[Public-List] yanmar question

[Hans Thomas]

Hello -
My yanmar 2GM20F (freshwater cooled w/ a heat exchanger) is giving me a bit of a perplexing problem. After sitting for about a month, the water channel in the mixing elbow plugged up, so that no water was coming out the exhaust(although it was shooting out the bypass). So, I replaced the mixing elbow and the water flow thru the exhaust looked good. But in running it for a while this weekend, the exhaust water never warmed up (although the engine didn't overheat even after running at ~2000RPM for about an hour). And the engine didn't overheat either (I didn't shoot it with a thermometer, but I was still able to touch the block and head without burning myself).

I am planning on replacing the thermostat and pump impellers on both the freshwater and raw water, tightening the belts, and flushing the coolant, but any other advice would be appreciated.

Regards -

Hans Thomas
Pearson Triton "Solitude", Alameda, CA
"la mer ne pardonne pas" - James Keelaghan, "Captain Torres"



----- Original Message -----
From: "Kirk Little" <kirkalittle at hotmail.com>
To: public-list at lists.alberg30.org
Sent: Monday, October 29, 2012 4:49:50 AM
Subject: [Public-List] Paul Vibert Mast Repair, Help Needed.


Well here is a chance to put the list to a very good use helping Paul 
out.  Here is the most recent email asking for some advice from the 
list; 



<<<<<Am having difficulty finding a replacement mast but was thinking...


Do
 you think it would be possible to make a temporary hollow stick using 
lumber (ie. 2x6), glue, and a ton of screws.  It would need only be 
about 26 feet or so and would only be for the run to South Africa under 
reduced sail.  I would put additional shrouds on it to increase it's 
integrity or perhaps even a second pair of spreaders as well.  



Would
 you please run this by some of the folks in the association who may be 
more informed in this area than I and may be willing to offer 
suggestions or insight.  Keep in mind that I have crude materials and 
rudimentary tools so there will be no smooth planed edges and I suspect 
that I may not even be able to find the proper glue nor clamps.



Please get back to me when you can.


Paul


P.S.  The wooden stick need only last 14 hundred miles.>>>>>


For the sake of timeliness I would suggest that any replies of value get
 emailed directly to Paul or if you post to the list should probably be 
forwarded to Paul here (pvibert at yahoo.com) as well. I'm under the impression he may not subscribe.  



Something else to consider regarding suggestions for the mast, Paul says
 he only needs to go 1400 miles, however that particular stretch of 
ocean has reputation for being extremely nasty at times.  I personally 
have at least three friends that were all rescued off the coast of S.A. 
and that was in one season.  Dozens other that I didn't know personally 
also called for assistance as well that same season.   Cornell's book 
says "Several of those who have made this passage described it as the 
toughest let of their entire voyage.  It is therefore essential to 
prepare the boat thoroughly for this passage".  Then when finally 
closing on the coast he will be crossing the Alguhas current which will 
likely be running up to 3 or 4 kts with real possibilities of strong 
wind on tide.  Just some things to consider when making any suggestions 
here, it can be temporary, but it has to be strong.  



Thanks. -Kirk  		 	   		  
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