Okay so just recently ive been hearing a very weird/distinct sound coming from the motor on my 02-400s.....when the motor shuts off, theres a very loud grinding noise thats very fast at first, and then within 5seconds the grinding noise gets quieter and quieter and stops... its got 40,000 miles on the orginal motor, never been touched. im afraid to tear it apart to find out what it might be.. haha. any thoughts? thanks!
This doesnt sound like a good noise to me...
Started by LiveFastDieAwesome, Feb 03 2012 09:39 PM
6 replies to this topic
Posted 03 February 2012 - 09:39 PM
Okay so just recently ive been hearing a very weird/distinct sound coming from the motor on my 02-400s.....when the motor shuts off, theres a very loud grinding noise thats very fast at first, and then within 5seconds the grinding noise gets quieter and quieter and stops... its got 40,000 miles on the orginal motor, never been touched. im afraid to tear it apart to find out what it might be.. haha. any thoughts? thanks!
Posted 03 February 2012 - 11:31 PM
There is nothing in a DRZ engine that should still be moving 5 seconds after shut off.. 1 sec is about it..
Can you get us a sound file?
Can you get us a sound file?
Posted 04 February 2012 - 02:50 AM
Could be...and I'm not sure if this is the proper terminology...your engine is giving your starter gear a donkey punch. On shutdown there's a slight reverse torque/kickback that gives the starter gear a spin. On 4-cylinder Toyota motors (22r/22re) this generally means a rebuild is due in the next 125-175k miles (doesn't spin a gear on them, just makes a light muffled backfire, like the Yota's trying to sneak a fart). On the upside...your compression is still good. 
And yes...hearing it would help so much.
And yes...hearing it would help so much.
Posted 04 February 2012 - 08:38 AM
Im heading back down to florida today to visit some family and friends, ill get a sound file when i get back on wednsday.. thanks for the replys guys.. It starts right up the second i hit the button, no hesitation at all.
Posted 04 February 2012 - 08:42 AM
thumpty dumpty, on 04 February 2012 - 02:50 AM, said:
Could be...and I'm not sure if this is the proper terminology...your engine is giving your starter gear a donkey punch. On shutdown there's a slight reverse torque/kickback that gives the starter gear a spin. On 4-cylinder Toyota motors (22r/22re) this generally means a rebuild is due in the next 125-175k miles (doesn't spin a gear on them, just makes a light muffled backfire, like the Yota's trying to sneak a fart). On the upside...your compression is still good.
And yes...hearing it would help so much.
And yes...hearing it would help so much.
Thanks for that info, and now that i think about it, your starter gear theory makes sense, thats almost what it maybe sounds like.. hmm..
