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Author Topic:   Ventilation Clam Shells for Drain Tube
LarrySherman posted 07-29-2001 09:26 PM ET (US)   Profile for LarrySherman   Send Email to LarrySherman  
Does anyone know where I can get them? I had 8 of them, about 1.25" X 2" brass with 5 holes. I have not been able to find any replacement yet. Also, are these origional equipment?

Thanks, Larry

tobes posted 07-30-2001 06:49 AM ET (US)     Profile for tobes  Send Email to tobes     
Larry, I had the same problem. The only small vents I could find and I looked everywhere, were ones made by perko 2x2 chrome plated bronze with ? six holes. Thease were the same size as mine. 84' 22' Outrage
LarrySherman posted 07-30-2001 09:55 AM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
Thanks tobes, that helps. I'll look through the perko cat.


Tom W Clark posted 07-30-2001 10:07 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     

I always thought they were Perko ventilators, but perhaps not. The Perko clam shell is available 1.625 x 1.5 or 2 x 2. Both mount using three #6 screws.

Do you think Whaler drilled an extra set of holes in the Perko part for added strength? Could you?

Perko 2 x 2 part: #315 DP2 CHR

LarrySherman posted 07-30-2001 11:17 AM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     

I guess I could, but I am wondering if the chrome-plated brass is the best stuff to use below the waterline. I sent an email to Chuck Bennett asking for his advice on the whole drain tube/ventilator issue. I'll post the response.


bigz posted 07-30-2001 12:19 PM ET (US)     Profile for bigz    
Don't wonder any longer Larry -- the BW part was as of '95 -- 12-1608-00 they were 2x2 chrome/bronze clam shells sold for a about $3 a pop! Same ones used all through the 80's -- Perko may have drilled a few more holes at BW's request --

Might ask what better material than chromed bronze would you use? These are disposable items always seemed to be ripped off or crushed ---

LarrySherman posted 07-30-2001 02:05 PM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     

I was thinking that 316 stainless would be better, but if the perko part is the right one, then thats what I'll use.

This really is a great site/community, isn't it?

Bigshot posted 07-30-2001 02:14 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
I have ripped off transoms, railings, windshields, consoles, seats, hatches, engines, etc. But i have NEVER lost a clamshell. How weird?
where2 posted 07-30-2001 06:03 PM ET (US)     Profile for where2  Send Email to where2     
In such close proximity to the bronze drain tube, chrome plated bronze would be the material of choice to avoid corrosion problems on the drain tube. Especially, if the two touch one another.
LarrySherman posted 07-30-2001 10:35 PM ET (US)     Profile for LarrySherman  Send Email to LarrySherman     
d... good point!

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