F150 interior anodes

[Pevbay22]

I am planning a service on my F150xa and one of the items listed on the scheduled maintenance parts list, amongst others, are the 8 X anodes (68T-11325-00-00). Looking at various digrams in manual etc it would appear to me that I would have to remove a gasket or 2, that according to the service manual would need to be replaced. If this is the case I can't quite understand why the gasket (s) don't appear in the scheduled parts list. I am facing this same dilemma with 4 other anodes (63P-11325-01-00). If any kind and knowledgable person could explain what other parts I in fact would need to replace or not in order to replace these anodes I would be very grateful?

[pstephens46]

Before you buy any of these, how many hours on engine?

[fairdeal]

I think the anodes he is asking about are on the back side of the exhaust cover.
AFAIK the "maintenance schedule" refers to them a "accessible with major disassembly"
to be replaced only "during major service procedures"

which I interpret to mean if you are exposing them for some other reason - not just to change the anodes

[Pevbay22]

Thanks for all the responses, yes you are correct Fairdeal, they are the ones behind the exhaust cover. What I find confusing is why they are included in a list of scheduled parts. In one of the service manuals under the maintenance schedule it suggests they should be replaced every 1000 hrs or 5 yrs. In my case I am not quite at 500 hours but my boat has been in the the water for just short of 5 years.

This also applies to the other 4/5 anodes I mentioned which are located in the cylinder block. I am not referring to the anodes as illustrated in Townsend's picture (which I have replaced once previously)

I am beginning to get the impression that it would be completely unnecessary at this stage to bother with these anodes.

[pstephens46]

I think the anodes he is asking about are on the back side of the exhaust cover.
AFAIK the "maintenance schedule" refers to them a "accessible with major disassembly"
to be replaced only "during major service procedures"

which I interpret to mean if you are exposing them for some other reason - not just to change the anodes

Yes. No sense in pulling apart the engine to go hunting the first part number listed by OP. The second part number I would inspect. I bought the anodes and grommets (seals) first. So I went ahead and replaced. Probably didn't need to. Dirty but only slightly "worn". Does the later F150 have four versus three as the pic shows?

If the easily accessible plugs are wrecked then I might consider digging further. Hard to imagine though. I hear other brand motors are very different.

[Pevbay22]

Before you buy any of these, how many hours on engine?

Just short of 500 hours but the boat has been moored up for 5 years

[Pevbay22]

I think the anodes he is asking about are on the back side of the exhaust cover.
AFAIK the "maintenance schedule" refers to them a "accessible with major disassembly"
to be replaced only "during major service procedures"

which I interpret to mean if you are exposing them for some other reason - not just to change the anodes

Yes those are the anodes I am referring too, and no, I was not thinking of any other reason other than to replace the anodes. On reflection I think it would not be wise to do this, even though the service manual suggests they should be after 1000 hrs or 5 years.