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First time user here. Forum looks to be informative & supportive. Hope I'm posting appropriately. If this posting belongs elsewhere, would appreciate knowing where.<p>I'm a 3-year 1998 V70 wagon Turbo owner, VIN: YV1LW5643W2452695 and would like to get some advice from this forum regarding options on how to proceed with excessive turbo intercooler oil deposits, in addition to some specific observations made of the engine's cylinders. First some relevant history -<br> <br>Due to an accident last November the insurance company remedy to our damaged factory engine was to have the Volvo dealer put in an equivalent salvaged engine "claimed" <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/rolleyes.gif" BORDER="0"> to have comparable mileage (90,000 mi). Within a couple of months we noticed intercooler oil leaking, even without the intercooler drainage nipple having been installed. On our previous engine, no intercooler oil was ever observed. <p>Our own mechanic then installed the drainage nipple per the June 1999 service bulletin. We continued to monitor and drain the intercooler, measuring approx 1/2 pint every 100 miles or so, i.e. excessive. At the same time our mechanic used a boroscope to identify the following: (pls review and see "continued history" below)<br> <br> <br><I>Compression readings cylinders average 150psi.<p>Leak testing showed a large amount of blow-by on cylinders #3 and #5.<p>Using a boroscope we were able to see the cross-hatch in #3 was tarnished<br>from blow-by.<p>As an example, #1 cylinder's cross hatch is still visible and clean.<br>#3 cylinder clearly has a large "ring ridge" or wear ridge and it's oil wet.<p>If the oil cap is left on the cam cover while leak checking the engine, a<br>whistling sound can be heard after a time.<p>Loosening the oil cap will allow air that is "blowing-by" the rings to be<br>very noticeable as it escapes.<p>Also lifting the single o-ringed dipstick produces a path for pressure to<br>escape from within the crankcase.</I><br> <br><B>(continued history) </B> However our insurance company chose to ignore the above observations and sent us to another independent mechanic who called the above "nonsense" and advised a complete turbo replacement. We did so at $1200, <B>our $1200</B>. However, the excessive deposits into the intercooler are continuing after the turbo replacement. <br> <br>After challenging the insurance company, they have replied I believe in a responsive <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/wink.gif" BORDER="0"> manner as follows and their reference to the mechanic is the one who originally made the cylinder wear observations:<br> <br><I>Bruce,<br>As it stands now, per our discussion with your mechanic, we are waiting on a price for repairs to the PCV system. <p> I am willing to replace the engine, rebuild the engine, total the entire vehicle or whatever is necessary to make you whole providing Geico actually attacks the problem and does not throw money away chasing things that do not fix the problem. My concern is that a substantial amount of work could be applied to the PCV system, I will pay for it and then the car comes back again with the same issues. I understand your concerns and also appreciate the effort you have done to mitigate your damages and therefore I am willing to take some risk so I would be willing to spend some but I need more information on the cost before a final decision is made. <p> I apologize that I cannot say exactly what I am agreeing to as I do not have all the information necessary to make a competent decision. As soon as I get the figures from the mechanic I can call you and we can discuss this in a more enlightened way. </I><br>==========================================<p> <br>Obviously there are many options here. If you were to consider a fix to the engine (my wife wants to keep the car as it is generally in good shape), what specific areas would this forum have our mechanic investigate? <p>Considering the insurance company is willing to stay the course with us here <I>(replace the engine, rebuild the engine, total the entire vehicle)</I> I'm willing to consider either a repair or replacement, but would like to get some guidance as to engine rebuild vs. engine replacement. The latter obviously is another gamble <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0"> considering we cannot afford a new engine replacement. If it comes to another salvaged engine, has anyone had experience with a reliable resource? <p>What about a reliable source for a rebuilt engine? After some initial research I've found that Jasper Engines in CA is known for re-built engines, but they do not do Volvos. A call to the dealer today reveals they no longer do rebuilds - accumulated labor/parts costs apparently are prohibitive.<br> <br>thank you in advance for any response you can give on our Volvo. I'm interested in all practical options and happy to answer questions to further qualify the situation.<br>
 

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wtf is intercooler oil?<p>(welcome to the forums, btw)
 

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Re: (BruceR)

ok, good, but still trying to figure out what you are talking about.<p>intercooler drainage nipple?<p>the only ports on the intercooler should be the inlet and outlet. there should be nothing relating to oil with the intercooler.<p>
 

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Re: (phuz)

Matt - I've sent the Volvo service bulletin to your email path. Unless Volvo is in error here, a small amount of engine oil, byw ay of turbo operation is not uncommon in the intercooler system components.
 

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Re: (BruceR)

Thanks, I will check it out when I get back to the office on Monday. I don't know what they call a common amount, but I have never heard of any amount of oil in the intercooler being referred to as "common."<p>Glad you are getting things taken care of! <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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Discussion Starter · #7 ·
Re: (phuz)

Matt, thanks for the speedy reply, but I don't want to leave the impression to the forum that things are getting taken care of... just the opposite. The fact that the intercooler drain port is accumulating excessive engine oil is symptomatic of a larger engine problem. That's what we're trying to isolate.<p>I appreciate anyone's comments/discussion on possible cause & effects based on my original posting. thnx.
 

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have you tried using a high mileage oil / thicker weight and seeing what that does for the symptoms?
 

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Phuz,<br>Actually I have some intercooler oil too and every 4-5 months or so I take the lowest intercooler hose (the one that's at 90degrees) off and clean it out as well as into the intercooler as far as I can reach. I have not had a nipple installed, though have read about it with curiosity. Other forums say that some oil like in my case is normal, but I'm not sure...I'm suspecting turbo seal, but then again, if Bruce has a new turbo put in and still gets that much oil, I would suspect something very different. Oh, by the way, I have more blow-by now than before I changed out totally my pcv hoses and oil trap. Go figure <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0">
 

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Re: (MadeInJapan)

If the mechanic who said two cylinders are bad can be believed, you probably have bad rings, and this is blowby that is getting into the cylinders,, but it should be burned by the engine, and would never get into the intake system. The oil there sounds like a turbo that has bad seals. <p>I think you have multiple problems with this engine, bad cylinders, specifically rings (worn cylinder really bothers me) and blown seals, or other source of oil in the intake system. Could be blowby as a result of the blown rings, but far too muich oil is getting into the intake. I think this engine was driven hard and put up wet, i.e., abused badkly. A cylinder leakdown test would really tell you if there are bad ring, bad valves, (read burned) or if the problem lies in the PCV system or the turbo.
 

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Discussion Starter · #11 ·
Re: (wizzard_al)

Hello Allen (wizzard_al) in Kent WA (we're just north of you in Duvall),<p>Thank you for the comments, all excellent points. I agree, multiple problems are suspected with this used engine of unknown history. <p>Here's an update though since our mechanic has since found a creased gasket on the outflow (return) side of oil flow to the turbo. After fixing this leak the overall engine oil containment seems to be tight - zero accumulation on the bottom of the intercooler, AND zero change in engine dipstick level after driving to Spokane and back this last weekend (500 mi), AND no continued accumulation of oil sheen on the back of the car. This is in contrast to previously having to add a half quart following a few commute trips. Our mechanic suggests we go ahead and continue to drive over the next month or so, and watch the oil carefully.<p><B>IF</B> the absence of oil consumption continues after a couple months of summer driving, then I'd like to look back and say, "well the turbo rebuild was in fact needed after 110,000 mi on the factory one". What will remain however is the uncertainty as to the potential impact of the cylinder wear observations, but you correctly point out that a cylinder leak test should be able to corroborate what is going on there. Therefore it sounds like it would be wise to at least get agreement from the insurance company to support that diagnostic and deal with any adverse results of it.<p>I don't remember if I mentioned this earlier, but after checking with the local Volvo dealer in our area, they advised they <U>do not</U> perform rebuilds on this engine, claiming the costs of the excess labor and parts are prohibitive. They will accomodate the labor to forklift out the factory engine and put a used replacement in, however they won't have anything to do with sourcing a used engine for you. Instead they want about $8K for a new Volvo engine replacement. In searching sources other than the dealer for engine rebuilds I was referred to <A HREF="http://www.jasperengines.com" TARGET="_blank">http://www.jasperengines.com</A>/ however Volvo engine rebuilds are one of the few they too avoid and will simply not take on. Perhaps this would be a topic for a new thread in asking what it is about this particular engine that discourages rebuilds (?), or perhaps the accuracy of my sources is simply wrong. Thnx again for the advice here.
 

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Re: Turbo Intercooler excess oil & cylinder wear on 2.5L V70 (BruceR)

Sounds like you got a bad replacement motor. You may want to try another one from a Volvo recycler, like Erie Volvo in NY.
 
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