[C320-list] Perkins M30 Oil Change last drops

[Jeff Church]

Darrell,

Good point. I replaced a petcock on my Yanmar's heat exchanger with a 
threaded barb. The pitch and diameter of the metric and American (ANSI?) 
pipe threads appear to be identical, but the diameter of the metric piece is 
slightly smaller than 1/4 NPT.  It would be very easy to mistake them for 
the same size and try to force the issue.

JeffC


----- Original Message ----- 
From: "Darrell" <dgray at n-sea.org>
To: "C320-List" <C320-List at catalina320.com>
Sent: Thursday, May 11, 2006 2:17 PM
Subject: Re: [C320-list] Perkins M30 Oil Change last drops


> Hi Warren, just curious wouldn't the thread on the pipe be metric like
> everything else on the engine? Darrell
> ----- Original Message ----- 
> From: "Warren Updike" <wupdike at hotmail.com>
> To: "Catalina 320 Mail List" <C320-List at catalina320.com>
> Sent: Thursday, May 11, 2006 10:58 AM
> Subject: Re: [C320-list] Perkins M30 Oil Change last drops
>
>
>>I bought a WM manual pump type oil changer that works well.  I started by
>>sucking it out of the dip stick tube and wasn't happy with that as I was
>>only getting out 3 quarts.
>>
>> Then I found a metal pipe that comes out the stbd side of the engine down
>> above the oil pan.  This pipe has a threaded nipple in it.  At our marine
>> store, I bought a hose barb with a pipe thread.  I think it was 1/4".
>> This screws into the top of the pipe when the nipple is removed.  Now, I
>> get nearly all 4 qts of oil when I pump it out.
>>
>> You can buy a 12v self-priming pump suitable for oil and permanently 
>> mount
>> it in the engine compartment with a hose permanently attached to the 
>> drain
>> pipe.  Then changing is a snap.
>>
>> I've also seen such a pump set up so that it can be used to drain the 
>> pan,
>> then pump new oil into the valve cover.  Makes the process a snap.
>>
>> Warren & Pattie Updike
>> C320, #62, 1994, "Warr De Mar"
>> Frog Mortar Creek, Middle River
>> Chesapeake Bay
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