Changing the oil
Sep 8, 2005 | 04:24 PM
#1
Thread Starter
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Pro Rider
Joined: May 2005
Posts: 302
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Changing the oil
I have always let my quad idle when the plug is out so that it will shoot out all of the oil and also when I change the filter, but someone told me this is bad and i think theyre full of it. what do all of you guys do, because ive been doing this for a long time
Sep 8, 2005 | 04:27 PM
#2
Range Rover
Joined: Aug 2005
Posts: 110
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Changing the oil
If you let your bike idle with no oil then yes it is bad. I am not sure for a z400 but can only assume that there will be almost no oil being pumped up to the cams. Plus the clutches which are spinning with no oil. Sounds like a bad idea to me. I let all my bikes drain until they do not drain anymore. Refill oil and then run to check for leaks.
Sep 8, 2005 | 05:22 PM
#3
Pro Rider
Joined: Aug 2004
Posts: 385
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Changing the oil
Never, ever run the bike without the oil. In theory, getting more of the old oil out seems like a good thing. However, running without oil is more harmfull than leaving the small amount of old oil in the motor.
Sep 8, 2005 | 08:25 PM
#6
Trailblazer
Joined: Aug 2005
Posts: 37
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Changing the oil
LOFL
So when do you turn off the bike while draining it when it's running, when it starts Knocking from lack of lubrication?
What a moronic idea.
Who told/ taught you how to drain an engine, the mechanic who will be replacing parts on your seized engine?...LOFL
Yea, keep on draining your engine with it running.... it's in ALL the manuals...
Just in case someone ELSE doesn't know any better, your method is a SURE way to seize bearings, wreck an oil pump, and severly reduce the life of an engine. It is NOT important to remove every last drop of oil from an engine.
Carry on, nimrods
So when do you turn off the bike while draining it when it's running, when it starts Knocking from lack of lubrication?
What a moronic idea.
Who told/ taught you how to drain an engine, the mechanic who will be replacing parts on your seized engine?...LOFL
Yea, keep on draining your engine with it running.... it's in ALL the manuals...
Just in case someone ELSE doesn't know any better, your method is a SURE way to seize bearings, wreck an oil pump, and severly reduce the life of an engine. It is NOT important to remove every last drop of oil from an engine.
Carry on, nimrods
Sep 8, 2005 | 08:59 PM
#7
Pro Rider
Joined: Dec 2004
Posts: 325
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Changing the oil
What you can do is drain the oil till it stops then(w/ the kill switch off) hit the the starter acouple of times (only for a split seconed) and that will lossen the oil from traped areas, and you will notice a little more oil come out.
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Sep 8, 2005 | 10:06 PM
#8
Trailblazer
Joined: Aug 2005
Posts: 37
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Changing the oil
Why on god's green earth do you insist on possibly wrecking an engine?
Getting every last drop out of the crankcase is a good idea, but not necessary. You may dislike that 20 seconds after an oil change the oil isn't clear anymore, but that isn't a problem.
In a car you change oil for 2 reasons. One to help remove solids that are not trapped by the oil filter, usually dark carbon from blowby ( combustion byproduct) and the second is that oil has lubricity components that break down after time, so changing the oil before the oil looses this ability is imperative to the longivity of the engine.
In a motorcycle, it seems everyone goes overboard and changes their oil after a few rides, which is overkill imho, but due to a lack of odometer and riding conditions I feel it is safer to do them more frequently than not enough. Besides, some people run them in water conditions so this is good to see if they flooded the crancase with water, which will kill an engine.
Anyway, I hope some of you realize that getting every drop of black oil out of an engine isn't the end of the world, AND MAINLY it is not worth risking damage to do so.
BTW, when you drain the engine by pumping it out as suggested in both methods above, you run the risk of loosing prime, AND exposing bearings to a dry condition , IE removing oil from between metal and bearing surfaces, which is REAL bad. Do you know many race cars have a pressurized oil system to pre-lube the bearings, even though a new engine is assembled wet so no metal-to-metal happens? This system is to guarantee what some of you are suggesting from happening. But of course, these are $30k plus engines, not your everyday four wheeler engine.
Your engines, your choice. Just don't tell everyone that it is a good practice and OK to do, becaues it isn't needed, nor a smart thing to do.
Getting every last drop out of the crankcase is a good idea, but not necessary. You may dislike that 20 seconds after an oil change the oil isn't clear anymore, but that isn't a problem.
In a car you change oil for 2 reasons. One to help remove solids that are not trapped by the oil filter, usually dark carbon from blowby ( combustion byproduct) and the second is that oil has lubricity components that break down after time, so changing the oil before the oil looses this ability is imperative to the longivity of the engine.
In a motorcycle, it seems everyone goes overboard and changes their oil after a few rides, which is overkill imho, but due to a lack of odometer and riding conditions I feel it is safer to do them more frequently than not enough. Besides, some people run them in water conditions so this is good to see if they flooded the crancase with water, which will kill an engine.
Anyway, I hope some of you realize that getting every drop of black oil out of an engine isn't the end of the world, AND MAINLY it is not worth risking damage to do so.
BTW, when you drain the engine by pumping it out as suggested in both methods above, you run the risk of loosing prime, AND exposing bearings to a dry condition , IE removing oil from between metal and bearing surfaces, which is REAL bad. Do you know many race cars have a pressurized oil system to pre-lube the bearings, even though a new engine is assembled wet so no metal-to-metal happens? This system is to guarantee what some of you are suggesting from happening. But of course, these are $30k plus engines, not your everyday four wheeler engine.
Your engines, your choice. Just don't tell everyone that it is a good practice and OK to do, becaues it isn't needed, nor a smart thing to do.
Sep 8, 2005 | 10:30 PM
#10
Trailblazer
Joined: Apr 2005
Posts: 95
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Changing the oil
I change my oil and oil filter every month religously. I ride every weekend so I ride roughly 8 times a month. About every 3 months I will change the oil, and keep the old filter on it and ride for about 30 minutes, then do a coplete oil change and change that oil again and change the oil filter. It may be pointless but it calms my mind LOL.