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Old 28-03-2015, 13:01   #1
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Yanmar oil filter defect or just bad manufacturing?

New to us catamaran 2gm20 yanmars came with 5 new yanmar filters. I have always used Fram crossovers on my westerbekes and decided To try these, since they came with the boat and are the correct part numbers. Every single one has this blue plastic goop that will flake or fall off if you flick it. I can just imagine what would happen if any of this gets into the bearings. Would you use this in your engine? Or am I better off with a Fram?

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Old 28-03-2015, 17:14   #2
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Re: Yanmar oil filter defect or just bad manufacturing?

Well, that blue "mystery" goop is kinda inexplicable. Some mfg used to prelube the gaskets, but if it's flaky (I'd say, so is the filter) If you can get fleetguards filters you'll never be sorry. However, if your stuck with them, and have to use them, I would do it. The oil comes into the filter from the ring of outside holes if you will, all filtered oil is sent back up the center (spin on htread) portion, meaning that the blue mystery goop would be held in the filter pleats and not make it into the oil system.

Given my drothers, I'd pitch em. Ps, Fram has always been the "low" side of the filter arena.

Best of luck


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Old 07-04-2015, 13:16   #3
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Re: Yanmar oil filter defect or just bad manufacturing?

Pitch em is good advise.
You don't want that crap in the oil passages, or clogging up the oil screen.
That's CHEAP, insurance.

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Old 07-04-2015, 14:22   #4
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Re: Yanmar oil filter defect or just bad manufacturing?

Adhesive?? In any case I would toss.

I have been using the Napa Gold filters on my Yanmar. Seemingly good quality, reasonable price and available almost anywhere in the US. Roughly half the cost of the Yanmar factory filter.

I don't think I would use the cheapest Fram filter, but perhaps their higher quality ones.

I suspect that filters are like oil, anchors, etc. Everyone has an opinion...
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Old 07-04-2015, 14:51   #5
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Re: Yanmar oil filter defect or just bad manufacturing?

It's an almost universal opinion the Fram isn't one of the better ones, the Fleetguard or NAPA Gold are excellent, my favorites based on independent testing is the Mobil 1 and K&N filters
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