Preoiler systems
09-22-2004, 10:19 AM
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Preoiler systems
Does anyone have experience with preoiler or prelube systems? Here is a link to a system I found using Google:
I'm wondering how hard they are to install and whether they are worth the bother.
I'm wondering how hard they are to install and whether they are worth the bother.
09-23-2004, 02:54 PM
#3
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well a couple things here:
not all have a design flaw. and not all have an oil pump driven by a crankshaft
the rx-8 utilizes an oil metering system which injects oil into the rotor housing for lubrication and sealing purposes. this system squirts oil in every time you start your car right before you start it
check it out for yourself by using the "initializing" step that i and otrhers have talked about. get in your car and turn the igntion to "on" and listen for 3-5 seconds. if you listen close (helps to be in a garage and not outside) along with the lights coming on and going out on the dash and the seat belt chime you can hear some clicking/whiring noises from the engine. thats oil metering in preperation for ignition. also remember we dont have as many bearings and other moving parts that need the lube. so no you dont need that device
ALL internal combustion engines have a design flaw!
The oil pump that pressurizes the lubrication system is driven by the crankshaft.
And every time the engine is started, several hundred revolutions of the crankshaft occur before pressurized oil is present to lubricate the bearings.
This design flaw results in dry bearing abrasion each and every time the engine is started.
The oil pump that pressurizes the lubrication system is driven by the crankshaft.
And every time the engine is started, several hundred revolutions of the crankshaft occur before pressurized oil is present to lubricate the bearings.
This design flaw results in dry bearing abrasion each and every time the engine is started.
the rx-8 utilizes an oil metering system which injects oil into the rotor housing for lubrication and sealing purposes. this system squirts oil in every time you start your car right before you start it
check it out for yourself by using the "initializing" step that i and otrhers have talked about. get in your car and turn the igntion to "on" and listen for 3-5 seconds. if you listen close (helps to be in a garage and not outside) along with the lights coming on and going out on the dash and the seat belt chime you can hear some clicking/whiring noises from the engine. thats oil metering in preperation for ignition. also remember we dont have as many bearings and other moving parts that need the lube. so no you dont need that device
09-23-2004, 11:48 PM
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That still doesnt presureise/ send oil to the bearings that support the e-shaft and rotors, which would be comparable to the main bearings that support a pistons motors crankshaft, which is what that quote was talking about. So yes, we do have the exact same "design flaw". Though they make it out to way more than it is, you still have an oil film on the bearings to protect them.
09-24-2004, 06:45 PM
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The crank bearings still start up with no pressure just like a piston motor. The couating on the rotor housings is like a sponge , it soaks up oil, so there is no abnormal wear in the cumbustion chambers at sart up, just the bearings. That being said it would take a LONG LONG time to wear them out because as i said you sill have a film of oil and there isnt any real load at start up.
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