?CKP Sensor Removal?

[mastar91169]

Good day. I am having an issue removing my crank position sensor. I am working on a 1990 SHO MTX and this particular model uses Phillips Head screws to secure the CKP senor to the engine block(the sensor is located behind the timing belt cover at the crank pulley). I have buggered up the screw heads while trying to remove the screws. There isn't much room to work with here so I was wondering if anyone has any ideas as to how I can get these fasteners out. Any input at all is greatly appreciated!

Thank you.

 

[pimp]

i know mechanics hae a special impact screwdriver, used when taking off brake rotors, philips sometimes hold the rotor on, then small tap on the end of the handle with hammer and it sort of shocks the screw and turninig at the same time.of course now you have to try and have the bit that fits just right at this point also.someone will chime in here soon with other suggestions that might work better.good luck.
chris

 

[93rev2sev]

Bust the sensor to smitherines, put a vise grips on the newly exposed screw heads. Don't break off the screwheads or you will be...uh...screwd.

Or, weld the screwdriver bit to the screwheads, use a 1/4" ratchet with the correct adapter and follow the "impact" method outlined above.

tapping(impact) is your friend.

 

[mastar91169]

I like the "Bust the sensor to smitherines" idea. I don't have an impact wrench or a welder. I already have a replacement CPS.

Thanks for the quick response...can't wait to get home to bust this thing up...it's caused me enough frustration as is. I'll try to replace the screws with hex head bolts...the way it should have originally been installed!

-Ryan

 

[gtstang1967]

make sure to correctly gap the new sensor. i believe its a 0.30 gap

 

[mastar91169]

So, I went back and broke off the old CPS sensor, which wasn't very hard to do, and the screws came out fairly easily then. I thought this was going to be a serious problem because of how little room there is to work with. The advice really helped.

I'll make sure to reinstall with the correct gap. Thanks!

 

[93rev2sev]

Dont forget to clean out the threads on the oil pump housing. And use antisieze on the new hardware.

Stainless hardware should be used because you are screwing into aluminum.

 

[mastar91169]

Clean out the threads on the oil pump housing? I didn't take apart the oil pump.

Anybody know where I can view a detailed description on the removal and re-installment of the Camshaft Oil seals, Crank Shaft Oil Seal, and Timing Belt.

Thanks

 

[socialdeviat]

The threads that those screws were removed from are part of the Oil Pump's housing. Its basically half that lower part under the water pump.

There is a great write up on www.shophoenixproject.com

Its their lower 60k write up. Good luck, I can do that tear down and replacement in less than 3hrs and started back up.

 

[mastar91169]

That's the site I was looking for! I looked at it a while ago and forgot about it. It has some great Maintenance guides!

HA, I already have 6hrs into this project and I'm only up to removing the cam and crankshaft seals. I'm expecting to put in another 6-8 hours to put it all back together and start it. This is, however, my first time doing this type of maintenance on this car. I'm also taking my time to do the job right.

Thanks for the advice, it's much appreciated.

 

[93rev2sev]

Doing it "right" the first time you do it takes twice as long. Next time, you will be able to finish in half the time.

Good work!