Remote controlled needle valve
08-12-2008, 04:19 PM
#26
Junior Member
Thread Starter
Join Date: Jun 2008
Location: , PORTUGAL
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
ORIGINAL: Villa
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Is there any other type of electric pumps in R/C?
08-12-2008, 04:53 PM
#27
Senior Member
Join Date: Jun 2006
Location: granby, QC, CANADA
Posts: 1,407
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
ORIGINAL: skhell
That's what I was afraid of...
Is there any other type of electric pumps in R/C?
ORIGINAL: Villa
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Is there any other type of electric pumps in R/C?
Yes, They are used in turbines and they seem to last a fairly long time
08-12-2008, 06:09 PM
#28
Join Date: Mar 2004
Location: UlladullaNSW, AUSTRALIA
Posts: 1,868
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
Skhell, you are trying to over complcate things. All you need is a small regulator valve (similar to our needle valves) between the oil supply and the intake manifold between the throtal body(carby) and engine. The vacuum of the engine will pull the oil through. You need the top of oil supply tank to level with the intake point on the manifold or as close as possiable. You require a very small amount of oil to go through the system as all it is for is to lub the valve seats. That is what the lead in the pre unleaded fuel days done. Or you can get a car with an alloy head and then you don't need that oil anyway as it will have stelite seats and hardened valves. Your Toyota motor cars must have different type of engine as out here all Toyota's will take LPG, it is just some thing that the car manifactures don't want as common knowlage. The other thing is mods such as LPG conversion in the new car warranty period will void the warranty.
Cheers
Cheers
08-13-2008, 06:12 AM
#29
Junior Member
Thread Starter
Join Date: Jun 2008
Location: , PORTUGAL
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
ORIGINAL: The Ghost
Skhell, you are trying to over complcate things. All you need is a small regulator valve (similar to our needle valves) between the oil supply and the intake manifold between the throtal body(carby) and engine. The vacuum of the engine will pull the oil through. You need the top of oil supply tank to level with the intake point on the manifold or as close as possiable. You require a very small amount of oil to go through the system as all it is for is to lub the valve seats. That is what the lead in the pre unleaded fuel days done. Or you can get a car with an alloy head and then you don't need that oil anyway as it will have stelite seats and hardened valves. Your Toyota motor cars must have different type of engine as out here all Toyota's will take LPG, it is just some thing that the car manifactures don't want as common knowlage. The other thing is mods such as LPG conversion in the new car warranty period will void the warranty.
Cheers
Skhell, you are trying to over complcate things. All you need is a small regulator valve (similar to our needle valves) between the oil supply and the intake manifold between the throtal body(carby) and engine. The vacuum of the engine will pull the oil through. You need the top of oil supply tank to level with the intake point on the manifold or as close as possiable. You require a very small amount of oil to go through the system as all it is for is to lub the valve seats. That is what the lead in the pre unleaded fuel days done. Or you can get a car with an alloy head and then you don't need that oil anyway as it will have stelite seats and hardened valves. Your Toyota motor cars must have different type of engine as out here all Toyota's will take LPG, it is just some thing that the car manifactures don't want as common knowlage. The other thing is mods such as LPG conversion in the new car warranty period will void the warranty.
Cheers
That's basically the system that I have on my car (an Honda Accord). The problem is that some how the system stops dropping oil into the engine and we cant understand why. We think thats because of the irregular turbulence that some times is created in the air intake manifold, making the vacuum on the tube that connects the system to the intake manifold to simply disappear... Thats why I want something that is more controlled.
08-13-2008, 06:30 AM
#30
Join Date: Mar 2004
Location: UlladullaNSW, AUSTRALIA
Posts: 1,868
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
With a Honda You should not need the oil anyway as it has an alloy head and would have tha stelite seats and hard valves anyway. Don't need the oil for Honda in this country. Check the vacuum fittings on the throtal body or carby as one will have vacuum on it at all throtal settings.
Cheers
Cheers
08-13-2008, 06:40 AM
#31
Junior Member
Thread Starter
Join Date: Jun 2008
Location: , PORTUGAL
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
Humm, thats weird...
Here in Portugal, any installation of LPG in a Honda will get a valve saver kit. My Honda Accord is a 1.8 from 2000 and the engine is a F18B2.
Any way, I will look at the vacuum fittings and try to find one that has vacuum on it at all throttle settings.
Here in Portugal, any installation of LPG in a Honda will get a valve saver kit. My Honda Accord is a 1.8 from 2000 and the engine is a F18B2.
Any way, I will look at the vacuum fittings and try to find one that has vacuum on it at all throttle settings.
08-13-2008, 07:28 AM
#33
Junior Member
Thread Starter
Join Date: Jun 2008
Location: , PORTUGAL
Posts: 25
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
ORIGINAL: Flying freak
Yes, They are used in turbines and they seem to last a fairly long time
ORIGINAL: skhell
That's what I was afraid of...
Is there any other type of electric pumps in R/C?
ORIGINAL: Villa
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Hello skhell
The R/C electric fuel pumps used to refill the R/C fuel tanks seem to have a short life.
Is there any other type of electric pumps in R/C?
Yes, They are used in turbines and they seem to last a fairly long time
Can anyone tell me where I can find this pumps online?
08-13-2008, 09:33 AM
#34
Senior Member
My Feedback: (1)
Join Date: Sep 2004
Location: FrederickMD
Posts: 2,114
Likes: 0
Received 0 Likes
on
0 Posts
RE: Remote controlled needle valve
Not to demean the discussion in this thread, but can somebody tell me how it relates to RC Airplane Beginners? Perhaps the moderator could move this to a more appropriate area?
Brad
Brad
06-05-2018, 09:36 AM
#36
in most larger oil injected 2 cycle engines the oil metering is proportionally connected to the throttle . as the throttle opens the oil delivery increases and vise-verse. if you are using this oil as a lube for valve train protection, you might be able to set up some linkage to work the same way off the throttle servo. as a throttle servo is very under labored...... there should be plenty of reserve servo power available to easily run another system. proportioning can be achieved through slave levers and/or belcrank(s) to increase, decrease, or reverse pushrod travel to the oil metering valve in proportion to the throttle rod travel.
as far a pump goes. the oil tank could be pressurized by a tap in the crankcase of the engine, using secondary compression or off the silencer, as fuel tanks are pressurized, to pressurize the oil tank, rather than using an electric pump.
as far a pump goes. the oil tank could be pressurized by a tap in the crankcase of the engine, using secondary compression or off the silencer, as fuel tanks are pressurized, to pressurize the oil tank, rather than using an electric pump.
Last edited by r ward; 06-05-2018 at 09:43 AM. Reason: additions
