Help to Identify which senders these are?

jeffs9146 · 08:38 AM

I have 4 senders on my 1983 3.0L motor that has been installed in a 914 and I need help with which ones are for which gauge.

The one looking at the fan on the left with two wires going to the oil tensioner cover, the two on the right going to the block and the feed line for the tensioner with one wire each and the one in the back by the transmission.

I need to identify which one operates which guage!

Here are some photos to work with!

Won · 10-13-2011, 09:47 PM

First one is thermo-time switch, one wire heats up the thermostat inside that breaks the continuity checked by the other wire. Used for cold start circuit as flood prevention function, I believe.

Second pic is the oil pressure sender unit that drives the pressure gauge.

Last one is the "idiot switch" for oil pressure warning light.

jeffs9146 · 10-13-2011, 09:58 PM

Great, thats what I needed!! Thanks!! What about the one under the oil pressure sender unit? (no photo) It looks similar to the first one but only has one wire connector and comes strate out of the block at the feed line for the pressure sender!

Quote:

Originally Posted by Won

First one is thermo-time switch, one wire heats up the thermostat inside that breaks the continuity checked by the other wire. Used for cold start circuit as flood prevention function, I believe.

Second pic is the oil pressure sender unit that drives the pressure gauge.

Last one is the "idiot switch" for oil pressure warning light.

Scott R · Scott R's Garage

Quote:

Originally Posted by jeffs9146

Great, thats what I needed!! Thanks!! What about the one under the oil pressure sender unit? (no photo) It looks similar to the first one but only has one wire connector and comes strate out of the block at the feed line for the pressure sender!

Screwed into the passenger side chain cover below the sender? That's the 15c switch for the lambda system. Or are you looking at something else?

kerthunk · 10-14-2011, 06:52 AM

The one directly under the oil pressure sender is the oil temp sender.

jeffs9146 · 10-14-2011, 08:34 AM

Yes so thanks!!

So the large one is the pressure sender, the one below it is the temp sender, the one in the back is the dummy pressure switch and the one next to the dizy is the thurmo switch for the injection!

Got it!!

Thanks everyone for your quick help. This will help me match the guages in the 914-6 conversion wireing!

Quote:

Originally Posted by kerthunk

The one directly under the oil pressure sender is the oil temp sender.