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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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 Posted: Wed Aug 07, 2024 7:06 pm Post subject: Final drive seal |
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| This might be a stupid question but I have no shame so I thought I’d post here. I’ve been putting off starting the job of replacing my drive seals. I’m estimating this is going to take me 6+ hours and with life happening outside of my bus I’m having trouble finding the time. Is this a job that should be completed once started or can I do this over a few days? Or up to a week or so? My bus is running pretty well right now and I hate to not start it up for several days. Maybe I’m overthinking this (probably) Let me know. |
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richparker
Samba Member
Joined: November 24, 2011
Posts: 7489
Location: Durango, CO
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| Posted: Wed Aug 07, 2024 9:46 pm Post subject: Re: Final drive seal |
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I just did the passenger one on my bus, pretty easy job. I watched a couple of YouTube videos and read some threads about it first. I think your over estimating the time buy a lot. I bet you could do both sides in 3 hours or less.
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52262
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| Posted: Wed Aug 07, 2024 10:07 pm Post subject: Re: Final drive seal |
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| Globedog12 wrote: |
| This might be a stupid question but I have no shame so I thought I’d post here. I’ve been putting off starting the job of replacing my drive seals. I’m estimating this is going to take me 6+ hours and with life happening outside of my bus I’m having trouble finding the time. Is this a job that should be completed once started or can I do this over a few days? Or up to a week or so? My bus is running pretty well right now and I hate to not start it up for several days. Maybe I’m overthinking this (probably) Let me know. |
How long has it been since you regreased your CV joints? Good time to do them if you are going to be messing in that area anyway. The seals themselves are not hard to change, but having the correct tools helps: a long allen adapter or triple square as required for your CV bolts, YOU MAY ACTUALLY NEED BOTH IF YOU HAVE A MIX OF BOLT STYLES, a decent seal puller, and a set of duck bill snapring pliars for a manual tranny or the correct size allen adapter for an automatic. |
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airschooled
Air-Schooled
Joined: April 04, 2012
Posts: 13464
Location: West Coast, USA
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| Posted: Wed Aug 07, 2024 10:15 pm Post subject: Re: Final drive seal |
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You have to check the gear oil level anyway, and probably top up a bit. Don’t sideline the bus for a small leak. If it’s huge, take a whole day and enjoy the job. If it’s a small leak, like a quarter or less size on the ground, drive it until convenience overcomes the worry.
Robbie
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Wed Aug 07, 2024 11:12 pm Post subject: Re: Final drive seal |
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I was very fortunate to have been gifted the special tool by our friend Bigbore a couple years back. Very nice of him.
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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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| Posted: Thu Aug 08, 2024 6:38 am Post subject: Re: Final drive seal |
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| aeromech wrote: |
| I was very fortunate to have been gifted the special tool by our friend Bigbore a couple years back. Very nice of him. |
Care to elaborate? |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 6:45 am Post subject: Re: Final drive seal |
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| Globedog12 wrote: |
| aeromech wrote: |
| I was very fortunate to have been gifted the special tool by our friend Bigbore a couple years back. Very nice of him. |
Care to elaborate? |
Do you want a picture or a step by step on the job?
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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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| Posted: Thu Aug 08, 2024 6:54 am Post subject: Re: Final drive seal |
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| aeromech wrote: |
| Globedog12 wrote: |
| aeromech wrote: |
| I was very fortunate to have been gifted the special tool by our friend Bigbore a couple years back. Very nice of him. |
Care to elaborate? |
Do you want a picture or a step by step on the job? |
Just a picture. I don’t need a step by step I’m just curious about the special tool. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 7:09 am Post subject: Re: Final drive seal |
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| Globedog12 wrote: |
| aeromech wrote: |
| Globedog12 wrote: |
| aeromech wrote: |
| I was very fortunate to have been gifted the special tool by our friend Bigbore a couple years back. Very nice of him. |
Care to elaborate? |
Do you want a picture or a step by step on the job? |
Just a picture. I don’t need a step by step I’m just curious about the special tool. |
It’s early here but I’ll get that done this morning
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 11:50 am Post subject: Re: Final drive seal |
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Here ya go
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 23088
Location: Oklahoma City
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| Posted: Thu Aug 08, 2024 11:58 am Post subject: Re: Final drive seal |
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Very nice to have. I made q crappy but functional version with a piece of steel plate and an angle grinder and a little welding.
Ray |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52262
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| Posted: Thu Aug 08, 2024 12:46 pm Post subject: Re: Final drive seal |
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You really don't need that tool to do the job though, as the seal can be replaced easily without removing the adjusting nut, one just needs a decent seal puller.
If you do need a tool to remove the adjusting nut, they are easy enough to make.
If one does choose to remove the nut, punch marking the position of the adjusting nut before beginning to remove it is a must. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 1:17 pm Post subject: Re: Final drive seal |
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Mike,
If I remember right there's a big o-ring too
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Boeing 727,737-200-300-400,757,767
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DC9/MD80
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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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| Posted: Thu Aug 08, 2024 2:38 pm Post subject: Re: Final drive seal |
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| That is a nice tool |
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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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| Posted: Thu Aug 08, 2024 2:40 pm Post subject: Re: Final drive seal |
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| Wildthings wrote: |
You really don't need that tool to do the job though, as the seal can be replaced easily without removing the adjusting nut, one just needs a decent seal puller.
If you do need a tool to remove the adjusting nut, they are easy enough to make.
If one does choose to remove the nut, punch marking the position of the adjusting nut before beginning to remove it is a must. |
I’m hoping I can get the seal out with a puller to avoid screwing with the adjusting nut. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 3:08 pm Post subject: Re: Final drive seal |
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If I coulda, I woulda. I removed the “nut” and using a hammer and my concrete floor, banged them out and in. I marked the nut location prior to removing
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VW Type 2 1971 (3 ea.) 1978, 1969
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 52262
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| Posted: Thu Aug 08, 2024 3:43 pm Post subject: Re: Final drive seal |
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| aeromech wrote: |
Mike,
If I remember right there's a big o-ring too |
Yes there is a big o-ring, but they seem to be able to last through a life of several hundred thousand miles of use or twenty years of sitting, at least in my climate. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 4:44 pm Post subject: Re: Final drive seal |
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It came in the kit so I changed it. I tried to just remove the oil seal but even using my snap on puller, I couldn’t without pulling the “nut” and at that point the oring is acceptable easily.
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Boeing 727,737-200-300-400,757,767
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DC9/MD80
BAe146
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Globedog12
Samba Member
Joined: April 11, 2024
Posts: 173
Location: Atlanta, GA
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| Posted: Thu Aug 08, 2024 5:37 pm Post subject: Re: Final drive seal |
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Do I need to put any lube on the outer edge of the new seal to assist in installation? Cv grease, silicone grease?
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 17612
Location: San Diego, California
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| Posted: Thu Aug 08, 2024 6:08 pm Post subject: Re: Final drive seal |
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Absolutely. Always lubricate o-rings when installing. What you use isn’t as important as not leaving it dry
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Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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