[C38] C38s with Yanmar exhaust elbows

[Robert Miller]

Thanks, Rick.  I can't wait.  Actually I was loosing power for about a year
very gradually.  I had replaced the prop with a British "Autoprop" and
thought that perhaps the prop was too big.  It is a 15" diameter auto
variable pitch prop which the manufacturer swore was the proper size.

More after Alfredo installs the new exhaust system.

Bob Miller
"Bolero" #113
Southwestern YC in San Diego

-----Original Message-----
From: listserve-bounces at catalina38.org
[mailto:listserve-bounces at catalina38.org] On Behalf Of Rick Swensson
Sent: Thursday, February 25, 2010 4:34 PM
To: Catalina 38 Listserve
Subject: Re: [C38] C38s with Yanmar exhaust elbows

We had the same problem in Rascal.  New exhaust elbow and riser (keep it
light since there's a lot of torque on the elbow from the tall riser)
You'll love your new sense of power with a cleaned out exhaust!

Rick Swensson
----- Original Message -----
From: "Robert Miller" <chapuys at aol.com>
To: "'Catalina 38 Listserve'" <listserve at catalina38.org>; <anders at finn.ws>
Sent: Thursday, February 25, 2010 3:23 PM
Subject: [C38] C38s with Yanmar exhaust elbows


>
> I was gradually losing power from my Universal 5424 diesel.  Last week I
> took her out and was only able to maintain 1700 rpm at full throttle.
With
> visions of a new engine haunting me I called the legendary Alfredo who is
> one of the best known diesel mechanics in San Diego.  He ran the engine,
> checked out the injectors and said "your engine is fine."  "It's probably
an
> exhaust restriction."  He pointed to the Yanmar elbow and said that they
are
> prone to clogging.  20 minutes later he had the exhaust system removed and
> broke the elbow with a hammer.  What had previously been a 1 3/4" passage
> was now completely clogged with carbon with two passages less than 1/8" in
> diameter.  He is fashioning a new pipe system minus the elbow and will
> install a new exhaust flange.  He will be back next week to install it.  I
> will let you know how it works out.  If anyone has one of those elbows and
> is losing power, check it out.
>
> Bob Miller
> "Bolero" #113
> Southwestern YC, San Diego
>
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
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