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Air Breather Pipe

Posted: Thu Aug 25, 2016 9:06 am
by Warehouse1001
He guys,
Just want to confirm there are no check valves in the GT750 air breather pipe. True? Thanks!

Re: Air Breather Pipe

Posted: Thu Aug 25, 2016 10:42 am
by Alan H
Which breather pipe is that?
But any breather shouldn't have a valve in it.

Re: Air Breather Pipe

Posted: Thu Aug 25, 2016 1:59 pm
by Warehouse1001
It's the only one on a GT75O to my knowledge. It's next to the water pump and keeps oil and water leaks from mixing.

Re: Air Breather Pipe

Posted: Sat Aug 27, 2016 6:34 pm
by Warehouse1001
One more try....anyone able to confirm???

Re: Air Breather Pipe

Posted: Sun Aug 28, 2016 7:58 am
by rngdng
Are you talking about the little hole by the water-pump housing?



Lane

Re: Air Breather Pipe

Posted: Sun Aug 28, 2016 12:06 pm
by Warehouse1001
Yes...

Re: Air Breather Pipe

Posted: Mon Aug 29, 2016 4:42 am
by rngdng
I believe that hole is actually a weep hole indicator to let you know when the upper water pump seal has failed. If oil comes our the upper seal is bad. If coolant comes out, the pump is leaky. The transmission vent is a tower right by the oil pump. When crank seals go bad, oil will come out the tower, and leak out from under the oil pump cover.


Lane

Re: Air Breather Pipe

Posted: Mon Aug 29, 2016 8:26 am
by Warehouse1001
Thanks Lane, but I'm not asking about the crankcase vent. And, yes the weep hole functions largely as you have indicated. But, I'm still trying to confirm the air breather pipe does not have check valves in it. My guess is that it doesn't but I don't like to guess on engines I'm not familiar with. If this were a Kawasaki triple I'd know the answer. Unfortunately, this is my first Suzuki triple build. Thanks, Chuck

Re: Air Breather Pipe

Posted: Mon Aug 29, 2016 10:17 am
by tz375
There are no check valves in that pipe. I just checked a couple and they are a simple banjo fitting. I did have one that showed signs of teh nylon tube deformed, so check it for free flow.

Re: Air Breather Pipe

Posted: Mon Aug 29, 2016 1:24 pm
by Warehouse1001
Perfect. Many thanks! Chuck