Reply With QuoteThis should be ok to do are all the plugs the same and will it wire up the same if so id be putting it in and trying it at least and then run the usual checks of output and such and if all is good run with it
Fossicker
Subscriber
Urgent Question re: alternators
How important is it that the right alternator be used for the VIN of your Disco.
I have a 1997 300TDI. I bought an alternator for "a 1997 Discovery 300TDI" which turned out to be an AMR4248. When I (finally) got the dead alternator out, it was an AMR5245. Now, they look identical. Both are 100amps, both have the same sized pulley, the mounts are the same.
I checked MicroCat, and it said that for my VIN I should be using an AMR5245. Does it really matter? I'm without a car at the moment (as the car is without an alternator) and I'd really like to just drop the part I have in rather than go another few days without it, but I don't want to break anything.
I'd be grateful for any advice.
This should be ok to do are all the plugs the same and will it wire up the same if so id be putting it in and trying it at least and then run the usual checks of output and such and if all is good run with it
Fossicker
SubscriberAl the plugs are the same, in fact, if it wasnt for minor case difference, you'd think they were identical
Swaggie
Scouter, it is more than likely to do with superceded numbers rather than unsuitable alternators. I haven't seen any reason why, apart from pulley diameter changes early(up to 1996) and late(1996 on), that there is any operating differences between 300Tdi Disco alternators.
As long as the plugs are connected the same etc go for it
JC
The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
Fossicker
SubscriberI was wrong, there is a slight difference. there is a pickup on the "W" terminal on the old one thats not there on the new one. Fortunately it look like I can swap them overOriginally Posted by justinc
Scouter, it is more than likely to do with superceded numbers rather than unsuitable alternators. I haven't seen any reason why, apart from pulley diameter changes early(up to 1996) and late(1996 on), that there is any operating differences between 300Tdi Disco alternators.
As long as the plugs are connected the same etc go for it
JC
Swaggie
Buy pick up you mean a different type of plug/ connector?
Both those Alts have 'W' terminals, which are the Tachometer signal.
JC
The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
Fossicker
Subscriber
thats the one. On the dead alternator, there's slide-on connector that fits over the threaded terminal. I can pull that off the dead one and put it on the new one. its not a perfect fit, but close enough for an electrical connection
AT REST
Get a spade fitting that fits the new alternator and crimp it on to the wire that has the old fitting, should be able to get one at any Auto parts/leccy, Regards Frank.
Fossicker
Subscriber Drive belt tensioner pulley
Ok, I've got the alternator on. My only problem now is that I can't raise the drive belt tensioner pulley to get the belt back on. I try and turn the pulley retaining bolt like the manual says, but the bolt just undoes.
Any ideas?
Fossicker
SubscriberGot the belt back on. Its easy from here
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