[C320-list] Overheating Perkins Perama M30

[Warren Updike]

Don't overlook the possibility that your temp gage is in error.  My #62 has
always run at about 180 deg. regardless of the water temp.

Warren & Pattie Updike
1994 C320 #62 "Warr De Mar"


-----Original Message-----
From: jpmesa at aol.com [mailto:jpmesa at aol.com] 
Sent: Tuesday, July 10, 2012 10:44 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Overheating Perkins Perama M30

We have #112 and our Perkins has always run at about 195. That is after it
has been running for a awhile and with a load on it.  I don't know if you
have an updated alternator or anything else on your engine. Good luck, JOHN


-----Original Message-----
From: Donald Poole <dpoole15 at gmail.com>
To: C320-list <C320-list at catalina320.com>
Sent: Mon, Jul 9, 2012 6:33 pm
Subject: [C320-list] Overheating Perkins Perama M30


First time out  in my recently purchased 1994 Catalina 320 (#0047). I had
checked all fluids ( Oil, Transmission, Cooling water) before starting the
engine. The coolant was low ( I had had most of  the engine hoses replaced
so I was not that surprised). After motoring about 10 minutes I noticed my
engine heating up. Rose to ~220F.  I shut it down, let it cool, then checked
the coolant level again. It was low. Started the engine and added coolant
with engine running assuming I had air in the system. Once full I recapped
and continued to run. Engine crept up to 200F at a 1500-1800RPM idle. Oh
yes, I did check the raw water/exhaust discharge first and it appeared to be
fine. A good bit of warm water exiting. I had also had the raw water pump
impeller replaced when they did the hoses. Looking for suggestions as to
what to check next.