[C320-list] Stuffing box nut replacement?

RONALD HODEL ronandgail2 at me.com
Mon Mar 29 20:14:50 PST 2021


I’m with Doug on this. It’s the least expensive option for starters 
Ron
#1070 Lokomaikai 

Sent from my iPhone

> On Mar 29, 2021, at 1:53 PM, Doug Treff <doug at treff.us> wrote:
> 
> I'll just add my $0.02 here regarding the BFH technique: DON'T DO IT!
> 
> To put all this back together and do a proper alignment, you'll be trying to align the coupling faces within .001" across the face. Do you really want to run the risk of banging on that flange with a hammer if you need to realign it later? Not to mention the danger of bending the prop shaft. 
> 
> Use a puller or hire a professional.
> 
> I agree with Arthur, it could be that the stuffing is keeping the threads from grabbing. How many rows of stuffing did you put in? Maybe consider doing it one row at a time, compressing it with the nut, then add another row.
> 
> I'd bet money that is the issue and not the threads.
> 
> --
> Doug Treff
> doug at treff.us
> 
>> On Mon, Mar 29, 2021, at 3:10 PM, ptormey at 4square.net wrote:
>> Just replacing the "stuff" in the stuffing box and discovered that the
>> packing nut doesn't want to thread back on. 
>> 
>> Boat's on the hard.
>> 
>> It doesn't seem to be damaged and I cleaned it up with a hand wire brush. 
>> 
>> The mating threads are fine as the locking nut goes over easily. 
>> 
>> And no I haven't put a wrench to it (yet).
>> 
>> 
>> 
>> With my handy endoscope I can see that the threads at the start are corroded
>> a little. As I tighten it by hand it starts to grab then 'pops' back
>> 
>> I did use a sharp scribe to chase the threads and it cleaned them up and
>> tracked just fine.
>> 
>> 
>> 
>> So.. It look s like I'm gonna try to mark then unbolt the shaft to engine
>> coupler, remove the flange (soft mallet?) and the keyway and replace the nut
>> IF I can find one. I know I'm be 70% of the way to replace the whole
>> assembly but It's not needed.
>> 
>> 
>> 
>> So before I hit anything with a BFH, who got some advice for me?
>> 
>> Is the shaft coupler that easy to remove?
>> 
>> 
>> 
>> Pat
>> 
>> 
>> 
>> Pat Tormey
>> S/V Blue Skies
>> Newport RI
>> 
>> 
>> 
>> 


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