Catalina 34 Starting Battery Problem - SailNet Community
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post #1 of 11 Old 06-03-2002 Thread Starter
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Catalina 34 Starting Battery Problem

I recently purchased a 1989 Catalina 34 with a 23 hp Universal Diesel. I was having a problem starting the engine on the cranking battery so I put in new Interstates for both the house and cranking battery. I have a good West Marine shorepower battery charger that keeps the bateries fully charged and I have checked the batteries with a hydrometer. All is OK. My problem is that even with new batteries, I cannot start the engine on the cranking battery alone. I always have to use "all" to get sufficint power to start the engine. Has anyone else had this problem on a similar boat? I am not sure if I should be looking for corrosion on the wiring terminations or if there may be a deficinecy in the original Catalina wiring?

Thanks for your ideas
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post #2 of 11 Old 06-04-2002
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Catalina 34 Starting Battery Problem

Look for corrosion at the terminal connections and your ground. Also look at your power (battery) switch. There may be internal corrosion, or corrosion at the connections. A loose connection may also be the cause.
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post #3 of 11 Old 06-04-2002
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Catalina 34 Starting Battery Problem

You may also have a starter on the way out.
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post #4 of 11 Old 03-06-2010
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c34 starting problem

I have a 1986 c34.Ihad the same problem,I had to use both battries to start.I relaced all battry cables with larger ones (welding leads) Battries were so far from engine small cables could not handle the draw.Installed two Wal-Mart marine battries,engine now starts on one battery.If your starter battery is close to engine,Iwould check connections and starter.
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post #5 of 11 Old 03-06-2010
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Also check that your glow plug wiring is good if you have them. A lot of Catalinas were wired with the glow plugs getting their power through the panel with small wires. The best solution is to use a solenoid off the engine panel and wire the glow plugs direct from the start battery if this is the case.

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post #6 of 11 Old 03-06-2010
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Cool "regarding fixin' what aint broke"

Strictly in the "FWIW" dept, at about a thousand hours I pulled the starter off of our 23 hp diesel (Universal M25XP) and took it in for a preventative maint. rebuild.
BTW, the inner of the two bolts required a swivel socket and copious swear words.

It had been working OK, starting the engine on either battery.
A mechanic friend advised me to go ahead and do this, as a p.m. idea.

About $135 later it was back, rebuilt, with a new solenoid (they are evidently not a rebuildable item).
The shop is a highly-regarded local marine starter/alternator shop and the proprietor is always willing to explain stuff. He liked the idea of "fixing" this before it might let me down in the midst of summer vacation cruising.
The punch line: it cranked the engine a LOT faster when reinstalled!

So, what slight little lesson there is to be learnt here is that sometimes these parts wear very slowly and performance degrades... slowly...

It's kinda like pulling the injectors and testing the spray pattern every so many hours, it pays to have an engine maint. sched.

As Forest said, "That's all I know about That."


L

Last edited by olson34; 03-06-2010 at 07:58 PM.
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post #7 of 11 Old 03-06-2010
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There is something wrong and it's very unlikely that it's your batts. That starter is a .8 Kw and should easily be started by even a personal water craft battery.

Check:

1) Starter ground to engine (it is case grounded make sure it is clean)
2) All connections
3) Circuit path to starter
4) Starter
5) Battery switch
6) Glow plug circuit and glow plugs. (it is not clear whether it is not cranking or starting)

Also post this over on the C-34 forums (LINK)

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Last edited by Maine Sail; 03-06-2010 at 11:37 PM.
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post #8 of 11 Old 06-03-2015
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Re: Catalina 34 Starting Battery Problem

I too purchased the Catalina 34 last summer. Someone pointed out that I was holding in the glow plug button while trying to hit the starter button. When I released the glow plug button and then hit the start button, no problems, fired right up!
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post #9 of 11 Old 06-03-2015
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Re: Catalina 34 Starting Battery Problem

Congratulations on your new boat. I also owned a Catalina 34 at one time. Great boats! The above advice/comments are all spot on. With any new boat there is a lot to learn. You, however, have a great resource at your fingertips. Go to the Catalina 34 International Association. You don't have to join to use the website, but join them - it's worth it. Look at the "Critical Upgrades" section. Take a bit of time to go over the information there - there's a lot of it. Look at the engine 101 topics. You will find a wealth of information there specific to the starting issues that you are asking about. Have fun with your new boat!!
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post #10 of 11 Old 06-04-2015
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Re: Catalina 34 Starting Battery Problem

I've pretty much changed all the cable between batteries, 1-2-both switch, and the starter, after having had similar issues. I found some large voltage drops due to poorly done crimped connections. The actual wire size was OK, but wire was not tinned, crimps were rubbish, and so on.

What I did was make some 6 ft leads for the multimeter, and measure all the voltage drops between battery, and starter, while cranking, systematically. Was losing 2V at one bad crimp. 2 more, here and there. Now 0.7V in the whole circuit.

Don't mess about, go here and order all new battery cables : genuinedealz.com

They use the proper 4 point hydraulic crimper.

Bristol 31.1, San Francisco Bay
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