1998 GT40 Transmission oil change

[jimlahey]

Hello!

Im in the process of selling my boat. Time for an upgrade! I have a question regarding transmission oil/fluid. It has not been changed in a long time (3 years). The boat runs great still, however I would like to change the transmission oil. Im having some difficulties finding threads regarding the procedure, and type of oil?fluid. Could you please point me in the right direction. I do all the maintenance on my own, and have an oil removal pump, so I would like to do it on my own if I could. Your advice is always greatly appreciated!

[H2O]

Poke a 1/4" copper tube into the dipstick hole (do not use a plastic tube) and attach it to the pump and start pumping. Capacity is 2 qt. but usually will only be able to remove 1-1.5 qts. Refill the same amount as you removed and check the dipstick after running. Use non-synthetic Dex/Merc automatic transmission fluid.

[Jono]

F u Lahey. Randy could change that after a quart of rye at the cheeseburger picnic.
Get the motor hot and suck it out the dipstick. You'll need 1/4" tMeasure what you take out and put the same amount back in. But take the rest of the quart to the lake and check the level in the water. Because you took it out hot but put it back in cold, you'll be a little short.
Just read the tranny oil label and get one compatible with dextron3.
You could do this twice since its been so long since the last change.

[s_kelley2000]

F u Lahey. Randy could change that after a quart of rye at the cheeseburger picnic.

Haha gotta love Trailer Park Boys!

Good advice above, especially with the 1/4" copper tubing. There have been quite a few instances of people getting the plastic tubing stuck and it breaking off forcing them to dismantle the unit to get it out of there.

[jimlahey]

Thanks everyone for the help and comments. Werent sure if anyone would notice the handle, as I live in the canadaian wilderness!

I have an oil extractor, but I should get some 1/4 copper tubing to create an air tight seal when combined with the oil extractor hose assembly? Hope im reading that right, because the oil extractor comes with various sized plugs, so not sure why I wouldnt use those? Thanks guys. If I get this done tonight ill get this drunk...

http://www.youtube.com/watch?v=3wTCoa0QQ6Y&safe=active

[charlesml3]

I've changed mine for 13 years just using the same plastic sucker-outer that I use for oil changes and never had a problem.

-Charles

[jimlahey]

Ill re-post this from DanielC for others who may need the help...

You need a tube small enough to go into the hole in the transmission that the dipstick is in. Not the big hole at the top of the dipstick, the smaller hole down inside the transmission. The tube has to go to the bottom of the transmission sump.
I just use a plastic tube. But it you push it down too hard, it hits the bottom of the sump at an angle, and bends back up, and the end of the tube is no longer in the bottom of the sump.
Some people have also broken off the plastic tube inside the transmission, and I think have had to remove and disassemble the transmission to get it out.
If the oil extractor tube will go inside the transmission, and through the dipstick hole, the copper tube is not necessary. Change the transmission oil when hot. It goes much faster that way.

[intrlaz]

I use the copper tubing method and it works great. You might need a small piece of plastic tubing to use as a sort of coupler between the copper and the tubing that comes with your pump. Like others said, just get it nice and hot and pump away.