rebuild question
11-25-05, 12:39 PM
#1
rebuild question
hey i was wondering, since i am using FD rotors in my 87 TII, does that mean i have to use all FD rotor parts (side seal springs, bearings, corner seals etc.) i didnt think side seal springs were any diffrent but according to mazdatrix, they are. FD side seals springs cost 6.21. and FC side seal springs cost 1.56. so does anybody kno the diffrence? thanks
11-25-05, 02:16 PM
#3
ok thanks and also i was running 3mm seals but whoever built the engine before had a dual spring config. i am buying the RA 3mm seals which say they are for single spring, config. should i use dual springs again or use single spring? and if i use the single spring do i use the long one or the short one?
11-25-05, 02:18 PM
#4
all apex seals use dual springs, i dunno where that info came from, with only one spring the center of the seal would have no support.
also with FD rotors be sure you are using the correct front counterweight and flywheel, i'm not sure if the T2 PP will bolt up to the FD flywheel however, i haven't looked into that yet but i was thinking about building an FC/FD hybrid engine but hadn't gotten as far as checking the flywheels yet.
also with FD rotors be sure you are using the correct front counterweight and flywheel, i'm not sure if the T2 PP will bolt up to the FD flywheel however, i haven't looked into that yet but i was thinking about building an FC/FD hybrid engine but hadn't gotten as far as checking the flywheels yet.
11-25-05, 02:28 PM
#5
well the engine already had been running with the FD rotors the only problem was that the guy who had built it used two front rotors and the balance was thrown out the window. if u go to rotaryaviation.com and read about the 3mm apex seals it says to use single spring config. on it. im not sure but i guess ill use the dual spring. thanks for the help
11-25-05, 03:17 PM
#6
Engine, Not Motor
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If I'm not mistaken, rotors are the same front to back on the FD as they are on all 13Bs. As long as they are within two balance letters of each other then there should be no issues.
11-25-05, 05:22 PM
#7
just checking, but did you have the FD rotors milled out to 3mm? I know some people say they are going to run 3mm and think they will just fit in. Also 3mm seals do only run one spring. Atleast the ones Ive seen. Most 2mm seals run 2 springs though. It should be one long apex seal spring for the 3mm. Unless someone wants to correct me? Thats what I have gathered and received when I thought 3mm was a good idea. 2mm is plenty
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11-26-05, 01:07 PM
#8
yes the rotors were milled to 3mm, one of my rotors were damaged so im waiting on arrival of my new one so i can get it milled to 3mm. and for the whole apex seal spring thing can someone give me a definite answer? according to RA it says dual springs can be ran with modification to the apex seals but dual springs will cause more wear on the rotor. please let me kno as i dont want to buy the short sprigs for no reason. thanks
11-26-05, 03:02 PM
#10
you will find more info about single springs and 3mm seals in the first gen forums.
as for the rotors, they are non directional so there is no technical "front" or "rear", they are only labaled so they should be reinstalled in their original respective locations, if different rotors are used then it doesn't matter where they go but all the hardware associated with them should be new.
as for the rotors, they are non directional so there is no technical "front" or "rear", they are only labaled so they should be reinstalled in their original respective locations, if different rotors are used then it doesn't matter where they go but all the hardware associated with them should be new.
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