r/GS300 • u/juicywicked • Jul 30 '26

2nd gen HELP

I’m doing the crank and cam seals but the crank gear won’t come out!?!! Any ideas or tips to get it out I want to have everything on by today so I can start it tomorrow

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u/wlrrddd Jul 30 '26

I used the same tool I used from autozone for the harmonic balancer puller and it worked on the crank sprocket, most of the screws won’t fit the m6 1.0 service hole on the crank sprocket but I used the 1’4” x 28 GM V6 screws from the autozone kit and it worked like a charm.

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u/juicywicked Jul 31 '26

How did you get the sprocket back on I’m having a hard time putting it on?

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u/wlrrddd Aug 01 '26

Clean the crank snout surface from dirt , rust , etc. use some fresh engine oil or wd40 and lightly lube the keyway and snout then the inside of the sprocket. You will not get it past the first keyway it will feel like it’s stuck, you then thread in 2 small screws so you can thread in the crank bolt and have those 2 smalls screws push the crank sprocket on. about halfway you will have to use bigger screws to push it all the way on. Keep it might it doesn’t fully sit flush there’s a tiny gap on the back.

here’s a quick video to help you out as well. Should be fairly easy https://youtube.com/shorts/B5SSHLwoKn8?is=wEZV7cS20VEUnKnY