One of the things which could lead to excessive oil usage is apex seal failure which results in elevated clearance between the rotor and housing. This enables inside oil leakage into your combustion chamber causing grey smoke with the exhaust.
via car or truck throttle The first-generation RX-seven was introduced in March of 1978 With all the intention of changing the outdated Savana RX-seven. It had been designed to be an exciting, affordable athletics vehicle and was among only two Wankel-powered autos in Mazda’s arsenal.
Large oil usage within the Mazda RX-seven FD, and some other motor vehicle by using a rotary engine, considering that oil is needed to lubricate the seals. But some thing is wrong when you see abnormal oil use of much more than the proposed one quart each 2500 miles.
The facet seals distribute oil on the apex seals by means of oil channels and forestall compression decline. During the 13B-REW inside the RX-7 FD, they almost never fail, but if they do, failure may be blamed on exactly the same challenges that lead to apex seal failure.
By doing this, you'll be able to pick up any problems throughout startup, for instance really hard begins or Odd noises, which could suggest a number of challenges, for instance reduced compression or a beat starter motor.
Everything in excess of that is definitely more than-boosting and could also produce turbo failure. The stock turbochargers can't deal with too much heat and tension, which causes the housings to crack and leak Raise.
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You could get OEM parts, However they Charge a fortune and they are much less resilient than aftermarket types. The one gain is you benefit from the motor vehicle as a purist and an RX-seven FD with OEM parts that fetch multiple with aftermarket parts.
Utilizing incorrect oil is an additional cause of excessive fuel consumption in Mazda RX-seven FDs. To the 13B-REW, it’s advisable to employ artificial oil which can handle large engine temps and preferably with premix or another helpful additives.
That figure only applies to inventory FDs, and if you have a highly modified RX-seven FD, Examine the recommended oil consumption with your tuner or from house owners pushing the identical numbers.
is the twin-turbo Edition on the 13B engine designed to electric power the third-era RX-7 launched in late 1991. Each individual rotor on 13B-REW has only one combustion chamber quantity of 654cc. With here two rotors, the overall displacement was 1308cc. Best match for your Mazda swap or alternative project.
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They have got triangular-like rotors, nicknamed Doritos, that provide a similar function because the pistons. The rotor is enclosed in the housing leaving a few chambers where air and fuel are first injected, compressed, and ignited given that the rotor rotates on the eccentric travel shaft. The combustion takes place right after ignition and exhaust gases exit the housing through an exhaust port.