Oil Injectors
02-25-08, 01:54 AM
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Oil Injectors
I have an 88 T2 with around 35,000 miles on a rebuilt engine. I am replacing my oil metering lines and was wondering if the oil injectors themselves should be replaced. Do these fail often? Are they a type of check valve? Is there any way to give them a good cleaning? Thanks!
02-25-08, 03:23 AM
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I have an 88 T2 with around 35,000 miles on a rebuilt engine. I am replacing my oil metering lines and was wondering if the oil injectors themselves should be replaced. Do these fail often? Are they a type of check valve? Is there any way to give them a good cleaning? Thanks!
as long as they are not blocked i cant see how they will need replacement. the inectors themselves have a small specificly sized hole for oil to pass through. an oil inlet into the injector, and an air inlet at the top. as for failing there is nothing really that can fail, exept for blockages as previously stated. nil check valve.
as for cleaning, i clean mine in prepsol and back flow them (blow back through the injector) with shop air or at worst your mount.
hope this helps
matt
as long as they are not blocked i cant see how they will need replacement. the inectors themselves have a small specificly sized hole for oil to pass through. an oil inlet into the injector, and an air inlet at the top. as for failing there is nothing really that can fail, exept for blockages as previously stated. nil check valve.
as for cleaning, i clean mine in prepsol and back flow them (blow back through the injector) with shop air or at worst your mount.
hope this helps
matt
02-25-08, 04:02 AM
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They have a rubber, poppet like checkvalve inside to keep air from flowing from the rotor back to the spider/throttle body. The FSM shows how to check out the check valve
To quote from the free, online Training manual: "The oil nozzle has a one way check valve which acts as all air bleed to prevent excessive suction or oil and to atomize the oil".
"When vacuum is created in the combustion chamber and intake manifold during the suction period, the check valve is pulled open, and allows air to mix with oil.
During the compression period, pressure is applied and the valve closes to prevent backflow of the oil into the connecting hose."
To quote from the free, online Training manual: "The oil nozzle has a one way check valve which acts as all air bleed to prevent excessive suction or oil and to atomize the oil".
"When vacuum is created in the combustion chamber and intake manifold during the suction period, the check valve is pulled open, and allows air to mix with oil.
During the compression period, pressure is applied and the valve closes to prevent backflow of the oil into the connecting hose."
Last edited by HAILERS; 02-25-08 at 04:12 AM.
02-25-08, 09:19 AM
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