Vehicle & Technical > Discovery

untraceable ratle

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bigwood:
 :clap:I found that rattle and it had no connection with the alternator at all. Started engine , moved to top of drive, no rattle, switched off. Restated after putting overalls on , rattle started. Screwdriver on alternator no funny noises Took alternator belt off , no rattles.  Thinks me take all belts off and check crank damper and pulley. With a very bright torch from underneath the front I checked the pulley to see if it moved on the woodruff key. Next checked if the bolt was loose. When i got socket on the bolt  there was a clunk as I pushed the socket back. After taking the pulley off and looking closer I found the washer from behind the bolt head was loose but the bolt was tight. On taking the bolt out , bar on chassis and crank engine method. I found the washer must have been sat on the lip behind the bolt head not flat as it should have been. The locktite must have held the bolt but the washer must have taken 12,000 miles to rattle loose. Put more locktite on threads and grunt up tight. Cant get to big torque wrench for a week so I will have to grunt the bolt up for now and keep an eye on things meanwhile. Typically I have to make a long journey tomorrow, things being what they are at work and personal life my truck is not getting the TLC it deserves.
Regarding things that rattle, my mother in law flew in Dakota air ambulances during the war and was told when all the rivets rattle in sequence that is the right take off speed :shocked:

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