how can you tell if ..........
12-26-03, 09:22 PM
#1
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how can you tell if ..........
hey guys,
how can you tell if one of your rotors goes out? i see these ads about one rotor going out,usually the front one. sometimes the rear. my question is.... how do you know when this happens? do you hear it,feel it,smell it? i have a 91 vert (180,000 mi)and it pulls like crap. im assuming its the clutch because it revs high to get it moving. can anyone tell me how i can check to see if have have a bad rotor.
how can you tell if one of your rotors goes out? i see these ads about one rotor going out,usually the front one. sometimes the rear. my question is.... how do you know when this happens? do you hear it,feel it,smell it? i have a 91 vert (180,000 mi)and it pulls like crap. im assuming its the clutch because it revs high to get it moving. can anyone tell me how i can check to see if have have a bad rotor.
12-26-03, 09:33 PM
#2
Uhm, compression check?
I learned that during my time at NASA...
I can tell a blown apex engine a mile away...turns over in a slower duh-duh-duh pattern, galloping shaky starting and hard starting, sounds like an old lawnmower when started, lots of vibration when running below 3krpm, refusal to run at low rpms or idle (below 1500), and total lack of power meaning you have to burn the hell outta the clutch to make the car move.
I learned that during my time at NASA...
I can tell a blown apex engine a mile away...turns over in a slower duh-duh-duh pattern, galloping shaky starting and hard starting, sounds like an old lawnmower when started, lots of vibration when running below 3krpm, refusal to run at low rpms or idle (below 1500), and total lack of power meaning you have to burn the hell outta the clutch to make the car move.
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12-27-03, 09:00 PM
#9
Flooding and low compression go hand in hand. My theory is as follows:
As compression gets lower, the rotary requires more time to build its initial compression for startup (i.e. revolutions). Most of the time this doesnt cause a problem, but the lower it drops, the slower compression builds, the more prone they are to flood. This is because your computer still thinks it has a factory fresh engine, and injects fuel on the first rotation/face. But the engine hasn't reached full compression yet, and it may not be enough to create combustion just then. IF the mixture doesnt combust, then you have instant flooding.
Some or most people go around talking about injectors causing flooding. Injectors can cause flooding, but usually aren't the primary problem. Perhaps injectors AND low compression are the ultimate cause of flooding. All I know is that I can take a motor that floods regularly and rebuild it. IT'll still flood during breakin, again a direct sign of low compression. As the engine breaks in and compression comes up, it will quit flooding and never do it again, even on the same old injectors (in 99% of cases). On rare occasions an injector can be so bad it will cause a very tight motor to flood.
As compression gets lower, the rotary requires more time to build its initial compression for startup (i.e. revolutions). Most of the time this doesnt cause a problem, but the lower it drops, the slower compression builds, the more prone they are to flood. This is because your computer still thinks it has a factory fresh engine, and injects fuel on the first rotation/face. But the engine hasn't reached full compression yet, and it may not be enough to create combustion just then. IF the mixture doesnt combust, then you have instant flooding.
Some or most people go around talking about injectors causing flooding. Injectors can cause flooding, but usually aren't the primary problem. Perhaps injectors AND low compression are the ultimate cause of flooding. All I know is that I can take a motor that floods regularly and rebuild it. IT'll still flood during breakin, again a direct sign of low compression. As the engine breaks in and compression comes up, it will quit flooding and never do it again, even on the same old injectors (in 99% of cases). On rare occasions an injector can be so bad it will cause a very tight motor to flood.
