 oil lamp, when does it light? |
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| starman |
 Apr 13 2009, 11:16 PM
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#1
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Newbie  Group: Members Posts: 20 Joined: 14-February 09 From: Denmark Member No.: 10,050 Region Association: Europe  |
Hii
I finally got the engine running in my 914 1.7. ive been through all the electric, and everything should be working, but what about the oil lamp? It a green lamp, normally it red and lights until the engine is running with oil presure, when does it light on a 914? I testet the light by grounding the wire by the indicator on the engine . Then it lights up, there is no light before or after the engine started. Ive just changed the oil, and the car has been idle for a year, but i think it was running long enough to activate the pressure switch and get the oil through the engine. (i filled the filter before mounting it) |
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| ejm |
Apr 14 2009, 04:17 AM
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I can see the light at the end of the tunnel Group: Members Posts: 2,691 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
QUOTE(starman @ Apr 14 2009, 01:16 AM)  I testet the light by grounding the wire by the indicator on the engine . Then it lights up, there is no light before or after the engine started. The OP switch closes the circuit to ground when there is no pressure. If you ground the wire at the switch and the light works you have a bad switch. |
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| Spoke |
Apr 14 2009, 05:51 AM
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#3
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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(IMG:style_emoticons/default/agree.gif)
Test your switch with an ohmmeter with the engine off. Connect one lead to the switch and the other to battery NEG. You should read 0 to a couple of ohms. If higher reading is observed, the oil pressure sender unit is bad and needs replaced. |
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| CliffBraun |
Apr 14 2009, 09:37 AM
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#4
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Member Group: Members Posts: 252 Joined: 26-April 06 From: San Luis Obispo,ca Member No.: 5,933 Region Association: None |
Yup, mine comes on with the key and turns off as the engine starts(or after a bit of cranking (IMG:style_emoticons/default/sad.gif) ). Incidentally, from what I've heard it's more of a "you're fucked" light than anything. The pressure threshold is low enough that bad things are already happening if it comes on while you're running.
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| ConeDodger |
Apr 14 2009, 10:10 AM
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#5
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Apex killer! Group: Members Posts: 23,587 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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4-8 psi IIRC. If it comes on at idle it is a concern but not catastrophic. It can mean a number of things and you should figure out what and fix it. If it comes on at RPM and you hear noises... Get ready to build an engine.
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| Shade Tree |
Apr 14 2009, 11:10 AM
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#6
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Member Group: Members Posts: 260 Joined: 18-December 08 From: Springfield, Oregon Member No.: 9,860 Region Association: Pacific Northwest |
My oil light doesn't come on when I turn the key. A PO has it wired to the driver's door switch! It lights up nice and bright when I open the door. (IMG:style_emoticons/default/headbang.gif)
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| SGB |
Apr 14 2009, 10:11 PM
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#7
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just visiting Group: Members Posts: 4,086 Joined: 8-March 03 From: Huntsville, AL Member No.: 404 Region Association: South East States |
QUOTE(Shade Tree @ Apr 14 2009, 12:10 PM) A PO has it wired to the driver's door switch! no shit? awesome! |
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