2001 V70 T5 Engine compatibility

wedgeweasel · Post by **wedgeweasel** » 24 Nov 2010, 13:33

I have an 01 T5 wagon with 180k on the clock, has started smoking badly from the tailpipe at the same time the "no oil pressure" warning came on. Car is US model but in Canada at the moment and it happened in minus 28 degrees temp. Looks like the engine is toast! What are my options in terms of engine replacement? ie: I plan on removing the block, possibly disassembling it to see how worn out it is, or replacing it with a compatible unit and re-using all the ancilliaries - it has an auto transmission. Any help greatly appreciated. Mark.

Post by **igel513** » 25 Nov 2010, 00:05

HOw can u be sure the smoke is due to blowby. Is it really burning oil? How many qt. does it burn in a week or month? U have to make sure it's burning oil b4 u open up the engine.

RaymanSean · Post by **RaymanSean** » 25 Nov 2010, 06:03

Not that there is a huge difference but, -28 C or -28 F? Also what weight oil were you using? How long did you let it run without oil pressure? (Those will help others with avoiding your problem and give us an idea of how bad it maybe) Have you done a compression test on the cylinders? Perhaps the turbo is dumping your oil. I would also consider ordering a US short block or long (depending on your experience and time) from your local parts house and then you will know all will be good.

wedgeweasel · Post by **wedgeweasel** » 25 Nov 2010, 16:15

Thanks a lot for the input, I went back to the car today as ot has warmed up to @ zero degrees (C). From what I can see, the oil dipstick shows lots of oil (5-30 weight Castrol, changed August or @2200 miles ago) so I started the car - started right away and did not display no oil message but noised coming from under hood so I turned it off right away. I opened the hood and then started it again to see where the noises were coming from and it appears that they are coming from the back of the motor (from the turbocharger) which would explain the clouds of smoke and the lack of power. The engine itself sounds fine so I am assuming that the Gods have been smiling on me and I only need a replacement turbo or rebuild the one in there. I have rebuilt a turbo before on a Saab 16v I used to own but the location was a lot more accessable than on this Volvo - is there a thread that explains what's involved in removing/replacing the turbo on this car?

RaymanSean · Post by **RaymanSean** » 25 Nov 2010, 21:57

Not to be harsh but do a search at the top of this page. I have not had to remove the turbo but I think that you will be spending a lot of time under the car once you get the heat shield removed which may also be easier from the bottom. After that it looks to be fairly straight forward. However before you get too far you need to make sure the engine is OK as the lack of oil pressure concerns me. I guess it is possible that the turbo bearing deteriorated enough to allow enough oil by to cause a loss to the rest of the engine, but I doubt volvo would allow such a design. Also how in the world do you have lots of oil after burning so much? Check your coolant how is that level? Something is not adding up for me to say that the turbo caused the low oil pressure and the smoke and yet there is " a lot" of oil in the pan. I am starting to think that perhaps you blew a head gasket. Also does the noise sound like knocking or more like some thing rotating?

otis44 · Post by **otis44** » 25 Nov 2010, 22:20

The turbo is not that hard to remove, most of it can be done from the top (if my memory serves me correctly). One or two of the lines that are connected will have to be accessed from underneath and are kind of a pain, but overall not a terrible job. Pulling the turbo will give you an idea of where your problem is. It doesn't take alot of oil to make alot of smoke, so you may not be noticing a loss on the stick. Especially if this has only been going on for a short time. The oil return line from the turbo is worth checking as well, possibility of it being obstructed, forcing oil back past the turbo seals and causing slow flow back to the sump, thus the oil pressure light.

wedgeweasel · Post by **wedgeweasel** » 26 Nov 2010, 13:57

Thanks again for the input, I was not being lazy, I just couldn't find anything on this site that goes through removal of the T5 turbo (still can't!!). The weather is now warm enough that I can get to removing the plugs and doing a decent compression test and while I have the wrenches out, take this turbo off. Thanks for all the help - I think the fact that the outside temp was so cold that the oil was probably like treacle going through the turbo when it was started - I only had travelled for a few minutes when all this happened. Thanks again for the help..

RaymanSean · Post by **RaymanSean** » 26 Nov 2010, 19:18

Good luck let us know the final verdict or if you need help. I was not trying to be mean just pointing out the feature. I have not seen a write up for how to do it yet either so that would have been my fist stop. You may try over at volvo speed for instructions they tend to like their turbos over there.

wedgeweasel · Post by **wedgeweasel** » 26 Nov 2010, 21:43

Thanks RaymanSean & Otis44, I will try there but I expect it can't be too difficult. I just remember when I needed to replace my front driveshafts on this car, I came accross a picture-by-picture photo essay with unbelievable instructions of how to do it - made the job so easy and straightforward. Also just found the same thing for adjusting the valves on a Honda Civic that I have to do soon. Makes the job go so easy when you have color pictures and instructions!!! Thanks again, I really appreciate this website - I will post what I find - Maybe I should be taking pictures of the removal for a post. Mark.

RaymanSean · Post by **RaymanSean** » 27 Nov 2010, 07:24

Mark, I encourage you to take pics along the way and to write a write up for it. It may be that no one else has spent the time or effort to do this yet and you could be the first it may cost you an hour to take the photos. By the sounds of it you have turned a few wrenches before and this task should not be that hard. Have a great weekend and keep your knuckles intact.