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Post by ronnie on May 20, 2011 19:23:19 GMT 2
Hi Spikes
I agree 100%
Ronnie
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Post by Charles on May 20, 2011 19:27:27 GMT 2
Will get prices on new ones monday. anyone else intrested in the price of SKF bearings.
Charles
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spikes
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Post by spikes on May 20, 2011 19:30:55 GMT 2
Hi Charles Yes, I think we will all like to have an indication and measure to evaluate against Regards Spikes
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darryn
Veteran Niva Petrol Head
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Post by darryn on May 21, 2011 7:45:57 GMT 2
Hey Charles and Ari- when is Charles coming up here? Would be nice to meet you both for a beer, and a play date for the Nivas.
Darryn.
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Post by danie on May 21, 2011 8:21:35 GMT 2
Hi Charles
Bearing Man do sell an electronic detector which can be used to trace faulty bearings - but if I remember correctly, the price of that detector is more than R10 000.
The only way for us poor souls to determine whether a bearing is worn, is to separate the outer bearing ring from the roller part, and to have a close look at the condition of the components.
The inside of the outer ring (flat surface which gets in contact of the rollers) needs a very close look. It might already be worn, while the rollers might still be looking in good condition.
Just look for any signs of wear on the outer ring (slightly / heavily pitted, grooves, etc.) and replace if the surface is not 100% perfect. Pitted outer rings might still be feeling "smooth" by hand - but a good magnifying glass usually indicates bad news !
Warn bearings do cause overheating problems as well.
Danie
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Post by Charles on May 21, 2011 8:49:33 GMT 2
If the bearings are not too expensive I will replace all of them.
Charles
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Post by Ari Bezuidenhout on May 21, 2011 9:18:39 GMT 2
Hi Charles
Can save you some trouble. The box we are taking out has had all it bearings replaced with local ones already (8 years ago). If we open that one you will maybe be able to see the names and numbers on them.
Ari
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Post by Ari Bezuidenhout on May 21, 2011 9:19:13 GMT 2
Hey Charles and Ari- when is Charles coming up here? Would be nice to meet you both for a beer, and a play date for the Nivas. Darryn. From the 1st to the 5th of june Ari
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Post by Charles on May 21, 2011 9:25:41 GMT 2
Ari that will be great. Danie posted the numbers on the first page. I would just like to confirm. I'm curious to strip you box to see where your 5th gear had gone to.
Charles
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Post by Ari Bezuidenhout on May 21, 2011 10:17:30 GMT 2
I think it is the selector mechinism only. We'll see how it goes. Will rebuild it next year and then swap the boxes again to rebuild the one we are putting in. Then I know both are 100%
Ari
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Post by Charles on May 21, 2011 12:44:53 GMT 2
Will help you rebuild them next year.
Charles
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Post by Ari Bezuidenhout on May 21, 2011 12:52:02 GMT 2
Sweet thanks
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Post by Charles on May 21, 2011 12:58:38 GMT 2
Your current box is it noisy?
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Post by Ari Bezuidenhout on May 21, 2011 13:08:51 GMT 2
Not really why?
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Post by Charles on May 21, 2011 14:09:25 GMT 2
Just curious. Maybe we can fix it aswell thursday.
Charles
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Post by Ari Bezuidenhout on May 21, 2011 14:26:59 GMT 2
Maybe . . . that would be nice. Still want to rebuild it with new bearings etc next year.
Ari
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Post by Charles on May 21, 2011 15:59:09 GMT 2
Then we do that aswell.
Charles
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vincentc
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Post by vincentc on May 21, 2011 19:34:04 GMT 2
A point to ponder with components like gearboxes and diffs. In the industrial field we do regular oil samples. This is especially effective when the oil is changes ONLY when the analysis report says to do so. The advantage with sampling is that they can assist with guaging the condition of components which will help with determining whether to repair or not. A sample analysis by Spectra-Care is about R80 for scheduled and R110 for once off samples
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vincentc
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Post by vincentc on May 21, 2011 19:40:07 GMT 2
Remember too that noisy gearboxes can also be caused be poor quality lubes. Remember to use the best quality you can possibly afford. Cheap oils are never going to save you money in a Niva
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Post by Charles on May 21, 2011 19:43:07 GMT 2
Vincent how often do you think one should change drivetrain oils? At work we change fiff oil every 60 000km and diff oil every 90 oookm.
Charles
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Post by danie on Aug 7, 2011 19:57:23 GMT 2
Hi Vincent
Have you got an infrared thermometer to take heat readings on a Lada's gearbox ?
It would obviously be very informative and interesting to get heat readings on a Lada's gearbox at different speed - specially if the readings and findings are recorded by an oil expert.
Part of the reason for my question - on high pressure pumps (with only two bearings ) the oil temperature usually reaches more than 70 deg C in less than 5 minutes, when the two bearings are worn.
The Lada gearbox has more than twice the number of bearings than on a high pressure pump - therefore I assume the 90 deg limit can easily be reached on a Lada, specially if the bearings and gears be worn.
And don't forget - aluminum do have excellent heat transferring properties, and to a certain extend engine heat does get transferred to the Gearbox via the Bellhousing - and vise versa.
Danie
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butasteve
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Post by butasteve on Aug 8, 2011 11:45:25 GMT 2
Danie/Marius/Ronnie/Vincent Good morning Gentlemen.
I've read with great interest your discussion about Fiat 124/125 GB v Lada Niva GB relationship; Now a Simple question: Will an unmodified Fiat GB fit in a Lada?; because If it does, I'll try and source a 5-speed GB to install in our Lada. The rev's is so much lower @ 120KM/H in Pieter's Lada.
Regards Stephen
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Post by ronnie on Aug 8, 2011 12:13:11 GMT 2
Hi Stephen
I can`t remember if the boxes are exactly the same length or not. Danie will know better on this one.
Ronnie
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Post by marius on Aug 8, 2011 12:23:24 GMT 2
Hi Stephen
They are most probably very much the same - however if I remember correctly Jan used to fit the internals of the Fiat (4 speed) into the Niva box. I think he also did the same with some Audi components?
I have unfortunately no idea which Audi.
Marius
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Post by ronnie on Aug 8, 2011 12:23:45 GMT 2
Hi Stephen
I have just checked, and the Fiat gearbox is 90 mm longer than the Niva.
Ronnie
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Post by ronnie on Aug 8, 2011 12:26:04 GMT 2
Hi Stephen
If the fiat gearbox is 90mm longer there must be some parts which will not fit in the Niva.
Ronnie
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Post by danie on Aug 8, 2011 18:19:04 GMT 2
Hi Stephen Don't worry about the length of the Fiat Gearbox. If the gearbox looks like this, the gears will fit: Regards Danie
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Post by marius on Aug 9, 2011 8:20:59 GMT 2
Hi Danie
I don't think we are trying to "soft soap" anything. The only thing we are trying to do is to give advise and assistance to other members from the little knowledge and experienced we gained over the last couple of years.
Opinions might differ as we may experience things differently but I believe it is all done and said in perfect honesty. I honestly don't think we are trying to con people into thinking that the Lada is a perfect car with no faults and I would have to say there is no such thing as a perfect car AND there is very little we can do to increase membership number as you indicated.
Now, as far as the 5 speed gearbox goes. The MAIN issue has always been the nut on the end of the output shaft. That is about the only thing "unreliable" on the gearbox. By now we all know how to solve that problem.
Over a period of 11 years I have replaced one bearing in the gearbox - the needle bearing. There was not much wrong with that bearing either - I still keep it as an emergency spare.
The other bearings I have replaced so far was the clutch release bearing and the little bearing on the input shaft. Both these replaced bearings are still in perfect condition. I think that should say something about the quality of the Russian/USSR bearings.
This may well be my own experience, but at least it is honest. Don't try and twist it into something that it's not.
Marius
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Post by ronnie on Aug 9, 2011 9:43:28 GMT 2
Hi Marius
I think you have proved your Niva has been a reliable means of transport over the last 11 years. No matter what the make regular maintenance pays dividends.
Ronnie
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Post by danie on Aug 9, 2011 11:54:52 GMT 2
Just some further info regarding the Fiat Gear swap to the Supercharged Lada Gearbox:
Without wasting time on detail about a deal between the owner of the Supercharged Lada and myself - The Gearbox at the pic above belonged to myself before, but this is some info about the gear swap to the Lada Gearbox:
1. The center Fiat gearbox Housing is exactly the same as the Housing on the Lada Gearbox. Even the bottom Housing Cover of the Fiat's Housing fits to the Lada Housing.
2. The "main" shafts on both Gearboxes are an exact match. On the "Supercharger Gearbox Mod" , a Lada shaft has been used on the Fiat Gears. (Because the Output Flange end ( Tip) of the original Fiat shaft has previously been cut off to fit a modified Universal joint Coupler).
3. The Back end Covers on the Gearboxes are different from each other, although both back end Covers fits directly to the different Housings without any modification.
4. On the "Supercharger mod", the owner has decided to use all Fiat Gears and Bearings on his Lada's Gearbox Housing.
5. The Shifter Rods on the Fiat Gearbox are different from the Lada's Shifters, and cannot be used on the Lada's Gearbox.
6. But this is the "trick" - a special Bush has to be machined to be mounted at the back end of the Lada back end Cover - although the back end Cover does not need any modification to mount the Bush.
At this stage I do not have any specific details about the Bush itself - I started "hunting" another Fiat gearbox for myself, and hope to do this modification myself in the near future.
In the meanwhile I would advice anyone who might be interested in a modification like this, to get a Fiat gearbox, and to contact the guy at Franco Motors.
Danie
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