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Hello - I have 117,000 miles on my XC70. The car drives great but the dealer informed me that the bevel gear was "leaking" again. The dealer resealed it at about 80,000 miles and about $800 of expense. They now say it is leaking again and want $2400 to replace the unit. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0"> needless to say, I would consider that a last resort.<p>I went to a highly recommended transmission shop. We looked at it yesterday and the lubricant in the differential seems to be a lower viscosity (more like motor oil) whereas I was expecting something more like a gear lube to ooze out.<p>1. What is the recommended fluid and change interval?<br>2. Is there a resealing kit available?<br>3. Is a bevel gear reseal something that I could do on my own?<br>(I'm not a mechanic but have rebuilt several motors and replaced transmissions before on slightly older and less high-tech vehicles)<br>4. Is there a good source for a rebuilt bevel gear unit or other option?<br>(I am not interested in converting to FWD)<p>This potential expenses and the probability that I will have to rebuild the automatic transmission within the next year or 2 (slight slip in very cold weather and occasional sloppy shifts) is making me seriously consider getting rid of this car.
 

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Re: 2002 XC70 - Bevel Gear questions (amar2848)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>amar2848</b> »</i></TD></TR><TR><TD CLASS="quote">Hello - I have 117,000 miles on my XC70. The car drives great but the dealer informed me that the bevel gear was "leaking" again. The dealer resealed it at about 80,000 miles and about $800 of expense. They now say it is leaking again and want $2400 to replace the unit. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0"> needless to say, I would consider that a last resort.<p><B>Rediculous, have it resealed PROPERLY</B><p>I went to a highly recommended transmission shop. We looked at it yesterday and the lubricant in the differential seems to be a lower viscosity (more like motor oil) whereas I was expecting something more like a gear lube to ooze out.<p>1. What is the recommended fluid and change interval?<br>2. <U> Is there a resealing kit available?</U><br><B>NO</B><p>3. Is a bevel gear reseal something that I could do on my own?<p><B>ONLY IF YOU'RE A VERY GOOD MECHANIC<p>"The bevel gear housing leaking is an extremely common issue for which there is a TSB from Volvo. The repair involves removing the unit, disassembling it, and <U>filing a chamfer on the inside edges of the two halves of the unit</U>, and then resealing it".<br></B><br>(I'm not a mechanic but have rebuilt several motors and replaced transmissions before on slightly older and less high-tech vehicles)<br>4. Is there a good source for a rebuilt bevel gear unit or other option?<br>(I am not interested in converting to FWD)<p><B>AGAIN, YOU NEED TO HAVE SOMEONE <U>WHO KNOWS WHAT THEY'RE DOING </U>RESEAL IT. IT'S A SPECIFIC PROCESS THAT MUST BE FOLLOWED</B><p>This potential expenses and the probability that I will have to rebuild the automatic transmission within the next year or 2 (slight slip in very cold weather and occasional sloppy shifts) is making me seriously consider getting rid of this car.<p><B>THERE MAY BE 3-4 PEOPLE IN THE US THAT CAN REBUILD THESE PROPERLY<br><B><br><U>AND YOU ARE IN THE WRONG FORUM</U></B></B><p><br></TD></TR></TABLE>
 

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The Volvo oil for the Bevel Gear is:<br>Synthetic 75w90 API GL 5 Gear Oil as per the Volvo bottle itself.<p>Royal Purple and Redline both make a gear oil that has those exact specs as well but I've always used the Volvo stuff personally in this particular part.<p>CJ Yother on here offers a rebuilding service for $650 I believe and he's a highly recommended person in the Volvo enthusiast world.<p>Your dealership should own up to fixing this properly but having it resealed is preferable to spending $2400 I imagine (by the way, that price is way out of line for just an angle gear).<p>Also, when they do re-seal it, have them install part number 8689527-3 "bleeder nipple" and 30681138-1 "filter" to allow the gear to bleed off pressure as it heats up. It will make it last longer and is easy to do. Those 2 parts cost $8 together.
 

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Re: (Big Will)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Big Will</b> »</i></TD></TR><TR><TD CLASS="quote"><p>Also, when they do re-seal it, have them install part number 8689527-3 "bleeder nipple" and 30681138-1 "filter" to allow the gear to bleed off pressure as it heats up. It will make it last longer and is easy to do. Those 2 parts cost $8 together.</TD></TR></TABLE><p>and if they would actually <B>READ the TNN</B> that is what they're supposed to do
 

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Uggh but they NEVER read the TNN. I called up a parts department yesterday to order those parts and the guy practically started yelling at me on the phone b/c he got so frustrated saying there are no such parts and he's never heard of anyone ever doing that etc. etc. <br>I calmly explained where in VIDA to find them, he still couldn't so since I was in Maine, I went to the closest dealer and got them there w/ out any of the frustration.
 

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Re: (Big Will)

Thanks for the prompt responses. I will look into these options.<p>Sorry for posting in the wrong model year forum.<p>Is removing and reinstalling the bevel gear from the car pretty straightforward?<p>Can I then drive FWD only until I get it back and have a chance to reinstall?<p>Also, are the venting items externally accessible without removing the unit from the car (I have access to a lift)?<p>Thanks.
 

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The TNN says to remove the bevel gear in order to install the vent but you could probably do it on the car if you suck out the fluid from the fill hole (assuming you haven't drilled a drain hole in it).<p>But yes you can drive it as a FWD w/out the angle gear on it but you need a way to secure the collar between the transmission and bevel gear. "LookforJoe" I believe loctited his in and then made a little boot for it while he needed to run FWD for a few weeks.
 
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