Tony Posted September 19, 2013 Report Share Posted September 19, 2013 The play could allow the shaft to oscillate outside of the pick up points, that would vibrate. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 20, 2013 Author Report Share Posted September 20, 2013 Yes. Now I am feeling that vibration under my feet and through the car as well. Tomorrow I am going to buy one I found on scrap yard. 50 Euros. Here are the results of balancing on Hunter machinery This is results for my summer tires. This is for my winter tires. This is output for one of my winter tire that couldn't be balanced. Here is stated that Force matching won't get wheel in limit. Quote Link to comment Share on other sites More sharing options...
Tony Posted September 21, 2013 Report Share Posted September 21, 2013 I take it the wheel that couldn't be balanced is no longer on the car? Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 21, 2013 Author Report Share Posted September 21, 2013 No it isn't on the car anymore. I dropped the tire. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 24, 2013 Author Report Share Posted September 24, 2013 Bit update on this nightmare. Last night I managed to change left drive shaft. It was in better condition than the one took of the car. There is significant play in the inner as well as in the outer CV joint. We took a car on the test drive and found that steering wheel is somehow stiffer and better handling but 50% of the vibration on the 120 km/h are still there!? We took car back on the jack and found that there is some play in the right drive shaft, more precisely in the inner CV joint. I moved the wheel about 1 cm approximately and my friend found that there is play inside the inner CV joint. The plan is to try found new spider with bearings to repair that inner joint to see if there will be vibrations still. Nightmare.... Quote Link to comment Share on other sites More sharing options...
Tony Posted September 24, 2013 Report Share Posted September 24, 2013 1cm is a mile when it comes to precision bearings and final drive...... I think you are getting there. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 24, 2013 Author Report Share Posted September 24, 2013 Yes it certainly does a mile..... Quote Link to comment Share on other sites More sharing options...
Tony Posted September 24, 2013 Report Share Posted September 24, 2013 The fact that things are getting better suggests you are on the right track. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 24, 2013 Author Report Share Posted September 24, 2013 Thanks Tony for cheering me up! I am really bit under surface with all this that happens to me.....I hope i will resolve this with repairing inner cv joint by installing new bearings on the spider. Quote Link to comment Share on other sites More sharing options...
Tony Posted September 24, 2013 Report Share Posted September 24, 2013 As said if the work replacing the other shaft made no difference then it's another story, on top of the results you did get there's still issues with the other joint, so i think you have found the criminal. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted September 25, 2013 Author Report Share Posted September 25, 2013 I hope it will be solved with the replacing bearings on the inner joint spider (crossing). I remember last year in the novembar i put the used drive shaft on the right side since my steering wheel badly shake while acceleration. I have no such symptoms now but just those vibration through steering wheel and under the car somehow....we will see....any way i will keep you informed Quote Link to comment Share on other sites More sharing options...
Tony Posted September 26, 2013 Report Share Posted September 26, 2013 Please do Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 4, 2013 Author Report Share Posted October 4, 2013 I did the bearings in the inner CV joint this afternoon and nothing have been changed so far. Everything is absolutely the same...and i don't have any idea what could be culprit.....I quit from Ford definitively... Quote Link to comment Share on other sites More sharing options...
Tony Posted October 5, 2013 Report Share Posted October 5, 2013 Are we also absolutely sure there's no bind on the front brakes? Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 5, 2013 Author Report Share Posted October 5, 2013 We didn't find anything in front brakes and during the driving everything seems normal. No hot discs, normal braking power...do you have idea what exactly I should pay attention to? Quote Link to comment Share on other sites More sharing options...
Tony Posted October 6, 2013 Report Share Posted October 6, 2013 Remind me...... What speed does the vibration start, when it starts does it stay the same or get more violent with speed and can you drive through it? Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 6, 2013 Author Report Share Posted October 6, 2013 Vibrations slightly starts at 110 km/h, than are increasing and its peak is between 120 and 130 km/h and lasts till the 140 km/h when it stops. But i can sense them on all speeds when I slightly turns the steering wheel left or right. Let's say 5 degrees left or right and i can sense the vibrations like the front wheels aren't balanced. Turn back wheel in the middle position and nothing till i get the 110 km/h when vibs are shown as above but this time is more like up and down and steering wheel don't shake at all, more felt through the wheel as well as through the all car. It also depends on the road surface as far as I figured out. Their frequency aren't low like it is on unbalanced wheel but more high and I am feeling like they are coming from the middle of the car. Passenger seats are shaking (wobbling) like rear wheels aren't balanced. I've changed next stuff since it had shown in the august last year: 1. Front shocks....no result 2. New alloys with tyres....no results 3. Right drive shaft.....good result since it eliminated heavy vibs under acceleration (worn inner CV joint) 4. Hydro bushing on lower arms....vibrations decreased by 25% or more, while we're doing that we noticed lower transmission mount is worn (better say there are crack in the rubber inside the moount), After this works vibrations are still there but not so strong and since I didn't have any money for the repairs I decided to not pay attention to them. In the april this year I changed the tires (Uniroyal summer tires) and I got in the conversation with few guys who worked in the garage (very experienced ones since they are more than 50 years old) and told them about my personal hell with this. They put the rear tires on the machine and rotate the tires on the rims for 180 degrees and let me go on the highway. What a shock!!!! I aproached the 120 km/h mark on the speedo and.....nothing!!!! Smooth as babies skin!!! I couldn't believe how my car is quiet, nice, smooth and real limousine! After let's say one month some vibs showed again on the wheel but it was like any unbalanced wheel. After i did the fronts wheels in the august (one year after vibs showed for the first time) my old vibro feeling came back. After that I tried to do balancing on the Hunter machinery, changed left drive shaft and finally I did change of bearings in the right drive shaft. Vibs are still here like I haven't done anything but I must say they are not so deviant and noticeable like they used to be. ..... Quote Link to comment Share on other sites More sharing options...
Tony Posted October 7, 2013 Report Share Posted October 7, 2013 It has to be a rotational mass since there is a frequency involved, but you seemed to have covered all the bases. I'm going to need to think about this one? Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 7, 2013 Author Report Share Posted October 7, 2013 Well I don't have any issues with the brakes as well but I will check them any way and do some grease on calipers and so other parts there. I just can't figure out what can be cause of that since I have changed many of those parts who supposed to be culprits by books. What's left is to check gearbox (i don't know how to do it?) and steering rack?! I am really confused with the seats shaking on that speed which is most noticeably after all those works on car since it is pointing on the rear wheels but it is balanced on the Hunter as well.....you said also wheel don't unbalance so easy! Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 7, 2013 Author Report Share Posted October 7, 2013 As you mentioned rotational mass I went to one garage near my work place to check the balance on rear wheels. It was on left wheel 30g/30g and on right one 25/70gr. Guy said it was unbalanced!? I am completely confused with this since I was on Hunter machine 3 weeks ago. Is it possible it went out of balance so much. I took a ride on the highway and the vibs are decreased in let's say 75%. Quote Link to comment Share on other sites More sharing options...
NickT Posted October 7, 2013 Report Share Posted October 7, 2013 Try putting a white mark on the tyre near the valve as see if it moves. Long shot but yhe tyre may be moving around the rim. Also check that the shock absorbers are ok.. Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 7, 2013 Author Report Share Posted October 7, 2013 Thanks mate I will do it. Rear shocks changed two years ago. Seems rock solid. Quote Link to comment Share on other sites More sharing options...
NickT Posted October 7, 2013 Report Share Posted October 7, 2013 Excuse my spelling. I have fingers like a bunch of bananas with my mobile phone..... Quote Link to comment Share on other sites More sharing options...
bojcistv Posted October 7, 2013 Author Report Share Posted October 7, 2013 Don't worry about your spelling mate. It is perfectly correct. I am not native speaker and I can just imagine how it is hilarious to you when you read my "Indian" posts . But that's the way it is. Any way I took waterproof marker and made some marks on the tire/rim. It is completely out of mind on the first site that tire could slip on the rim but my car is completely mystery for me during the last year so it wouldn't be miracle if this is happening. I will see. By the way on the back home vibs are back in full light again....completely mystery my friends.....I am freaking out with this....like I am driving USS "Enterprise" on WARP drive and I am dealing with the hyper drive issues..........unbelievable Quote Link to comment Share on other sites More sharing options...
Tony Posted October 8, 2013 Report Share Posted October 8, 2013 This is the variable i don't understand? Wheel balance/ imbalance is not something that comes and goes..... This then suggests the problem is mechanical since this can be variable, but what? Quote Link to comment Share on other sites More sharing options...
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