[Z06] Question about crank bolt removal
Thread Starter
Drifting
Joined: Dec 2006
Posts: 1,552
Likes: 194
From: Selkirk NY
Question about crank bolt removal
Doing my cam install last night and had a hard time getting the crank bolt out. More specifically, I had a tough time not getting the crank to move so I could get the bolt off. I was able to break it free but it seemed like I would get about a quarter of a turn of the engine which I think shouldn't happen if the car is in gear and the E-brake is on. It's got me concerned a bit, wondering if it's a sign of a slipping clutch. I have never had one single issue with my clutch so I wouldn't think. I just remember when I did my cam install on my GTO that putting the car in 4th gear with the e-brake on locked it tight. Sorry for the long post- thanks.
Last edited by rico750sxi; May 12, 2009 at 01:55 PM.
Thread Starter
Drifting
Joined: Dec 2006
Posts: 1,552
Likes: 194
From: Selkirk NY
I did have it in 4th gear, then 5th gear, and 6th gear, and 1st gear. I tried all the gears and seemed to have the same problem. Just wondering how well I will get the bolt to tighten up tonight when I start reassembly.
Team Owner
Joined: Aug 2006
Posts: 30,897
Likes: 45
From: Picking on the weakest kid in the yard.
I know exactly what you mean. It twists and springs back like a spring, doesn't it? Mine did the samething. If the clutch was slipping, then it wouldn't spring back. I think it's either the rubber isolators at the ends of the torque tube giving, or the shaft inside the toque tube actually winding up like a torsion bar. I don't know, but it's not a good feeling either way. When I last reinstalling my crank pulley bolt. I got just up to the recommended angle before the crank moved. It was soo close that I felt it was close enough and my bolt has stayed in place just fine.
Instructor
Joined: Jun 2007
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if you put the car in 4th the crank won't move? why is that. just finished up a cam install and had to wedge a screwdriver in the flywheel to keep it still. i have to take it back apart thats why i'm interested...
Team Owner
Joined: Aug 2006
Posts: 30,897
Likes: 45
From: Picking on the weakest kid in the yard.
If the car is in gear, the rear wheels are directly tied to the crankshaft. If the rear wheels can't turn due to the parking brake, then the crankshaft can't turn. The higher the gear the better. If you use a low gear like first, you can too easily force the rear wheels to turn by overpowering the parking brake.
