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Post by Clinton Cool on May 5, 2017 19:30:00 GMT
I'm in the process of painting my engine hole. I've noticed that the drainage channels in the cruiser deck are in a pretty bad state. Rusts abounds, to such an extent that I can hack big lumps of it out with a scraper.
What's the consensus, should I just ignore this or should I do something about it? If I deal with it, what would be the best way?
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Post by Deleted on May 5, 2017 19:43:31 GMT
I'd scrape and chisel all the loose rust out and try to clear the channels regularly. Might be worth putting hammerite on but I am a bit of a paint sceptic so would not personally do that as I think it would be very difficult to get it clean enough. Regular scraping out is sensible as a maintenance task specially if under trees, or a cover of some sort over the deck.
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Post by JohnV on May 5, 2017 19:44:42 GMT
Do it ....... if you ignore jobs on a boat, they are guaranteed to come back and bite you on the bum
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Post by kris on May 5, 2017 20:53:07 GMT
Do it ....... if you ignore jobs on a boat, they are guaranteed to come back and bite you on the bum i think that's about the best bit of advice a boat owner could have. The only thing I'd add is that it will bite you on the bum at the most inopurtune time. |
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Post by patty on May 6, 2017 6:08:47 GMT
Do it ....... if you ignore jobs on a boat, they are guaranteed to come back and bite you on the bum Those few words one could apply to life..if u ignore stuff that needs addressing it will come back n bite u on the bum.... I think those words are destined for greatness...... I'll use them as my mantra..... thank you John....now where's my list...... |
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Post by phil70 on May 6, 2017 7:33:58 GMT
I thought this was a thread about the Middle Levels
Phil
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Post by naughtyfox on May 6, 2017 10:55:27 GMT
This is one of our scupper tubes. The other one is in better shape. I have asked our current marina if their mechanic would like to cut both away and weld new ones in. It can't be a very hard job - can it? I know that for welding the batteries cables should be disconnected - but can welding be done whilst the boat sits in the water? The tube in the photos: I wrapped Jesus tape (duct tape - but we call it Jesus tape because it performs miracles) around it and it will probably last another 2 years, but I'd like to get both done asap. goo.gl/photos/t8DgZCX63UgDu18Y7 |
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Post by tonyqj on May 6, 2017 11:01:56 GMT
Yes, welding can be done with the boat in the water. There are also very good arguments for not bothering to remove the battery cables but doing so probably won't harm anything.
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Post by Saltysplash on May 6, 2017 14:49:24 GMT
A chap who used to work for highline, and now works for RCR did some steel work for us and he always disconnected the alternator but not the battey terminals
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Post by naughtyfox on May 6, 2017 16:34:31 GMT
A quick look on the 'Net shows:
"I've seen me mate (a pro car builder) clamping one of them alternator protector thingies on cars before he welds 'em and as he shares his workshop with a guy who rebuilds alternators and starter motors, I'm pretty sure if anyone is gonna know it'll be them two and he still won't weld a car without it on there or the electrics disconnected. I guess it only has to happen once on a customer's car and all your profit could be gone."
"The idea is to protect the alternator from any stray currents running through it and frying the diodes/rectifier pack.
Well, that's my understanding of it anyways, and i still won't weld a car/van/boat/woteva after 20 years, with it connected !"
"In my opinion (as an Automotive electronic engineer!), you're probably better off leaving the battery on than removing it. At least any stray current that finds its way into the system has somewhere to go (Dumped in the battery) and the voltage will stay at 12 or so volts, whereas without the battery acting as a current sink, the alternator would bear the brunt of it.
Unless you are welding within a few inches of earthing points, I wouldn't worry either way, especially not about the alternator. It contains diodes, which can be killed by voltage spikes, but an ECU would be killed long before!
One possibility is the resistance of the shell causing a difference in potential between the welding point and the ground clamp. Depending on the topology of it, this could increase or decrease the effective voltage seen by the alternator. You'd have to be welding somewhere between the engine earth strap and the battery earth for this to happen though, and on about 90% of cars these are either on the same bolt or through the same wire."
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Post by Deleted on May 6, 2017 17:56:45 GMT
I thought this was a thread about the Middle Levels Phil So did I. Imagine my disappointment to see it's about crusty bits of channel  |
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Post by Deleted on May 6, 2017 18:01:28 GMT
As for welding.
Disconnect nothing (correct option) or disconnect absolutely every possible work return (not earth..) To include exhaust, control cables, stop cable, domestic circuits. Prop shaft (if no flexible coupling) and so on and so on.
In the real world, nail it together, go for a beer and forget about it 👍
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