: 24 Thanked 98 Times in 93 Posts iTrader Rating: (7/100% )	When I did my 20v swap I just used channel locks and twisted it off. You don't need to grip it super tight, just tight enough to grab it. It was a little scratched up afterward but it still worked fine.