[C320-list] Overheating Perkins Perama M30

[Chris Nichols]

Have you tried a laser thermometer on different bits of the engine to see if the built in one is calibrated accurately?

Chris Nichols
Personal account


On 9 Jul 2012, at 21:33, Donald Poole <dpoole15 at gmail.com> wrote:

> 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.