USE­FUL CON­TACTS Auto Um­bau Porsche

A Bed­ford­shire clas­sic Porsche spe­cial­ist for a num­ber of years, and steeped in ear­lier 911s. Of­fers sales and ser­vic­ing/re­pairs. Our con­sul­tant for this Buy­ers’ Guide

911 Porsche World - - Buyers’ Guide - By a stone chip.’ Robin’s busi­ness, Auto Um­bau Porsche, has its own re-gal­vanis­ing equip­ment, in­ci­den­tally.

gone down the cheap road and had their wheels di­a­mond cut and lac­quered,’ Robin re­veals. ‘These will de­crease the value of the car as they will not last, be­cause cor­ro­sion will soon at­tack the lac­quer and tar­nish the alu­minium.’


Un­sur­pris­ingly a 930 rusts in the same way as a 911 Car­rera. Check the bot­tom of the door catch plates (or B posts); if you see bub­bling, rust is present. The front wings rust around the head­lamp bowls and at the bot­tom of the front wind­screen. Check the in­ner wings by lift­ing up the boot car­pet.

Look out for ac­ci­dent dam­age. ‘Most 930s will have been to a bodyshop at some point, but there are good and bad re­pairs’ Robin points out. ‘The first thing to es­tab­lish are which pan­els have dif­fer­ent shades. Reds are es­pe­cially bad for this, and the only so­lu­tion is to re-spray the whole car.’

These cars were fac­tory gal­vanised, so stay away from those that have had a bare metal re­spray, is Robin’s ad­vice. ‘If they are sanded to bare metal the zinc layer will have been re­moved, mak­ing them more prone to rust­ing if the paint is bro­ken


Well cared for in­te­ri­ors look good and smell right. ‘The driver’s seat side bol­ster will take the most dam­age, as a re­sult of the driver get­ting in and out,’ Robin ob­serves. ‘There­after, look at the things peo­ple touch the most – the steer­ing wheel, gear knob, door pull han­dles and ped­als.’

The seat bol­sters are also prone to crack­ing if the leather has not been treated over the years. ‘Be aware that some seats have been painted to make them look good for a short while, but ul­ti­mately the paint col­lects dirt much quicker and wears off, mak­ing the seat look worse than ever,’ Robin warns.

Leather dries out – it should be soft and not feel like card­board. The door cards and door pock­ets can suf­fer from wa­ter dam­age, nor­mally caused by shrink­ing win­dow seals and door mem­branes be­ing dam­aged. Head lin­ings de­te­ri­o­rate, es­pe­cially if the car has been smoked in, and re­plac­ing this is ex­pen­sive as it is a win­dows-out job.

Se­cu­rity sys­tems are a nui­sance, Robin feels. ‘The alarm fit­ters are to blame for wreck­ing dash­boards and in­te­ri­ors by drilling holes ev­ery­where to fit LEDS, and re­mov­ing trim and not put­ting it back prop­erly. And most elec­tri­cal prob­lems are caused by poor alarm in­stal­la­tion, where bad sol­der­ing has caused high re­sis­tance or a break in the wiring.’

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