Interesting video on how the Stingray is assembled

[Mike S]

 I had seen this posted in the SPI group and though it is about a Stingray I still found it very interesting to see a mixture of automation and human intervention especially how the engine is assembled at Tonawanda.

https://www.youtube.com/watch?v=v8IfHy0E9I4

Mike

[cook_dw]

Not much has changed since I worked there back in '07..  If anyone hasnt been on a tour of the plant and you are in the area I would recommend it..  Its very interesting.

[69Z28-RS]

I've seen the video before but they must have slipped this comment by me the first time, because I didn't catch it..

at the 9:18 mark.. 'at this station a specialized device orients the engine so that no valves are open before tightening the bolts to the necessary torque.  This operation is called rocker arm rundown'.

I'm wondering what orientation the engine can be in such that NO VALVES are open..     The statement made it seem that a single orientation made this possible, but I've always had to 'orient the engine' to at least 4 positions to achieve this step!..

[cook_dw]

LS engines are different than conventional sbc.  They are torqued to a spec of 22-25ft lbs versus a lash spec.  I have done my fair share of ls engines and I always torqued them down and then rotated the engine 180 and recheck tq spec as they are pedestal style rockers.  The way they are designed the valve will not crash the piston unless the timing is off.  Now if you go to say a Jesel style rocker then its back to a lash setup.

[68 Ragtop]

Thanks Mike. I was only going to watch a few minutes of the video, but found it so interesting I watched it to the end.