Thanks goes to Dr. A for this idea; and I see that NelsonSprinter does the same but without the adapter - MityVac only: https://sprinter-source.com/forum/showpost.php?p=267947&postcount=4
In 2003 I posted the turkey baster idea for priming the OM612 fuel filter canister and related lines. Others have suggested pressuring the tank to force fuel up the line and into the canister. Dr. A recommends vacuum instead.
ADAPTER:
The hardest item to get is the Voss connector. I got mine as I was replacing the fuel line from the fuel filter to the low pressure pump due to a broken leg.
The nylon line really is tight on the connector. I used a heat gun to remove the nylon line.
Strip off the legs and white ears. These are taken off to make it easier to do a quick change out
Once the connector is free, I replaced the O-ring with a new one. Attach a small diameter fuel line - only about 6 inches is needed. If you can find clear line, so much the better (I didn't - so used some black hose I had lying around).
USE:
The adapter mounts on the load side of the low pressure fuel pump. That is the top Voss connector on the pump. To get to it, disengage the vacuum line that goes in front of the pump for working room. Disconnect the Voss connector and prep it with silicone grease (check O-ring as it may need to be replaced). Put silicone grease on the adapter, and mount it in the Voss fitting.
Now attach a MityVac. I like using a bit of clear line at the MityVac such that I can see when the bubbles stop. This technique almost guarantees that there will be no air from the feed line from the tank through the fuel filter canister and through the low pressure pump. Once the bubbles stop, the goal is to unmount the adapter and reconnect the fuel line as quickly as possible, as gravity acts fast with diesel.
This adapter and priming technique significantly reduces the amount of time needed for the starter to operate. This is really important if the battery is running near the 11.5 volt no-start barrier. All the fuel that is vacuumed in goes through the proper path and is properly filtered. There are no spillage issues - really clean and neat.
Put the adapter in the same box as your spare fuel filter, along with some silicone grease, in the van, and carry it with you all the time.
In 2003 I posted the turkey baster idea for priming the OM612 fuel filter canister and related lines. Others have suggested pressuring the tank to force fuel up the line and into the canister. Dr. A recommends vacuum instead.
ADAPTER:
The hardest item to get is the Voss connector. I got mine as I was replacing the fuel line from the fuel filter to the low pressure pump due to a broken leg.
The nylon line really is tight on the connector. I used a heat gun to remove the nylon line.
Strip off the legs and white ears. These are taken off to make it easier to do a quick change out
Once the connector is free, I replaced the O-ring with a new one. Attach a small diameter fuel line - only about 6 inches is needed. If you can find clear line, so much the better (I didn't - so used some black hose I had lying around).
USE:
The adapter mounts on the load side of the low pressure fuel pump. That is the top Voss connector on the pump. To get to it, disengage the vacuum line that goes in front of the pump for working room. Disconnect the Voss connector and prep it with silicone grease (check O-ring as it may need to be replaced). Put silicone grease on the adapter, and mount it in the Voss fitting.
Now attach a MityVac. I like using a bit of clear line at the MityVac such that I can see when the bubbles stop. This technique almost guarantees that there will be no air from the feed line from the tank through the fuel filter canister and through the low pressure pump. Once the bubbles stop, the goal is to unmount the adapter and reconnect the fuel line as quickly as possible, as gravity acts fast with diesel.
This adapter and priming technique significantly reduces the amount of time needed for the starter to operate. This is really important if the battery is running near the 11.5 volt no-start barrier. All the fuel that is vacuumed in goes through the proper path and is properly filtered. There are no spillage issues - really clean and neat.
Put the adapter in the same box as your spare fuel filter, along with some silicone grease, in the van, and carry it with you all the time.
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