oil metering pump question
03-29-07, 01:08 PM
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oil metering pump question
hey guys i have a 89 na gxl and i was wondering if it was possiable to make the omp draw oil from some where other then the engine i have seen a mod for the mechiancal pump on the 86-88 where you can get the oil from a sepreat tank and if i can run a set up like this what would be best pure premix premix and gas or regular oil i think this would be a great mod
thanks guys
thanks guys
03-29-07, 04:24 PM
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You'd want to use the two stroke TW-3 (I think that's the number).
I've done the Patman job. It works. Was some fun to do. I know of only one thing that I really, really don't like about it. The container to hold the fluid. There is no room for a container with enough volume to satisfy me. I use a used butane torch bottle (about 30oz), with a outlet on the bottom, and bolted/clamped to the fender where the old charcoal filter was. Then you have to run a line from there to the OMP.
There is an alternate that was mentioned on this forum this last month and I tried that out.
Basically it's just a used acetone tin can on one gallon volume. ON the bottom side of it I installed a windshield washer pump. A hose at the pump goes to a tee installed in the vent line for the gas tank/filler.
There is a half inch hose that runs from the tank to the gas filler cap area. I cut that hose in two and inStalled a tee. One leg of the tee goes to the tin cans washer pump.
I timed the thing the other day. Apply voltage to the washer pump and it takes 30 seconds to fill one of those 16oz two stroke bottles. A simple switch with 12vdc going to it and a gnd wire is all that is needed.
A gallon reservoir like that should get one through seven or eight fillups of the gas tank. The somewhat rectangular can fits in the center of the spare tire. I put some foam material under the can to absorb shocks/bumps/vibrations.
I made the tee out of some plumbing copper tubing and a butane torch to make a tee out of it. Used plumbing solder to weld the tee. A ten/fifteen minute job making a tee.
This VENT line is located under the carpet in right rear of the car. It's under a access panel held on with four sheetmetal screws. Lift it off and you can see the large line that fills the fuel tank and see the approx 3/8" vent line just aft of it. Cut the 3/8th's line in two and install a tee. Not a difficut thing to do.
Mating a windshield washer pump to the can is more time consuming. The washer pump was about or under fifteen bucks. I drilled a hole in the bottom side of the can that made the install of the pump ALMOST a press fit. Used five minute epoxy on the nipple that mated with the can and pressed it in the can hole, then applied some more epoxy around the edges for extra holding power. Let it sit for hours, in fact til the next day.
I'm looking for something more substantial than a tin can but of the same size. Thicker walls. But the can isn't leaking in any way right now. The thin wall flexing over time bothers me. Maybe I should try riveting a reinforcement or double if you will, over the mating area b/t the pump and tin can.
I've done the Patman job. It works. Was some fun to do. I know of only one thing that I really, really don't like about it. The container to hold the fluid. There is no room for a container with enough volume to satisfy me. I use a used butane torch bottle (about 30oz), with a outlet on the bottom, and bolted/clamped to the fender where the old charcoal filter was. Then you have to run a line from there to the OMP.
There is an alternate that was mentioned on this forum this last month and I tried that out.
Basically it's just a used acetone tin can on one gallon volume. ON the bottom side of it I installed a windshield washer pump. A hose at the pump goes to a tee installed in the vent line for the gas tank/filler.
There is a half inch hose that runs from the tank to the gas filler cap area. I cut that hose in two and inStalled a tee. One leg of the tee goes to the tin cans washer pump.
I timed the thing the other day. Apply voltage to the washer pump and it takes 30 seconds to fill one of those 16oz two stroke bottles. A simple switch with 12vdc going to it and a gnd wire is all that is needed.
A gallon reservoir like that should get one through seven or eight fillups of the gas tank. The somewhat rectangular can fits in the center of the spare tire. I put some foam material under the can to absorb shocks/bumps/vibrations.
I made the tee out of some plumbing copper tubing and a butane torch to make a tee out of it. Used plumbing solder to weld the tee. A ten/fifteen minute job making a tee.
This VENT line is located under the carpet in right rear of the car. It's under a access panel held on with four sheetmetal screws. Lift it off and you can see the large line that fills the fuel tank and see the approx 3/8" vent line just aft of it. Cut the 3/8th's line in two and install a tee. Not a difficut thing to do.
Mating a windshield washer pump to the can is more time consuming. The washer pump was about or under fifteen bucks. I drilled a hole in the bottom side of the can that made the install of the pump ALMOST a press fit. Used five minute epoxy on the nipple that mated with the can and pressed it in the can hole, then applied some more epoxy around the edges for extra holding power. Let it sit for hours, in fact til the next day.
I'm looking for something more substantial than a tin can but of the same size. Thicker walls. But the can isn't leaking in any way right now. The thin wall flexing over time bothers me. Maybe I should try riveting a reinforcement or double if you will, over the mating area b/t the pump and tin can.
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