AboutMp2 Expertise I prefer to answer questions relating to the Miata since this has been my area of specific
expertise since 1991. I can answer questions relating to the other Mazda models however
some limitation of expertise may reduce my accuracy.
Experience Mazda technician since 1987, shop owner and specialty are regarding the Miata since 1991 covering mechanical, electrical, trim and body. Specializing specifically in drivability concerns.GKHS 1985, BVC 1987, MNA 1989, ASE Master Technician Mechanical 1995, ASE Master Body/Paint/Collision 1996
Education/Credentials GKHS 1985, BVC 1987, MNA 1989, ASE Master Technician Mechanical 1995, ASE Master Body/Paint/Collision 1996
First off, I wish I wasn't in Mass so that I could bring my car to you... I have a newly purchased 99 Miata 10th anniversary. It has 64k miles and a new knocking sound coming from the engine. A trusted mechanic listened to it and diagnosed it as a crankshaft problem within a few seconds. My question for you is, what is my best/cheapest approach to fix my new car? Is a rebuilt engine or used one a better bet, or should I have only the crankshaft on mine replaced? Also, is there a supplier or website you would recommend?
Thank you so much in advance for your help. At this point I am very confused and disappointed. I appreciate any and all help.
Will
Answer Send me your VIN number and I will research the engine issue. Some (about 180, 1999 models) ended up with engines that had the #4 main journals not machined properly causing an issue similar to what you describe. It was recalled and it MAY still be valid. It is not likely a crankshaft issue rather the engine block.
