One last issue T20

doug rooney · Post by **doug rooney** » Sat Jun 13, 2009 10:38 am

One more thing to resolve before she's ready to ride. Ignition switch was bad so that came yesterday and took care of my elecrtical problem.
I messed up my oil pump and have been trying to get it to quit sucking air to no avail. Did not realize that the bleeder screw was left hand threads and stripped it out partly trying to get it off. It will not tighten up now and have tried various types of sealer hoping that would seal it. Still sucks! (Am assuming that's where the air is getting in). I have a different one on the way. I have bled and bled the old one, took it apart and replaced the O rings and reassembled while submerged in oil. Start it up and seems fine for a couple minutes, then a line of air starts up one or both of the cylinder lines. Driving me crazy!

Would be most appreciative if someone can tell me step by step the proper method of installing the new one when it comes in case I'm missing something in the book. (Clymer and Zook service manuals)
Thanks, Doug

Odin · Post by **Odin** » Sat Jun 13, 2009 12:46 pm

Doug I don't think you installed it wrong, to me it sounds like you just needed to replace it, plain and simple.
when you install the new one no matter what you do there will be air in the lines, it usally disappears after some riding.

I'm always grateful to see the air bubbles move along the lines myself, lets me know that the damn thing is working

doug rooney · Post by **doug rooney** » Sat Jun 13, 2009 2:14 pm

Thanks Odin. Never had a 2 stroke before this one so am never sure what's quite normal. Just concerns me to see 2" of air at the pump and it don't seem to move up the line. I actually have 2 pumps coming, both from Ebay. The first one was really cheap $18 shipped but AFTER I bought the thing was looking at the ad closely and looks to me like there's a hex head bolt where the slotted air screw should be! I'm guessing maybe that one is messed up in the same way I did mine so bought another one that looks right. Live and learn. In my case....sometimes SLOOOOOWLY!

Odin · Post by **Odin** » Sun Jun 14, 2009 11:48 am

Strange, none of my T20 oil pumps have slotted air screws... they are all hex bolts.
me thinks yours was knackered from the start and sounds like one of the two you just bought is knackered as well...

between the three pumps you will have you can built a good working one and have parts to spare.

doug rooney · Post by **doug rooney** » Sun Jun 14, 2009 1:27 pm

Really?? Thanks for that! I was assuming the one with the hex bolt would be wrong and wasn't going to use it. To be clear, we're talking about the screw/bolt just below the 3 oil line bolts....correct???