What year did harley change to hydraulic cam chain tensioners

All of which in 2007 resulted in H-D modifying the part with a hydraulic actuated tensioner. As it turned out, 2007 was a big year for other reasons too. Emission laws cranked up another notch forcing H-D to adopt electronic fuel injection on all Twin Cam models.

When did Harley start using hydraulic cam tensioners?

1999-2006 Harley Davidson introduced the Twin Cam motor. In order to run the valve train Harley went to a cam chain tensioner set up utilizing a spring loaded shoe putting pressure on the cam chain with push rods

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How long does a cam chain tensioner last?

How long does a timing chain tensioner last? A timing chain tensioner should last between 80,000 and 120,000 miles. This time will also depend on if you follow proper care and maintenance of the vehicle. It may have premature failure without frequent oil changes or other maintenance tasks.

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How much does it cost to replace a cam chain tensioner?

Typical costs may include Mechanic Repair Service and Car Parts cost. The average cost to replace timing chain tensioner is around US$1000 to US$1600. In which the service is around US$600 to US$1000 while aftermarket auto parts are estimated between US$450 and US$600

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How does a hydraulic cam chain tensioner work?

The tensioner ensures the correct and necessary tension of the timing chain that surrounds the crankshaft sprocket and the camshaft sprocket. It exerts full control, making the chain run smoothly, preventing it from rattling and coming off the sprockets

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What year did Harley start the twin cam?

The Twin Cam was the second engine from Harley-Davidson to use two cams to drive the valvetrain, the first being the JDH racing model introduced in 1928. The Twin Cam 88 was released for the 1999 model year in September 1998.

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Why do timing chain tensioners fail?

What causes a timing chain tensioner to fail? Usually, timing chain tensioners simply wear out over time. A tensioner may also become over-extended if the timing chain is stretched. Lack of maintenance (oil changes) can lead to accelerated timing component wear, as well.

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How long will a stretched timing chain last?

When does a timing chain need to be replaced? The timing chain normally needs to be replaced between 80,000 and 120,000 miles unless there is a specific problem. Issues with the chain are common in higher mileage vehicles.

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Why do timing chain tensioners fail?

If the engine overheats, it can cause the timing chain tensioner to fail. The timing chain tensioner is responsible for keeping the timing chain tight and in proper alignment. If the engine overheats, the metal components of the timing chain tensioner can expand and cause the chain to become loose or misaligned.

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How much does it cost to change a timing chain?

Timing chain replacement can cost between $600 and $800 for a DIY repair, or between $1,600 and $1,800 with a mechanic. The cost is high due to the complicated nature of replacing this part. If you want to DIY a timing chain replacement, the parts will cost around $650.

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Videos

>13:18If you’ve got a Harley Twin Cam 88 and haven’t ditched your mechanical chain tensioners yet, then this video is for you!YouTube · Iron Anchor Cycles · Jan 24, 202110 key moments in this video

>24:12Part 2 in this series continues with the installation of the secondary tensioner using the tool specifically for this task. On this bike the …YouTube · Classic Wrench · Feb 3, 202210 key moments in this video