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| PD lower knuckle https://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=53462 |
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| Author: | ha2 [ Fri May 23, 2014 5:38 pm ] |
| Post subject: | PD lower knuckle |
Is there a vent on the lower knuckle gearbox? I change oil this spring and checked it after fishing today and when i pulled the plug gearbox had pressure in it and i lost quite a bit of oil and I know i didn't over fill it when i change it. |
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| Author: | ha2 [ Fri May 23, 2014 8:37 pm ] |
| Post subject: | Re: PD lower knuckle |
no one knows if theres a vent for the gearbox that goes up through the tower? I been dearching old threads for the past 3 hrs looking for this answer. Thought i've seen pics before where people have had gear oil come out up by the clutch. |
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| Author: | OwenDickeson [ Sat May 24, 2014 11:18 am ] |
| Post subject: | Re: PD lower knuckle |
Yes some of them were vented. |
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| Author: | ha2 [ Sat May 24, 2014 4:21 pm ] |
| Post subject: | Re: PD lower knuckle |
You know what years they were vented? Mines a 12. And also where the vent is located so I could see it mines maybe plugged. |
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| Author: | banded-mallard [ Tue May 27, 2014 7:55 am ] |
| Post subject: | Re: PD lower knuckle |
| Author: | Will [ Tue May 27, 2014 8:22 am ] |
| Post subject: | Re: PD lower knuckle |
It's best not to have a vent and chances are yours does not, they went to no vent. I'd say it would be fine to have a little positive pressure, will help keep water out. Was it cold when you changed it and then hot now? Thermal expansion? You will be fine as long as there's no water in the oil. |
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| Author: | ha2 [ Tue May 27, 2014 2:55 pm ] |
| Post subject: | Re: PD lower knuckle |
Yes it was cold I did it late this winter and I'm from iowa so that probably explains it. I noticed knuckle seemed hot too before I drained some of the oil out probally hot because I ran it to full? |
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| Author: | Will [ Tue May 27, 2014 3:33 pm ] |
| Post subject: | Re: PD lower knuckle |
Nahh, its like the differential on your truck, gonna build some heat. |
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