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Loud continuous clicking - no start

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chadz
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Loud continuous clicking - no start

Postby chadz » Sun Sep 09, 2018 5:29 pm

Hi,
My mk2 has developed a fault when trying to start. A loud continuous clicking without turning over the engine. I've checked the battery connections and voltage (14+Volts at battery terminals). The starter motor is as far as I can tell original equipment, 20 years old.
Can anyone advise what the problem is pse ?

Chadz :confusion-confused:
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Re: Loud continuous clicking - no start

Postby Mazda Mender » Sun Sep 09, 2018 5:45 pm

Do you have a vid of the noise or where it is coming from?
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chadz
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Re: Loud continuous clicking - no start

Postby chadz » Sun Sep 09, 2018 8:02 pm

No. The noise is somewhere in the engine comp. Because it only occurs when the ignition switch is activated I can't shoot vid of the suspected location. The best I could do is record the sound as it occurs with attendant vid.
It sounds like a metallic origin stacato source. Almost a chatter, rapid and constant while the key is operated.
Hope its not the starter. Is this a DIY job?

Chadz. :confusion-confused:
MarkEt
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Re: Loud continuous clicking - no start

Postby MarkEt » Sun Sep 09, 2018 8:43 pm

I’d bet on a relay clicking ?
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Re: Loud continuous clicking - no start

Postby blackyb » Sun Sep 09, 2018 10:22 pm

Relay or the starter motor would be my guesse, check the connections and in particular the earth.
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Re: Loud continuous clicking - no start

Postby Mazda Mender » Mon Sep 10, 2018 6:27 am

Have someone turn the key while you pin point where the clicking is coming from.
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
MK 2.1/4 Blue V.S Roadster 1.8 99 ...being rebuilt

http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
safetymatch
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Re: Loud continuous clicking - no start

Postby safetymatch » Tue Sep 11, 2018 7:19 am

Re-check the battery voltage as it's almost definitely a flat battery.
Remove and clean the battery posts and the inside of the battery clamps.
Also remove and clean the starter solenoid ring terminal connector.
Remove clean the earth strap.

Please note the key words are 'remove and clean' don't just look at them and presume because they look and feel ok.

Also an unlikely but possible fault is the starter motor is loose, as the motor needs to be tight to create an earth.
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chadz
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Re: Loud continuous clicking - no start

Postby chadz » Tue Sep 11, 2018 4:36 pm

Thanks guys, I would think from what has been said that the battery is at fault. I have removed and cleaned the battery connections/terminals and used vaseline to prevent corrosion, of which their was none. The dismantling of the connections to the starter motor is something I cannot do as I do not have access underneath the car. These connections, if corroded would almost certainly have caused intermittent starting problems which I have not experienced, so for the time being I have ruled them out.
One thing I have done is to check the battery voltage under load whilst operating the ignition/starter switch. From 14+ volts across the battery terminals no load it dropped substantially to less than 5 Volts under load. This must surely be a duff battery! The rapid clicking must be the starter solenoid making and breaking as it is not receiving the required volts/amps to operate correctly.
Does this sound feasible? Have I carried out the load test correctly? I've never carried out a test like this before but I would think that the drop in voltage should not be this dramatic.
Can anyone think of another way to put this battery under load as a double check. If the battery is dead the good news is that it is still under warranty so I should get another one as a replacement.

thanks,


Chadz :coffee:
safetymatch
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Re: Loud continuous clicking - no start

Postby safetymatch » Tue Sep 11, 2018 5:09 pm

You have done exactly the right thing re drop testing a battery, i'd 99.9% guarantee a new battery will sort your problem.

I see this kind of problem quite often in my job.
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Quad tipped exhaust.
Stebel horn.
More cosmetic bits than you can shake a stick at.
And yes it is a Sunday car.
chadz
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Re: Loud continuous clicking - no start

Postby chadz » Wed Sep 12, 2018 5:32 pm

As suspected the battery has a dead cell. This was verified by using a battery analyser. Fitted a new battery this afternoon and it has cured the problem. Still can't work out why it showed 14+ volts no load. Any ideas?

Chadz. :text-thankyouyellow:
safetymatch
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Re: Loud continuous clicking - no start

Postby safetymatch » Wed Sep 12, 2018 8:25 pm

It's the AMPs that provide the power not the volts.
Marble White NC1 Icon.
Vented bonnet.
Quad tipped exhaust.
Stebel horn.
More cosmetic bits than you can shake a stick at.
And yes it is a Sunday car.
chadz
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Re: Loud continuous clicking - no start

Postby chadz » Wed Sep 12, 2018 9:56 pm

Yes, understand that but with a cell down the volts should also be depleted. 14+ volts is a sign of a fully charged battery regardless.

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Re: Loud continuous clicking - no start

Postby Mazda Mender » Wed Sep 12, 2018 10:37 pm

Did you test while she was running ? As that sounds like a charge rate from an alternator pushing what it should but the battery is not holding it.
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
MK 2.1/4 Blue V.S Roadster 1.8 99 ...being rebuilt

http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/

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