Hi Guys, Happy New Year to all. I just wanted to reach out as I believe I am having a very similiar issue regarding overheating.. I bought my 73 catalina 27 this past spring for a straight up trade of my catalina 22 with trailer. I have an A-4 and am told it only has about 100 hrs on it.(so I am told) Now my issue. I have a brand new carb from moyer on it and also had to replace the cast pipe on the exhaust as well as retap the manifiold when switching out the gasket. After running my a4 for a steady 2.5 to 3 hours my motor will cut out entirely and will not restart. If I give the motor time to cool down for 15-20 mins or so and the motor fires right up for another 2-3 hours. I have replaced the coil and am at a loss at this point. The fuel tank is perfect, clean etc. the water pump is pumping , but I can't let go of the idea that there may not be enough water getting thru the manifold to properly cool the motor. The mechanic inspected the manifold when it was taken off to replace the gasket and said it looked fine. Any suggestiong would be great as my wife is no longer loving the boat. (we spent 4 hours on the rocks in buzzards bay on the way home last summer because a storm kicked up and the motor died in a channel which then put us in danger. grrrr) Thanks for reading.
________________________________ From: Michael <[email protected]> To: [email protected] Sent: Thu, January 7, 2010 9:58:11 PM Subject: [IC27A] Re: Overheating Universal 5411 Diesel '82 Ralph, Mark from "Solution" is the one who helped me through this and I've copied & pasted a portion of the email he sent me along with the link that he suggested you use below. I spaced the link so that it doesn't get flagged or removed. Good Luck Ralph and thanks again Mark! Michael Gracie Day #5460 -----Original Message----- From: M.Masterson [mailto:[email protected]] Subject: Re: Over heating It is very common for a salt water cooled motor to get plugged up with salt and corrosion. You won't see the blockage but if water is being pumped in and no water is coming out, your blocked up. There is a process that involves flushing the engine with acid. I have had to do this several times on my old Atomic 4 gas motor. I don't know if the diesels are prone to the problem or not but it's worth checking into. The enclosed link explains how to do the process on an A4. Should be similar to any inboard really. w w w . m o y e r m a r i n e . c o m / f o r u m s / s h o w t h r e a d . p h p ? t = 1 2 7 & h i g h l i g h t = a c i d + f l u s h Try Google on acid flushing and inboard diesel. Good luck! Mark --- In [email protected], "sailmark4" <sail_master...@...> wrote: > > Ralph, > I remember Mike's very similar problem about a year or so ago. I have a gas >A4 in my old C27 but the acid flush process is the same. Go to the Moyer >Marine Community Forum web site and search for the process. It's an easy >deal. The muratic acid sold in good hardware stores is the ticket. It's a >diluted version but you still need to wear gloves and try not to breath the >fumes. I do the process every couple of years and I think most salt water raw >water cooled sailors do too. Good luck! > > Mark > C27 "Solution" > > --- In [email protected], Ralph Siedel <rasiedel@> wrote: > > > > Dear Mike - Thanks for the note and data. I'm in Tucson - about 6 hours and > > the border from the boat but plan a trip the 30th to try the sulfamic acid > > solution. However, I'd like to know the proportions of the muriatic acid to > > water solution also. that way I'd have a second option. I pulled the > > exhaust manifold off the engine in November and found it loaded with black > > gunk and rust- years of sloppy maintenance and neglect -- cleaned out what > > I could reach and flushed water through the block by attaching a garden > > hose to the exit hose from the impeller to the engine -- I got quite a bit > > of water to pass through the head- got pretty wet! I expect to be able to > > suck the solution(s) through the impeller and into the engine. I'll set up > > a bucket for the return hose to catch the "leaving" and recycle the > > solution as the engine heats. I plan to run a trickle of water out the > > exhaust to help keep the exhaust hose cool. I appreciate your advise and > > experiences.Reread your note- I assume "less caustic" means the type of > >muriatic acid sold at hardware stores? This acid is sold in Mexico but the > >sulfamic acid seems hard to get. I assume you sail back east. Most of ours > >is done in the Gulf of California > >  between Baja and the mainland of Mexico. Pretty neat area. Again -- > > thanks for the Info and hope you can find the proportions for the > > solutions. RalphAnnaBelleLee '82 Catalina 27-- 5456 ! > > --- On Wed, 1/6/10, mlong9876 <mlong9876@> wrote: > > > > From: mlong9876 <mlong9876@> > > Subject: [IC27A] Re: Overheating Universal 5411 Diesel '82 > > To: [email protected] > > Date: Wednesday, January 6, 2010, 11:28 PM > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >  > > > > > > > > > > > > > > > > > > > > I posted the same problem on here when I first got my boat. It > >overheated terribly in the first 2 hours of a 100 mile trip from the south > >shore of Long Island through the city to the north shore so we had to sail > >most of the way, and of course, the wind was directly on our bow the whole > >trip. I posted a message on here and received lots of great responses, > >mostly involving the impellor and the water pump. I had a mechanic come down > >and remove everything and clean it the best he could. He forced water though > >and made it come rushing out (under pressure). I thought the problem was > >resolved even though it wasn't "spitting" out water the way my neighbor > >(old, salty powerboater) thought it should. I assumed that because it was a > >small diesel and had already been cleaned by a professional that this was > >the best I would get. > > > > > > > > I took the boat out again and ran the engine a little longer than I "should > > have" and it happened again. One of the suggestions I didn't take from > > someone on here was to do a muriatic acid flush. I had heard the same > > things you heard and thought it was a little too extreme now that water was > > coming out, but obviously something had to be done. I followed the > > suggestion and did a muriatic acid flush and now the water comes rushing > > out the way it should. My old, salty neighbor approves too! > > > > > > > > If I can find the link he gave me showing how to do it, I'll post it here. > > > > > > > > I was only going to buy the heavy duty stuff because I thought, "if I'm > > going to do this, I'm going to do it right" but the guy in the hardware > > store told me that the less caustic version worked just as well and is way > > less damaging to the skin. I'm not one for gloves or goggles and this is > > definitely a job where this stuff could get on you so I recommend the less > > caustic version. > > > > > > > > Good luck. > > > > > > > > Michael > > > > Gracie Day > > > > '84 Catalina 27 #5460 > > > > > > > > --- In ic...@yahoogroups. com, "rasiedel" <rasiedel@ .> wrote: > > > > > > > > > > Years of other owner's neglect and mine have lead to little or no salt > > > water running through my 27. She is located in San Carlos, Sonora, Mexico > > > and I visit- and work on her 2 or 3 months a year. She sits on a trailer. > > > I have checked and replaced the impeller, checked all hoses and elbows. > > > removed the exhaust manifold and cleaned out what I can see. I have be > > > advised to run Sulfamic Acid, in a solution, through the cooling system-- > > > haven't done this yet -- Others suggest Muriatic Acid but warn of losing > > > gaskets. Other than a total removal of the engine and machine shop > > > "cooking" --- I've run out of ideas-- Any suggestions? ? Ralph > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > ------------------------------------ Yahoo! Groups Links [Non-text portions of this message have been removed]
