[C38] Heat exchange

[Robert Miller]

Got the new heat exchanger installed.  Not as bad a job as I thought it
would be.  I found that attaching all the new hoses to the heat exchanger
first before installing it and then hooking up the other ends of the hoses
to the engine and raw water inlet and outlets made the job a lot easier.  I
ran the engine in forward at the slip at 2500 RPM for 45 minutes.  It never
got above 170 degrees.  Before I would have been at 195 - 200 in about 5
minutes.  Thanks to everyone here at this site for the great advice.

 

Bob Miller

"Bolero" at Southwestern YC in San Diego

 

  _____  

From: listserve-bounces at catalina38.org
[mailto:listserve-bounces at catalina38.org] On Behalf Of Steve Smolinske
Sent: Tuesday, September 08, 2009 10:09 PM
To: Catalina 38 Listserve
Subject: Re: [C38] Heat exchange

 

Good point Paul, I manufacture rubber parts for a living and your right
rubber will take a set especially the way the bottom blades are bent inside
the pump.  

 

  _____  

From: listserve-bounces at catalina38.org on behalf of PAUL NOTTE
Sent: Tue 9/8/2009 8:25 PM
To: Catalina 38 Listserve
Subject: Re: [C38] Heat exchange

Just a quick suggestion , When I bought Impulse she had sat idle for almost
a year . I mechanic told me the impeller blades can take "a set" to them he
suggested I replace them so I did

 

   Paul,  Impulse 

----- Original Message -----
From: Chapuys at aol.com
Date: Sunday, September 6, 2009 2:08 pm
Subject: Re: [C38] Heat exchange
To: listserve at catalina38.org

> I have almost finished installing the new heat exchanger on 
> "Bolero" in San 
>  Diego.  Just made my third run to the marine hardware 
> store.  I will  let 
> you know how it works out.  I should probably go the whole 
> 9 yards  and 
> replace the impeller and the thermostat too.
>  
> Bob Miller
> "Bolero" at Southwestern YC in San Diego
>  
>  
> In a message dated 9/6/2009 12:10:53 P.M. Pacific Daylight 
> Time,  
> panotte at shaw.ca writes:
> 
> So I"ve been reading all the info about heat exchangers and 
> feeling prety  
> smug as everything looks good on Impulse. I was going to change 
> the oil  
> yesterday and started the engine to warm things up, poking 
> around as a good  
> obsessive compulsive will I noticed a small leak where the 
> rubber outflow hose 
>  connects to the heat exchanger. Ok you guessed it one 
> little wiggle and 
> there  I was holding a rotted off  piece and muttering 
> curses, while at the 
> same  time giving thanks for this site and all the info. 
> available here. Of 
> course  we were planing one more trip however it will 
> suffer only minamal 
> delay thanx  to this site.
>  I noticed I think it was Steve mentioning 6 knots at 1800 
> rpm I run  at 
> 2200 most of the ti9me what prop do you use?
>   Paul  Impulse
> 
> 
> _______________________________________________
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> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
> 
> 
> 

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