[Jon Dor]

Anyone know what causes this please?
This has grown back over the last week or so since I wiped it dowm
Cheers.
Mike.

 

[Jon Dor]

Pic attached this time.

 

[kermit_rr]

Not seen that in a long time
How old is your battery and have all the vent plugs been removed?

 

[Grrrrrr]

Pic attached this time.

Looks like the metal might be reacting with sulphuric acid gas. Is the battery not sealed though?

 

[Jon Dor]

Its a trusty HANKOOK MF31-1000, 5 yrs old, "sealed for life" battery. Had a sniff, but not a whiff of acid smell.
I'm quite puzzled by it. I'll try wrapping it in insulating tape.

 

[Grrrrrr]

Its a trusty HANKOOK MF31-1000, 5 yrs old, "sealed for life" battery. Had a sniff, but not a whiff of acid smell.
I'm quite puzzled by it. I'll try wrapping it in insulating tape.

I wonder if it is sealed still. It is along that edge.

I've got a Platinum battery in mine. 642X?

 

[pwood999]

Do a CCA test. It's probably starting to expire.

 

[kermit_rr]

Its usually gases from the battery that cause it, along with an old battery that doesn't hold its charge anymore.
A sealed battery still has vent holes in it somewhere.. is it in good health, or showing it's 5 years disgracefully?

 

[Datatek]

You have removed the transport plugs at each end I suppose?
Clean it off treat it with washing soda or bicarbonate of soda and paint it. It will rot even faster wrapped in tape.

 

[Jon Dor]

Its usually gases from the battery that cause it, along with an old battery that doesn't hold its charge anymore.
A sealed battery still has vent holes in it somewhere.. is it in good health, or showing it's 5 years disgracefully?

I had been coming out to a non-starting battery every day, then I noticed an internal light was on AND I discovered the +ve terminal wasnt tight. After tightening that up, it's been starting at first attempt every time, except I left parking lights on last night. Can't blame battery for that.

 

[Datatek]

I had been coming out to a non-starting battery every day, then I noticed an internal light was on AND I discovered the +ve terminal wasnt tight. After tightening that up, it's been starting at first attempt every time, except I left parking lights on last night. Can't blame battery for that.

You need to fully charge the battery, it's probably sulphating due to lack of charge.

 

[Jon Dor]

You have removed the transport plugs at each end I suppose?
Clean it off treat it with washing soda or bicarbonate of soda and paint it. It will rot even faster wrapped in tape.

Cheers, Keith. Yes I removed transport plugs when I commissioned it back in November 2016.

 

[Jon Dor]

You need to fully charge the battery, it's probably sulphating due to lack of charge.

Good point, although I've been driving it every day.

 

[Jon Dor]

I changed the alternator recently. When I jump started this morning, it was pushing out 13.7v at tickover.

 

[tomcat59alan]

Good point, although I've been driving it every day.

I find a kettle of hot water poured over the sulphation will sort it.

I changed the alternator recently. When I jump started this morning, it was pushing out 13.7v at tickover.

Did you change the regulator Mike?

 

[Jon Dor]

I find a kettle of hot water poured over the sulphation will sort it.

Did you change the regulator Mike?

Great minds think alike Alan...I've literally boiled a pan and about to do exactly that! No, I didnt change the regulator. The old alternator was putting out jack ****, replacement did the job, until the internal door light - very dim (like me) - was draining it overnight. Where is regulator located Alan?

 

[tomcat59alan]

Great minds think alike Alan...I've literally boiled a pan and about to do exactly that! No, I didnt change the regulator. The old alternator was putting out jack ****, replacement did the job, until the internal door light - very dim (like me) - was draining it overnight. Where is regulator located Alan?

Bolts to the back of the alternator and carries the brushes.if you still have your old one take the black cover off,just some screws and the 13and10 mm nuts from memory.ive got my old one in the garage I can photograph if you're stuck. Really self explanatory when you get the new one. The part number was posted recently.

 

[Jon Dor]

Bolts to the back of the alternator and carries the brushes.if you still have your old one take the black cover off,just some screws and the 13and10 mm nuts from memory.ive got my old one in the garage I can photograph if you're stuck. Really self explanatory when you get the new one. The part number was posted recently.

I do have the old one. I thought I'd refurb it when I'm feeling well enough to have a potter about Alan.

 

[Jon Dor]

THANKS FOR THE EXCELLENT POINTERS & ADVICE GUYS.

 

[kermit_rr]

If you're only getting 13.7 then the battery is probably dragging it down and needs a good overnight charge. A newish alternator should ideally be set to 14.7

Sulphation refers to the internals, not the crust on the outside