Guest Anonymous Posted January 25, 2001 Share Posted January 25, 2001 ok guys, i picked up a 79 280ZX yesterday to do my turbo ZX swap into and its running ok, but it pops out of 5th gear if you suddenly let off the gas. it only does it when the tranny is asked to suddenly slow the car down. its happening most often in 5th gear, but it has also accurd in 2nd, 3rd, and 4th. is this just a simple misadjustment on the linkage which is causing this to happen? it shift smoothly, does not grind at all, and the clutch feels nice and smooth. any ideas what would be causing this???? Quote Link to comment Share on other sites More sharing options...
John Scott Posted January 26, 2001 Share Posted January 26, 2001 I was always told that when the synchros start to wear you can experience the popping out when you let off. You might want to throw that ? at a transmission shop to confirm. JS Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted January 26, 2001 Share Posted January 26, 2001 My T-56 did the same thing in 3rd. A new synchro solved the problem. Mark Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted January 26, 2001 Share Posted January 26, 2001 Just for clarity sake for those who havn't seen the inside of a manual box, heres a Ford gearbox that shows the synchros. The synchros in effect slow the shaft down when the shift forks start to move to try and match the output shaft speed and allow smoother engagement and then lock the two shafts causing a different routing of the power path to produce a different ratio. For those that know and have seen this,sorry but thought some might like to see it: Lone Ps: The point to all this is if the syncro doesn't keep the shaft locked all the way, when it gets worn, it pops out and you find yourself in neutral. [This message has been edited by lonehdrider (edited January 26, 2001).] Quote Link to comment Share on other sites More sharing options...
pparaska Posted January 26, 2001 Share Posted January 26, 2001 Awesome, Lone. I'd seen those kinds of pics before, but having it here on line is great! Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted January 26, 2001 Share Posted January 26, 2001 well, i appreciate everyones help, but things just got extremely bad today. the clutch started to slip EXTREMELY bad. it started without any warning so i'm thinkin it might be the clutch, it might not. but regardless, i have decided to save up for a few weeks and get a very nice 5 speed and a new clutch at the same time. anyone looking to sell a good tranny in the next few weeks?!?! Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted February 3, 2001 Share Posted February 3, 2001 so i'm thinkin it might be the clutch, it might not. David, FYI: Chances are you have multiple prob's w/that trans. A slipping clutch would not cause the trans to kick the shifter out of its gear. Sorry to be the bearer of bad news: you have bad synchro's & a slipping clutch. Good luck in your search for another trans. You're in Dallas...dont forget to scour over the Parts Sections of the Auto Traders; they are always an excellant source for Ford and Camaro/Firebird transmissions. Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted February 4, 2001 Share Posted February 4, 2001 If its a nissan trans you are talking about this is the problem. There are plugs in the center of the trans underneath with ball bearings that are held in place by springs. This detent ball holds the trans in gear. If you replace the springs it should cure your problem, if im making no sense just email and ill try to whip up a long drawn out explanation of a simple problem. ( i get wordy sometimes LOL) Evan Quote Link to comment Share on other sites More sharing options...
J Taylor Posted February 9, 2001 Share Posted February 9, 2001 David: Mine was doing the same thing just before 5th gear broke....again. JT ------------------ 1978 280z with 280zx turbo motor. Big turbo, big intercooler, and alotta boost. 8.4 @ 90 1/8 mile with a bad bad traction problem. 1994 Mustang Cobra with a few mods..... http://turbotaylor.homestead.com/files/index.html Quote Link to comment Share on other sites More sharing options...
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