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hendy
Falcone Joined: 07 Aug 2017 Location: Fife Status: Offline Points: 95 |
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Posted: 07 Sep 2017 at 18:43 |
Sorry to raise an old chestnut, but my 2013 Stelvio has developed the 'click no crank' problem. About half the time. I've read the lengthy FAQ on this but it's a bit confusing. Has anyone fixed this on a late model Stelvio? Is it primarily bad connections, or is a bypass wire essential?
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johnno
Senior Member Joined: 19 Jul 2014 Location: loughborough uk Status: Offline Points: 5582 |
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First thing check terminals are tight , second check battery is good by volt metre
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1100 sport corsa , Yam R1, guzzi 650tt rider
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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The late model Stelvio has two start relays, but one yellow wire feeding both. It's this yellow wire which is replaced by a direct feed from the battery, ensuring that both relays are still fed by this wire. Yes it has been applied to late model Stelvios.
As said above, check battery volts with a meter (don't rely on the dash information). When running, the battery volts should be a minimum of 14v. If considerably lower than this then the battery will never be fully charged and the click no crank issue can arise. There has been an issue on this model with the wire terminal on the back of the alternator not being crimped properly, causing low charging. See the other thread on Alternator wiring.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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hendy
Falcone Joined: 07 Aug 2017 Location: Fife Status: Offline Points: 95 |
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Thanks for this information. This should be enough to get me started with a voltage check and all relevant connections.
You'd think they would have cured this by now. |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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It's only been going on since 1980 to my knowledge (others might be able to confirm earlier instances) so don't expect miracles.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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hendy
Falcone Joined: 07 Aug 2017 Location: Fife Status: Offline Points: 95 |
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Battery charging seems fine - 14.2V
There are no yellow wires entering the start up relay. There is a thicker orange/green wire. I assume that the heavier wires are the ones that feed the starter solenoid. I can confirm this with a meter. What is the purpose of the starter maintenance relay? The bike starts with this relay removed. |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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I have no idea, weird Italian logic.
The only wiring diagram I know of is for the earlier version which shows a yellow wire, same as all the other CARC bikes. http://www.thisoldtractor.com/guzzi007/schematics/2008_Stelvio.gif
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Ken-Guzzibear
Moderator Group Joined: 13 May 2014 Location: Sileby Leics Status: Offline Points: 9454 |
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the click no start was an issue on my 76 bike Bri' as in many other manufacturers the "designer" will not alter his/her logic .....
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The Older i Get, The Better I Was
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hendy
Falcone Joined: 07 Aug 2017 Location: Fife Status: Offline Points: 95 |
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Just a follow-up to this.
I carried out the mod to the relay but no improvement. Battery voltage at 12.7V off charge. Cranking voltage about 10.7 V All connections are good and when the cranking occurs it is fast and starts the bike easily. Holding the button in on 'no crank' blows the fuse, which implies that the solenoid is not fully engaging and therefore the pull-in coil is still energised. After a few seconds with the hold coil still engaged the engine starts to crank and then starts. Of course it won't start again, because the 15A fuse is now blown. This all leads me to think that the solenoid is getting "tired". I stripped it and lubricated it, and it looks OK. So it looks like a new starter motor will be required. I never could work out what the Starter Maintenance Relay actually does. Maybe the dealer's diagnostic tools use it to crank the engine over? |
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