Putting S4 Tii Rotors In A S6 Motor
05-25-2005, 05:00 PM
#11
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[quote name='kahren' date='May 25 2005, 04:38 PM']by stock do u mean the way it come out of mazda or rebuilt, often enouf the parts get replaced and the motors are not as balanced. i noticed a lot of peopel dont knwo the diffrence between the s4 and the s5 counterweights, from having various rebuilt engines taken appart.
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I have an 88 NA MAZDA block here, 146,000 on it : Coolant leaker.
I think that will make an interesting experiment
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I have an 88 NA MAZDA block here, 146,000 on it : Coolant leaker.
I think that will make an interesting experiment
05-25-2005, 05:36 PM
#12
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[quote name='banzaitoyota' date='May 25 2005, 06:00 PM']I have an 88 NA MAZDA block here, 146,000 on it : Coolant leaker.
I think that will make an interesting experiment
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do it already! i am curious!
I think that will make an interesting experiment
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do it already! i am curious!
05-26-2005, 05:12 AM
#13
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Join Date: May 2005
Posts: 2
I've done it on my friends fd.
the only parts on short-shortblock were fd irons, housings, stationary gears and e-shaft. everything else from s4 t2. s4 n/a auto CW for rear. 3mm s4 t2 rotors. whole e-shaft assembly under front cover came from s4t2. I mixed only 2 engines.
i didn't balance anything. nothing unusual at 8k. no vibrations or loss of material.
the only parts on short-shortblock were fd irons, housings, stationary gears and e-shaft. everything else from s4 t2. s4 n/a auto CW for rear. 3mm s4 t2 rotors. whole e-shaft assembly under front cover came from s4t2. I mixed only 2 engines.
i didn't balance anything. nothing unusual at 8k. no vibrations or loss of material.
05-26-2005, 06:04 PM
#14
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Posts: 203
[quote name='banzaitoyota' date='May 25 2005, 06:09 AM']Balancing the rotating assembly is $450 + shipping.
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Through who? SDJ?
Why is he so much more expensive than RB? They list $317 for rotors, CW's, front pulley, and eshaft.
For an extra $126 you can also get the flywheel and pressure plate balanced, and still be a couple bucks below your listed cost, and its not really to question racing beats works and services.
Where's the extra $140 in cost going to?
Just curious if there was any significant differences between balancing methods or something....
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Through who? SDJ?
Why is he so much more expensive than RB? They list $317 for rotors, CW's, front pulley, and eshaft.
For an extra $126 you can also get the flywheel and pressure plate balanced, and still be a couple bucks below your listed cost, and its not really to question racing beats works and services.
Where's the extra $140 in cost going to?
Just curious if there was any significant differences between balancing methods or something....
05-28-2005, 11:33 PM
#18
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Posts: 1,420
How will cutting open a rotor show me how shops compensate for oil in the rotor? From what ive seen from rotor cutaways, there is a significant amout of oil that belongs in there. Im also under the impression that the volume of oil isnt always the same.
I hate to jump to conclusions, But I dont think its ever perfectly balanced.
I hate to jump to conclusions, But I dont think its ever perfectly balanced.
05-29-2005, 04:42 AM
#19
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Think of it like this: The amount of oil is a constant, it will be the same whether the rotor is balanced or unbalanced, the variable in the equation is the state of balance of the rotating assembly.
06-22-2005, 02:26 PM
#20
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[quote name='RONIN FC' date='May 26 2005, 06:46 PM']How the hell do they compensate for oil in the rotors while balancing?
Im still skeptical on the whole assembly balancing.
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From "Rotary Engine" by Kenichi Yamamoto:
Thr rotor is oil cooled by lubricationg oil, which is supplied under pressure to the oil passage (10) in the center of the eccentric shaft. Then it flows to the rotor bearing through oil passages located radially in the rotor jouranl portion, anfd finally into the hollow chamber inside the rotor. When the oil level inside the rotor is higher than the outer diameter of the stationary draining vane (11), the surplus oil is drained through the radial and axial passages which are interconnected. This maintains a constant oil level, and thereby eliminates engine vibration due to changes of oil quantity in the rotor.
All of these rotating components, including the eccentric shaft, rotor, bearing and flywheel (9), are dynamically balanced with the quantity of the cooling oil inside the rotor taken into consideration.
Im still skeptical on the whole assembly balancing.
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From "Rotary Engine" by Kenichi Yamamoto:
Thr rotor is oil cooled by lubricationg oil, which is supplied under pressure to the oil passage (10) in the center of the eccentric shaft. Then it flows to the rotor bearing through oil passages located radially in the rotor jouranl portion, anfd finally into the hollow chamber inside the rotor. When the oil level inside the rotor is higher than the outer diameter of the stationary draining vane (11), the surplus oil is drained through the radial and axial passages which are interconnected. This maintains a constant oil level, and thereby eliminates engine vibration due to changes of oil quantity in the rotor.
All of these rotating components, including the eccentric shaft, rotor, bearing and flywheel (9), are dynamically balanced with the quantity of the cooling oil inside the rotor taken into consideration.