| Author |
Message |
Steve Magnusson (91tr)
Member
Username: 91tr
Post Number: 905
Registered: 1-2001
| | Posted on Saturday, August 10, 2002 - 11:50 am: | |
Mitchell -- I don't know how literal you're being, but the engine oil pressure sender is a variable resistor (not a voltage generating source) so to measure a voltage you'd need to devise some electrical setup (like the stock stuff) where the voltage you're measuring reflects the resistance of the sender (sorry if this is already what you meant).
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George Daina (Oof_n_goof)
New member
Username: Oof_n_goof
Post Number: 27
Registered: 7-2002
| | Posted on Saturday, August 10, 2002 - 11:30 am: | |
I am not familiar with the Ferrari lubricating system, nor the location of the oil pump, but I can tell you how I pre-lubed the Chevy engine....I gutted a distributer....the distributer's shaft mates with the oil pump, bolted the base down to the intake manifold, and attached a heavy duty, 1/2" drill to the top portion of the shaft...ran the drill for about two minutes, and when all the lifters were pumping oil, observed the oil pressure on the gague....u can attach a gague while the engine is on the engine stand. |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1746
Registered: 2-2001
| | Posted on Saturday, August 10, 2002 - 9:47 am: | |
That would work, however it is unnecessary if you have done everything correctly along the way. If I were going to go that far, I would attach a pressure gauge to determine the ammount of pressure. |
Mitchell Minh Le (Yelcab1)
Member
Username: Yelcab1
Post Number: 257
Registered: 11-2001
| | Posted on Saturday, August 10, 2002 - 8:50 am: | |
Since the engine is still out, and I really want to know the integrity of the oil system, this is what I am proposing to do.
1. Attach fly wheel, oil hoses to radiator and back, oil filter.
2. Attach starter
3. Fill engine with oil
4. Connect a battery and jump the solenoid
5. Let the starter spin the motor for a good minute
I should be observing;
1. Engine oil pressure by a voltage signal on the oil pressure sender attached to the oil filter housing.
2. Presence of oil in the passages, the hoses, the filter, and the cam shaft (if I open up the valve covers again)
Then I will know that the oil pump works, the sender unit works, and all oil passages are ok.
Any other thoughts?
M |
Bill Sebestyen (Bill308)
Member
Username: Bill308
Post Number: 301
Registered: 5-2001
| | Posted on Thursday, August 08, 2002 - 8:25 am: | |
Mitchell,
The easiest way to pressurize the system, without actually starting it, is to pull the plugs and let the starter motor turn the engine over for perhaps 15 seconds or so. Removal of the plugs will eliminate the compression load and make it easier for the starter to turn the engine over. You won't build up full pressure, but should be able to pressurize the oil system enough to gain confidence that there are no major oil leaks. Leave the accelerator pedal alone during this test, as you don't want raw fuel pumped into the cylinders and watch your oil pressure gauge. If everything looks good, replace the plugs and go for a start. |
'75 308 GT4 (Peter)
Intermediate Member
Username: Peter
Post Number: 1928
Registered: 12-2000
| | Posted on Thursday, August 08, 2002 - 12:07 am: | |
I don't remember seeing that in the WSM, what page was it?
Frankly, I don't see this as very practical or useful. If you've made absolutely sure that the passages are clean and clear (you've washed out with solvent and blown out with air), you should have no worry in its flow and distribution. |
Mitchell Minh Le (Yelcab1)
Member
Username: Yelcab1
Post Number: 253
Registered: 11-2001
| | Posted on Wednesday, August 07, 2002 - 2:35 pm: | |
In the WSM, there is a section about pressurizing the engine with positive oil pressure and observing that oil gets to all the right places in the camshafts and passages. How does one do this effectively and not make a huge mess? |