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Old 12-16-2019, 08:03 PM   #1
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Default Titan advantage 400 leaking transducer

I haven't found much info yet but my old Titan Advantage 400 has a manual pressure knob with a push button style transducer and it seems to be leaking quite a lot through the small channel machined into the sprayer behind the plastic cover on the front left of the sprayer. Fortunately I'm only running water through it as a test, but aside from the O-ring on the bottom of it that I replaced, I'm not sure where the leak is still coming from or could it be the transducer itself somehow is leaking?

Edit: And by o-ring, I mean the black o-ring that fits on the bottom of the transducer itself where it screws to the sprayer surface. There are also what look to be 2 very tiny washers, 1 on each end of the transducer. I assume they are designed to ensure any fluids only make contact with the transducer 'button'. Perhaps those tiny washers are allowing fluid THROUGH the transducer and out the front of the sprayer.

Last edited by Masterpiece; 12-16-2019 at 09:29 PM..
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Old 12-16-2019, 11:00 PM   #2
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Your sprayer, I don't believe has a transducer, only the 440i and up models. You most likely just need a repack kit, with a possible piston too.
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Old 12-16-2019, 11:56 PM   #3
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Quote:
Originally Posted by MikeCalifornia View Post
Your sprayer, I don't believe has a transducer, only the 440i and up models. You most likely just need a repack kit, with a possible piston too.

the advantage 400 does have a "transducer", which looks like just a mechanical pressure control valve. page 10.
https://cdn.shopify.com/s/files/1/12...30293609759164
https://www.painthose.com/titan-0551...-assembly-oem/





my guess would be packing's or rod as well. Don't know enough about titan pumps to say more without seeing it.

Last edited by cocomonkeynuts; 12-16-2019 at 11:59 PM..
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Old 12-17-2019, 12:41 AM   #4
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That's what I'm unsure of. Because with the front cover off, I can watch the piston while the sprayer runs and there is no fluid coming from the top packing/around the top of the piston. Unless perhaps the upper bottom packing (there are 2 bottom packings stacked together) has torn allowing fluid to escape below the top packing. May need to tear down and inspect the T block internal design
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Old 12-17-2019, 10:27 AM   #5
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Quote:
Originally Posted by Masterpiece View Post
That's what I'm unsure of. Because with the front cover off, I can watch the piston while the sprayer runs and there is no fluid coming from the top packing/around the top of the piston. Unless perhaps the upper bottom packing (there are 2 bottom packings stacked together) has torn allowing fluid to escape below the top packing. May need to tear down and inspect the T block internal design

It is possible the pressure control valve needs replacing...
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Old 12-23-2019, 11:52 AM   #6
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Just an update, I finally received the mechanical pressure transducer and installed it and it fixed the leak.

I had replaced the lower o-ring on the original (10+ year old) transducer but it didn't change anything, replacing it was the fix.

Thanks for the input guys,

Jeremy
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