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<\/a><\/p>\nIn a stock 13b engine there is a seal pack consisting of three pieces and two springs per rotor tip (and that’s a three per rotor). This setup performs best in sealing effectiveness, but is prone to fail in high boost applications.<\/p>\n
The picture above shows what the seals can look like, after serious abuse. The piece at the bottom is broken.<\/p>\n This always ends in a complete engine rebuild, as the rotor, housing and seals are f***ed.<\/p>\n Above you can see, what the failure can do to the rotor…<\/p>\n As you have two rotors, you need to replace at least the following: All the apex seals (stronger 2-piece seals), 1 rotor, two rotor housings (pic above). Due to the engines no more being built in turbo version since 2002, the parts start to get rare and expensive.<\/p>\n So if you plan to get an FC or FD, be prepared… \ud83d\ude42<\/p>\n -Chris In a stock 13b engine there is a seal pack consisting of three pieces and two springs per rotor tip (and that’s a three per rotor). This setup performs best in sealing effectiveness, but is prone to fail in high boost applications.<\/p>\n The picture above shows what the seals can look like, after serious abuse. The piece at the bottom is broken.<\/p>\n This always ends in a complete engine rebuild, as the rotor, housing and seals are f***ed.<\/p>\n Above you can see, what the failure can do to the rotor…<\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n
\nWhy not starting a warm and nice Sunday with some tech nerd stuff. For today: The apex seals of the Mazda 13b engine.
\nThe weakest link in a rotary engine are the outer seals of its rotors, called the „apex seals“.<\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n