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May 10, 2017, 10:19 AM
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Question

alternator repair


The alternator in my jaguar e-type 4.2 is slightly off. i would like to keep the car completely origional, so i dont want to buy a new alternator. is there a way to fix the alternator without causing damage or replacing parts?

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May 10, 2017, 08:54 PM
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If its not something silly like a slipping belt, then,
usually its a small electrical part failure.
Go to a E-type website and see if there is a common way that these alternators fail.
Check and see the availability of these parts---rectifiers, brushes, diodes, internal regulators, etc.
Fix it yourself, or take it to an autoelectric shop.
Also a possibility exists that the alternator can be rebuilt--looking stock externally-- but have completely revised internals, with higher amp output.
Feb 28, 2018, 04:16 AM
Registered User
There are specialized shops in rebuilding alternators.
Oct 19, 2018, 09:20 AM
Registered User
diode trio or internal regulator are usually what goes out on Lucas alternators.
Mar 20, 2019, 03:13 AM
I think I go fly
pyrobus's Avatar

Check diode bridge


If by slightly off you mean the voltage is like 12.8 instead of 13 to 14 then one of the diodes may have failed


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