It didn’t go well….Timing chain and balance shaft delete 2.4 Ecotec VVT

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You do need a special tool for balance shaft delete. I clumsily fumble through a job I’ve done half a dozen times. It makes for a much longer video then I planned 🤷🏻‍♂️ lol

[@tobysirus4996]

Dont pry directly on the countershaft mounting flange It is aluminum and it will snap off and go flying.I use 2 screw drivers and try to distribute the prying on both sides. Hope this helps someone before they have to hit the scrap yard for that hard to find piece.

[@fritz4939]

I would never use a OEM/aftermarket black RH timing chain guide as a far stronger version is available in the US, including stronger fixing bolts or the Dorman top bolt can be used. An upgraded tensioner is worth fitting as well (they are primarily for engines fitted with stronger valve springs & producing high revs.). The valve cover should always be fitted either with an AC Delco FC219 filler cap or a catch can should be fitted.

[@Raceking46]

We spin these regularly over 7500 rpm and have yet to have a problem on any of them but yes if someone is worried about it by all means upgrade the parts.

[@tonyj5231]

Did you tap in block off sleeves with that custom tool in to close off the back oul passages? I know level zero mororsports sells blockoff bushings but i didnt see you put anything like that into the tool.

[@Raceking46]

No the tool taps the existing bearing back to block off the oil passages.

[@tonyj5231]

OK thanks for the info. Any worries about the bearings shifting and allowing oil to flow through those passages again, resulting in a drop in oil pressure?

[@Raceking46]

@@tonyj5231 we've never had that issue but I've heard of people having the plugs fall out.

[@nicholashammen7153]

How beneficial is it to delete the balance shafts? Do you notice a smoother power band?

[@Raceking46]

It allows the motor to spin up faster by removing rotating weight also blocking off the oil galleys formerly used for the shafts sends more oil to the head.

[@rogerkummerer775]

Does the 2.4 Ecotec motor come in the Cobalts? I have a 2.2 in my 04 Cav. Are the steps basically the same for pulling and taking a motor apart?? I've been lucky enough, knock on wood, to not have to pull a motor. Interesting idea about the balance shaft. I wonder who first tried what you said about cutting it off? You mentioned your father was a tool and die maker. I was the same for 19 years. But standing over lathes and mills on concrete floors took a toll on my lower back. I'm sure your dad deals with the same from time to time. Another informative video. Great work by you! Thank you!

[@Raceking46]

The 2.4 was available in the Cobalt sport model and some of the SS cars. As for the timing chain on the earlier 2.2 idk if its exactly the same but I'm sure its similar.

[@rogerkummerer775]

@@Raceking46 Thank you again Sir!

[@smittyfixes8723]

Do you run the 2.4 intake and if so do you use the 2.4 or 2.2 throttle body?

[@Raceking46]

Yes I run the big runner with the 2.4 TB. My car has always been a 2.4. Some guys run the 2.2TB but I believe it’s been Dyno proven that the 2.4 TB is better.

[@smittyfixes8723]

​@@Raceking46I'd like to pick your brain a bit if I could. Do you have an email or some other contact info?

[@jt_hoopz6384]

What happens if cam sprockets aren’t at 10 and 2 position when rotated to tdc?

[@Raceking46]

if you don't have the timing right the valves will hit the pistons. If your trying to find TDC to take it apart sometimes you have to rotate it alot of times over before it will line up perfectly.

[@jt_hoopz6384]

@@Raceking46 when I’m rotating the engine there is a bit of tension and then a click does this mean piston valve contact?

[@Raceking46]

@@jt_hoopz6384 with out seeing it for myself hard to say but if the timing marks on the chain lined up with the marks on the gears at tdc you should be fine.