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garyhugo
01-28-2017, 02:31 PM
Where can I get a socket that fits our oil pressure sensor. I see it's 1 3/16 inch but all the sockets I find are to shallow. It appears it needs to be at least 3 1/4 inch deep.

KPW
01-28-2017, 02:56 PM
I picked one up from O'reillys this summer for around $7, it was labeled as an oil pressure sensor socket.


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Roadster
01-28-2017, 03:10 PM
You can also try Lisle #13250 found on ebay. Size is 1 1/16", and fits switches up to 2 5/8" long. Just tried mine on the 94 and it fits perfect.

garyhugo
01-28-2017, 03:17 PM
The oil pressure sending unit on my 90 is 1 3/16. It is 3 1/4 inch tall. The sockets at Advance.O'reilly Napa and Harbor freight are all 2 5/8 or 2 3/4 deep.

garyhugo
01-28-2017, 03:21 PM
KPW I'm trying your way of changing out the alternator w/o removal of throttle body. I've got everything unbolted except the oil pressure sensor and battery cable on back of alternator.

Roadster
01-28-2017, 03:42 PM
The oil pressure sending unit on my 90 is 1 3/16. It is 3 1/4 inch tall. The sockets at Advance.O'reilly Napa and Harbor freight are all 2 5/8 or 2 3/4 deep.

I think the size changed in 91....:eek:

Roadster
01-28-2017, 03:50 PM
This one may work.....1 3/16" X 4 1/4" L

http://www.ebay.com/itm/Lisle-Oil-Pressure-Sending-Unit-Socket-1-3-16-3-8-Drive-13150-Made-In-The-USA-/151487836354?hash=item234560f0c2:g:kugAAOSwD0lUciN 6

garyhugo
01-28-2017, 04:25 PM
Thanks roadster. I just ordered it. It arrives on Feb 6. I thought I had everything I needed until that socket turned out to be extra special.

Roadster
01-28-2017, 04:35 PM
No problem Gary, I may be doing the samething with my replacement alternator that is on the car, as the fan blade is rubbing, and no matter what I do about the blade hitting the housing, it doesn't work, or only works for a short time and then the noise is back.....lol
So keep us posted, I may start on it tomorrow......

GOLDCYLON
01-28-2017, 04:44 PM
I picked one up from O'reillys this summer for around $7, it was labeled as an oil pressure sensor socket.


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

That's where I picked up mine

garyhugo
01-28-2017, 04:53 PM
Goldcylon are the oil pressure sensors the same on your 90 and 91?
I'm wondering if a previous owner may have replaced it with something other then stock.

GOLDCYLON
01-28-2017, 05:00 PM
Goldcylon are the oil pressure sensors the same on your 90 and 91?
I'm wondering if a previous owner may have replaced it with something other then stock.

I believe so the "real issue" the replacements used over the years as there are multiple oil sensors that will fit but have different body heights. As such I have 2 sockets for both contingencies. Both I picked up at Oreilly's

Here is why there are different sensor body heights

The GM Part # is:12555492

NIEHOFF OP24471

DURALAST PS206

VALUCRAFT OP8165

garyhugo
01-28-2017, 05:05 PM
Tom, so far everything is going as KPW explained. I only had to loosen the tensioner though to get the lower driver side alternator bracket bolt. It's really a tight space. Used a magnet to keep from dropping the 10mm bolt on the rear bracket.Until I get the oil pressure sending socket I won't be able to wiggle the alternator out and disconnect the power cable.
Gary

garyhugo
01-28-2017, 05:10 PM
Goldcylon unfortunatly ALL my local auto parts stores only had the shorter sockets.Spent 2 hours going to them.
I will have both sockets in a few days though.

Roadster
01-28-2017, 06:27 PM
Tom, so far everything is going as KPW explained. I only had to loosen the tensioner though to get the lower driver side alternator bracket bolt. It's really a tight space. Used a magnet to keep from dropping the 10mm bolt on the rear bracket.Until I get the oil pressure sending socket I won't be able to wiggle the alternator out and disconnect the power cable.
Gary

Sounds good Gary, I will be doing this soon.....appreciated.....

GOLDCYLON
01-28-2017, 08:10 PM
Goldcylon unfortunatly ALL my local auto parts stores only had the shorter sockets.Spent 2 hours going to them.
I will have both sockets in a few days though.

Ok well that works.

Roadster
02-04-2017, 02:27 PM
Gary,

Did the socket get delivered the other day? And how is progress going on the replacement alternator???

garyhugo
02-06-2017, 08:46 PM
Tom,

Just received it today.If I get home early enough I'll do some more during the week,otherwise it will be the weekend.
Did you get yours changed?

Roadster
02-06-2017, 09:33 PM
Gary,

The replacement from Autozone is scheduled to be delivered tomorrow. Decided to do more things in the meantime.
Replacing headlamps, cleaning the wheel well covers, etc., etc.
Also received replacement brushes for the original alternator. I may just rebuild the original, and put that unit back in.....

Glad the socket came, I know you'll be glad to finish that job....

garyhugo
02-11-2017, 05:00 PM
Tom, Is it only me or does everyone have these problems. The socket didn't fit. I then was able to force an adjustable under the water hose and turn it enough to get another bite. I was feeling desperate and if something else broke or was damaged so be it. Well I got it out. Then I checked the socket to the bottom of the sensor and guess what it would not fit the 1-3/16 base period. It was deep enough.I got another 1-3/16 socket and it fit fine.Go figure the new socket I waited to come from california on horse back was out of tolerance so far it wouldn't work.

Roadster
02-11-2017, 06:53 PM
Glad you got that worked out Gary, that question will remain unanswered...lol
It appears that the particular socket you received may have had a problem during the manufacturing process. It would be my guess that the tolerances weren't checked like they should of been. A problem of quality control.
I would send that one back to the ebay seller and get a refund, have them pay for the return shipping if possible...