N:B a note on lubricating the shaft...
again as said before there are many options for lubrication,
I've used machine oil (151, or similar ) but requires regularly topping up ( practically after every run), and also runs the risk of putting oil in the lake on the first initial run. (seepage)
Its best to fit oilers to the shaft when using oil as a lubricant, as pouring it down a shaft without is very tricky even is using a syringe, oil will just go everywhere!
cost is a couple of quid every few months of regular running when using this product ( if running a steam engine then its a must anyway for the tool box)
My old man uses Castrol marine moly, which is thick and like a brown orange colour, he usually cleans the shafts every couple of months.
I used to use it until i brought my own tub of grease ( the tub was so big how can you not sponge off you dad huh!) so can vouch for its ability's.
that tub was free it was liberated from work in the 70's!
Now I use a similar moly but designed purely for marine applications, i had a shaft that kept leaking so got something thicker but ended up finding it was that good i used it now on everything (it can be white or black) It helps to reduce wear and corrosion as well as providing a very good seal up the shaft as well as also aiding in dissipating heat that can generate at the top of the shaft if i'm running a very fast motor, i tend to only strip out the shafts at the end of a season so far no shafts have needed replacing since swapping to stainless steel ones, but my brass shafts have needed a rub down to removes smaller corrosion marks.
The smaller tubs usually cost around £6-10 ( depending on brand) first tubs still going after the last 6 years.
For anything that runs with a flexi shaft i use a small amount of the marine grease on the ends of the bushings ( again high wear areas reduced) but the main shaft is filled with teflon grease, this is simply due to the stuffing tube having a teflon liner.
Teflon grease is about the same price, but you will chew through more as a flexi shaft Has to be cleaned after every days running or it will rust its only made of mild steel wire cable after all so inserting into water = more maintenance, even more so when running in a salt water environment.
Salt water = shaft hell!! and thast means 'brackish' water too ( that's why now i only use stainless steel shaft and liners!)
I'm sure there are other lubrication that work just as well theses are the ones i use and have had no issues with over the past decade.
I'll be interested to hear others lubrication methods is they wish to share?
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