Rusty Nuts Garage Posted March 21, 2019 Share Posted March 21, 2019 Anyone had any experience in protecting the alternator from water ingress? Link to comment Share on other sites More sharing options...
Jim 123 Posted March 21, 2019 Share Posted March 21, 2019 On the road or static? Link to comment Share on other sites More sharing options...
Rusty Nuts Garage Posted March 22, 2019 Author Share Posted March 22, 2019 Both - I went through a huge deep puddle, water everywhere. On inspection, the alternator is corroded inside. I was thinking of taping the underside of the bonnet vents, above the alternator, maybe six of them. Maybe devise some sort of splash guard also. Link to comment Share on other sites More sharing options...
tangomikeromeo Posted March 22, 2019 Share Posted March 22, 2019 Is the alternator still working? i.e. Is this a cosmetic exercise or a necessity? If the latter I’d suspect something other than the occasional soaking as TADTS given location. Link to comment Share on other sites More sharing options...
David Brown Posted March 22, 2019 Share Posted March 22, 2019 Alternators in tin tops aren’t waterproofed why should a 7 be any different? Link to comment Share on other sites More sharing options...
Stridey Posted March 22, 2019 Share Posted March 22, 2019 I do recommend at least covering the rear wire plug area. My 7 cut out suddenly a few times and work out it was a short at the alternator end. I bought a plug/cover. Your alternator should have a spring clip to clip the plug in, if not you can get these for pennies. As for waterproofing the alternator, I’ll be interested too, It is vulnerable down there. Link to comment Share on other sites More sharing options...
Bricol Posted March 22, 2019 Share Posted March 22, 2019 My standard rover one (which if a remember correctly doesn't have the lucas style plug above) has so far survived numerous dunkings (back road commute floods well), being drenched on European motorways, deluged in snow and slush, and being left to sit outside for most of the year for the last 18yrs . . . I wouldn't bother ;) Link to comment Share on other sites More sharing options...
Area Representative Piers300 Posted March 23, 2019 Area Representative Share Posted March 23, 2019 The alternator windings are double dipped in a protective solution when being made. It is important that the alternator gets sufficient cooling air, so restricting air flow would in my opinion not be good. The windings do get hot when the alternator is working so it will dry out. The thing to avoid is salty water or even a saline environment, as this is corrosive and will attack the windings over a period of time and gradually reduce the resistance. Personally I would just leave it alone and standard.Piers Link to comment Share on other sites More sharing options...
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