Oil pressure gauge
#1
"1ST GENS" THE REAL RX-7!
Thread Starter
Join Date: Apr 2005
Location: long island
Posts: 861
Likes: 0
Received 0 Likes
on
0 Posts
Oil pressure gauge
thin morning while driving to work my oil pressure gauge spiked at the high end and stayed there.
If i shut the car off it goes to 0 but as soon as ignition is on its at the max.
Any ideas
its a 12a stock
Jay
1984 FB
If i shut the car off it goes to 0 but as soon as ignition is on its at the max.
Any ideas
its a 12a stock
Jay
1984 FB
#5
Go Hawks!
iTrader: (1)
Join Date: May 2004
Location: Cedar Rapids, Iowa
Posts: 1,933
Likes: 0
Received 0 Likes
on
0 Posts
I think that's for the oil pressure sending unit gilmore03, not the gauge. Mine did this and the cause was a broken wire on the condenser that's connected to the sending unit line and is bolted to the transmission inspection cover on the rear iron. The wire had broken off and was shorting to the rear rotor housing. When the gauge sees less resistance on this line (a short is zero resistance), it goes up, so when it sees zero resistance it goes full scale. It could be the gauge, but I doubt it. I'd suspect the condenser itself (it could short internally...just disconnect it and see what the gauge does) or the sending unit. The sending unit should never go to zero resistance...according to the factory service manual, it should be 102 ohms for full scale.
The shorted wire on mine ruined the gauge. Before this happened, it read about 65 pounds of oil pressure at idle, now it reads less than 30. I verified I still have 65 pounds of pressure with my brother's mechanical gauge.
Rich
The shorted wire on mine ruined the gauge. Before this happened, it read about 65 pounds of oil pressure at idle, now it reads less than 30. I verified I still have 65 pounds of pressure with my brother's mechanical gauge.
Rich
Last edited by 64mgb; 01-03-06 at 11:34 AM.
#6
"1ST GENS" THE REAL RX-7!
Thread Starter
Join Date: Apr 2005
Location: long island
Posts: 861
Likes: 0
Received 0 Likes
on
0 Posts
I was thinking about opening up the cluster and blacking out the side guages.
Can I run new guages in the stereo surround and if so what brand would you suggest quality wise. And looks (retro)
Jay
1984 FB
Can I run new guages in the stereo surround and if so what brand would you suggest quality wise. And looks (retro)
Jay
1984 FB
Trending Topics
#8
"1ST GENS" THE REAL RX-7!
Thread Starter
Join Date: Apr 2005
Location: long island
Posts: 861
Likes: 0
Received 0 Likes
on
0 Posts
Yes when i shut down the needle slowly floats back ot the "0" mark
as soon as i turn the ignition to "on" not even started it shoots back to the 100+++ mark
Jay
1984 FB
as soon as i turn the ignition to "on" not even started it shoots back to the 100+++ mark
Jay
1984 FB
Thread
Thread Starter
Forum
Replies
Last Post