Replacing Engine and Jet pump Anodes

[Geoff Cooper]

I will be checking these . do you have to replace or can you just clean them

Take a good look at them and if you consider them to be ok then clean them and put them back with some silicon, if you look at the ones i took out of my engine they only wanted cleaning yet the ones on the jet pumps needed replacing, This is one of the reasons you need to give your engine a good flushing after use, I always flush to the maximum and you can see what mine where like after 10 years of saltwater i didn't need to replace them.

 

[Scott griffith]

What kind of silicone do you use to seal it up and do you have to

 

[Scott griffith]

Took mine out today they looked pretty good not sure if the previous owner had ever changed them or not but there was very little stuff I had to clean off but I do believe to boat was used alot in fresh and brackish before I bought it and we try to run in some fresh water at least once a month

 

[Marvin willis]

I had a friend bring me a set of Anodes back from the states as getting them here in Thailand is just about impossible, I had noticed there was some confusion on where to locate the Anodes on the side of the Engine block so i thought i would try to make it a bit clearer with a few Photos also just to help thing's along, It's a fairly easy job if you lay on top of each Airfilter and bring your right arm around the back of the engine to help support the socket wrench, Mine came out very easy after undoing the 12 mil securing bolt with a small socket i found i could just twist the anode body out of the cylinder block easily.

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Engine Anode and part number you need 2

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Anode housing seal you need 2

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Anode for the side of the jet Pump you need 2

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To locate this Anode it's on the left side of the Engine block as you open the Engine cover just behind and underneath the last fuel injector, If you lay on top of the Airfilter you will see it clearly a small 12 mil socket is all you need

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This is what you will see, Undo the larger 12 mil bolt as the smaller one actually holds the Anode in place in the housing.

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Ok this is both Anodes out, I was really surprised as i have never changed them and this is after 10 years in saltwater, It just goes to show what a good flushing does.

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I just give them a clean and also cleaned the seals and applied some silicon and put them back.

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All refitted and back in place, It took about 5 minutes on each Engine so a simple job that you can tackle yourself.

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Jet pump Anodes and part number you need 2

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You can see how much the saltwater has attacked these Jetpump Anodes compared with the new ones, Not bad though for 10 years use in Saltwater

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All finished and ready to go, I used a longer bolt in the Jet pump Anodes as the one that comes standard i feel isn't long enough and only goes in about 4 threads and steel to Alloy and only 4 threads is just asking for trouble as it's so easy to over tighten anyway good luck i hope this helps you to locate the Engine Anodes better.

Has your jet pump been painted. It looks beautiful. The original owner had painted mine black. Had to get rid of that. Never thought mine looked bad til now

 

[Geoff Cooper]

What kind of silicone do you use to seal it up and do you have to

I just used a silicon that is recommended for gaskets, I use the same silicon on the jet pumps when i take them out for the annual clean and check over, Most DIY places will stock it.

 

[Geoff Cooper]

Has your jet pump been painted. It looks beautiful. The original owner had painted mine black. Had to get rid of that. Never thought mine looked bad til now

I take my Jet pumps out every year just to give them a check over and if i feel they need painting i do it, Just use a tin of primer and some grey spray paint from the DIY, It's the preparation that is the important part, The better you prepare the better the final job looks, I use my boat in saltwater all the time and it's out at least twice a week so every year it gets a good sorting i take the jetpumps out and give them a good once over clean paint and service.

 

[Bruce]

I just used a silicon that is recommended for gaskets, I use the same silicon on the jet pumps when i take them out for the annual clean and check over, Most DIY places will stock it.

I believe most will refer to it as RTV.

 

[Geoff Cooper]

Took mine out today they looked pretty good not sure if the previous owner had ever changed them or not but there was very little stuff I had to clean off but I do believe to boat was used alot in fresh and brackish before I bought it and we try to run in some fresh water at least once a month

I use my Boat a lot probably far more than most people as i live on the beach in Thailand so I'm always messing around with it and any jobs that need doing are done, I probably use it at least twice a week and leave it in the water for a couple of days at a time so it gets it's use but it's well looked after, There's no closed season here it gets used all year around.

 

[Marvin willis]

I use mine 99% of the time in salt water. I didn't realize the jet pumps weren't supposed to be black til I went to a lake and there must have been something in the water bc by day 3 my pumps were silver.

 

[Kelso]

Great write up. Very much appreciated!

 

[rkim808]

I use mine 99% of the time in salt water. I didn't realize the jet pumps weren't supposed to be black til I went to a lake and there must have been something in the water bc by day 3 my pumps were silver.

What happened, did u paint them and paint got eaten off? I will be using mines in saltwater most of the time too, so just curious what happened to urs.

 

[benny]

I am having the hardest time getting these out....I got the 12mm bolts out but the anodes wont budge...any recommendations?

 

[Doncore3000]

I am having the hardest time getting these out....I got the 12mm bolts out but the anodes wont budge...any recommendations?

Did you try tapping on it with a hammer? If that doesn't work, get a Bigger hammer! LOL!

 

[dlkhmk]

Reviving old thread. Anyone have tips for removing an engine anode that is struck? The 12mm bolt comes out fine but the anode seems stuck. Won't turn or pull out. Don't want to do any damage trying to replace it.

 

[Bruce]

Reviving old thread. Anyone have tips for removing an engine anode that is struck? The 12mm bolt comes out fine but the anode seems stuck. Won't turn or pull out. Don't want to do any damage trying to replace it.

I believe the answer is to rotate it to break whatever seal is holding it in place.

 

[84rzv500r]

my 2004 AR210 uses F0K-U7697-00-00 which are off the shelf Martyr CMR-1 Zinc anodes $3.98 on line, $5 locally and $13 from Yamaha on the jet drives and
ANODE CRANKCASE 67F-11325-01-00 in the MR-1's this anode is mil a-18001K zinc alloy and used in nearly every Yamaha four stroke outboard ever made F75-F350 down here in the Keys I think Walgreens and Home Depot stock them LOL

I dont leave the boat in the water they last 12-18 months with daily usage on the jet drives... the engine ones have not had an inspection cycle yet...

I lube the nozzles steering and shifter cables once a week with water proof grease and once a year with 80W-90 injection...

BTW when you see F0K- in the part number is a good chance the Yamaha boys in Tennessee sourced it from the US market.. and boats.net has the picture on file...