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1998 Volvo V70xc Turbo Replacement

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  #21  
Old 05-03-2009, 05:10 PM
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so what seals should i look to replace?
 
  #22  
Old 05-03-2009, 05:41 PM
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Well not that it is fixed is a leaking from anywhere?
That's what you need to do. Clean up and run the motor or take on a drive and check again.
 
  #23  
Old 05-03-2009, 05:50 PM
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will do. i have to order the pcv thing first (i just pulled it apart this afternoon, wasn't really planning to, but just got into it).

I will keep you posted. thanks for all your help.

liam
 
  #24  
Old 05-03-2009, 06:04 PM
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Your welcome on the help anytime.
 
  #25  
Old 05-05-2009, 03:41 PM
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hi tech. i am just waiting for the pcv kit now, but have probably read too much about this issue for my own good. im getting ready to do a compression test on this thing as well.

my question is i have read about bad valves/and or rings causing oil in the tail pipe (AND white smoke which is happening with my car) and i wonder if this is something i should look into and how i can diagnose it. also whether either of these something i should attempt.

i seem to have lots of different problems going on at once. i'm also pretty sure i have a leak at the turbo oil line.

thanks,

liam
 
  #26  
Old 05-05-2009, 07:14 PM
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If it is valves or rings then it will show up on the compression test.

I myself doubt it is rings I have had heads off of cars with 150k rough miles and the cylinders and rings looked like new.
 
  #27  
Old 05-06-2009, 04:37 PM
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Okay Tech, I did the compression test this afternoon and below are the results (i am calling the cylinder furthest from the distributor #1). The first number is dry, the second is with a a little oil in each.

1 -- 190, 220
2 -- 210, 220
3 -- 210, 220
4 -- 210, 215
5 -- 210, 215

Can you please advise what these results indicate to you given all the other symptoms?

Thanks very much,

Liam
 
  #28  
Old 05-06-2009, 07:07 PM
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Those compression numbers are good overall.
If you had like one cylinder at around 70 and the rest those numbers then there would be a problem.

But those are fine.
 
  #29  
Old 05-06-2009, 07:09 PM
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so does that pretty much eliminate valve, ring and head gasket issues?

thanks
 
  #30  
Old 05-06-2009, 07:23 PM
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Yes it pretty much does.
 
  #31  
Old 05-06-2009, 07:27 PM
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well that's good news but the fat lady aint singing yet. only other question i have at this point is what about the chocolate milky oil?

thanks again,

liam
 
  #32  
Old 05-06-2009, 07:52 PM
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If you take alot of short trips driving it can cause that.
 
  #33  
Old 05-08-2009, 05:54 PM
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hi tech.

well i put everything back together with the new pcv system pieces and started it up. in the driveway with light revving it seemed to smoke less than before which was encouraging, but when i took it around the block and opened it up (where i think the turbo might have kicked in but not sure), it started to smoke the same as it had before the pcv.

any suggestions?

thanks
 
  #34  
Old 05-08-2009, 11:11 PM
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Well if there was alot of oil stuck in the exhaust system it will take a little while to clean it all out.
 
  #35  
Old 05-09-2009, 12:37 AM
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is there a way or method to verify whether the turbo is working or not? i have never driven this car without it's current problems and cant really tell if it's working just be driving it (though it is quite zippy).

thanks
 
  #36  
Old 05-09-2009, 07:29 AM
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Well you can connect a vacuum/pressure gauge to it to make sure it is boosting.
You can also remove the induction hose and check for shaft play.
 
  #37  
Old 05-09-2009, 09:54 AM
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thanks tech. do you have any diagrams or a step by step you could point me to to figure out the lines associated with the turbo? i am having trouble figuring out the functions of all the lines going in/out.

thanks
 
  #38  
Old 05-09-2009, 10:00 AM
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Well the main plastic one from the Mass Flow to the turbo is the one you need to remove to feel for play.
The small vacuum lines there should be a diagram on the hood for those.
 
  #39  
Old 05-09-2009, 01:18 PM
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there is still just about as much pressure coming out of the dipstick when i just tested it even after the complete pcv system replacement. this thing is driving me crazy.
 
  #40  
Old 05-09-2009, 01:35 PM
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I bet it is.
 


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