Hey all, this is my first post, though I've been using this resource since i bought my 97 850 t5 this summer. So my issue is this, after rebuilding the turbo recently (i can't see how this could be related but you never know) i found that i am getting a considerable amount of water in my oil. It's not enough for me to immediately suspect a head gasket, but enough that it makes me consider it beyond what a blocked up pcv could create. I took some pictures, though after work today there was the most emulsification I've seen on the dipstick so far.








My apologies, pics could have been better.

 

 

Awesome thank you! I actually took a little 45 min drive today hoping it was just condensation from my 1k drive everyday. Seems to be the culprit, plus my bunged up pcv, a little bran should take care of that.

 

There is a difference between water (coolant) mixing with the oil and just having the creamy stuff on or in the dipstick tube or under the fill cover.
What I'm seeing in your photos looks more like condensation. When you redid the turbo did you remove the PTC and thoroughly clean it out ?? If removed did you make sure to get it back in and seated securely ? If in doubt you might want to use a little RTV (silicone sealant) to help seal it in place. Also check to make sure you didn't disconnect a vacuum hose in that area like under the cover where you can't see it. Might want to check the hoses of the PCV system and replace any that feel brittle or too soft. You might have a hose that's slightly restricted on the inside and isn't allowing enough circulation in the crankcase.
http://www.matthewsvolvosite.com/for...c.php?p=226269

 

Sorry for the late reply, yes i did clean the ptc. I actually just replaced the whole pcv system as of day and found that it actually idled kinda rough for the first little bit. Took it for a spin and blew the turbo i think. here's the vid url . What the crap is going on here??? I floored it sometime into the drive and the power dropped off and then came the smoke.

 

I may have posted to you twice rspi. Once to your youtube channel and once here (assuming your robert diy)

 

It could be the seals in the turbo let go but it's more likely it's a headgasket. Are you losing any coolant, in there any bubbling in the expansion tank, have you rechecked the oil to make sure it isn't now looking like milk chocolate ??

You can always get a block checker from autozone as a loaner and check for exhaust in the recovery tank to confirm a bad head gasket.

https://www.google.com/#q=block+tester+youtube

 

Im posative its not a headgasket. Started into it tonight, took off the turbo intake and found the compressor wheel nut just sitting there. I did some thinking and thought to take off the downpipe to see if I could further diagnose anything (15g flat flange). Started it up and oil was splashing out of there, enough that i got hit in the face with some standing off on the passenger side watching. To me that seems like way too much to be a failed seal, and so my stomach sank with the thought of it being rings. No idea what to think now.

 

I should probably do a compression test.

 

Think turbo. The bearing is under pressure and it's more likely to be leaking enough to have oil blowing out.

 

The core should be alright? Just a rebuild? I guess now that i think of it, i started it up without the compressor nut on so it would make sense the oil would pour past.

 

The "core" or cartridge should still be good as long as the wheels didn't get loose enough to hit the housings.

I think you have a "straight" exhaust housing. My stock one was a conical and then there is straight (flat) and angled (flat).

You likely need or will benefit from a turbo rebuild anyway so it's a good idea to try this first before thinking you have oil blowing past the rings. The rebuild isn't hard it's just a matter of paying attention to how it comes apart and doing a through cleaning before reassembly. There tons of videos on youtube showing how it's done along with articles on this forum and VolvoSpeed.

 

I actually have rebuilt this turbo one and a half times already, i feel shame.
I just lucked out and got it balanced right the first time aligning the previous notches in the nut amd wheel. Second time, i wasn't so fortunate. I got it off today and saw that yhe turbine wheel did hit the housing, so im thinking i need to find a new core properly balanced. I checked out ard and it's 825 for a 16t.
I found this too, which if it's legit, would be perfect.
http://m.ebay.com/itm/NEW-Mitsubishi-Turbo-CHRA-TD04HL-15G-VOLVO-850-/280600885720

 

Man, I would sell you a 16T for a lot less than that. PM me.

If you have a '95 I'm sure you have a conical exhaust flange.

 

I've bought stuff from Robert (rspi) before, easy transaction.

 

If only your message came sooner, i went ahead and bought that ebay rebuilt 15g. It all seems good so far, would have loved to throw in a 16 instead. It's a 97 and i think my old turbine housing would fit coupled with the 16t right? What would it have cost anyway? Ups ground to Canada was 25$ i believe.

 

No need to get into "what ifs", glad you have your turbo on the way.

I do believe the 16T blade fits in the 15G flange.

 

Curious what the 15 cost you and what year did it come from ?? Did they give you it's model # and if so what was it ?
Is it just the cartridge or is it with the the housings ??
Remember to check it over yourself before bolting it in.

 

Here's the link
New Mitsubishi Turbo Chra TD04HL 15g Volvo 850 | eBay

It came from an 850, which mine is, and is just the chra, not the housings. It all looked pretty good, my model number i think was the 0310, can't remember but it matched one of the part numbers he gave as a match. It's actually in and running now, no complaints.

 

I'm just in love with these t5 engines!!! I read somewhere that you can mate these bad boys up to a 960 tranny to make the t5 a rwd transplant into whatever. Love Volvo!