After removing the oil temperature switch as pictured, I purchased a replacement that doesn't fit. I went to NAPA and Advance where I got the same wrong part. The replacement part is bigger and doesn't fit under the distributor cap space. The threads are the same, the replacement part is wider and higher than the part I removed yet it's the part that's supposed to fit a 350? Could the problem be that I don't have the original manifold? Its got me and the parts guys baffled.

Thanks for any help.

The sending unit for a gauge car and a car with idot light are different.
If a gauge car its located on the oil filter casting.

Which do you have?

OLd Fan

Gauge car. The switch screws into the top of the engine near the distributor.

That looks like the unit that screws inthe block down by the oil filter Jim:texas:

The one on top by the distr. is the "choke switch jim at least thats the way they are on my 87 Jim:texas:

You can use an 1/8" npt 45 or 90 degree brass fitting with a short nipple to aim the sender away from the distributor. Should have em at NAPA.

Screw it in up front, just above the timing gear cover on the right side, this will be true oil pressure through the engine, its the last stop before the oil pan:beer:

http://smartpages.nexpart.com/smartpage.php?mfrlinecode=ACD&partnumber=D8032&parttypeid=3358&app=nexpart&packqty=&selldesc=SWITCH%20%20%20E&listprice=58.72&dealerprice=24.57



maybe ????

Short nipple straight pipe as said . ,to place sender out further from block.

Anyone have the part number for the choke light switch, not the oil pressure switch? None of parts places show it, the local Chevy dealer "thinks" they found it but I won't know until Tuesday.

ok the pic is of the oil pressure gauge, the the oil pressure switch below the dist. is for the light.

How about a part #? Anyone?
Thanks

this is the oil pressure switch W/gauge(location is just above the oil filter)PS133. this is the oil pressure switch w/light(location under distributor) ps115

vet When I had my mech. replace my choke lite switch the only # on the repair bill gave a reference # of op6640 don't know if that will help you or not jim:texas:

Part # on delco box for choke lite switch 75G9
#D1885
#8993146
GR.1.150 jim:texas:

Thanks for everyone's help, I picked up and installed the part and all is well now, including the clock that suddenly started working! I attached photos of the part number from the box and the actual new Delco part (made in Taiwan) that was easier to install than the original thanks to that nut on top of the new part for anyone else who might need it.

glad every thing worked out Now it's time to celebrate woo hoo jim