2004 4.2L I6 chevrolet trailblazer head gasket day 4 and 5

This is day 4 and 5 of a series videos showing the entire disassembly and replacement of the head gasket on a 2004 Chevrolet Trailblazer 4.2L I6. There are 5 separate videos showing various disassembly and reassembly.
Video shows how to reset the timing chain tensioner plunger.
Video also includes how to deal with broken bolts and torquing issues.
Show the cam shaft Phaser VVT movement and setting.

[@lionellavallee1919]

Did you reuse the timing cam sprocket bolt or purchase a new one. I've looked at all auto parts shops . And no good.

[@blackericdenice]

I've owned a 2004 TB for 11 years. I never go by what the book say when it come to bolts torque. When you first said 22 ft-lbs. I was thinking, I would go 20 ft-lbs and be done with it. It is an all aluminum block. They can't handle a lot of torque. I've notice people online love to follow what the book say.
I also own a 2001 Deville and I wonder is that the reason why the Northstar head bolts are stripping out the treads. The factory over torque the head bolts.

[@james10739]

25 ain't a lot of probably go like 50 or so

[@fsu3784]

The deville heads are stripping because the bolts are made of a different metal. They have it figured out now

[@blackericdenice]

@@fsu3784 Have you ever install heads on a Northstar?

[@fsu3784]

@@blackericdenice probably over 30 of em

[@blackericdenice]

@@fsu3784 Did you have use GM 317 tool to set the timing?

[@darlinlubin7396]

When you rotate the engine dose the mark still have to line up ?

[@haydendominic7691]

A tip: watch series at Flixzone. Been using them for watching loads of movies recently.

[@ericmarcelo9256]

@Hayden Dominic definitely, I've been watching on flixzone} for since november myself :D

[@asadshahzad1993]

Please when you assambling the timing show the camshaft position please

[@ThaSatelliteGuy]

Seems like you have it backward as far as new vs old bolts. The old style would torque EASIER because the friction surface area between the bolt and the washer would be far less than if the washer were forced to turn against the head.

[@james10739]

Thats how I always saw it

[@markjones9689]

Torque those bolts to 100 ft lb and call it a day. It's worked for me every time

[@1jeffr]

I couldn't even imagine the frustration those bolts must have caused. My Trailblazer has approx 335K on it. After watching this, if it ever needs a head gasket, it probably will go to the junk yard.

[@ormonddude]

No Man you don't do the head and keep the old timing gear

[@DugeHick]

Why not?

[@chevyfreak1500]

The manuals says inch pounds

[@larryames8831]

Oops

[@turtlevaldez5357]

Can u send me videos 1,2&3 thank you