justmyluck Posted September 19, 2012 Report Share Posted September 19, 2012 My brother just got back from deployment a week or so ago and is trying to get his car started. Unfortunately, since he is in Florida and I am in Cbus, the only way I can help him is if he sends me videos. Can anyone help me decipher what is making the noise in this video? Car is a 91 Toyota MR2 n/a 5speed. Thanks Video: http://youtu.be/3oMpM5LrIC4 Quote Link to comment Share on other sites More sharing options...
Sledhead36 Posted September 19, 2012 Report Share Posted September 19, 2012 If it sat without stabil in the tank, the gas will be bad for sure. Could not hear any strange noise. I would drain the tank and start with fresh fuel. Quote Link to comment Share on other sites More sharing options...
acklac7 Posted September 19, 2012 Report Share Posted September 19, 2012 My brother just got back from deployment a week or so ago and is trying to get his car started. Unfortunately, since he is in Florida and I am in Cbus, the only way I can help him is if he sends me videos. Can anyone help me decipher what is making the noise in this video? Car is a 91 Toyota MR2 n/a 5speed. Thanks Video: http://youtu.be/3oMpM5LrIC4 Chewed teeth on the starter maybe? Sounds like the starter is bogging down once every 5 revolutions, when it should bog down the entire time the engine is cranking. Quote Link to comment Share on other sites More sharing options...
boosted98gst Posted September 19, 2012 Report Share Posted September 19, 2012 If the car had no issues before and thats the same fuel in the tank , id bet the fuel is bad. Id drain the tank and change the filter......pull off the fuel line to rail and crank over until the good fuel starts to come thru then try again. I had the same issue a few years ago when we left a talon sit for a year , after we drained the tank we bled the main line and the fuel looked like muddy water. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted September 21, 2012 Report Share Posted September 21, 2012 if the tank isn't full put fresh gas on top of the old stuff and hit it with a little bit of starting fluid and see if it goes Quote Link to comment Share on other sites More sharing options...
Steve R. Posted September 21, 2012 Report Share Posted September 21, 2012 That thing has either no contact at the starter (to spin the engine), or absolutely no compression. Are there spark plugs in it? Quote Link to comment Share on other sites More sharing options...
Crossle Posted September 21, 2012 Report Share Posted September 21, 2012 When cranking have someone look under the right rear of the car at the crankshaft pulley and make sure it is turning. IF it is NOT, then put it in like 3rd gear and rock the car back and forth to get the flywheel to change location and try again. IF the crankshaft pulley IS turning then it sounds like it has a broken timing belt. Fear not, it is non-interference. Take a 10MM and pull back the top timing cover and see if the belt is off the cam. It does NOT sound like a fuel issue, the cranking does not sound right, it is too fast. Quote Link to comment Share on other sites More sharing options...
Not Brian Posted September 21, 2012 Report Share Posted September 21, 2012 install a turbo, that'll fix it.. but yeah fill the tank first. Quote Link to comment Share on other sites More sharing options...
Crossle Posted September 21, 2012 Report Share Posted September 21, 2012 What will filling the tank do? We are not even sure at this point that it is turning over? This is what it SHOULD sound like.... Quote Link to comment Share on other sites More sharing options...
acklac7 Posted September 21, 2012 Report Share Posted September 21, 2012 It does NOT sound like a fuel issue This. If it were a fuel-quality issue I would expect to hear the engine/starter bog down randomly like "I wanna start, I wan, I wa, I wannnnna, Im gon, Im ga, Im gonnna start" type deal. Instead we're hearing the exact same abnormal cranking sequence over and over again, to me that says the problem is likely not related to fuel (quality), although I could very well be wrong. Quote Link to comment Share on other sites More sharing options...
acklac7 Posted September 21, 2012 Report Share Posted September 21, 2012 (edited) When cranking have someone look under the right rear of the car at the crankshaft pulley and make sure it is turning. Im pretty sure the starter is catching the flywheel, as you can hear it partially bog down. If it wasn't turning the flywheel you would just hear some whirling sound, similar to the sound you hear when bench testing one (starter). Edit: Listen carefully right @ 0:02 seconds, you can clearly hear the starter disengage from the flywheel and freewheel, note the "whirling" sound. Edited September 21, 2012 by acklac7 Quote Link to comment Share on other sites More sharing options...
Captain_Panic1647545539 Posted September 21, 2012 Report Share Posted September 21, 2012 I agree with Crossle. It sounds like a broken timing belt to me. Quote Link to comment Share on other sites More sharing options...
Crossle Posted September 21, 2012 Report Share Posted September 21, 2012 Im pretty sure the starter is catching the flywheel, as you can hear it partially bog down. If it wasn't turning the flywheel you would just hear some whirling sound, similar to the sound you hear when bench testing one (starter). Edit: Listen carefully right @ 0:02 seconds, you can clearly hear the starter disengage from the flywheel and freewheel, note the "whirling" sound. Agreed it does sound as if it does catch. Just verify to be sure, start simple/with basics. Quote Link to comment Share on other sites More sharing options...
acklac7 Posted September 23, 2012 Report Share Posted September 23, 2012 (edited) After thinking this through im going to venture a guess that the one-way clutch in the armature of the starter is going bad, allowing the armature/teeth to rotate backwards for a spilt second then catch and hold (allowing the starter to turn the flywheel), then release again. Only thing I can think of that would cause the starter to repeatedly bog down like that. Unfortunately the only way to test my theory is to purchase a new one. That said I'd almost put money on the problem being directly related to the starter. Even if there is zero compression/zero fuel/timing issue the starter should still bog down with a (more-or-less) steady groan the entire time it is in contact with the flywheel. Edited September 23, 2012 by acklac7 Quote Link to comment Share on other sites More sharing options...
Crossle Posted September 26, 2012 Report Share Posted September 26, 2012 That is very specific detail lol. Any updates O.P.? I'm curious as to how this turned out? Quote Link to comment Share on other sites More sharing options...
acklac7 Posted October 11, 2012 Report Share Posted October 11, 2012 Any updates O.P.? I'm curious as to how this turned out? +1 No follow up should = ban from tech help section. Quote Link to comment Share on other sites More sharing options...
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