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Car Forum / Toyota / Toyota Cars / September 2007Oil Pump priming
In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, On, and Start. I was just wondering if the oil pump begins circulating oil through the engine when the key is in the On position, which comes before the Start position. If so, one might want to hold the key in the On position for a few seconds before going onto the Start position--but only if On allows for oil to circulate through the engine before the engine actually starts. Thanks. that is probably the electric fuel pump > In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, > On, and Start. [quoted text clipped - 8 lines] > through the > engine before the engine actually starts. Thanks. You have a mechanical pump that turns due to rotation of the motor itself. There is no benefit to turning the ignition to ON, then waiting for the oil pump to spin up. The pump does not spin in this condition. > In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, > On, and Start. [quoted text clipped - 8 lines] > through the > engine before the engine actually starts. Thanks. > I was just wondering if the oil pump begins circulating oil through > the engine > when the key is in the On position == As others have mentioned, you won't have any oil pressure until the engine is running. Pressure builds first in the main bearings, then pumped upward through the engine. There are some devices you could install that hold pressure when the engine is off. The idea is that much of the wear in an engine occurs during the first seconds when oil pressure is building. On my lawn mower, I always pull the cord three times, then prime and start to allow the oil to circulate. In the Camry, I use Mobil 1 synthetic with Lucas synthetic oil stabilizer (20%) and it clings to engine parts to avoid dry starts, however, many people have gotten several hundreds of thousands of miles from their Toyotas simply using conventional motor oil changed at 3,000 mile intervals. The newer multi weight oils are lighter viscosity when cold to flow through the engine more quickly. > In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, > On, and Start. [quoted text clipped - 8 lines] > through the > engine before the engine actually starts. Thanks. As some mentioned, the pump is mechanical, and does not pump until the engine is running. But there is one trick I do on my yota when I change the oil.. This is one thing the immobilizer is actually useful for... Last time when I changed my oil and filter, I cranked the engine a few times with a non-transponder key, and primed the system. It seemed to work.. When I started up, the oil light was instantly off, and I heard no "dry start" valve noise at all.. :/ About the same principal as using a drill motor to prime the oil system on a new rebuild.. MK Some cars are beginning to be equipped with electric supplemental oil pumps. These can prime the engines before starting. But most cars today, like the Camry, still use the older mechanical driven pumps tied to RPMs that do not generate more than 4-8 PSI during idle. > In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, > On, and Start. [quoted text clipped - 8 lines] > through the > engine before the engine actually starts. Thanks. > In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, > On, and Start. [quoted text clipped - 8 lines] > through the > engine before the engine actually starts. Thanks. This thread reminds me of when we lived in North Dakato (C-O-L-D). Everyone up there uses engine heaters to keep everything nice and warm and flowing well. I learned that when I first got there and tried to start my Camry in the morning. Rrrrrr rrrrr bang bang bang. jor >> In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, >> On, and Start. [quoted text clipped - 13 lines] > tried to start my Camry in the morning. Rrrrrr rrrrr bang bang bang. > jor Well, it is just as cold here in Alberta as it is in North Dakota and I have only plugged my 99 Camry 6 cyl. in once or twice in 8 years. Why? I use syn oil which puts hardly no drag on the starter even when the car has sat all night at -40. >>> In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, >>> On, and Start. [quoted text clipped - 17 lines] >cyl. in once or twice in 8 years. Why? I use syn oil which puts hardly no drag on the starter even when >the car has sat all night at -40. You live in Alberta, no wonder you sometimes have an atitude!! I'll have to cut you more slack in the future. ;-) I'll bet you keep your car in top shape also, good battery, tuned up, good plug wires (if it uses them), all your routine maintenance up to date, etc. My company trucks always sat outside, my garage was for my cars, and the company wouldn't spring for syn oil. They never failed to start even at -25 (it doesn't get as cold here in NW Ohio as in Alberta). The only problem I ever had was once at about 0 degrees when I was too busy to get a bad battery replaced. Jack --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 000776-1, 09/24/2007 Tested on: 9/25/2007 10:38:59 PM avast! - copyright (c) 1988-2007 ALWIL Software. http://www.avast.com >>>> In the '06 Camry LE, there are 4 ignition key positions: Lock, ACC, >>>> On, and Start. [quoted text clipped - 20 lines] > You live in Alberta, no wonder you sometimes have an atitude!! I'll > have to cut you more slack in the future. ;-) Well, I was born here and have lived here...in Alberta for over 61 years. Are we Albertans known as the Texans of Canada? Don't forget that Ohio gets some its petroleum from here!!!!! Now, where's that valve??? > I'll bet you keep your car in top shape also, good battery, tuned up, > good plug wires (if it uses them), all your routine maintenance up to > date, etc. But of course, doesn't EVERYone in this ng? > My company trucks always sat outside, my garage was for my cars, and > the company wouldn't spring for syn oil. They never failed to start [quoted text clipped - 10 lines] > avast! - copyright (c) 1988-2007 ALWIL Software. > http://www.avast.com |
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