BUY­ING TIPS

Classic Car Weekly (UK) - - This Week -

SER­VICE HIS­TORY COUNTS

Try to find a car with ser­vice his­tory and long-term own­er­ship be­cause it’s essential that reg­u­lar oil changes have been car­ried out ev­ery 3000 miles or so. The oil lu­bri­cates the ro­tor seals and makes a ma­jor con­tri­bu­tion to en­gine cool­ing. Even in good con­di­tion, the mo­tor can shed some oil, par­tic­u­larly from the crank­shaft oil seals.

COM­PRES­SION OR DE­PRES­SION?

A com­pres­sion test can help to re­veal the true con­di­tion of an en­gine. Poor start­ing on an RX-7 can be down to worn ro­tor tip seals. These can be dif­fi­cult to get hold of and while they can be fit­ted on a DIY ba­sis, it’s best to leave it to a pro­fes­sional, although you’ll pay ac­cord­ingly.

SMOKE AND THE WA­TER

Some white smoke on start-up is noth­ing to worry about but con­stant wa­ter vapour from the ex­haust sug­gests a bro­ken seal on the com­bus­tion cham­ber, which can lead to over­heat­ing and cat­a­strophic en­gine dam­age.

CHECK CARE­FULLY FOR COR­RO­SION

These cars can – and do – rot just about any­where, though the sills, wings, doors and boot are well known weak points. Pay close at­ten­tion to the un­der­neath of the car at the rear, too, and the state of the rear sus­pen­sion mount­ings in par­tic­u­lar.

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