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| GV SQ420 loud whining in all gears except 4th https://auszookers.com/forum/viewtopic.php?f=5&t=50858 |
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| Author: | aaronstevens [ Sun Aug 23, 2015 9:21 am ] |
| Post subject: | GV SQ420 loud whining in all gears except 4th |
G'day guys I have a loud buzzing/whining in all my gears except 4th gear , also had some leaking transfer case oil that I have been topping up , anyone got any idea what the problem is ? |
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| Author: | fordem [ Sun Aug 23, 2015 11:37 am ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Probably a worn bearing in the transmission - input shaft would be my guess - fourth gear is a "direct drive" so the input shaft will also be supported by the selector hub behind it, in the remaining gears that does not happen. |
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| Author: | henno [ Sun Aug 23, 2015 12:24 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Fordem is on the money, as usual. That will be exactly what it is. |
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| Author: | watermouse [ Sun Aug 23, 2015 1:10 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Yep, Here is a great video that says that same thing and goes into the overhaul of a suzuki manual gearbox. |
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| Author: | Flx11e [ Sun Aug 23, 2015 2:30 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Check the layshaft bearings. |
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| Author: | fordem [ Sun Aug 23, 2015 11:45 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Layshaft bearings are a possibility - there is no load on the layshaft in fourth gear - it's just that the input shaft bearing is a fairly common failure... Truth be told, I wouldn't pull down the transmission to change just one bearing - if I go in there, I'll be changing all the bearings and seals - I actually have done it once, I had the input shaft bearing fail about six months after a rebuild, so I changed that one alone, but in situations where the condition of the bearings is unknown, it doesn't make sense to put that much effort into the repair for one bearing, you're going to end up pulling it apart again. Here's a hint - make sure the vehicle is level when you refill the transmission after a rebuild - I have no proof, but I strongly suspect that was the cause of the premature failure mentioned above. |
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| Author: | aaronstevens [ Mon Aug 24, 2015 1:35 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Okay sweet , thanks for all the info ! |
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| Author: | aaronstevens [ Mon Aug 24, 2015 6:25 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Would it be cheaper for me to just buy a whole new gearbox, I got quoted $2200 for it to be refurbished . |
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| Author: | fordem [ Mon Aug 24, 2015 11:47 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
That might be a personal decision. Can you find a "whole NEW gearbox"? At what price?? If you really mean a used gearbox, do you actually know what you're getting, and how long before you end up back where you are now, or in a worse position? |
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| Author: | aaronstevens [ Wed Aug 26, 2015 4:49 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Will a short wheel base j20a manual 98 gearbox fit my long wheel base j20a manual 98 ? |
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| Author: | Gwagensteve [ Wed Aug 26, 2015 4:51 pm ] |
| Post subject: | Re: GV SQ420 loud whining in all gears except 4th |
Yes.. |
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