Hello All
I'm thinking about buying a older RX7, maybe an 83,84,85 model and wonder if anyone has had any dealings with them or can give me advice about them. I know the models changed in 85 onwards and is it a much better car than the series than the previous years?
I also know that the engines can have problems in over heated but in terms of cost to run and relaibility anyone reccomend a particular model and so forth?
Thanks
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RX7 buyer's guide in Google returns www.btinternet.com/~guardian.tm/rx7club/guide.html at the top of the list, and a bit further down, the RX7 pages of MazdaWorld at forums.mazdaworld.org/index.php?showforum=39
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I have rebuilt a number of rotary engines in the past (12A/B and 13A/B series). A major problem is that the engine runs with drastic temperature gradients (i.e. the intake quadrant is cool but the area around the plugs is hot). The alloy housings can over-expand in this area and 'crush' themselves against the steel intermediate housings. When the engine cools and the alloy contracts you get a water leak (sort of the equivalent of a head-gasket leak).
They are not a difficult engine to rebuild, but parts are expensive. Mazda say that there are only three moving parts - but in reality there are dozens of individual seal pieces to wear and it can all add up to a big bill!
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