87 low oil pressure Update lost the plug
01-07-2016, 02:24 PM
#76
Instructor
Yes what Roger said this is a simple procedure .
\NOTE the pins are not driven into the oil ports either,
rather they are placed and will stay in position till the caps are installed.
These hold them from being pushed out.
I have no way to suggest that your engine could already have the pins in it the only way to find out is to remove the cam covers.
The only clue that you might have old style plug pins is that your oil pressure wont get to 5 bar and warm idle will be lower than 1 1/2.
This would indicate a leak down in oil pressure,
dont keep driving it like this as bearing damage could occur
\NOTE the pins are not driven into the oil ports either,
rather they are placed and will stay in position till the caps are installed.
These hold them from being pushed out.
I have no way to suggest that your engine could already have the pins in it the only way to find out is to remove the cam covers.
The only clue that you might have old style plug pins is that your oil pressure wont get to 5 bar and warm idle will be lower than 1 1/2.
This would indicate a leak down in oil pressure,
dont keep driving it like this as bearing damage could occur
01-07-2016, 04:58 PM
#77
Team Owner
Thread Starter
^^^ in the 87 that started this thread ,
the oil pressure returned to what expected readings would be,
in a properly operating system.
the oil pressure returned to what expected readings would be,
in a properly operating system.
01-07-2016, 05:54 PM
#78
Instructor
Similar to the following comment...
...I suspect the same about this car.
So I was more curious about the current status of the car/oil-pressure-readings now that it's been operating for awhile after your repair.
...I suspect the same about this car.
So I was more curious about the current status of the car/oil-pressure-readings now that it's been operating for awhile after your repair.
01-07-2016, 07:28 PM
#79
Instructor
While I'm at it I'd like to state how disappointed I am in retrospect with the garage I chose for the PPI when deciding to buy this car.
Nothing was said about the low oil pressure readings on the dash gauge, either by the seller during my initial questioning or when the owner of the garage was going over the inspection report after having "completed" the PPI.
It was one of the first things I noticed though when taking the car for my initial test drive, and was the reason I requested an additional oil pressure test with a mechanical gauge in place of the oil pressure sending unit. At that point I relied on the owner of the garage to know what a proper oil pressure reading should be on his gauge, and he said the oil pressure reading at idle in his opinion appeared normal.
Based on that, it was suggested that the low oil pressure readings on the dash gauge were a result of either a faulty oil pressure sending unit or the poor condition of the wiring at the OPSU electrical connector, both of which I have now addressed (repaired wiring and replaced OPSU).
That said, it seems the MAIN thing the shop owner paid attention to during the entire process was accounting for every last minute spent for his services on the subsequent bill.
Nothing was said about the low oil pressure readings on the dash gauge, either by the seller during my initial questioning or when the owner of the garage was going over the inspection report after having "completed" the PPI.
It was one of the first things I noticed though when taking the car for my initial test drive, and was the reason I requested an additional oil pressure test with a mechanical gauge in place of the oil pressure sending unit. At that point I relied on the owner of the garage to know what a proper oil pressure reading should be on his gauge, and he said the oil pressure reading at idle in his opinion appeared normal.
Based on that, it was suggested that the low oil pressure readings on the dash gauge were a result of either a faulty oil pressure sending unit or the poor condition of the wiring at the OPSU electrical connector, both of which I have now addressed (repaired wiring and replaced OPSU).
That said, it seems the MAIN thing the shop owner paid attention to during the entire process was accounting for every last minute spent for his services on the subsequent bill.
01-07-2016, 07:39 PM
#80
Captain Obvious
Super User
Super User
Factory gauges are usually not that accurate so the garage didn't really do anything wrong. The pressure wasn't alarmingly low so there was no real reason for a concern. In all fairness, you are still not 100% sure yet if you actually have a lower than normal pressure situation. You need to get your hands a little more dirty before declaring this a problem. One way to be sure is to hook up an analog gauge and check.
01-07-2016, 11:42 PM
#81
Team Owner
Thread Starter
another quick test is to pull the dipstick,
and put some lamp cord into the tube,
drip the oil onto some black cardboard,
go look at the oil in the sunlight, with a magnifying glass,
see if it has metal in it.
The reason not to use the dipstick is that it scrapes off lil bits of metal every time it pulled through the tube
and put some lamp cord into the tube,
drip the oil onto some black cardboard,
go look at the oil in the sunlight, with a magnifying glass,
see if it has metal in it.
The reason not to use the dipstick is that it scrapes off lil bits of metal every time it pulled through the tube
01-08-2016, 10:35 AM
#82
Instructor
Factory gauges are usually not that accurate so the garage didn't really do anything wrong. The pressure wasn't alarmingly low so there was no real reason for a concern. In all fairness, you are still not 100% sure yet if you actually have a lower than normal pressure situation. You need to get your hands a little more dirty before declaring this a problem. One way to be sure is to hook up an analog gauge and check.
So while I'm not declaring that my oil pressure is currently alarmingly low, it seems it's already been established that it is, and was at that time, lower than normal, which someone who works on Porsches for a living in my opinion should have recognized.
01-08-2016, 02:31 PM
#83
An analog gauge is what I was referring to with "mechanical gauge" in my previous post.
So while I'm not declaring that my oil pressure is currently alarmingly low, it seems it's already been established that it is, and was at that time, lower than normal, which someone who works on Porsches for a living in my opinion should have recognized.
So while I'm not declaring that my oil pressure is currently alarmingly low, it seems it's already been established that it is, and was at that time, lower than normal, which someone who works on Porsches for a living in my opinion should have recognized.
Each car, each gauge is going to be different. Different oils are going to give you different pressures. First find out if you have an issue and then act accordingly. If I had a car come in for a PPI and it showed hot idle at 1 bar and running at 4 bar, I'd not blink twice. Now if the car came in and you could clearly hear lifter clack after a bit of driving, I'd make a notation of that.
01-08-2016, 04:39 PM
#85
Basic Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
5 total - 2 one side and 3 the other.
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
01-08-2016, 06:32 PM
#87
Instructor
Don't bet on that and don't jump the gun either. That's the first post I've seen of Imo's where he's 100% correct.
Each car, each gauge is going to be different. Different oils are going to give you different pressures. First find out if you have an issue and then act accordingly. If I had a car come in for a PPI and it showed hot idle at 1 bar and running at 4 bar, I'd not blink twice. Now if the car came in and you could clearly hear lifter clack after a bit of driving, I'd make a notation of that.
Each car, each gauge is going to be different. Different oils are going to give you different pressures. First find out if you have an issue and then act accordingly. If I had a car come in for a PPI and it showed hot idle at 1 bar and running at 4 bar, I'd not blink twice. Now if the car came in and you could clearly hear lifter clack after a bit of driving, I'd make a notation of that.
And I'm only basing "lower than normal" assessment and the possibility that I need to do the journal pins on the similar pressure reading observations I've read in this thread (and from other additional sources), and the fact that there's actually a callout for the pin update.
Thank you all for your input.
