How do you take the salt off the prop?
08-09-2018, 11:15 PM
#21
SORE MEMBER
Platinum Member
Join Date: Apr 2004
Location: 29°50'49.74"N 95° 5'17.55"W.......TEXAS
Posts: 6,989
Likes: 0
Received 1 Like
on
1 Post
I was thinking it was a by product of cavitation, see it on my buddies boat from time to time. We boat the same waters but his boat is very prone to slippage at certain speeds, electrolysis makes sense too
08-10-2018, 07:05 AM
#22
Member #154
Platinum Member
Join Date: Oct 2000
Location: SW CT & Long Island Sound
Posts: 7,879
Received 864 Likes
on
317 Posts
I agree, look at the deposit pattern, if it was "junk" in the water the whole prop would be uniformly coated, as well as your drives and hull. I don't think this is a simple deposit issue, something more complex going on here. But of course, I have no scientific basis for that, just a general observation, maybe a call to a prop expert might turn up something?
08-10-2018, 08:14 AM
#23
Gold Member
Gold Member
I thought cavitation burns were more like 'pitting' on the propellor and normally occur in small areas rather than all over.
(Quick Google found the picture below)
Also, cavitation damage actually burns into the prop and therefore won't clean off. If the op can clean/polish this off, then I don't think its cavitation related.
(Quick Google found the picture below)
Also, cavitation damage actually burns into the prop and therefore won't clean off. If the op can clean/polish this off, then I don't think its cavitation related.
08-10-2018, 10:48 AM
#24
SORE MEMBER
Platinum Member
Join Date: Apr 2004
Location: 29°50'49.74"N 95° 5'17.55"W.......TEXAS
Posts: 6,989
Likes: 0
Received 1 Like
on
1 Post
I thought cavitation burns were more like 'pitting' on the propellor and normally occur in small areas rather than all over.
(Quick Google found the picture below)
Also, cavitation damage actually burns into the prop and therefore won't clean off. If the op can clean/polish this off, then I don't think its cavitation related.
(Quick Google found the picture below)
Also, cavitation damage actually burns into the prop and therefore won't clean off. If the op can clean/polish this off, then I don't think its cavitation related.
08-10-2018, 12:30 PM
#25
*
Platinum Member
I think a simple subject is morphing into some kind of rocket science. It's really dead simple.
Even though you see this in brackish and sometimes fresh water around the waterline it's more a calcium/lime deposit in those situations . The salt water has exacerbated the problem but it's not salt that you see on the prop.
It's to a degree a lime/calcium issue but contributing factor is that the unit has been in the water long enough for the Zinc (ok , aluminum) anodes to start doing their thing and you're seeing deposits on the prop because of this electrolytical action .
As has correctly been pointed out already a light acid bath makes them vanish instantly without any effort . No worries , it's dead common . Been cleaning up this stuff for more than 40 years .
Even though you see this in brackish and sometimes fresh water around the waterline it's more a calcium/lime deposit in those situations . The salt water has exacerbated the problem but it's not salt that you see on the prop.
It's to a degree a lime/calcium issue but contributing factor is that the unit has been in the water long enough for the Zinc (ok , aluminum) anodes to start doing their thing and you're seeing deposits on the prop because of this electrolytical action .
As has correctly been pointed out already a light acid bath makes them vanish instantly without any effort . No worries , it's dead common . Been cleaning up this stuff for more than 40 years .
08-10-2018, 08:09 PM
#28
Registered
I think a simple subject is morphing into some kind of rocket science. It's really dead simple.
Even though you see this in brackish and sometimes fresh water around the waterline it's more a calcium/lime deposit in those situations . The salt water has exacerbated the problem but it's not salt that you see on the prop.
It's to a degree a lime/calcium issue but contributing factor is that the unit has been in the water long enough for the Zinc (ok , aluminum) anodes to start doing their thing and you're seeing deposits on the prop because of this electrolytical action .
As has correctly been pointed out already a light acid bath makes them vanish instantly without any effort . No worries , it's dead common . Been cleaning up this stuff for more than 40 years .
Even though you see this in brackish and sometimes fresh water around the waterline it's more a calcium/lime deposit in those situations . The salt water has exacerbated the problem but it's not salt that you see on the prop.
It's to a degree a lime/calcium issue but contributing factor is that the unit has been in the water long enough for the Zinc (ok , aluminum) anodes to start doing their thing and you're seeing deposits on the prop because of this electrolytical action .
As has correctly been pointed out already a light acid bath makes them vanish instantly without any effort . No worries , it's dead common . Been cleaning up this stuff for more than 40 years .
08-10-2018, 11:49 PM
#29
Platinum Member
Platinum MemberThread Starter
Join Date: Jun 2004
Location: St-Hyacinthe, quebec, canada
Posts: 7,732
Received 372 Likes
on
250 Posts
Guys! Vinegar works!
wednesday night i tried to clean them and did not work
left them in water overnight
thursday morning following your replies, i added vinegar in my water, 30 minutes later i tried to clean them, no difference even witn rag, brush ...
discouraged i left them in that same water overnight thinking friday would be the day!
so i checked late this morning and... brand new props! Just like before! Without even have to work on them!
thanks for your replies!!!
wednesday night i tried to clean them and did not work
left them in water overnight
thursday morning following your replies, i added vinegar in my water, 30 minutes later i tried to clean them, no difference even witn rag, brush ...
discouraged i left them in that same water overnight thinking friday would be the day!
so i checked late this morning and... brand new props! Just like before! Without even have to work on them!
thanks for your replies!!!
08-11-2018, 09:09 AM
#30
Registered
iTrader: (6)
Guys! Vinegar works!
wednesday night i tried to clean them and did not work
left them in water overnight
thursday morning following your replies, i added vinegar in my water, 30 minutes later i tried to clean them, no difference even witn rag, brush ...
discouraged i left them in that same water overnight thinking friday would be the day!
so i checked late this morning and... brand new props! Just like before! Without even have to work on them!
thanks for your replies!!!
wednesday night i tried to clean them and did not work
left them in water overnight
thursday morning following your replies, i added vinegar in my water, 30 minutes later i tried to clean them, no difference even witn rag, brush ...
discouraged i left them in that same water overnight thinking friday would be the day!
so i checked late this morning and... brand new props! Just like before! Without even have to work on them!
thanks for your replies!!!
