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Originally Posted by AJxtcman  .
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Ok this is what I know.
04-05
First Design
all roller chains. Crank gear has rubber molded onto it. The rubber falls off.
Second Design
the lower/ primary chain switched to a Inverted Tooth and the upper chains same as first design
06-07
Third Design
• Timing chains are identical to second design.
• The camshaft position actuator sensors are a new design.
• The camshaft position actuators incorporate new sensor wheels that correspond with the new design of camshaft position actuator sensors.
Fourth Design
• New secondary timing drive chains, inverted tooth (IT) design.
• The camshaft position actuators incorporate new sprockets that correspond with the use of IT chains on the secondary timing drive system.
• The intake camshaft position actuators are different for the left and right sides.
• The left and right secondary timing drive guides are new due to the use of IT chains on the secondary timing drive system.
• The intermediate timing drive sprockets are new due to the use of IT chains on the secondary timing drive system.
• New intake camshafts.
• New fourth design IT primary timing drive chain.
• New fourth design IT crankshaft sprocket.
• Fourth design IT primary chain is not interchangeable with second and third design.
The problem is with the fourth Design only the first ???. The chains were not hardened. They stretch a lot. A whole lot. Not that big of a fix. It does not take to much time to do. |
Thanks for history.
We picked up our 07 SRX from dealer lat night. Our paper work shows that TSB J0820 was accomplished which included installing (2) 12589011 chains, (2) 12616608 chains and (1) 12616609 chain. Car runs good.
Don