`02 M750. 9XXXmiles
Hello everybody, hope ya'all are enjoying the summer... [Dolph]
I have a question. @ 5000rpms no matter on what gear it is .. i get a high vibration coming from the engine until i shift to the next gear. (obviously the rpms drop)
any idea where the vibration is coming from?
Quote from: Carbon 14 on August 13, 2011, 02:18:27 AM
I'd start with a carefull inspection of the chain & both sprockets. Second would be a complete inspection of timing belts & rollers. Last would be a complete oil change looking for any metal shavings.
ok when you say inspect the sprockets and the chain.. thats what? check if they theres a ware on the chain and sprockets? see if the chain is too tight ? (it does this even if its in neutral on the stand)
i adjusted the valves of the horizontal cylinder but not on vertical . maybe thats what it is.. guessing.
Did the vibration start right after you adjusted the horizontal cylinder valves? If so that's a pretty strong clue that something did not go right with the job and it needs to be rechecked. I don't think that correctly adjusting one cylinder's valves and not the other would start any sort of vibration problem.
Clutching at straws - motor mount bolts tight?
Quote from: Langanobob on August 13, 2011, 01:14:45 PM
Did the vibration start right after you adjusted the horizontal cylinder valves? If so that's a pretty strong clue that something did not go right with the job and it needs to be rechecked. I don't think that correctly adjusting one cylinder's valves and not the other would start any sort of vibration problem.
Clutching at straws - motor mount bolts tight?
no no no., the vibration was there before i even touch smth . i did one cylinder coz i had backfire through the intake .
and yes i agree with you 100% that is not a good thing to do . i havent checked the motor mounts bolts . i will tomorrow.
clutching at straws???
Quote from: Carbon 14 on August 14, 2011, 11:09:50 AM
If it happens in neutral on the stand you can forget the chain & sprockets since they're not moving. Check the timing belt system. Maybe a bearing going south or improper belt tension.
will do ! ;)