Fiat 126 Chat > Fiat 126 Mechanical Problem Solving

Terrible Engine Vibration

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Pete126:
Have you checked for play in the alternator bearings? Try taking off the fan belt for a moment and see if the vibration disappears also check that the fan hasn’t started to do disintegrate, if some of the blades are broken or missing this will unbalance the engine also.

5816nick:
Thanks Pete, I Didn't think of the Fan or Alternator! I'm working on it on Monday so i'll let you know what i find.

Kind regards Nick

Minijohn:
Is it actually firing on both cylinders?

5816nick:
Hi, Yes it runs very well on both cylinders, goog compression on both cylinders,  ticks over fine, revs up fine both stationery and when driven but as soon as you hit 1700-2200 RPM -  this terrible vibration, the whole car shakes violently - it's so bad you can't drive it >:(

5816nick:
I Took the Fan Belt off and Ran the engine for a few seconds, The Vibration is Still there and as bad as ever ..... I'm Stumped

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