driver0606
Well-Known Member
Ther are some very atractively priced engine pencil anodes on e bay, often Chinese made from American supppliers. Does anybody know if they do the job OK?
Zinc Aodes - quality?
- Thread starter driver0606
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Spi D
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If they comply with MIL codes at least the content should be standardized
http://www.cc-marine.co.uk/Anodes/Anode_Mil_Spec/anode_mil_spec.html
Byond that the performance of anodes vary a lot depending on how/when/where you use them. A bit like antifouling, actually.
I've had great results on longevity by fitting a galvanic isolator ("zink saver").
Sleveral available, I went for a Sterling (not connected, just happy customer ec.)
http://www.cc-marine.co.uk/Anodes/Anode_Mil_Spec/anode_mil_spec.html
Byond that the performance of anodes vary a lot depending on how/when/where you use them. A bit like antifouling, actually.
I've had great results on longevity by fitting a galvanic isolator ("zink saver").
Sleveral available, I went for a Sterling (not connected, just happy customer ec.)
CLB
Well-Known Member
With anodes, quality is everything. I will happily fit an unbranded or aftermarket filter or drive belt to my engine but I buy anodes from a reputable source. Don't have to be branded by your engine manufacturer, but someone like MG Duff I would hope only source anodes of the right quality. The risks to me are too great to worry about saving a few quid. My experience of attractively priced Chinese products, and I have bought plenty of them, is that you usually get what you pay for.
Sailorsam101
Well-Known Member
Be very careful of buying from ebay. I ride motorbikes and there is a serious issue with fake chains at the moment on ebay. They look like the real thing, are the same price but last only 25% of the time.
If buying something form ebay that is critical such as an anode i would make sure i go to a known trusted supplier or importer.
But for a few £'s is it worth the risk?
If buying something form ebay that is critical such as an anode i would make sure i go to a known trusted supplier or importer.
But for a few £'s is it worth the risk?
omega2
Well-Known Member
Agree got a "HONDA" regulator for a tenner, from ebay. £10, as opposed to £60/70 from Honda cooked it in 3 days. Get proper stuff especially if they are looking after your engine £15,000 worth?
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Baseplate
Active Member
Momac
Well-Known Member
driver0606
Well-Known Member
Thanks everybody. Points taken.
superheat6k
Well-Known Member
I buy the zinc bar from a seller at boat jumbles, then drill and tap the end to fit the plug. If it fizzes over a few months it is working just fine. Works out about £3 per anode.
Such serious concern for such a simple and should be non expensive component ! Engines do not dissolve overnight because of a Chinese anode. Better a Chinese anode than no anode, and hardly a motor bike chain, a concern I can understand.
Such serious concern for such a simple and should be non expensive component ! Engines do not dissolve overnight because of a Chinese anode. Better a Chinese anode than no anode, and hardly a motor bike chain, a concern I can understand.
rafiki_
Well-Known Member
I buy from www.boatzincs.com in the USA.
VicS
Well-Known Member
As stated they must comply with one of the relevant standards.
Zinc anodes, for example, must have a very low iron content or they will be ineffective. The figure quoted is the maximum allowable and that is only tolerated if they contain a small amount of cadmium.
If you buy zinc bar to make your own be sure that that it complies with the relevant standard.
The fact that they are consumed over a period of several months is not necessarily an indication that they are being effective.
If they visibly "fizz" I would suspect some problem with the boat's electrical system causing electrolysis.
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Tradewinds
Well-Known Member
I have just been informed, by someone who works in a local boatyard, that the 2 MG Duff anodes they've just bought in had 'Made in China' stickers on them.
I'm sure they'll be well up to spec and do the job - but it seems you can't escape the general migration to Chinese sourced products by many UK companies.
I'm sure they'll be well up to spec and do the job - but it seems you can't escape the general migration to Chinese sourced products by many UK companies.
CLB
Well-Known Member
The Chinese are perfectly able to make top quality products, but, and it's a big one, they are also very good at making utterly awful carp. The key is supervision, specification and quality control. I would guess that mg duff has these in place. If you buy direct, or from a third party who has bought direct, you have none of these safeguards.