I just recently purchased a mazda rx7. The previous owner said the engine and tubo have been rebuilt. It has been sitting for 3 years. What are the fist few steps I should take before starting the car up
Make sure you tune it up well and take your time with it you can all so add a bit of ATF in to the spark plug hole. it help lube yes it going to smoke be it ok.i work on them for a for a living from stock rebuild to full racing.
If it has been sitting for three years you might have problems. if you let a rotary engine sit for too long than you risk dammaging the apex seals that are on the rotor. deffinally change the oil and make sure its good gas. if you have starting problems of horrible fuel or oil consumption you might have dammaged the apex seals and it would need an additional rebuild to replace those parts. also was the engine broken in properly after the rebuild. if not you can doo even more damage to the engine. make sure that for about 600 miles you drive very cafeully at low Rpms. after the 600 miles change the oil again.
P.S. make sure you have no leaks. another huge problem wiht cars that have been sitting but that a whole different set of issues
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Yes I know of someone who specializes in george wankel rotary engines. His name is Doug and his ph.# is 619-646-5109 ask him for mike he is the best. He is a little expensive but if you love your car its worth it.Good luck
its not hard at all. as long as your good with your hands. and know the basics of your rx7. other then that everything bolts in. you just need a turbo driveshaft for sure. or they sell a custom driveshaft on mazdatrix.com so you can keep your N/A differential.
Check the injectors, make sure that they arent corroded aswell, and there is a way to convert vane into Maf but i wouldnt do it since they do the same thing. Just make sure the contacts on the inside of the potentiometer are not obstructed and and smooth. IF it is old then it would be ok to replace it. Check the wiring for any cracks to the vane airflow. Also the fuel pressure regulator check that and see waht the pressure is there with it on and off. That might be bad too.
I tried a Solution used from a previous posting... The automatic transmission fluid, (ATF), trick. After doing everything in the mainianace manual, without a positive outcome... I tried it.. 3 capfulls in each trailing spark plug hole... but it must be after or just after the apex went past the hole... remember turn the shaft manually until the apex passes. Also remember their are six apex seals, 3 on the front rotor and 3 on the back, thats 18 cap fulls total. Don't worry if some drips or pours out after putting it in the spark plug hole. I did it with a med seringin. but be careful the end could break off in the plug hole.(don't ask) Just make sure you do all six just after each apex. Then take both leading plugs off and spray them with starter fluid and put them back just after you spray them. This, I was told, was to make sure the car fires on the first start. IT works..... This is also a trick after having starting problems when the car floods....... That why I waited so long to try it, I did need it for flooding..... This swells up the seal... they got dried out from sitting at least four years... ATF soaks into them and helps the compression...