20w20 - Transmission Oil

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   Started changing the fluid on my transmission (PCM 1.23).  I either found really dirty transmission fluid or its 20w20 oil.  Boat is an 89, not sure of history on transmission.  I'll see if I can get some pictures. 

Went to suck out the oil with my Jabsco hand pump.  I was able to get about half a quart.  Not sure how to get the rest.  Can I just add fluid, dilute, remove, and repeat?  (Have vavoline - Dex/Merc to replace.)

I was able to get the tube down about 6 inches, than it would proceed down a second smaller hole into the transmission?  I didn't want to get the hose stuck down there so I thought I'd see if I was doing anything wrong.

Going to take it out tomorrow and check the alignment on the water and hopefully replace the fluid.

Thanks.

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flipflop Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: June-15-2010 Location: usa Status: Offline Points: 187	Post Options Post Reply Quote flipflop Report Post Thanks(0) Quote Reply Topic: 20w20 - Transmission Oil Posted: December-09-2010 at 10:51pm
	Started changing the fluid on my transmission (PCM 1.23). I either found really dirty transmission fluid or its 20w20 oil. Boat is an 89, not sure of history on transmission. I'll see if I can get some pictures. Went to suck out the oil with my Jabsco hand pump. I was able to get about half a quart. Not sure how to get the rest. Can I just add fluid, dilute, remove, and repeat? (Have vavoline - Dex/Merc to replace.) I was able to get the tube down about 6 inches, than it would proceed down a second smaller hole into the transmission? I didn't want to get the hose stuck down there so I thought I'd see if I was doing anything wrong. Going to take it out tomorrow and check the alignment on the water and hopefully replace the fluid. Thanks.

eric lavine Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413	Post Options Post Reply Quote eric lavine Report Post Thanks(0) Quote Reply Posted: December-10-2010 at 9:55am
	probably a minimum of 3 times to completely flush, at op temp, shift in and out of gear frequently to get the oil out of the clutch pack
	"the things you own will start to own you"

TRBenj Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21186	Post Options Post Reply Quote TRBenj Report Post Thanks(0) Quote Reply Posted: December-10-2010 at 11:36am
	As long as the hose is going down the smaller hole centered in the dipstick hole, youre fine. Dont let it go into a cavity off to the side, the results may not be pretty... dont ask me how I know that! It was common for the early 1.23 boxes to have the straight 20w. I pulled mine at 1100 hrs and inspected it- and it looked terrific. I went back with Dex/Merc though.

flipflop Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: June-15-2010 Location: usa Status: Offline Points: 187	Post Options Post Reply Quote flipflop Report Post Thanks(0) Quote Reply Posted: December-10-2010 at 11:55am
	[QUOTE=TRBenj] As long as the hose is going down the smaller hole centered in the dipstick hole, youre fine. Dont let it go into a cavity off to the side, the results may not be pretty... dont ask me how I know that! QUOTE] Thanks. I saw your thread and it got me worried. Have a half day today, going to bring the boat out and finish it up. Update: Changed the fluid out and looks good. Thanks for the help.

20w20 - Transmission Oil

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