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Post by ronnie on Sept 15, 2011 10:05:21 GMT 2
Hi All I tried a balance washer on the doughnut today and do not really think it made much difference. However the very small amount of vibration at certain speeds is acceptable after fighting for month after month and getting nowhere. For the record here is a picture of the mounting after the small mod. Ronnie Attachments:
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Post by marius on Sept 15, 2011 11:19:12 GMT 2
Aligning the transfer case and the intermediate shaft is a good place to start - esp if you detect the "dancing" sticks. If you can get the CV on the intermediate shaft to run straight without any detectable wobble you probably have solved most if not all of your vibration issues.
Marius
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Post by ronnie on Sept 15, 2011 13:13:07 GMT 2
Hi Marius Believe it or not, I fully agree with you Ronnie
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Post by marius on Sept 15, 2011 17:49:59 GMT 2
Hi Ronnie ;D ;D ;D I am just surprised it took you so long Marius
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90ladaniva
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Post by 90ladaniva on Sept 17, 2011 14:07:31 GMT 2
Hi Guys ,I was lying under the Niva today with the motor running and doughnut turning, and noticed the doughnut had a wobble in it ,so tomorrow i will investigate Further i think ,and my trasfer case is Half way in the adjustment slots .My Niva still has a slight vibration on take off as the load increases then dissapeares till i get to 90 then starts again .So yes will wait and see what tomorrow brings i think .Cheers Lads .Trev .
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Post by Charles on Sept 17, 2011 14:16:37 GMT 2
My niva has no vibration untill I reach 100km/h then I can feel it running up my seat. Tc and gearbox balanced by eye. Well actually they were just put in and tightened. So will balance it sometime and see it there is a difference.
Charles
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Post by ronnie on Sept 18, 2011 8:49:40 GMT 2
Hi Charles
I hope you manage to get rid of all your vibrations quicker than me ;D
Ronnie
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Post by marius on Sept 18, 2011 10:18:14 GMT 2
I think it is fairly "normal" for a Niva to have some vibration at around 110km/h - however it should never be excessive. The probable cause of this particular vibration may well be the amount of play on the rear bearing on the TC. This vibration normally disappears from around 115km/h. I find that a bit of fresh grease every now and then in the UJoints on the rear prop shaft, smooths things out quite considerably.
Marius
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Post by ronnie on Sept 18, 2011 12:34:00 GMT 2
Hi Marius
AGAIN I completely AGREE with you, the rear output bearing on the TC is the prime suspect.
Ronnie
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Post by Charles on Sept 18, 2011 19:31:00 GMT 2
Will see at what speed the vibration goes away again. Aligned my tc today so hopefully it will make a difference.
Charles
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ladanivabelgium
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Post by ladanivabelgium on Sept 19, 2011 5:46:31 GMT 2
yesterday i renewed the bearings of the input shaft. There was a play of +-3-4mm. Vibrations at start (levers moving around) are gone now. Just a very little vibration at +-70 km/h, which is very acceptable
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90ladaniva
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Post by 90ladaniva on Sept 19, 2011 16:57:12 GMT 2
Hi guys ,Well today i spent the best part of the day looking for the cause of my viration mainly on exceleration and also around 90 Kilometres an hour .Well after looking and measuring and testing all day I think I may have [Repeat May have Found my Problem .After reading all the info on this Forum regarding Vibrations in our Nivas it seems to me that one could count the number of people that own a totaly vibe free niva on one hand .And it seems to me that we all are trying the same things over and over again but no one has realy stopped these rotton vibes all together yet that i know of .So i Have decided to try something totaly different this time and to my knowlege this has not been tried by anyone and if it has it has not been put on the forum yet .So tomorrow i am going to put my Plan to the test and see if i can stop this rechard vibe prob of mine once and for all .I am hopping if this works it will be a definate try for other Lada owners .So i wont say to much about it now till i try it and see what happens then if it works great i will post [how to pics ] for you Guys to check out .Just dont hold your breath Lads as things can all ways go Pear shape at the End of all this and it can all go wrong and come to nothing and is only experimental at this stage .Cheers Trev .
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Post by marius on Sept 19, 2011 18:13:51 GMT 2
Hi Trevor Very much looking forward to your reply Marius
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Post by ronnie on Sept 19, 2011 18:55:55 GMT 2
Hi Trev You have my sympathy, as vibration is the one thing guaranteed to drive you insane. The only thing so far which has made a big difference was making sure the TC mountings were in the centre of the slots. All the other hours spent underneath were in vane. I wait with bated breath for your fix. Ronnie
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Post by spikes on Sept 19, 2011 19:22:38 GMT 2
Hi Trevor There is one solution that really works for me..STAY off the TAR roads. Hit the gravel and you will not feel or hear any vibrations. Cheers Spikes
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Post by Ari Bezuidenhout on Sept 19, 2011 19:49:03 GMT 2
;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D
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ladanivabelgium
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Post by ladanivabelgium on Sept 19, 2011 20:18:54 GMT 2
Trev, i think i know what you will try to do. if i'm wright: it could work, it sometimes dous. We'll see tomorrow if i was wright. BTW: i have a vibration free niva diesel now. I made a little movie from a drive. I'll try to get it online [edit] it worked first movie i made myself while driving, the second one is made by my son on the passenger seat. (with phone upside down ) first one is start at 0 km/h and at 70 km/h View My Videothe second one is from 0 km/h to +- 90 km/h View My Videovery happy ;D , niva is vibration free once more
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Post by hotstuff on Sept 20, 2011 8:40:19 GMT 2
hi guys just remember lining up your tc involes both x & y axis....the 122 mm gap and the shims for spacing
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Post by hotstuff on Sept 20, 2011 8:51:10 GMT 2
TRYING TO UPLOAD IMAGE AND INFO BUT NO LUCK AT YET WILL DO SO AS SOON AS POSSIBLE CHAPS REGARDS MIKE
PS ALSO MAKE SURE YOU HAVE BALANCED BOTH PROP SHAFTS AS WELL
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Post by hotstuff on Sept 20, 2011 9:07:26 GMT 2
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90ladaniva
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Post by 90ladaniva on Sept 21, 2011 5:30:06 GMT 2
Hi Guys ,Well after Dismantling and dropping the Transfer case out i found a series of unwanted Problems so before i can proceed any further i need to wait for parts that i have ordered to arrive . So will let you know the results as soon as i reasemble the whole thing .Cheers Guys .Trev .
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ladanivabelgium
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Post by ladanivabelgium on Sept 21, 2011 8:04:27 GMT 2
succes!
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Post by hotstuff on Sept 21, 2011 8:48:05 GMT 2
well i hope the information i gave will help all you struggling with the vibration. all the ladas i work on now do not have any vibration at all. so good luck and have fun regards mike
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Post by ronnie on Sept 21, 2011 9:14:27 GMT 2
Hi Mike
This is what I have been saying, if everything is right there should be no vibration and no need for any fancy brackets or anything else. The big secret is being able to find the problem, and this is not always so easy. I know from experience.
Ronnie
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Post by ronnie on Sept 22, 2011 18:32:49 GMT 2
It would seem the problem of the T/C running out of adjustment is more widespread than I thought. I was on the Aussie forum earlier and Trevor (the big one ) was looking for a spacer to go between the intermediate shaft and the T/C input shaft to give more adjustment. The picture he posted looks like a factory part complete with the recessed portion for alignment. I have asked where they are obtainable from.
Ronnie
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Post by ronnie on Sept 23, 2011 15:05:43 GMT 2
Hi All Here is a picture of the spacer Trevor used in Australia to space the TC so it was in the centre of the mounting slots. Ronnie Attachments:
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90ladaniva
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Post by 90ladaniva on Sept 23, 2011 16:27:51 GMT 2
Hi Ronnie,It seems i will need at least 2 of these rings to get the adjustment that i need to get the slots to half of the slide mark .As they are only 2mm Thick.They are proving very hard to find over here mate Cheers Trev .
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Post by ronnie on Sept 23, 2011 18:29:16 GMT 2
Hi Trevor
I have never heard of them this side of the water. We will see what happens when our members see the photo.
Ronnie
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90ladaniva
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Post by 90ladaniva on Sept 25, 2011 17:00:08 GMT 2
Hi Guys ,Well as you all know i have been trying an experiment on my transfer case to try and fix my vibrations in my niva .So first of all i tried driving the car with only the front prop shaft connected and worked out where exactly the vibrating started and stopped and it seems as when you were exelerating under load and all so around the 90 kilometres an hour mark.The reason i started on one prop shaft is to do phase one of the task first and fix the whole front drive and transfer box drive first .Well after the inspection last week i decided to do two small modifications to the transfer box mountings and after doing a test run today i am over the moon as the modification i done was a total success and all the vibs are gone totaly .No more vibrating under load .No vibrations from start of to 115 kilometres an hour after that i dont know what happens so now to phase two of this modification which will involve fitting the rear propshaft and test driving first .By doing it in two stages i now know that the front is perfect including the transfer case aligment .Now if there is vibes now it will either be my rear T/C Bearing or my rear prop shaft out of balance or probs in the uni joints area .Which narrows it right down but im pretty sure when i test run now with rear prop on i dont think i will have a problem .So when phase two is commplete and tested i will let you know the full out come and what i did to acheive this outcome incase others would like to try it on there Nivas as it is a very simple modification and involves no fancy braces and no welding and all that stuff .So will do the test tomorrow and report back soon .Cheers Trev .
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Post by danie on Sept 25, 2011 18:21:25 GMT 2
Sounds very promising Trev - looking forward to your report.
Regards
Danie
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