Does anyone else's oil pressure sending unit leak ?? I've replaced mine at least 5 times in the last few months and even brand new ones leak!! I always get the Wells brand from Autozone. Are the genuine ACDelco ones any better ? The stock one I got leaks too...

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1991 Z28 5.7 TPI

ZZ4 heads, ZZ4 cam, Harland Sharp roller rockers, Accel base, SLP siamesed runners, 52MM SLP Throttle Body, Hooker Headers, Flowmaster catback, MSD6A ignition, Home made ramair system, aluminum driveshaft, WC 5-speed etc

 

Do you read the topics before you post? If you would have looked at the fourth one down (at the time you posted) you would have saw the topic that said "I think my oil sending unit is leaking."

 

Doh! Of course I saw it. The dude is asking what's leaking and how to fix it. What *I* am asking if anyone else has bad luck with the Wells sending units or is it just me.

 

maybe your pipe leading out of the block to the oil pressure sending unit is cracked or maybe the connection is cracked. you should look into things a little bit when you buy your 2nd part and it does the same as when you had the original part in it.
Andrew

 

Well there's no pipe since it threads into the block. I got a new block now and a brand new sender. The pressure is up to par in the 50-60 psi range but it leaks

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1991 Z28 5.7 TPI

ZZ4 heads, ZZ4 cam, Harland Sharp roller rockers, Accel base, SLP siamesed runners, 52MM SLP Throttle Body, Hooker Headers, Flowmaster catback, MSD6A ignition, Home made ramair system, aluminum driveshaft, WC 5-speed etc

 

dab a little thread locker on it and see if that works
Andrew

 

yo, im the dude with the other leaky oil sending unit. Like the other dude said dab some of that crap on there cuase the threads might be worn

 

Two words.... Teflon Tape.

 

Here's another two words... PST LiquidTeflon, by Permatex. I use that to seal the threads whenever I install any fitting or bolt that goes into a liquid filled cavity (oil, coolant, etc). The problem is, the oil is coming out of the end of the sensor where the plug goes in. There's not a whole lot I can do about that except put some silicone on there maybe. I think I'll try that.

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1991 Z28 5.7 TPI

ZZ4 heads, ZZ4 cam, Harland Sharp roller rockers, Accel base, SLP siamesed runners, 52MM SLP Throttle Body, Hooker Headers, Flowmaster catback, MSD6A ignition, Home made ramair system, aluminum driveshaft, WC 5-speed etc

[This message has been edited by crucial (edited November 17, 2001).]

 

Try the AC DELCO oil sending unit they last longer and are not that expendsive I havenot seen a wells part that I would give to anyone I like.

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