C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil Sending Unit

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Old Jul 26, 2010 | 08:00 AM
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Default Oil Sending Unit

Hello All,

Does anyone know where the oil sending unit is located on '84? Are they prone to leaking and easy to replace?

Thanks
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Old Jul 26, 2010 | 08:11 AM
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Usual position is in block behind dist and yes they commonly leak with age
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Old Jul 26, 2010 | 08:30 AM
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Originally Posted by rodj
Usual position is in block behind dist and yes they commonly leak with age
But unless you know for sure its the sending unit do a little more checking.. It could also be the rear of the intake at the China wall or the distributor oil gasket..WW
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Old Jul 26, 2010 | 08:59 AM
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temp is above the oil filter, pressure is on the china wall in the back

Oil Sender


Oil Pressure


Oil Temp
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Old Jul 26, 2010 | 09:32 AM
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Thanks for the info and the pics.

I was able to locate the oil pressure unit and it looks like the middle pic. It's the original unit on an '84 with 44K on the clock.

Where is the oil sender unit located?

I'm getting decent dripping with the engine running coming from the top back of the block. I will check the sources you mentioned.
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Old Jul 26, 2010 | 09:45 AM
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Unless the 84 is different than the 85 the sender should be beside the pressure sensor.
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Old Jul 26, 2010 | 09:53 AM
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When they leak, they leak big and bad since they are under pressure.
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Old Jul 26, 2010 | 06:57 PM
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Originally Posted by Muffin
Unless the 84 is different than the 85 the sender should be beside the pressure sensor.
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Old Jul 28, 2010 | 08:25 AM
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Without removing wiper motor, I was able to see oil on the oil pressure switch. Once I get in there and get a better vantage point, can I determine that the switch is not getting soaked by way of a leaky intake?

Thanks again
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Old Jul 29, 2010 | 11:46 AM
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Removed wiper motor to get at it and sure enough, the sender was soaked and leaking.
Used a plumber's basin wrench to get it out

Thanks for the help!!!!
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