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pandanom
Samba Member
Joined: March 16, 2005
Posts: 1166
Location: Lexington, S.C.
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 Posted: Mon Jul 03, 2006 6:11 pm Post subject: Transmission and RGB oil level |
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I bought a '66 bus in April of this year. I am still learning how to take care of it. I changed the lubricant in the transmission and both RGB's. In between oil changes is there any way to check the oil level to be sure it is not low?
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busded
Samba Member
Joined: April 07, 2004
Posts: 497
Location: 209, CA
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| Posted: Mon Jul 03, 2006 6:14 pm Post subject: |
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Open the filler on the side of your tranny and try to fill it. If it starts spilling out, you're full. That's pretty much the only way to check.  |
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pandanom
Samba Member
Joined: March 16, 2005
Posts: 1166
Location: Lexington, S.C.
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| Posted: Mon Jul 03, 2006 6:25 pm Post subject: |
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Thanks,
I was careful to put in the prescribed amount exactly. I added the right amt. to the RGB's first and then the 2.5 liters or 2.65 qts. to the transmission. The oil did not overflow out of the transmission but I was not level since I had the bus on a two car trailer which is a wedge design and on an angle. The rear of the bus was low. I do not see any leaks so I will do as you say later after a few miles and when the bus is level.
Thanks again
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guatebus
Samba Member
Joined: May 12, 2003
Posts: 393
Location: Oakland, CA
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| Posted: Wed Nov 24, 2021 12:05 pm Post subject: Re: Transmission and RGB oil level |
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Trying to put this question in a pre-existing thread:
Installed my new transmission (finally).
Filled RGBs with oil, filled transmission center section. Drove around a bit. Added some more oil to bring it just below the level of the fill plug.
But my oil jug is almost empty meaning I've added 3.5 liters of oil. Capacity from Bentley is more like 2.5 liters.
Is this normal? Is it overfilled now and can that cause problems?
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Eric&Barb
Samba Member
Joined: September 19, 2004
Posts: 24764
Location: Olympia Wash Rinse & Repeat
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| Posted: Wed Nov 24, 2021 1:43 pm Post subject: Re: Transmission and RGB oil level |
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| guatebus wrote: |
But my oil jug is almost empty meaning I've added 3.5 liters of oil. Capacity from Bentley is more like 2.5 liters.
Is this normal? Is it overfilled now and can that cause problems? |
If you are reading the 1963-67 bus workshop manual, read the last sentence in that paragraph again.
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| Each reduction gear case is ADDITIONALLY filled with 0.25 liters (0.53 U.S. pint, 0.44 Imp pint). |
Plus a there is a certain amount of oil trapped in the axle tubes between the RGBs and transaxle.
Takes us almost a full gallon (about 3.5 liters) to fill a completely dry bus RGB and transaxle.
Transaxle can not be over filled with the bus on flat ground. If you fill it too much the gear oil will just pour out of the fill hole till it is at proper level.
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Eric&Barb
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Joined: September 19, 2004
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Location: Olympia Wash Rinse & Repeat
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| Posted: Wed Nov 24, 2021 1:48 pm Post subject: Re: Transmission and RGB oil level |
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The below from the 1963 beetle owners manual:
Note on the right in the "Refill Requirements" 2.5 liters to fill the transaxle, and the beetle does not have RGBs.
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Lind
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Joined: November 06, 2000
Posts: 9915
Location: idaho
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| Posted: Wed Nov 24, 2021 2:01 pm Post subject: Re: Transmission and RGB oil level |
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| Eric&Barb wrote: |
| Transaxle can not be over filled with the bus on flat ground. If you fill it too much the gear oil will just pour out of the fill hole till it is at proper level. |
However, if you fill it up slowly while it is up on jackstands, you can overfill it.
If it it overfilled, it won't damage the transmission, it will just leak out of the vent hole in the nose cone and make a mess under your bus and on the back of your bus.
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guatebus
Samba Member
Joined: May 12, 2003
Posts: 393
Location: Oakland, CA
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| Posted: Wed Nov 24, 2021 5:21 pm Post subject: Re: Transmission and RGB oil level |
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OK, good to know! Thanks.
I was mostly concerned that I had put 3.5L in there but it sounds like that is relatively normal.
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