savannahvolvoguy Posted December 12, 2016 Report Share Posted December 12, 2016 I recently did the timing belt and PCV system on my wife's 2005 S60 2.5T with 120K miles and noticed that there appears to be oil leaking from the front cam seals. I'm all geared up (i think) to do the work but before I dive into it I figure I'd reach out to the people of volvospeed to see if anyone has any good advice. Thanks in advance for your priceless wisdom! Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted December 12, 2016 Report Share Posted December 12, 2016 You're going to need a cam locking tool before you get started. ONLY use Genuine Volvo seals and make sure you get the cam gears put back on correctly. I made a video about how to setup the CVVT gears a few years ago. Hope that helps! Link to comment Share on other sites More sharing options...
savannahvolvoguy Posted December 13, 2016 Author Report Share Posted December 13, 2016 Wait you made this video? I've been watching it over and over trying to get in the right mindset. I've got the cam locking tool. In this video the exhaust cam was rotated to fit the locking tool. Does it need to be rotated back to its original position at the end of the procedure? How do you ensure you get the cam gear back on correctly? Link to comment Share on other sites More sharing options...
hootie6828 Posted December 13, 2016 Report Share Posted December 13, 2016 There are several different vvt setups as well, and the way you set the cams depends on which setup you have. That video is a single vvt hub, you should have both on your 05, which means you set it a slightly different way. Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted December 13, 2016 Report Share Posted December 13, 2016 12 hours ago, savannahvolvoguy said: Wait you made this video? I've been watching it over and over trying to get in the right mindset. I've got the cam locking tool. In this video the exhaust cam was rotated to fit the locking tool. Does it need to be rotated back to its original position at the end of the procedure? How do you ensure you get the cam gear back on correctly? Yes I made this video. The hub in this video is spring loaded, so it snaps back without the belt holding it in place. Yours will rotate in the same fashion, they just aren't spring loaded. Obviously the information is the same just x2 with dual CVVT. On some engine you will need to rotate one of the cams slightly to get the tool to line up. Once you have timed the engine and install the timing belt no further adjustments are made to the cams. You'll know if you've done the procedure correct, both cam gears are at their limit positions and the marks align. If you don't do it right you'll get a check engine light on the second key cycle :) Link to comment Share on other sites More sharing options...
savannahvolvoguy Posted December 13, 2016 Author Report Share Posted December 13, 2016 I like how specific that is... "on the second key cycle". Realistically is this something that a moderately competent home mechanic should attempt? It seems like the risk of failure if this procedure is done wrong is potentially high. All in all though this procedure doesn't look really much worse than just doing the timing belt (which has got to be one of the easiest timing belt jobs out there). Thanks again and keep up the good work keeping the Volvo community on their wheels! I love the Swedish flag in the back of the video by the way. Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted December 14, 2016 Report Share Posted December 14, 2016 I think if you have no problem with a timing belt this shouldn't be much different. My goal with this video was to simplify the wildly over complicated instructions in VIDA. Link to comment Share on other sites More sharing options...
savannahvolvoguy Posted February 4, 2017 Author Report Share Posted February 4, 2017 Okay I guess I might be eating my words a little bit after claiming that the timing belt procedure was so easy. I guess I'm not even sure if the situation I think I'm experiencing is real or not so... here we go. I recently did the TB on my XC70 and the whole procedure went smoothly right to the point when I started the car. It started right up but then proceeded to hunt for an idle. It would idle up and down for about 30 seconds or so before settling on its final normal idle RPMs. I assumed this might be not be too bad of a sign as maybe the computer was making some small adjustments or something. However... The first long drive I took with the car after the change I noticed that the fuel economy was somewhat reduced. It went from like 25 to 27 on the highway to something more like 23 or 24. Not a big change but I wouldn't really expect any change at all. I've also started to notice that maybe it doesn't have quite as much power and perhaps doesn't feel quite as smooth. It also doesn't sound like its making as much boost. It also seemed to me at the time that maybe it was a little more difficult to turn over with the new belt back on. At this point I'm not even sure if I'm just imagining this. It seems possible even that the gas mileage hasn't actually changed and I just hand't noticed that the gas mileage has reduced to its current level before doing the work. Its also possible that I haven't gone on a long drive with it in the winter months and perhaps the colder denser air might be making a difference in my gas mileage. The only thing I can think I could have done during a timing belt change is that maybe I got one of the cams off by a tooth. The confusing thing is that I would think that CVVT could either account for the one tooth variance or the car would throw a code of some sort. There are no warnings to speak of. At this point I've put about 500 miles on the car hoping it was a software thing or my butt dyno would figure out that nothing has changed but no such luck. So my question is... What could I have done? and am I just crazy? Thanks for the help. Link to comment Share on other sites More sharing options...
831t5r Posted February 5, 2017 Report Share Posted February 5, 2017 Also be aware seen plenty of the cvvt hubs on intake and exhaust leak oil also. Make sure to carefully inspect. With timing belt off the cams if you grab the cam gear and there is excess forward/back play then its bad Link to comment Share on other sites More sharing options...
Ihatespeedbumps Posted February 6, 2017 Report Share Posted February 6, 2017 If it's out of time it will set a timing code. Are there any codes stored? Link to comment Share on other sites More sharing options...
Midnight Caller Posted February 7, 2017 Report Share Posted February 7, 2017 We had an XC90 2.5T with the intake VVT hub 4 or 5 teeth away from the right position, and the error was "Camshaft sensor signal too high" or "Camshaft sensor signal missing"... Link to comment Share on other sites More sharing options...
savannahvolvoguy Posted February 11, 2017 Author Report Share Posted February 11, 2017 Okay... I don't have any OBD codes and I don't have VIDA yet (I only have windows 10 computers and have heard questionable reliability with installing to windows 10) so for the moment there are no codes I'm aware of. There's definitely something wrong though because when I started it up to come home from work It started right up then began to stall very loudly. It was so loud as it was stalling that I thought the timing belt broke or something but it eventually settled down and idled like normal. I'm going to take the timing belt cover off tomorrow (Its dark now and the atmosphere is loaded with gnats and I don't want to leave my Del Sol outside in the dark to work on it in the garage) and see how it looks. What could have I done during the timing belt change that didn't result in complete loss of driveability or even a trouble code that's producing these weird engine quality issues? Thanks again for all the help. Link to comment Share on other sites More sharing options...
savannahvolvoguy Posted February 12, 2017 Author Report Share Posted February 12, 2017 I'm going to continue the rest of this on a new thread... to save confusion... because it's not the car with the cam seal issue. Link to comment Share on other sites More sharing options...
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