Posted February 7, 20196 yr comment_567617 My brakes are stuck. I’ve pulled the rear tires off, and I’m trying to get the wheels off to look at the brakes. I’m using a rubber mallet and a block of wood, along with spraying wd40 and carb cleaner where I can to try to break things loose. Any ideas on a better way to do this. I’m thinking that ATF might be a better product to break things loose. ??? Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/ Share on other sites More sharing options...
February 7, 20196 yr comment_567623 I used a small sledgehammer on my rear drums. Took a couple of days and broke a few fins but they finally came off. It had sat for years too. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567623 Share on other sites More sharing options...
February 7, 20196 yr comment_567628 Can you get to and turn the adjusters? Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567628 Share on other sites More sharing options...
February 7, 20196 yr comment_567629 If you want to replace rear drums, they are cast and can be cracked apart to remove. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567629 Share on other sites More sharing options...
February 7, 20196 yr comment_567631 As @Patcon suggested work on the adjusters and try to make sure they are retracted. Keep it up with the block of hardwood and big f'in hammer. They can be a bear to remove, but should eventually break free. I hope you don't damage the fins--the finned cast aluminum drums are another neat aspect of our Z's. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567631 Share on other sites More sharing options...
February 7, 20196 yr comment_567638 If the drums have lots of wear, that produces a ridge of metal that makes it very difficult to remove them. It gets much easier if you get the adjusters to move. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567638 Share on other sites More sharing options...
February 7, 20196 yr comment_567640 Once you get the drums off if you decide you need to replace the wheel cylinders you might find this thread of help. The wheel cylinders for that car are very expensive, but can be replaced with the much cheaper ones on the slightly later cars. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567640 Share on other sites More sharing options...
February 7, 20196 yr comment_567643 If the pads are seized to the shoes then some heat will help. Watch out for asbestos dust! Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567643 Share on other sites More sharing options...
February 7, 20196 yr comment_567649 2 hours ago, Patcon said: If the drums have lots of wear, that produces a ridge of metal that makes it very difficult to remove them. It gets much easier if you get the adjusters to move. Usually it's a two part problem. This is the second part. If you can get them to spin then spinning and pulling at the same time can get you started over the ridge. It's tedious and difficult. Pull, spin, wobble, pound.... Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567649 Share on other sites More sharing options...
February 7, 20196 yr comment_567652 8 hours ago, Zup said: I hope you don't damage the fins--the finned cast aluminum drums are another neat aspect of our Z's. Yes! Very expensive too, if you can find them. Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567652 Share on other sites More sharing options...
February 8, 20196 yr comment_567668 Heat the brake drum between the wheel studs to brake the rust that forms there, you need to get it pretty hot, penetrating oil will help also. Backing off the brake shoes will greatly help if possible. The fins are delicate use a block of wood between the hammer and drum. Lastly keep at it, it took several cycles of heat and banging on them in my case. Edited February 8, 20196 yr by jwtaylor Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567668 Share on other sites More sharing options...
February 8, 20196 yr comment_567671 Depending on how bad they are, it might require drastic measures. I had one rusty old 280Z parts car that had been stored for about a decade and the drums were so seized on that I had to cut the drums in two. Even then, they were a bear to pry off. Hopefully it doesn't come to this! Good luck. Edited February 8, 20196 yr by Jeff G 78 Link to comment https://www.classiczcars.com/forums/topic/61557-70-240z-parked-15-years-brakes-stuck/#findComment-567671 Share on other sites More sharing options...
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