Word of caution.....only open the ends of your heat exchanger if you
have 'new seals' to replace the old ones that might not survive the
operation.
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-05-05 1:51 AM, svpegasu...@gmail.com via CnC-List wrote:
If you have a heat exchanger, that could be getting clogged. Open the
end/s and look at the tubes. Sea water flows through these cooling the
coolant. Over time they plug up and need to be cleaned. I use a long
drill bit and doubled up 0.040 safety wire, then a bore brush.
Doug Mountjoy
svPegasus
LF38
just west of Ballard, WA.
------ Original message------
*From: *Tom Buscaglia via CnC-List
*Date: *Mon, May 4, 2015 18:19
*To: *cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>;
*Subject:*Stus-List Overheating as high RPM only
We did a run last weekend to a local harbor for the weekend. Windwas
fluky and it was a short trip so we were motoring. Alera has aYanmar
3HM35 with around 700 original hours and was running fine at ourusual
cruising RPM of 26-2800 on the tach. The hot alarm went offand I let
her cool down and then ran at a lower ROM (1800 or so) and nomore
alarms. When I got to our destination, I cleaned out the rawwater
trap as it was pretty crapped up. On the way back the alarmwent off
again but this time all I had to do was throttle back to around2200
and it was fine. Much less steam/smoke that on the wayout.
Today I checked the fan belt on the pump and it was a little loose so
Itightened that. I'll be getting her hauled next week for a
pressurewash, prop grease and zinc replacement, and will check the
intakethen.
Aside from the intake, belt and crap trap, anything else I shouldcheck?
Tom B
Tom Buscaglia
SV Alera
1990 C&C 37+/40
Vashon Island WA
(206) 463-9200 <tel:%28206%29%20463-9200>
www.sv-alera.com
<http://www.sv-alera.com/>
_______________________________________________
Email address:
CnC-List@cnc-list.com
To change your list preferences, including unsubscribing -- go to the bottom of
page at:
http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
_______________________________________________
Email address:
CnC-List@cnc-list.com
To change your list preferences, including unsubscribing -- go to the bottom of
page at:
http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
