I posted a few days ago about a regulator issue, which is still hounding us. Runs fine when cold, then slips into an over-charging mode when warmed up.
Rather than just replace the regulator, I'm thinking it might be worth having the whole alternator rebuilt. Since I'm leaving town for an undeterminend amount of time in the AM, I want to leave the boat in a run-able condition, which leads me to some questions:
Is my assumption that each engine alternator's charge is directed to one battery bank?
If I remove the port alternator, is it actually the port bank I'm removing the charge from?
If I pull the belts, secure and tape off the wires to prevent grounding, are there any other considerations toward leaving the boat in an operational state should she have to be moved?
TIA,
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Thread: Alternator Rebuild
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Alternator Rebuild
Ed G.
Misty
'68 41C
Sanctuary
'80 58 Motoryacht
100 Ton Master, Near Coastal
http://www.boat-heaters.com
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Re: Alternator Rebuild
1. Generally (if OEM), yes.
2. Yes, normally.
3. Nope. And if you have a combiner or AC charger, and its up (e.g. genset running) that bank will get charged. Mechanical Detroits do not reuqire power to run; they will run quite happily with a totally flat battery bank and no DC power whatsoever (this I have taken advantage of when I had a massive short offshore that took out my starboard side electrical several years ago - the engine didn't know what happened, although I had no electrical gauges on that side....)http://www.denninger.net - Home page with blog links and more
http://market-ticker.org - The Market Ticker
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11-10-2008 02:15 PM #3
Re: Alternator Rebuild
Ed is there no auto electric shop in the area? I usually bring it in and have it back in a day. Some newer stuff the have on the shelf waiting for you and they only need to add the pulley.
Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.
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Re: Alternator Rebuild
I'm sure there is, and I'm hunting. Florida Detroit Diesel doesn't stock them but gave me someone to try. If I can get one today, great, but I'm heading out in the morning, and Ang will have to plan to take time off to get the part and then scare up some local help to install it (that sucker's big), hence the planning for some down time before I actually remove it.
Ed G.
Misty
'68 41C
Sanctuary
'80 58 Motoryacht
100 Ton Master, Near Coastal
http://www.boat-heaters.com
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Re: Alternator Rebuild
Belts? My 92 series has the alternator mounted on one of the back accessory gear drives. Maybe you have a different step on Sanctuary, but if not, you will have an open gear drive once you take off the alternator.
Sky Cheney
1985 53EDMY, Hull #CN759, "Rebecca"
ELYC on White Lake--Montague, MI
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Re: Alternator Rebuild
Well, some idiot painted over the ID plates, on both of them...no way to read the numbers off of them that the shop needs to match them up.....
On these engines, they are mounted on the front, with twin belts driving them.Ed G.
Misty
'68 41C
Sanctuary
'80 58 Motoryacht
100 Ton Master, Near Coastal
http://www.boat-heaters.com
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11-10-2008 03:16 PM #7
Re: Alternator Rebuild
I would pull it and run down to a shop. Chances are a good shop can have you going in 2-3 hours.
Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.
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Re: Alternator Rebuild
OK, guess what's not made any longer? 32v rebuild parts for Delco alternators!
We're just going to have to take it in, see if it can be repaired, and if not, buy one of the alternatives.
Fortunately, it's not a difficult job to pull it, and it wasn't as heavy as it looked, so it should be pretty easy to get the new one in.Ed G.
Misty
'68 41C
Sanctuary
'80 58 Motoryacht
100 Ton Master, Near Coastal
http://www.boat-heaters.com
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Re: Alternator Rebuild
Anyone ever heard of Leece Neville Alternators? This, and Dixon were mentioned as alternative suppliers for a replacement.
Ed G.
Misty
'68 41C
Sanctuary
'80 58 Motoryacht
100 Ton Master, Near Coastal
http://www.boat-heaters.com
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