Lazyeye Posted December 28, 2009 Share Posted December 28, 2009 I'm trying to install a new clutch/flywheel into my 79 280zx, I decided to put in performance parts while I had it apart to install a new throwout bearing and pilot bushing. So while trying to bolt the pressure plate (Centerforce 2) to the flywheel I can't seem to get the pressure plate flush with the flywheel around the bolt holes. So question 1: Is the pressure plate supposed to be absolutely flush with the flywheel? Question 2: I'm an idiot, overtorqued a bolt and broke it off inside my super awesome expensive Fidenza flywheel. Then, used too small of an easy out to try to get it out and broke THAT off inside the bolt. Can a machine shop drill both out for me without destroying my super expensive flywheel? Quote Link to comment Share on other sites More sharing options...
rossman Posted December 28, 2009 Share Posted December 28, 2009 You need to shorten the pressure plate to flywheel bolts. They are bottoming out in the flywheel. Do a search, it is a common problem with Fidanza flywheels. Take it to a machine shop. They can drill it out or weld on a bolt head and back it out. Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted December 28, 2009 Share Posted December 28, 2009 Yeah go search about the Fidanza, it only uses 6 of the 9 stock bolts, and if you use a early N/A tranny with a 240mm Clutch then you need the turbo transmission collar. Quote Link to comment Share on other sites More sharing options...
Lazyeye Posted December 28, 2009 Author Share Posted December 28, 2009 You need to shorten the pressure plate to flywheel bolts. They are bottoming out in the flywheel. Do a search, it is a common problem with Fidanza flywheels. Take it to a machine shop. They can drill it out or weld on a bolt head and back it out. I'll check that out. It makes sense. Thank you. Quote Link to comment Share on other sites More sharing options...
rossman Posted December 28, 2009 Share Posted December 28, 2009 Also, as Flatblack says, make sure you got the right throw out bearing collar otherwise you will be taking it apart again. You need the collar that matches the pressure plate. If you have a 240mm pressure plate you need a collar off a 280zx turbo or 2+2. Nissan still sells them. Quote Link to comment Share on other sites More sharing options...
z-ya Posted December 28, 2009 Share Posted December 28, 2009 From my experience all you need is the correct collar/clutch fork pair. I've been running a non turbo (or 2+2) collar and clutch fork (280Z) for years with a 240mm flywheel. What you can't do is mix 240Z and 280Z collars and clutch forks. Been there, done that. To the best of my knowledge all L28 collars and clutch forks are the same. The L24 and L26 vary. Also make sure that the disc is on correct. Some discs have rivets that will prevent the disc from sitting flat on the flywheel surface if it is put in backwards. Quote Link to comment Share on other sites More sharing options...
Lazyeye Posted December 28, 2009 Author Share Posted December 28, 2009 The release bearing is new, and is OEM type. The sleeve is the original one and so is the clutch fork. I should be able to check it all out tonight. (I have my car in a buddy's garage 40 miles away since I don't have one) Quote Link to comment Share on other sites More sharing options...
JMortensen Posted December 28, 2009 Share Posted December 28, 2009 From my experience all you need is the correct collar/clutch fork pair. I've been running a non turbo (or 2+2) collar and clutch fork (280Z) for years with a 240mm flywheel. What you can't do is mix 240Z and 280Z collars and clutch forks. Been there, done that. To the best of my knowledge all L28 collars and clutch forks are the same. The L24 and L26 vary. Also make sure that the disc is on correct. Some discs have rivets that will prevent the disc from sitting flat on the flywheel surface if it is put in backwards. Clutch forks are not a problem, so long as you have the adjustable slave if you use the early fork. I used the early fork on a 280Z pressure plate with no problems at all. I liked the adjustability in the clutch. For those that didn't feel a need for adjustability, a non-adjustable slave pin and a 280Z fork should work fine on a 240Z pressure plate. The collar height matching the pp height is the key. Quote Link to comment Share on other sites More sharing options...
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