Replacing Oil Pressure Sending Unit (1/6) 11/2/08 3:06pm 
Kenny78
Gold MemberSend Private MessageToms River, NJ - USAVette(s):
1978 Silver Anniversary Coupe Lt. Biege w/ Dark Brown Int. Happily owned since 1981.Joined: 7/28/2004Posts: 116Hey Gang,
I want to replace the O.P. sending unit. To be sure, is it the part above the oil filter that "screws" into the block ad has an electrical wire connected to it? If so, do I need to drain the oil first? The reason is due to flucuations with my oil pressure. It will range from 40# to 60# and sometimes the needle flutters in between. Thanks. Our Sponsors help support C3VR
Replacing Oil Pressure Sending Unit (2/6) 11/2/08 3:56pm 
suncountry
Lifetime MemberModeratorSend Private MessageMoses Lake, WA - USAVette(s):
1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust IIJoined: 4/16/2005Posts: 2134Yes the sender is just above the oil filter.
No, you don't need to drain the oil. You might get a little out of the sender, couple of drops. Are you sure its the sender? have you checked the connections to make sure they are clean. You might want to try and find a friend with a mechanical pressure gauge that could do a check for you first. Just to make sure there is nothing going on with the pump or relief valve.
You might also check to see if one of the members are near by you. They may be able to help out with the test. Let us know how it goes
suncountry2008-11-02 16:08:56 Replacing Oil Pressure Sending Unit (3/6) 11/2/08 4:58pm Kenny78Gold MemberSend Private MessageToms River, NJ - USAVette(s):
1978 Silver Anniversary Coupe Lt. Biege w/ Dark Brown Int. Happily owned since 1981.Joined: 7/28/2004Posts: 116 What & where is the relief valve? Never heard of that. Thanks for the info so far.
Replacing Oil Pressure Sending Unit (4/6) 11/2/08 6:58pm suncountryLifetime MemberModeratorSend Private MessageMoses Lake, WA - USAVette(s):
1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust IIJoined: 4/16/2005Posts: 2134 The relief is in the oil pump. Here is an artical on oil pumps.
Replacing Oil Pressure Sending Unit (5/6) 11/2/08 7:58pm Check your wiring first to make sure that it is not shorting to ground some where.
John
Replacing Oil Pressure Sending Unit (6/6) 11/3/08 6:32am It'll leak a little oil not bad,whenyou have it off poke a little screwdriver in the hole and wiggle it around,ocassionally some gunk settles in there that can end up inside the sender and foul it up______________
C3VR Lifetime Member #93
Our Sponsors help support C3VR
