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What did you do to your Boss 302 or S197 today?

302 Hi Pro

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TMSBoss: Was this all for preventative maintenance, or did something break or wear out? If it was for PM, what is the mileage on your U Code engine?
 

TMSBOSS

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PM along with one screw up. The springs, pump, balancer and gear were all PM. I misaligned the plunger from the actuator on the drivers side intake cam and bent the plunder on the cam phaser. I replaced both only to find out the actuator i received was the undated version which will Not plug in to the wiring harness on my 2012. So I replaced all four actuators and the wiring harness. I have not had issues with either although many did. Thought it was best to upgrade since I already broke a few parts.
Can't fire the mechanic, he is also the driver. 🤭
The cam timing chain set up is straight forward. Follow the book and double check everything. What could go wrong?? See above. LOL.

14K miles
 
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302 Hi Pro

Boss 302 - Racing Legend to Modern Muscle Car
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the actuator i received was the undated version which will Not plug in to the wiring harness on my 2012. So I replaced all four actuators and the wiring harness.
I do remember the cam phaser wiring harness production changes FoMoCo made late in 2011 for the end of run 2012 Boss 302’s. Early production units had a small connector & the improved version had a larger wiring harness plug for the cam phaser.

As a historical 2012 Boss 302 production note, my unit, (#2800) built the 3rd week of October 2011 did have the revised larger cam phaser plugs.

Have to credit Ford Racings continued involvement in the 2012 Boss 302 production run to to incorporate these improvements.
 

TMSBOSS

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I do remember the cam phaser wiring harness production changes FoMoCo made late in 2011 for the end of run 2012 Boss 302’s. Early production units had a small connector & the improved version had a larger wiring harness plug for the cam phaser.
Mine is early, 458, I took delivery in May of 2011. I have/had the early style harness and connectors. The swap was not bad too do. I should have taken a few more pictures of where the connectors went. Could have saved some time searching.
 
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