[C320-list] Engine stall only under load

[Dingo Is Talent]

JERRY is Right Donald 
Exhaust Mixing Elbow will be it if it hasn't been replaced in 4 - 5 years.
Mine clogged up with corrosion which causes back pressure into motor causing it to run poorly...
Motor revved perfectly when NOT under load...as soon as under load it ran low revs and pumped out some dark smoke..
It is caused by the sea water coming in to cool the exhaust which builds up corrosion over time in the elbow reducing the volume going through the PONG box and out..
DINGO
Down Under 
1150

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Jerry Clayton
Sent: Tuesday, 21 January 2014 8:41 AM
To: Donald Poole; c320-list at lists.catalina320.com
Subject: Re: [C320-list] Engine stall only under load

When was the last time the exhaust mixing elbow was replaced? 

Regards, 
Jerry Clayton
#988 (2004)

<div>-------- Original message --------</div><div>From: Donald Poole <dpoole15 at gmail.com> </div><div>Date:01/20/2014  4:35 PM  (GMT-08:00) </div><div>To: c320-list at lists.catalina320.com </div><div>Subject: [C320-list] Engine stall only under load </div><div> </div>Perkins M30. I can idle for hours regardless of RPM (1000, 1500, 2000,
2500) but she stalls when I am underway. I have changed both primary and secondary fuel filters and the fuel lift pump. still stalls. Anyone have a suggestion of what I can try next. I'm thinking there may be a fuel tank problem ( vent or pick up line ) That's my next stop. If that's it I'll post the result. Appreciate any guidance or even just ideas.