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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Sun Apr 20, 2014 11:31 am |
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Worth replacing? I'm thinking yes.   Should I also replace the needle bearings?
_________________ Quote: I like the tuna here
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greyghost
Joined: Sat Oct 13, 2012 1:23 pm Posts: 189 Location: VIC
Vehicle: LJ50V 2 stroke
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 Posted: Sun Apr 20, 2014 11:39 am |
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without a doubt replace both the shaft and bearings
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jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
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 Posted: Sun Apr 20, 2014 12:02 pm |
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What is the inside of the counter like?
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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Sun Apr 20, 2014 12:19 pm |
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_________________ Quote: I like the tuna here
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JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
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 Posted: Tue Apr 22, 2014 1:46 pm |
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Counter gear looks like it has damage too. What gear set is that from? Stock?
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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Tue Apr 22, 2014 1:48 pm |
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6.5s.
_________________ Quote: I like the tuna here
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jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
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 Posted: Tue Apr 22, 2014 2:30 pm |
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How many km? As above the counter gear looks a little worn, the worst areas should be close to the outside of the counter, how does it feel on a finger nail?
How worn were the brass thrust washers?
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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Tue Apr 22, 2014 3:04 pm |
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Under 10K, The only part noticeable (not greatly) to the finger nail is the change from where is doesn't look worn to were the lines start on that top pic, On the outside.   I only used the shim that came out of the case when the gears went in. Noob move on my behalf but the TG instructions that came with the gears didn't mention it nor did the Drover FSM from http://www.suzukiinfo.com/ I now realise it should have been done. Let me know if you need any more info or pics.
_________________ Quote: I like the tuna here
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jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
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 Posted: Tue Apr 22, 2014 5:50 pm |
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If there is no noticeable step i.e. very little material removed, id say its normal wear and tear. New needle bearings, thrust washers, counter shaft and put it back together, and it should be fine.
How much meat is worn out of the worst thrust washer?
Ive done a tiny bit of reseach into xfer cases etc. From some torque loading calcs, changing the gears changes the leverage on counter gears, which increases the loads on the needle bearings and surface faces (for the bearings) of the counter shaft and counter gear. Which means these wear out quicker, how much quicker im not really sure, at this stage. There is very little information on it and I dont think anyone has really looked into it.
The counter gear is a wear and tear item, and is the only component that can not be replaced easily. This means all gears will fail eventually (the lifetime warranty on 6.5s from LROR is very valueable).
The only way to prolong the life of a gearset is to inspect and/or replace the thrust washers and counter shaft and needle bearings on a regular interval. The interval should be shorter than regular stock components, because the loading is a lot higher.
Unfortunately it's going to be trial and error for us to get a better understanding of sensible service intervals for aftermarket gears. Aftermarket gears are an investment and worth protecting, and will take some effort from others to try and develop a better understanding.
Once you get it back together, can you check the backlash in high and low.
I wish everyone would check backlash of their cases, listing backlash, gear ratio and km done.
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Teracis
Joined: Sat Dec 11, 2010 10:03 pm Posts: 2261 Location: Gold Coast
Vehicle: Daisy
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 Posted: Tue Apr 22, 2014 6:37 pm |
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I can check the backlash in my case with 6.5's tomorrow afternoon but you're only going to get a rough measurement from me as all I'll be able to do is measure the flange movement when holding the input flange still, by measure I mean measure the amount of rotation at the edge of the flange with a tape measure by drawing a line on it.
Is there a better suggestion?
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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Tue Apr 22, 2014 7:28 pm |
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jdk81 wrote: If there is no noticeable step i.e. very little material removed, id say its normal wear and tear. New needle bearings, thrust washers, counter shaft and put it back together, and it should be fine. I can't feel a step, Only a difference in the 2 surfaces, If you get what I mean. jdk81 wrote: How much meat is worn out of the worst thrust washer?
Photo makes it look worse than it is  Does anyone know if the needle bearings are going to be easy to get a hold of? Are they a common size?
_________________ Quote: I like the tuna here
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jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
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 Posted: Tue Apr 22, 2014 8:33 pm |
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Blkfxx

az supporter
Joined: Sat Feb 04, 2012 7:11 pm Posts: 1105 Location: Oberon, NSW
Vehicle: Drover pickup turk
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 Posted: Tue Apr 22, 2014 8:57 pm |
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Already have new thrust washers and I've got a counter shaft on the way, Just need bearings. :/
_________________ Quote: I like the tuna here
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Daves4wd

az supporter
Joined: Fri Aug 26, 2011 3:17 pm Posts: 1286 Location: Melbourne
Vehicle: Swb Sierra twin lock 32s 6.5s
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 Posted: Tue Apr 22, 2014 9:15 pm |
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Message 4wdproducts on eBay he sells genuine needle bearings. I bought his rebuild kit and the only bad thing in it was the input output seals
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