Old alternator

[Johnny5]

Recently my amp gauge stoped working I then checked the voltage at the battery
With the engine off I get a reading of 12.4 volts and with the engine running I get 12.2 volts
So I'm assuming the alternator is shot
After looking online I'm having trouble finding a replacement for my current prestolite ALK 6207 5A
Has anyone any knowledge regarding a good alternative ?
The boat is only a small cabin cruiser with a ford anglia engine so I'm assuming as long as the mountings match it will be ok ?
Any help would be appreciated

 

[VicS]

Recently my amp gauge stoped working I then checked the voltage at the battery
With the engine off I get a reading of 12.4 volts and with the engine running I get 12.2 volts
So I'm assuming the alternator is shot
After looking online I'm having trouble finding a replacement for my current prestolite ALK 6207 5A
Has anyone any knowledge regarding a good alternative ?
The boat is only a small cabin cruiser with a ford anglia engine so I'm assuming as long as the mountings match it will be ok ?
Any help would be appreciated

Certainly not working!
Why not take it r to a good automobile electrician.

They should be able to test and repair however necessary

I see you are in Kent. If anywhere near Tunbridge Wells go to Curd Bros https://www.192.com/atoz/business/t.../22ac6e89fccf21460e47a57282101aebc643fa41/ml/

Not cheap but have a good reputation locally.

Maybe worth ringing first to say what alternator you have. ITYWF that the Anglia originally had a dynamo but conversion possible with a Fiesta ( Mk 1 ??) alternator

 

[solent clown]

a lucas (or clone)17 or 19acr will not be far off the mark for fit, you can spin the body to adjust, and shim out the bolts. if you do a google and find they are about right dimensionally, which they should be as they are back in the day the first modern alternator for many old Brit things, then the cheapest way to buy may be by a classic trsctor site like David Brown. Ypu shoulf if you hunt about find a brand new one for under £30

 

[William_H]

As said far easier to fix the old alternator. Typical failure point is the slip rings and brushes. These can be checked fairly easily by you. Mounted onm the end away from the pulley possibly under 2 screws often with regulator built in. The slip rings are copper or brass and should be clean not too pitted or black. Assuming bearings seem OK it should be fine for a long time yet. Alternators are generally very reliable. Indeed first thing you should do is check the external wiring. ol'will