Caroline please have a look at this thread - this is a factory manufacturing defect and KIA know all about it:Carolyn said:We have a snapped pulley bolt on a 56 picanto 30000 miles ,what is the latset on this situation please.
Hi Carolyn,Carolyn said:Thanks for the info. Kia customer service refused to accept that this is a problem and would not pay for towing to the local dealer and so have paid for mechanic to remove the bolt which was found to be broken and of poor quality. Have paid for new bolt and replaced it at our own expense. The vehicle has done 30000 miles and is untouched other than main dealer.
From what I understand the machinedtolerances of the pulley and crankshaft were very poor at the factory. This results in very slight movement which is not noticeable at first but eventually the end of the crank and the pulley loosens off...and as a result the timing gets thrown completely out. This can normally be verified by checking the torque setting of the bolt which may fail as a result of the stresses.davy said:Excuse me if this has been answered before but what is the problem with the bolt is it not strong enough or has it not been treated with a locking compound when it was tightened up at factory during the build up of the engine.
I'm under the impression the new crank and bolt etc., is different.rogerwilkey said:Yeah UNIO06, I know what you mean.
There really is no appropriate remedy. This is my 3rd experience with the same problem on a 2007 Kia Picanto. Even f you do the "long" fix and replace the crankshaft, you have the same type of crankshaft that failed in the 1st place.
I'm going to replace the bolt and gear and sell it, But not before having signs made for each side of the car saying "If you want a lemon buy a Kia"
and park it on the street opposite the Kia dealership.