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Old 27 September 2010, 13:29   #1
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Stubborn Mariner

I have a 1997 150hp V6 and since it has come to be mine ( 6 years ago)I have never experienced good starting. It is ok from hot but cold I usually get when turning the ket a whir then an elongated click, sometimes if I am lucky it will start after 6-10 atemps, bloody frustrating. Does anybody else suffer the same problem with their Mariner, if not what do you do as a starting sequence? This engine is well maintain and serviced every year. The bats I have are two 120ah Squadron marine. I was wondering if the engine is not charging my batteries and therefore there is not enough power to turn on starting from cold.
AS you can see I am annoyed as I was left on the rib with nowhere to go yesterday!!
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Old 27 September 2010, 16:38   #2
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engine

Hi , what are the COMPRESSIONS ?????
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Old 27 September 2010, 16:58   #3
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My Yam 55 is like that, once its fired though its fine, never bothered looking in to it....
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Old 27 September 2010, 17:04   #4
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Quote:
Originally Posted by outboardtech View Post
Hi , what are the COMPRESSIONS ?????
Sorry outboardman I do not have a clue!!! But if you think it is a afult I will get them checked at the winter service.
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Old 28 September 2010, 04:45   #5
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morning
if you want to give me a ring or send your phone number to me i will try to talk you through the possible causes if it is any help to you.
regards
alan
01869 326411
alan.surman@barrus.co.uk
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Old 28 September 2010, 05:38   #6
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Do you use the fast idle lever?

May seem like a daft Q, bnut I discovered that my "choke" is actually an enrichening valve, i.e. instead of cutting air, it chucks more fuel in.

Net result is that if I use the fast idle lever, it opens the throttle, allowing more air in & cancels the "choke" effect of afdding more fuel.

Used to take forever to get going until that dawned on me. Since then I start it on choke alone. - Fires almost instantly from cold - guaranteed.


That is of course all irrelevant if your choke lever / solenoid moves a flap across the airways!
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Old 28 September 2010, 05:55   #7
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Put a dc volt meter on the starter motor main red cable and ground. At cranking the voltage eshould be around 11 vdc or more. (use no choke or throttle when cold, so it does not start for this test, or ground ht cables. )

If the voltage is nice and high, and it does not turn over great look at; solenoid , starter motor or ring gears

If the voltage is too low on the starter motor when craqnking ; look at battery voltage when cranking, it too should be 12 vdc or more when cranking. If not, its not chargered or faulty..
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Old 28 September 2010, 11:38   #8
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I assume the motor doesn't crank while it's whirring?

Whir and click sounds like a sticky solenoid. The whir is the starter motor turning with no load, and the click is the solenoid kicking the gear into the flywheel teeth.

As a couple of guesses, I would suspect either the solenoid itself, or a poor electrical connection to the solenoid coil.

jky
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Old 28 September 2010, 12:03   #9
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Cheers guys I will check all the suggestions when I am next up at the rib which will be 8th Oct and post the results here.
Many thanks

J
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Old 28 September 2010, 13:08   #10
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Quote:
Originally Posted by 9D280 View Post
Do you use the fast idle lever?
And another daft one .. I take you push the key 'inwards' too when turning to start ? as that used to be what overfuelled mine when cold
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