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- Jul 18, 2011
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- 17,729
My 1969 Mercury 7.5 started puking oil today. (I use it for my dinghy) So, I took it back to the house and took off the lower unit and started disassembling stuff. . .
It looks like the drive shaft has become pitted in the area of the drive shaft seal, so oil was escaping up into the water pump. (Drive shaft is Mercury Part # 45-39078)
Of course the drive shaft for these things are "NLA" . . . . I am wondering what the options may be to rework the driveshaft so that it once again forms a nice seal :noidea: . . . or perhaps fabrication of a new drive shaft :noidea: Maybe JB weld or something to make a new surface . . .
There are one or two of these things available on eBay . . . but they appear to be used or of unknown identify, so not sure if it is the correct part.
I just wanted to see what advice some of the vintage mercury experts may have for this situation.
TIA
It looks like the drive shaft has become pitted in the area of the drive shaft seal, so oil was escaping up into the water pump. (Drive shaft is Mercury Part # 45-39078)
Of course the drive shaft for these things are "NLA" . . . . I am wondering what the options may be to rework the driveshaft so that it once again forms a nice seal :noidea: . . . or perhaps fabrication of a new drive shaft :noidea: Maybe JB weld or something to make a new surface . . .
There are one or two of these things available on eBay . . . but they appear to be used or of unknown identify, so not sure if it is the correct part.
I just wanted to see what advice some of the vintage mercury experts may have for this situation.
TIA