davelr4x4 Posted October 2, 2008 Share Posted October 2, 2008 Hi, it seems that 5 times through the Mud Run at Abingdon has trashed my alternator. I suspect it will be full of mud and grit. There's no charge to the battery. I've checked all the connections and all seems OK. Anyway because I have spots on the roofbar and lots of electrickery going on inside I have been meaning to uprate the standard alternator anyway so a swapout is not a problem. Any advice on what power ratings are available that will fit on my 200TDi and the best (i.e. cheapest) place to get them? Scrappy or new? Regards, Dave. Quote Link to comment Share on other sites More sharing options...
roybatty666 Posted October 2, 2008 Share Posted October 2, 2008 try squirting a hose into it with the engine running to clean it out to see if that helps Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted October 2, 2008 Share Posted October 2, 2008 If you have an 45A A127 style alternator you can easily upgrade to 65A. you will need to upgrade the wiring from the alternator to the starter motor though. It's possible to go to 100A, though you are reaching the limits of a single Vee belt at that sort of size. Typically, sand/mud problems can be solved easily, if caught in time, by removing and stripping the alternator for a clean, paying particular attention to the brushes and slip rings. Quote Link to comment Share on other sites More sharing options...
Guest diesel_jim Posted October 2, 2008 Share Posted October 2, 2008 Hi, it seems that 5 times through the Mud Run at Abingdon has trashed my alternator. I suspect it will be full of mud and grit. Hmmm.... maybe next time you could watch the other people go though? seriously though, any similar shaped alternator can be made to fit, go for the biggest amperage. Ford granada type ones are usually around 120amps, which is good. When i was younger (like 18~20) i'd always do the camel trophey type puddle crossings, bonnet deep water, eventhough there was a perfectly good track next to it. on my 200Tdi i had 13, yes, thirteen starter motors on it, and numerous alternators,bearings,UJ's etc. after a while, i started driving with some more mechanical sympathy, and hey presto.... the troubles stopped! (well, slowed down at least) Quote Link to comment Share on other sites More sharing options...
welshdragon Posted October 2, 2008 Share Posted October 2, 2008 Hi Dave You could up grade to 100amp no problem watch the wirring though, i've had 100amp magneti-marelli on my challenge 90 for years (10) with no problem in charging with a single v belt, i also have just fitted a 150 amp bosch alternator (which i got from a local breakers and cost 35 quid )to charge the twin winch batterys only and that is on a single belt too, had no problems as yet. Quote Link to comment Share on other sites More sharing options...
stevieb Posted October 2, 2008 Share Posted October 2, 2008 Hi, it seems that 5 times through the Mud Run at Abingdon has trashed my alternator. I suspect it will be full of mud and grit. There's no charge to the battery. I've checked all the connections and all seems OK. Anyway because I have spots on the roofbar and lots of electrickery going on inside I have been meaning to uprate the standard alternator anyway so a swapout is not a problem. Any advice on what power ratings are available that will fit on my 200TDi and the best (i.e. cheapest) place to get them? Scrappy or new?Regards, Dave. hi,if you change your alternator,befor you go off road try a spray(I will try to find ouy the name)which is like an electrical componant waterproofer.When i saw the demo ,the guy got a new 240 volt drill,standard off the shelf ,put on some spray and droped it into a bucket of water pulled it out and turned it on ....it workde fine.It was available from C.E.F City Electrical Factors.Regards and good luck ,Steve Quote Link to comment Share on other sites More sharing options...
davelr4x4 Posted October 3, 2008 Author Share Posted October 3, 2008 Many thanks for all the advice guys. Seems I've a trip to the scrappy coming up to forage for alternators. Are they reasonably interchangable? Cheers, Dave. Quote Link to comment Share on other sites More sharing options...
draper40 Posted October 4, 2008 Share Posted October 4, 2008 Dave, I'm selling one from a disco here. Pete Quote Link to comment Share on other sites More sharing options...
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