SOHC.co.uk Forums > CB500/550

stator overheating

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McCabe-Thiele (Ted):
As regards the casing getting hot it is going to be hot with an air cooled engine so I assume you mean super hot.

In my experience (mostly based on cars) many owners continue to use vehicles with a poor battery as long as it starts in the summer relying sometimes on jump starts to get through the next winter. They often then find that when they finally replace the battery the alternator fails shortly afterwards leaving them to think it was the alternator in the first place.
I have found that's false economy as a poor battery will put pressure on the charging system so it's working extra hard at charging to just keep you going.

I regularly check the voltage of the batteries on all my vehicles plus I still use my CTEK to avoid the dreaded sulphation effect. My neighbour thinks I'm mad charging up the battery on my Jeep every six weeks or so in the winter - then he wonders why the battery in his Merc failed after only 4 years.

Brian Cairns:
Hi, Its a new battery but doesn't mean its snookered, will check it out.

Cheers

Brian

Oddjob:
I'm wondering if the heat is actually caused by friction. Few reports lately where the rotor casing wasn't fitted with the 2 dowels that locate it properly, this caused the casing to sit a little skew and that caused the rotor itself to start to catch on the stator and the field coils. Any sign of rubbing on those? Also make sure the dowels are in place. If they are missing when you look, unless you know they are meant to be there you'd not know they were missing.

Brian Cairns:
Thanks....this advice is fantastic. I will check all comments out.


Brian

gary123:

--- Quote from: Oddjob on August 30, 2023, 02:34:46 PM ---I'm wondering if the heat is actually caused by friction. Few reports lately where the rotor casing wasn't fitted with the 2 dowels that locate it properly, this caused the casing to sit a little skew and that caused the rotor itself to start to catch on the stator and the field coils. Any sign of rubbing on those? Also make sure the dowels are in place. If they are missing when you look, unless you know they are meant to be there you'd not know they were missing.

--- End quote ---

This is exactly what happened to mine, you MUST have both dowels fitted.

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