Secret to the Oil Pressure Sender!!!

Ok.....What is the secret to replacing the oil pressure sender. Did a search and it has been a hot topic, people said they knew an easy way to do it..But have yet to see the answer. Please help..I know mine is bad but cannot figure out how t remove it???


Thanks,

Jim

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jevose
82 911 SC

I found a cheap open end wrench that fit it and cut it short to fit in the tight space...

Make sure you use some 'dope tape' or something similar on the new unit threads to seal it...

I replaced mine using a 1" crows foot wrench and extension, leading me to believe that the correct size is probably 25 mm if you can find one. My crows foot is from an older Craftsman assortment that I've had awhile.

Rod Walter
'88 911 coupe

We are talking about the sender on the rear of the motor, to the right of the fan and the left of the A/C compressor (Carrera)? It appears that sender removal on an SC is easier (less in the way). Carrera's are a tight fit.
I spent a lot of time with a Craftsman Crows foot and could not find the room to move it (even after cutting it down to fit the sender). I'm curious as to what crows foot fit well enough to do the job?
Thanks,
Dan Tolley
1987 911 Coupe (a constant 5 bar)

What I did with my '77 2.7 was to remove the oil line to the block fitting that is under the sender unit. Then I took out the hollow bolt that holds the block fitting to the engine. Tightened the block in a vice and had plenty of room to screw out the sender.
hope this helps

Tim in Sac

by this time you could have removed 3 bolts on AC compressor, set it aside, removed 4 bolts on AC mount and removed it. (square plate only), and found plenty of room to get it swapped. if the oil hose is seeping or loose at the crimps, replace it too.

That's what I plan on doing. Why fabricate tools when you can just remove a few items to get it out of the way?

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Mark Szabo
1986 911 Targa 3.2
1987 Escort 5-speed 1.9
The Porsche Owners Gallery

Got it!!!!! Thanks for all the replies. Used a craftsman 15/16 crows foot with about a 1 foot extender. Was actually problem with the right tools, took 30 mins. I have a 3.3 Turbo, so if I can get it anyone can. Thanks again!!!!

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jevose
82 911 SC
88 930 Turbo

That's the tool I started out with. From what I remember I couldn't get the crows foot around the "nut" side of the sender without machining off 1/2 of it's thickness (now it's about 1/4 inch thick). Once it was secure around the nut, there wasn't enough space to actually turn the thing (more grinding?). One side butted up against the motor maount (the big metal plate at the rear of the motor), or the A/c bracket(no, this is not the part you can take off. This is the part that has several bolts tht are inaccessable without motor removal). I think I'm just outta luck with this one.
I will try again once the car is out of storage :-)

Dan Tolley
1987 911 Coupe

I did not have to machine anything....It was tight and took several small turns, but it came off. I have to turn 1/4 inch, remove the wrench and turn another 1/4. After 2 or 3 repetitions, it came off by hand. Now since it has been replaced I developed a small leak around it. Am gonna try teflon tape on the threads to see of that solves the problem.

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jevose
82 911 SC
88 930 Turbo

you got lucky if a crow foot did the job. they're generally on so tight that it's hard to break them loose even if you clamp the lower block in a vise, and really reef on it with a long wrench! that's probably why it leaks upon reinstalling it. not able to tighten it enough with the crowfoot.

Has anyone tried Tim's suggestion (removing oil fitting from base and removing entire assembly) on a 84-89 3.2? Do you have to drain oil first. It's just too tight even when removing air compressor any other way.

That's what I'm going to try. But even removing the block it's attached to appears to be a mighty challenge... I need hands the size of a 3 year old, with the strength of superman, and the toolset from oompa loompa.

Dan Tolley
1987 911 Coupe

Think you'll need to drain some oil first?