TheCowboy 4 Report post Posted March 3, 2019 328ti (M52_B28 and getrag 220) I am having trouble with a vibration during heavy torque application (2nd gear typically accelerating from 20kph) Is a heavy vibration that have had for a long time, have had driveshaft balanced, replaced center bearing, securing collar and guibo/flexi ring looks in good condition, what would be wrong? Shakes like it is from center of car under front seats Looking for any tips/experience or any garages/driveshaft experts I can take for a drive to see if can isolate problem as want issue fixed. Quote Share this post Link to post Share on other sites
Mad_Max 231 Report post Posted March 3, 2019 Just a few thoughts given you've already looked at the drivetrain, might give you something different to inspect: Flywheel not balanced. Pressure plate warped. Clutch worn/shuddering (assuming G220 box and 4cyl clutch conversion kit, it will slip/shudder under large torque loads) Gearbox mounts worn. Engine mounts worn. 1 Quote Share this post Link to post Share on other sites
C-130 Hercules 571 Report post Posted March 3, 2019 Has the guibo/flexi been installed correct way around? Had similar problem on a e39 once. Quote Share this post Link to post Share on other sites
TheCowboy 4 Report post Posted March 3, 2019 Yes, have checked Guibo fitted correctly Quote Share this post Link to post Share on other sites
B.M.W Ltd 950 Report post Posted March 3, 2019 (edited) Is the guibo hitting the gear selector rod when the gearbox moves under load ?. The rod can fit both ways and only one is right. Are you also using a very short shifter lever ? Edited March 3, 2019 by B.M.W Ltd Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted March 3, 2019 (edited) driveshaft to long ? stuffed uni joints ? what shaft was used , front and rear halfs from what models ? what size diff etc , small or med? Edited March 3, 2019 by BM WORLD Quote Share this post Link to post Share on other sites
TheCowboy 4 Report post Posted March 4, 2019 Car has a short shifter kit from a z3, unsure of driveshafts but believe they are factory manual 318ti driveshafts, along with a small case diff, have a medium case ready to go in it, but want to sort the vibration first Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted March 4, 2019 20 minutes ago, TheCowboy said: Car has a short shifter kit from a z3, unsure of driveshafts but believe they are factory manual 318ti driveshafts, along with a small case diff, have a medium case ready to go in it, but want to sort the vibration first double check the length make sure not too long should have some slack . 6cyl engine sit 25mm further back than 4cyl so shaft needs to be shorter as do the shifter parts etc check the uni joints on the shaft have not seized etc 1 Quote Share this post Link to post Share on other sites
TheCowboy 4 Report post Posted March 4, 2019 Universals feel ok, and workshop who did center bearing and seperate one who balanced driveshaft didnt note anything. Workshop who fitted center bearing didnt seem to know about preloading it 5mm to front of car, I have and car seems worse? Is that incorrect? Quote Share this post Link to post Share on other sites
