Kia Rio: Head Bolt Torque Specifications

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Kia Rio: Head Bolt Torque Specifications
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The Kia Rio is a small, inexpensive car that was first introduced to the U.S. marketplace during the 2001 model year. The 2001 and 2002 model years featured a 1.5-litre DOHC engine, which was upgraded to a more powerful 1.6-litre DOHC engine for model years 2003 through 2005. In 2006 the Rio design was given a significant overhaul, which included a change to a more powerful and refined 1.6-litre DOHC CVVT engine. Each of these Rio engines has a slightly different specification for head bolt torque.

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2001 and 2002 Models

The head bolts on the 1.5-litre DOHC engine should be tightened according to the following procedure. There are a total of 10 bolts arranged in pairs across the engine. The bolts should first be tightened in sequence to a specification of 36 foot-pounds, starting with the middle two bolts and proceeding in sequence out towards either end of the engine. The bolts should then be loosened again in reverse sequential order, and then tightened again in the sequential order to a specification of 18 foot-pounds. Each bolt should then be marked, and each should be tightened an additional quarter turn, following the same sequence.

2003 Through 2005 Models

The head bolts on the 1.6-litre DOHC engine should be tightened according to the following procedure. There are a total of 10 bolts arranged in pairs across the engine. The bolts should first be tightened in sequence to a specification of 36 foot-pounds, starting with the middle two bolts and proceeding in sequence out towards either end of the engine. The bolts should then be loosened again in reverse sequential order, and then tightened again in the sequential order to a specification of 18 foot-pounds. Each bolt should then be marked, and each should be tightened an additional quarter turn, following the same sequence.

2006 Through 2011 Models

The head bolts on the 1.6-litre DOHC CVVT engine should be tightened according to the following procedure. There are a total of 10 bolts arranged in pairs across the engine. The bolts should first be tightened in sequence to a specification of 21.7 foot-pounds, starting with the middle two bolts and proceeding in sequence out towards either end of the engine. The bolts should then be loosened again in reverse sequential order, and then tightened again in the sequential order to a specification of 21.7 foot-pounds. Each bolt should then be marked, and each should be tightened an additional quarter turn, following the same sequence.

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