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Post by JohnB on May 4, 2022 9:52:41 GMT
At the start of last season we had an issue with our previously very reliable Yanmar 3YM20 – when turning the ignition key the warning alarm sounded but absolutely nothing happened – completely dead; generally it would start on the second or third attempt. The battery showed as fully charged and we had the starter motor bench tested and checked all wiring possible. In the end it was decided the ignition barrel was faulty so it was changed and this seemed to cure the problem until however we launched last week and it is exactly the same as last year – an intermittent fault that could prove very inconvenient. My thought is possibly the starter solenoid (not sure if this was tested along with the starter motor last year), in which case a relatively easy fix. Before I go down this route are there any thoughts from the panel please?
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Post by lateron on May 4, 2022 11:27:20 GMT
Hi John B
I too have a 32 and in Levington F183.
I had a problem sounds similar though my boat has a push button start on Yanmar 2gm20.
Sometimes I have had to press the button any number of times but nothing ...no clunk from the solenoid etc . I replace d the button 3 times but the fault persisted.
I have now had the long wire from the solenoid to the starter button replaced with thicker gauge wire and for the last 6 months everything is now ok . [Also replaced thick battery wire to starter motor with beefier one.]
First push now something happens. Hope I'm not talking something up but it is a known fault on Jeanneau32.
Maybe worth a look.
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Post by JohnB on May 4, 2022 15:43:20 GMT
Cheers Ron, that's great advice - many thanks. Antony Kettlety is going to take a look for me, so i have passed this information on.
Cheers John (E134)
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Post by Chris Meyer on May 4, 2022 20:29:18 GMT
Hi John B I too have a 32 and in Levington F183. I had a problem sounds similar though my boat has a push button start on Yanmar 2gm20. Sometimes I have had to press the button any number of times but nothing ...no clunk from the solenoid etc . I replace d the button 3 times but the fault persisted. I have now had the long wire from the solenoid to the starter button replaced with thicker gauge wire and for the last 6 months everything is now ok . [Also replaced thick battery wire to starter motor with beefier one.] First push now something happens. Hope I'm not talking something up but it is a known fault on Jeanneau32. Maybe worth a look. We had a Beneteau 321 with the same problem 15 years ago. Fixed with a solid wire as you suggested from the starter button the the solenoid. Never had the problem again. Someone explained that connectors in the wiring harness can get corrosion and therefore stops the connection. Good luck! Chris |
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Post by sitara on May 4, 2022 22:02:15 GMT
Same problem with my 3YM30 push button start. At first it seemed to be caused by the connections to the starter solenoid but was difficult to identify as the fault was very intermittent. Last winter I replaced the hour meter and had to remove the cockpit instrument panel to do so. When I replaced everything I gave all the connections, which all looked very clean, a good spray with WD40. So far I have had no start problems at all this season. My engine is factory fitted with an extra solenoid to avoid the problem with a long wire run to the starter solenoid. As a precaution I have fitted an emergency start button in the engine bay, connecting a 12 volt source through a push button to the starter solenoid. Proved very useful once to get out of the way of a ferry in a narrow channel.
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Post by Chris Meyer on May 5, 2022 10:59:29 GMT
Same problem with my 3YM30 push button start. At first it seemed to be caused by the connections to the starter solenoid but was difficult to identify as the fault was very intermittent. Last winter I replaced the hour meter and had to remove the cockpit instrument panel to do so. When I replaced everything I gave all the connections, which all looked very clean, a good spray with WD40. So far I have had no start problems at all this season. My engine is factory fitted with an extra solenoid to avoid the problem with a long wire run to the starter solenoid. As a precaution I have fitted an emergency start button in the engine bay, connecting a 12 volt source through a push button to the starter solenoid. Proved very useful once to get out of the way of a ferry in a narrow channel.
Great idea to put in an emergency start button! I need to think about how to do that. Chris |
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Post by rcsailor on May 6, 2022 15:53:43 GMT
If you continue with engine start issues try adding a grounding wire from the starter to the engine. The starter flange to engine mount often corrodes resulting in a poorly grounded starter motor.
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Post by cdrmike on Aug 17, 2022 14:10:16 GMT
We have had an intermittent start problem on our 34.2 fitted with a Yanmar 3GM30F engine for several years and tried all the aforementioned fixes and even fitted an emergency start switch directly to the solenoid which together with use of the valve lifters has got us going. The problem often occurs when the engine is very warm after a long run and has only been shut down for a short time ie when at the fuel berth. When cold or slightly warm, the starter works normally with no problem but if hot, it struggles to start the engine as if the battery is low and that is when opening the valve lifters and using the emergency starter switch comes into use.
All connections have been cleaned off including the earth connection and retightened, additional relays replaced, thicker wire run from the starter button to the solenoid etc etc all to no avail. The next step is to remove the starter and have it thoroughly examined by a specialist company but if there are any other suggestions out there I would be delighted to hear them. By the way the starter is not the original and we had similar episodes with that one too before fitting the present refurbished unit.
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