911 Porsche World - - Practical Porsche -

The Bosch al­ter­na­tor Sid­ma­lik fit­ted came from Euro Car Parts; re­tail cost is to­day around £500 ex­change in­clud­ing VAT, al­though as usual there are var­i­ous al­ter­na­tives in terms of brand and qual­ity, and so on. Best bet is just to ring, with your car’s VIN, and see what’s on of­fer. Note that some cars have al­ter­na­tors with con­ven­tional fixed drive pul­leys, oth­ers with free-wheel de­vices. Re­place with one of the­more re­li­able fixed-hub units if you have the chance. New fromporsche, an al­ter­na­tormight typ­i­cally cost around £526 plus VAT, again ex­change, but some ear­lier units are avail­able only for out­right pur­chase at – wait for it! – £1714.18 plus VAT.

There is one other al­ter­na­tive to these so­lu­tions, of course, and that is to have your ex­ist­ing gen­er­a­tor re­paired and/or over­hauled as re­quired. We spoke to Si­mon Hep­worth at lo­cally well-known auto-elec­tri­cians Rees & Allen in Ayles­bury, Buck­ing­hamshire, and he quoted us around £85 plus VAT for a new reg­u­la­tor (which is the com­po­nent that­most of­ten fails, it seems), with bear­ings and pul­ley and so on at ex­tra cost as re­quired – but all just as af­ford­able. They can also test the al­ter­na­tor (off the car) and/or reg­u­la­tor for just £5 plus VAT, which again could be a big­money-saver.

All of their gen­er­a­tor (and starter­mo­tor) over­haul work comes with a 12-month war­ranty, and they can also deal with com­plex wiring re­pairs, up to and in­clud­ing the­mak­ing and in­stal­la­tion of com­plete new ‘har­nesses’. (The last time this writer was there they were rewiring an As­ton­martin Lagonda – that’s the fe­ro­ciously com­plex 1970s job de­signed by Wil­liamtowns.) Note, how­ever, that you will have to re­move and re­fit the al­ter­na­tor your­self – al­though some other com­pa­niesmight have the fa­cil­i­ties to do this for you. But then you’ve read this story, so why would you need that?

Rees & Allen, should you be in the Ayles­bury area of Buck­ing­hamshire and the Home Coun­ties – and we be­lieve they are well worth trav­el­ling a fewmiles for – can be con­tacted on 01296 483586. Porsche-torque is in Uxbridge, Mid­dle­sex. Call 01895 814446, or go to And our thanks to all con­cerned for their help with this story.

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