[C320-list] Black Smoke

[amshd2 at aol.com]

I agree sounds like a restricted exhaust elbow.? I would also check the prop and shaft.? Alot of crittes on teh prop will also cause similar problems...



I have a 94 with a perkins and had to change teh exhaust elbow a couple of years ago.


-----Original Message-----
From: Peter Clancy <sailorpete at msn.com>
To: c320-list at catalina320.com
Sent: Thu, Aug 20, 2009 8:09 pm
Subject: Re: [C320-list] Black Smoke





Black smoke and loss of RPM are signs of a restricted exhaust elbow. However, I 
don't know why your problem is intermittent rather than continuous? You might 
have blown enough soot out to temporarily reduce the restriction. You may also 
see an increase in engine operating temperature.

 

Peter Clancy

Miami   

          
 
> Date: Thu, 20 Aug 2009 14:13:11 -0700
> From: fgrimann at vcc.ca
> To: C320-List at Catalina320.com
> Subject: [C320-list] Black Smoke
> 
> My Perkins engine emitted black smoke and eventually did not deliver more than 
1500rpm at wide open throttle in gear or neutral.
> Idle quality was good.
> Checked drive shaft - free; propeller - OK; no air intake restriction. 
adjusted valves.
> Checked connections at fuel injection pump and checked throttle movement 
several times.
> Restarted engine and rev'd engine to wide open throttle in neutral - now 
3600rpms. Went for a cruise at wide open throttle for 15 minutes - now 3600 rpm 
and no black smoke;
> What gives?
> Any suggestions? 
> 
> Fred G
> Catalina 320, #69
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