July 5, 20159 yr comment_473234 If it's fixed leave it alone! Don't break what isn't broken... Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473234 Share on other sites More sharing options...
July 5, 20159 yr comment_473235 Sounds simple to me too. Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473235 Share on other sites More sharing options...
July 5, 20159 yr Author comment_473240 Its indeed fixed! Im just curious and want to know how many turns he gave to both idle mixture knobs to set it perfectly! Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473240 Share on other sites More sharing options...
July 6, 20159 yr comment_473268 I set mine 5 years ago and haven't touched them since. Bonzi Lon Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473268 Share on other sites More sharing options...
July 6, 20159 yr comment_473321 The exact position of the adjustment does not really matter. You will need to change the setting each time you tune up the car. However, if you want to know the current position for use as a baseline you don't need to take the domes off, or anything else for that matter. Simply turn them in carefully and count the turns as you go. As already stated, the car is working - don't mess with it! Go drive it and enjoy it for a change. Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473321 Share on other sites More sharing options...
July 7, 20159 yr Author comment_473326 OK, thanks Beermanpete!!! Im sure enjoying! Now i can move forward and install the Gen II Mini Vintage Air evaporator and Sanden 508 compressor. I am still looking for the compressor bracket that bolts in the 4 holes but nobody seems to know which one will fit perfectly to that compressor! Edited July 7, 20159 yr by jalexquijano Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-473326 Share on other sites More sharing options...
February 1, 20169 yr Author comment_485800 On ‎06‎/‎01‎/‎2015 at 0:01 PM, siteunseen said: I too think it's possibly in your drivetrain, FWIW.   Maybe take it to a transmission shop and have someone drive it? I also received a similiar opinión as yours. I do hear a distinct "clunk" when releasing the gas pedal at first gear under 2000 RPM. The back and forth shaking is not present if a delicately step on the gas and lift the pedal softly but you normally dont drive like that. Another user has commented that i should replace the transmission mount as the clunk is Heard and felt  from behind. Do you agree???? ANyone?? Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-485800 Share on other sites More sharing options...
February 28, 20169 yr comment_487430 Report the new pump and the 5.5 psi measurement here. Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-487430 Share on other sites More sharing options...
March 7, 20169 yr Author comment_488010 Airtex 8012S measuring 5 psi at the rear carb! I moved the idle timing from 12 to 15BTDC. Do you think this can affect or damage the engine in someway? Trying to advance a Little bit to see if i get rid of the slight hesitation below 2000 RPMS. Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-488010 Share on other sites More sharing options...
March 7, 20169 yr comment_488019 Read the recently updated thread "uneven oil pressure". I think you'll never be happy with that motor. Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-488019 Share on other sites More sharing options...
March 8, 20169 yr comment_488033 3 hours ago, jalexquijano said: Airtex 8012S measuring 5 psi at the rear carb! I moved the idle timing from 12 to 15BTDC. Do you think this can affect or damage the engine in someway? Trying to advance a Little bit to see if i get rid of the slight hesitation below 2000 RPMS. All of the links on SU's that I find say that 5 is too high and might cause problems.  I don't even know exactly how the SU's maintain pressure but spec. is 3.4 psi according to the FSM.  I assume that the mechanical pumps regulate internally, and there is an orifice in the carbs that provides back pressure.  You'll need a pump that regulates pressure internally if you want to continue to use that method.  If you don't, again assuming, you'll have to remove the blockages to allow flow and place a regulator in line, or dead- head the carburetors and replumb them, with a regulator at the T with the return line.  From what I gather, the 240Z's all have a return line so there are lots of options.  You still haven't described clearly how exactly your system is plumbed though.  A regulator won't do you any good unless it's plumbed correctly. http://mgaguru.com/mgtech/fuel/fp202.htm Converting to mechanical might be good for you, (like a pond) -  Some good information in this thread from a year and a half ago -  Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-488033 Share on other sites More sharing options...
March 8, 20169 yr comment_488035 4 hours ago, jalexquijano said: Â Link to comment https://www.classiczcars.com/forums/topic/51578-shaking-back-and-forth-motion-at-1st-and-2nd-gear/?&page=5#findComment-488035 Share on other sites More sharing options...
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