Boats For Sale:
Oil Pressure Sending Unit |
Post Reply 
|
| Author | |
cmacbuck69 
Senior Member 
Joined: June-19-2013 Location: Jax, FL Status: Offline Points: 105 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Oil Pressure Sending UnitPosted: May-10-2015 at 12:21pm |
|
In trying to get all of my gauges working properly, I'm having issues with the oil pressure gauge. The engine is a full rebuild that runs solid and the Oil Pressure gauge is stuck on 80 when I crank it up. We replaced the sending unit with a manual gauge and it was right at 60. The sending unit is a new unit form skidim. I think the wiring is correct to the gauge, but looking for any ideas...
|
|
 |
|
|
jhersey29
Senior Member
Joined: February-20-2014 Location: Colorado Status: Offline Points: 272 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 12:46pm |
|
Check the ohms reading at the sender with the wire to the dash detached. Put the wire back on the sender and check it at the gauge. Is it the same or close to the same reading?
|
|
|
|
|
8122pbrainard
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 1:41pm |
|
Chris,
The sender terminal on the gauge is ether shunted to ground or the sender is the same. Get the VOM out and check as recommended above. Was the old sender bad and the reason you put a new one in? |
|
|
|
|
cmacbuck69
Senior Member
Joined: June-19-2013 Location: Jax, FL Status: Offline Points: 105 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 4:22pm |
|
After doing that it appeared I had the signal wire on the gauge connected to the bracket screw that holds the gauge in place. I put it on the S post on the gauge and both ohms readings were the same from testing at both locations. I could not get the engine to turn over for what ever reason to test it though and had to abort for the day... Ladies were starting to get restless...
|
|
|
|
|
cmacbuck69
Senior Member
Joined: June-19-2013 Location: Jax, FL Status: Offline Points: 105 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 4:23pm |
|
Also, I replaced the sender because I thought the old one was bad, but it appears to have been the wiring...
|
|
|
|
|
8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 5:43pm |
|
Chris,
Glad you found where the shunt to ground was. Now the next step with the VOM is why it won't crank. See what you get at the S terminal on the ignition switch and then to the NSS and finally to the start relay I terminal. (with the key turned to start). |
|
|
|
|
jhersey29
Senior Member
Joined: February-20-2014 Location: Colorado Status: Offline Points: 272 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 5:53pm |
|
Nice find. Good luck on the crank issue.
|
|
|
|
|
cmacbuck69
Senior Member
Joined: June-19-2013 Location: Jax, FL Status: Offline Points: 105 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 11:07pm |
|
Thanks for the assist! NSS = neutral safety switch correct?
|
|
|
|
|
8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
Post Options
Thanks(0)
Quote Reply
Posted: May-10-2015 at 11:14pm |
Yup, I should have spelled it out to avoid any confusion. |
|
|
|
|
cmacbuck69
Senior Member
Joined: June-19-2013 Location: Jax, FL Status: Offline Points: 105 |
Post Options
Thanks(0)
Quote Reply
Posted: May-16-2015 at 11:19pm |
|
Good call on the NSS, The wires are good, but the ball must have got hung up, but its all good now.
|
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
cmacbuck69 wrote: