Oil leak from middle drive shaft

[japdeez]

Hello, I have a continuous oil dipping from the middle drive shaft when starting the engine , any one had faced and fixed this problem? I will really appreciate your helps, thanks

 

[CaptainKyle]

There is a seal around the Ujoint . I have had to replace a couple of them.

 

[japdeez]

There is a seal around the Ujoint . I have had to replace a couple of them.

Thank you, how difficult to pull out the middle drive? Any easy method I can use?

 

[maleko89]

Not bad at all, IMO. Remove rear wheel, final drive, swingarm and driveshaft. Then loosen two crankcase bolts on either side of middle output gear. Finally, remove 3 bolts holding in the gear and pull out. Watch for the shims. They need to go back. Also, one of the 3 bolts has a washer. It has to go in the same position.

Mark

 

[japdeez]

Not bad at all, IMO. Remove rear wheel, final drive, swingarm and driveshaft. Then loosen two crankcase bolts on either side of middle output gear. Finally, remove 3 bolts holding in the gear and pull out. Watch for the shims. They need to go back. Also, one of the 3 bolts has a washer. It has to go in the same position.

Mark

Thank you , you just gave me a precious help , which seal do I have to check and replace?

 

[maleko89]

Check parts 18 and 19.

https://www.ronayers.com/oemparts/a/yam/50045c11f8700209bc7942fa/middle-drive-gear

Mark

 

[japdeez]

Check parts 18 and 19.

https://www.ronayers.com/oemparts/a/yam/50045c11f8700209bc7942fa/middle-drive-gear

Mark

Thank you

 

[japdeez]

Hello, I already pulled out the middle drive, dented oil seal, now I have to pull out the drive from the housing, I checked in the internet about the process but I couldn't find any thing, do I have to hammer the ujount bolt?

 

[CaptainKyle]

Hello, I already pulled out the middle drive, dented oil seal, now I have to pull out the drive from the housing, I checked in the internet about the process but I couldn't find any thing, do I have to hammer the ujount bolt?View attachment 95866

You have to get a wrench on that nut on the yoke and have a vice or something to hold it once you get that nut off the joint will pull out and you can replace that seal. In my opinion that is the hardest part of the whole job.

 

[japdeez]

You have to get a wrench on that nut on the yoke and have a vice or something to hold it once you get that nut off the joint will pull out and you can replace that seal. In my opinion that is the hardest part of the whole job.

Thank you

 

[japdeez]

Hello everyone, I managed to pull out the ujount using tow car jack to hold the ujoint, do I have to hammer the middle drive from the housing to remove the oil seal?

 

[japdeez]

Hello everyone, I managed to pull out the ujount using tow car jack to hold the ujoint, do I have to hammer the middle drive from the housing to remove the oil seal?
View attachment 95870

Hello everyone, how to pull out the oil seal ? I will need to pull out everything from the housing? Seems difficult and need special tools

 

[CaptainKyle]

Hello everyone, how to pull out the oil seal ? I will need to pull out everything from the housing? Seems difficult and need special tools

Just just a screwdriver and work the seal out no need to pull it all apart then find a big socket to hammer it back in Evenly

 

[japdeez]

Just just a screwdriver and work the seal out no need to pull it all apart then find a big socket to hammer it back in Evenly

You mean the oring inside the dust seal? I need pull out the whole thing because it's dented as you can see in the picture, I tried with screw driver I even made a hole in tr dust seal to pull it out with a screwdriver because I'm scared I will damage the bearing inside and it doesn't work, any idea how to pull that thing with out pushing the middle gee from the housing? Thank you

 

[japdeez]

Just just a screwdriver and work the seal out no need to pull it all apart then find a big socket to hammer it back in Evenly

It was a long battle pulling off that oil seal
Thanks for your answers

 

[japdeez]

Hello everyone, any idea how to pull off those bearings from the ujoint?