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Discussion Starter #1
Howdy,
I have an 87 300zx that I just bought as a first project car a couple weeks ago for $900. It has its issues and I’ve been working through them, I’ve already replaced both clutch cylinders because they were shot and now the car will move. However, there is a problem, the car is extremely finicky to get moving, it almost always stalls out on trying to move. The “BRAKE” light is also always on, and there is no resistance whatsoever in the parking brake handle at any point, which leads me to believe the brake is always engaged. Also, it is nearly impossible to move in neutral, it has to be pulled by another vehicle. I may be totally wrong but that leads me to believe the parking brake is staying engaged, but I don’t really know what to do about that. What do I do?
Thanks, -Carson.
 

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maybe your brake pads are sticking to the rotors, or you've got some other problem with the hand brake system. have you checked the brake master cylinder and booster? you could try to jack up the car and try to spin each wheel by hand while in neutral. the handbrake can be adjusted from underneath the car. go here for everything Z31: www.xenonzcar.com
check out the Factory Service Manual as it will show you exactly how to troubleshoot the hand brake system. its free on the website. good luck on your project and welcome to the club.

btw, get your cash and a parts list ready.... Z31's are known to break. quite frequently :devil

Bon
 

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Discussion Starter #3
Thank you Bon! I’ll definitely try that out, And report back when I get the time to. I appreciate the help, and am glad to be a member of the community.
Thanks. -Carson
 

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Discussion Starter #4
Yeah, I’ve had the time to test the wheels. And as far as I can tell the wheels are definitely stuck and not spinning freely. I’ve lifted the car and tried spinning them while off, spinning them while running and spinning them with and without the parking brake on to no avail. I don’t exactly know what to do from here, I’m not 100% sure just adjusting the PB would do anything, because it looks to me that the brake cable is attached to the handle on the inside of the car, however when the brake is released, it just isn’t releasing the cables and the braking mechanism off of the wheels. I don’t know what the best course of action would be now.
Thanks
- Carson
 

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Yeah, I’ve had the time to test the wheels. And as far as I can tell the wheels are definitely stuck and not spinning freely. I’ve lifted the car and tried spinning them while off, spinning them while running and spinning them with and without the parking brake on to no avail. I don’t exactly know what to do from here, I’m not 100% sure just adjusting the PB would do anything, because it looks to me that the brake cable is attached to the handle on the inside of the car, however when the brake is released, it just isn’t releasing the cables and the braking mechanism off of the wheels. I don’t know what the best course of action would be now.
Thanks
- Carson
Is this wheel rotation problem all 4 wheels or only the rear wheels? Moving forward I will assume it is only the rear wheels. If you have not downloaded the Factory Service Manual (FSM) yet, get it. http://www.xenonz31.com/

Remove your rear wheels and take a look at things. What is keeping the wheels from rotating? Is the caliper clamping the brake pads tightly to the rotor? If you are unsure remove a caliper or just rotate it off the pads and see what difference that makes. (The BR section of the FSM covers the brakes. I recommend reading the significant parts)



This should at least let you figure out if it is the brakes.
 

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Discussion Starter #6
As far as I know the wheel rotation problem is only the rear wheels, I haven’t checked the front wheels. Like I said in my original post, the car does drive, it just won’t roll in neutral of course. I Will definitely have to check out the caliper situation. Thank you very much for the help.
-Carson
 

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Either the rear calipers are seized or the parking brake is stuck
 

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Discussion Starter #8
Okay, so I’ve pulled off the rear wheels and have great news. It was the calipers, they were tightly gripped to the discs. However, with the help of a rubber mallet and some time, I got them unseized and they work great now! The car rolls like a champ and is much easier to start off driving. Thanks to everyone and all the help they’ve given, I greatly appreciate it. -Carson
 
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