[C320-list] Perkins M30 Oil Change

[Bob Borelli]

I use the second method to hand pump the oil out of my Perkins M30.

A is the coolant drain, a 1/4" ID vinyl tube fits over the nipple to drain coolant into container.
B is the tube I use to pump out the used, warm oil from the oil pan, annual oil change, using a threaded barbed fitting.
C is a lube oil tube from the cylinder block to the cylinder head.

I tried pumping oil from the dip stick, also slide tube down dip stick, no success.
So I remove the old oil from B.

I remove the old oil filter first to allow for room.
Then I remove the Cap Nut on B with a 7/16" open end wrench.
Then I screw in a 3/8"x 1/4" Adaptor Barb MIP purchased at Home Depot.
A 3/8" ID vinyl tube is attached to Barb and other end to a PAR Handy Boy hand pump.
A fast, clean oil change!
Re-install Cap Nut, add new Fram PH2951 filter & Shell Rotella T1 SAE 30 Heavy Duty Diesel Engine Oil.

What oil & filter are you guys using on your Perkins M30?

There is also an oil drain plug on the aft end of the pan, under the oil filter, reachable with a socket but how to catch the old oil without a mess.
I use oil absorbant cloths from Amazon Prime.   Plastic gloves, 13 gal plastic trash bags, blue Shop Towels & Spray Nine Marine cleaner.

Bob Borelli 1995 C320 no. 209   Sailing Associates Inc, Georgetown Maryland

________________________________
From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of mark <mseyler at cox.net>
Sent: Monday, February 1, 2021 8:19 PM
To: C320-List at Catalina320.com <C320-List at Catalina320.com>
Subject: Re: [C320-list] Perkins M30 Oil Change

A is definitely the drain for coolant, and I'm pretty sure that B is the tube to drain oil.  I'm not sure what the label for C is referering to, but it's not the oil drain tube or coolant drain.

I've been sucking the old oil out the dipstick tube for oil changes on my Perkins.  (I figure that since there are only about 25-30 hours on the engine between my annual oil changes, any small amount of old oil left behind won't matter much.)  But if anyone has figured out the size fitting to attach the hose barb, I'd like to know as well.

Mark Seyler
S/V Reality,
Catalina 320, #232
New Orleans, LA



-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Dave Hupe
Sent: Monday, February 01, 2021 6:57 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Perkins M30 Oil Change

 Dave-
I'm pretty sure "A" is the petcock to drain engine antifreeze,  and "B" I'm pretty sure is another way to drain the engine oil. I think it has a threaded cap on it.
Dave Hupe1994 C320 (#32)Perkins Perama M30