Gravity08's oil pump mod - UPDATE - COMPLETED w/Pics

I swung by Lowes today after lunch and picked up the few pieces I should need to add the oil bump to the Supra. Now I just have to wait on the pump to get here. This is the pump I ordered from www.NorthernTool.com . It has the same specs as the one he posted pics of, but it cost less. It's rated for 1GPM of pumping, that's a fast oil drain!!!

Pump:
http://www.northerntool.com/shop/too...4109_200394109
http://img.photobucket.com/albums/v2...y2221/pump.jpg

Parts:
http://img.photobucket.com/albums/v2...2221/parts.jpg

My Lowes trip consisted of:
2 pack of hose Clamps to fit a 3/8 hose
2 - 3/8 ID Barb with 3/8 male threaded end
1 3/8 Gas Ball valve (both ends are female 3/8 ID to accept the barb above)
4 foot of Clear Braided PVC Tubing. (they had a book of info on tubing and it showed to be oil resistant)

Total cost at Lowes: $16.71
Pump Cost shipped: $48.85

Total Cost: $65.56

I'm hoping the 4 ft of hose is enough to allow the drain hose to reach an oil pan on the ski platform. If not, I've got some fuel line at home I can splice in. I can't wait to get this done. From what I understood, Gravity went with a 1/2 ball valve and used a fitting to taper down to the 3/8. I eliminated that need by finally finding a 3/8 ball valve.

I'll update as I get it done. Pump should be here quickly, they ship out of Texas.

I am VERY excited about this as well --

Gravity, do you run the line over the transom, or do you take it out the drain?

You could do it either way. I run mine over the transome. I added another barb fitting to the end of my hose for the stock cap. Im not sure if the fitting will go out the drain hole.

I plan on just rinning mine over the transom. My dad has a Baja Hammer, and I talked to him after picking up the parts. WE are going to set both boats up to where the pump can be shared. It will not be mounted in the boat. Rather than connect the ball valve to the pump, I am going to connect it to the main drain line and then leave a short section of hose on the other side so the pump can be quickly attached when needed for either of us. This will also eliminate having to coil up the piece of hose that will be used to drain over the transom. It will stay with the pump. (portable)

DUsty,

I was thinking of making mine also not be "in the boat" - but I will see, when I actually
can get to this project.

It was 73 here today - so I went for motorcycle ride (lakes still iced over) -- and they are predicting 10" of the white stuff for Friday ... Colorado Spring.

I assume your boats dont have a hull plug right under the engine like mine does (maybe it is just a direct drive thing)? I have a valve on the drain plug that I just put a short piece of hose on and drain it out the bottom of the boat.

Nope, the V-drive's don't have it. My 84 Malibu does, but its a DD. This pump will allow us to pump the oil out without having a mess.

Justin, bingo :)

The pump finally got here! Seems really nice quality.

http://img.photobucket.com/albums/v2...221/pump-1.jpg

thats cool.... do you also put an aux hose on the intake so you can suck out the vdrive and the tranny fluid as well?:D

Planning on doing exactly that

Dusty

I think I'm going to join in and do this mod as well. May hit you up and make a trip up there to you. I'm recently getting into doing these kinds of mods and I'm not too schooled on technical things. May want a pro to guide my way. I got the beer or alcohol!!!

I'll let you know once I get it done. I'll also snap some pics of how I'm setting it up. I'm setting it up to not be attached to the boat and also will have an additional hose to use it on the V-Drive and Tranny.

Alright, I finished it up and changed the oil today after spending all day getting her all clean! Here's how I have it set up:
Factory Drain Hose, nothing done yet, just wanted to show
http://img.photobucket.com/albums/v2...2221/pump1.jpg

Here, I cut the factory drain hose and but a 3/8 hose barb with a 3/8 thread on each end of my cut, and clamped them with hose clamps.
http://img.photobucket.com/albums/v2...2221/pump2.jpg

This shows the ball valve connected between the two pieces I just made. I did it like this because I am making it "portable" and not attached to the boat. When it's oil change time, I remove the hose clamp and the short end with the factory end and replace it with a short piece of tubing that goes to the pump.
http://img.photobucket.com/albums/v2...2221/pump3.jpg

This pic shows the pump hooked up. Like I talked about above, the short factory piece has been removed from the bard threaded into the ball valve, and the short clear hose took its place. This now is hooked to the pump, with the output running over the transom to the ground. I used some speaker wire and cut it long enough to run to my battery. I spliced on some permanent alligator clips so I can just clip it on. Also, about 8 inches above the pump, you will see toggle switch. I put that on the hot wire so I could sit back there in the locker while it is pumping and turn it off quickly if need be. It worked perfect.
http://img.photobucket.com/albums/v2...2221/pump4.jpg

---Continued---


The sun ruined this pic, but this is with it pumping oil. I warmed the boat up (with the intake hose in a bucket and a water hose keeping the bucket full) to 135, but should have warmed o 150+. The oil came out without any issues. It was still thick, so a hotter temp would have been better. It pumped out right under 5 quarts, and the filter poured out about 1/2 when I pulled it off. Thats pretty dang good.
http://img.photobucket.com/albums/v2...2221/pump5.jpg

Just for kicks, afterward I wanted to make sure all the oil came out. I stuck a spare length of hose on the ball valve and ran it out the transom. I let it sit for about 30 minutes, and not another drop came out of the drain.

You can see in the pic above that my collector can is now on the swim platform. I had Ash set it there so I could watch it fill. At first, it was on the ground in case something went wrong. Next time, my output hose will be long enough to pump it into a container in the back locker. The long hose was not necessary, now I know. At the end, when the oil was nearly all out, I moved the pump down under the engine so it could get a little lower. Other than that, it stayed propped up right where the pic shows it.

The way mine is set up, once complete I just had to close the ball valve, unhook the pump, clamp the factory piece on the other end of the valve and done. The pump does not stay in the boat. All I need to do to use it for draining the V Drive is get a reducer to fit a hose that will allow to get to the bottom of the V Drive. The 3/8 hose looks like it will fit in the transmission fill, so all 3 fluids can be removed with this pump.

When I was done, I just dropped the inlet side of the hose into a bucket of water and let it pump it out to clean the tube out.

Hopefully this helps, the idea was all Gravity08's. And I think it was a damn good one!

Thanks Dusty. Ease and being clean was the idea.

Lookin good!!! Nice thread!