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'67 E-type, low oil pressure... meaning?

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E type ( XK-E ) 1961 - 1975

'67 E-type, low oil pressure... meaning?

 
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Old 06-25-2018, 08:50 PM
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Default '67 E-type, low oil pressure... meaning?

I just took my '67 E-type (90,000 miles on it) about 25 miles to be part of a class on "Sportscars as Art." As I got close to home, I noticed the oil pressure was 0 (no weird noises and temp was at 90 deg, as it usually is on hot days in Dallas). I pulled over and all looked fine. After a cool down, oil pressure back to 25ish and I limped the couple miles home. But now the pressure is at about 22-28 at start up and idle and only 44-48 lbs at 2,500 RPM (and 70 deg). No weird noises. Maybe (I'm looking for it) a little oil in the exhaust. I'm going to have it towed (flatbed) to my mechanic. I trust him, but any ideas what or how bad this may be?
 
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Old 06-26-2018, 02:34 AM
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Originally Posted by Left(near)Side View Post
I just took my '67 E-type (90,000 miles on it) about 25 miles to be part of a class on "Sportscars as Art." As I got close to home, I noticed the oil pressure was 0 (no weird noises and temp was at 90 deg, as it usually is on hot days in Dallas). I pulled over and all looked fine. After a cool down, oil pressure back to 25ish and I limped the couple miles home. But now the pressure is at about 22-28 at start up and idle and only 44-48 lbs at 2,500 RPM (and 70 deg). No weird noises. Maybe (I'm looking for it) a little oil in the exhaust. I'm going to have it towed (flatbed) to my mechanic. I trust him, but any ideas what or how bad this may be?
I assume you're reading this from the dash gauge, in which case step 1 is to get a known-good mechanical gauge on it.


 
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Old 06-26-2018, 10:03 AM
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Originally Posted by 69ots View Post
I assume you're reading this from the dash gauge, in which case step 1 is to get a known-good mechanical gauge on it.
Yep. This is exactly what the mechanic has recommended and I'll be taking it in for that. He suggested I flatbed it in.

Thanks!
 
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Old 06-27-2018, 03:24 PM
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Ditto "69ots" recommendation. Could be a sender issue too.
 
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Old 06-27-2018, 07:51 PM
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My mechanic first said that had it been actual zero oil pressure, the engine would have failed pretty quickly. But now he says there is a chance (whatever that means) that it is more serious. I'd just like to have some idea of what he could find so that if he says I need a $10,000 rebuild, I'll have reason to question it. Not exactly easy to get a second opinion.
 
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Old 06-27-2018, 07:52 PM
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Since the pressure came back up I'd bet it is a lose wire or sensor, you are getting an intermittent problem. Oil pressure rarely goes to zero and comes back up. Normally it goes to zero you hear a load noise and your mechanic gets a nice new addition for his house. But better safe than sorry. My step mother had a '69 XKE and she thought the oil pressure gauge worked like the gas gauge worked. It didn't end well.
 
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Old 07-14-2018, 11:56 AM
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It was the oil pressure sending unit. $340 (+$170 for the flatbed ride) beats the alternative!

Thanks all!
 
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Old 07-14-2018, 12:23 PM
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Congrats!!
 
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Old 02-07-2019, 10:37 PM
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I am looking for a Jag mechanic in the Plano/DFW area. Can you give me the name of yours? Thanks.
 
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Old 02-07-2019, 11:08 PM
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Originally Posted by XLRateMe View Post
I am looking for a Jag mechanic in the Plano/DFW area. Can you give me the name of yours? Thanks.
British Auto Specialists in Ft Worth is who I use (britauto.com). Used to go to a guy in Carrollton, but he was almost twice the price.
 
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Old 02-08-2019, 09:59 AM
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great news that is was only the sender. I had issues with my water temp last summer, the gauge started bouncing then went to zero. I replaced the sender and then the gauge read 200 - 215 on warm days. I went through 2 new senders until the temp read properly. I added a stick on temp strip to the water jacket near the thermostat to always have a "real" reading.
 
 
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