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Registered
Join Date: Nov 2008
Location: Toronto
Posts: 458
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Another "Oil light on!" 87 Carrera
Hi all,
I searched old threads but couldn't find an absolute answer. I recently finished an engine refresh and reseal and it definitely gave me a sense of accomplishment. However I have a problem with the oil light coming on when the engine is warmed up at idle. The light goes off when engine speed increases and comes back on again at idle. Again, it only does it when it's warm. Analog needle is normal. Brad Penn 20W50. Prior to engine removal, I did not have a problem. During the refresh I replaced the switch on the top of the engine with the red colored one purchased from our host. Has there been a problem with these switches? Should I do a partial engine drop and try a new switch? TIA Here's some before/after pics for fun:   
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'87 911 GP White "casper" '79 930 Copper Brown Metallic "beast" '93 968 Amazon Green Met "moby" '97 Esprit V8 "flat eric" '97 993 Speed Yellow "tbd" |
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02-17-2011, 10:39 AM
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Registered
Join Date: May 2003
Posts: 3,346
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If you still have the old switch, you could try that. The owners manual says it's ok for the light to be on at idle, but I don't like it. Adding cam line restrictors (search for it) will raise your idle oil pressure, perhaps enough to keep the light off.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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02-17-2011, 11:09 AM
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Registered
Join Date: Nov 2008
Location: Toronto
Posts: 458
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Wow I never noticed that in the owner's manual. I'll go with the restrictors because I too don't like this light being on at idle. Thanks for the tip.
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'87 911 GP White "casper" '79 930 Copper Brown Metallic "beast" '93 968 Amazon Green Met "moby" '97 Esprit V8 "flat eric" '97 993 Speed Yellow "tbd" |
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02-18-2011, 03:11 AM
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Registered
Join Date: Jul 2010
Posts: 1
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In Europe, we do have some issues with crappy oil pressure switches...
I would try to get a new switch from Porsche. The few €$ĄŁ it costs should be worth the try 
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02-18-2011, 12:00 PM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,020
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Quote:
Oh and it will make a sizable jump in the idle pressure.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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02-18-2011, 12:08 PM
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