Boats For Sale:
Pitot Pulsation Dampers |
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akora12 
Groupie 
Joined: January-03-2011 Location: FW IN Status: Offline Points: 91 |
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 Topic: Pitot Pulsation DampersPosted: February-06-2015 at 12:19am |
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^ Good call, Pete! Fortunately, I just got the dampers pulled tonight and there were no leaks at 20 psi. Once I got them wiped down, they basically looked new! Thanks everyone!
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'86 Silver Nautique 2001
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8122pbrainard
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: February-05-2015 at 5:23pm |
Have you ever see a big tank under a air compressor? Besides storing the air, it also stops pressure pulsations from every stroke of the air compressors piston. How about a pulsation dampener on a hydraulic system. Same principle! BTW, if you do find a leak, solder it up. Many including myself have done it. |
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akora12
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Joined: January-03-2011 Location: FW IN Status: Offline Points: 91 |
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Posted: February-05-2015 at 4:22pm |
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^ Good to know. It's hard to imagine that a hollow tube would do much of anything, but I guess a larger volume of air in the line helps to slow down the transfer a bit.
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'86 Silver Nautique 2001
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DrCC
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Joined: April-12-2004 Location: at home Status: Offline Points: 2867 |
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Posted: February-05-2015 at 3:19pm |
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There are no baffles inside. Just a plain hollow brass tube.
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akora12
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Posted: February-05-2015 at 2:53pm |
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'86 Silver Nautique 2001
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Air206
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Joined: September-28-2008 Location: Roanoke, VA Status: Offline Points: 3000 |
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Posted: February-05-2015 at 2:32pm |
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I think I have 1 or 2 if you need a replacement.........
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akora12
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Posted: February-05-2015 at 1:14pm |
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^ Great, I'll air test them separately from the hoses and go from there!
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'86 Silver Nautique 2001
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: February-05-2015 at 1:10pm |
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Ryan,
If they don't leak, they are good. As Zach mentioned, do not exceed 30 PSI. When they do get damaged, the common cause is from freezing when the pitots get plugged and water stays in the dampener. |
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akora12
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Posted: February-05-2015 at 1:10pm |
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Thanks, Zach. I'll check the inlets and outlets once I have them pulled. I know they're physically intact on the outside. Do you know if there's baffling or something on the inside that can gum up?
I tested the lines with low psi and it was still evident that the left side was losing air between the gauge and pitot. |
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'86 Silver Nautique 2001
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phatsat67
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Joined: March-13-2006 Location: Indiana Status: Offline Points: 6157 |
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Posted: February-05-2015 at 1:06pm |
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I have seen the tops and bottoms become delaminated from the tube. They basically only need to let air pass thru. If you use lots of pressure it is possible to blow the tops off of them.
I have considered farming out a company to make an aluminum replacement or even plastic but I haven't done much research. It's possible sediment has accumulated inside over the years and hardened over most likely the outlet hole. |
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akora12
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Posted: February-05-2015 at 1:00pm |
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Does anyone know if these go bad, and if so, how to test them? I purchased my boat with one non-working speedo and have traced the problem to the lines and/or pulsation dampers with compressed air. Both speedo's were recently rebuilt and the pitots are free and clear. While I have everything ripped apart, I'd like to ensure the pulsation dampers are working as well. Thanks!
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'86 Silver Nautique 2001
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akora12 wrote: