Need oil lines for volvo turbo

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So I had some issues with oil blowing by the seals in the turbo and getting into the intake and the exhaust. I had taken the banjo bolt and made it a little bigger before my trip and this had reduced the amount of oil I was seeing in the intake but during my road trip across canada I continued to see both oil in the intake and oil in the exhaust when the engine was cold (I assume probably because the oil was thicker and as such higher pressure in the turbo)

I've been doing some reading online and it sounds like an oil restrictor might be a good idea (as I have an unknown amount of oil trying to make its way into the turbo at an unknown pressure) reading around online it sounds like for a T3 turbo I should put in something like this:

Oil Inlet Restrictor - .065" hole size 1/8" NPT (for Journal bearing and larger GT BB) : atpturbo.com

Sounds like it can help with the problem I have... and also increase the life of my seals (assuming my current oil pressure is higher then it should be)

I figure I can make the same thing by brazing my current fitting shut and then drilling it out the same size. (Hence free fix!)

The other thing I'm thinking of doing is drilling out the banjo fitting a bit bigger (in the part that connects to the hose) as I think that's my current restriction.

Failing this I'll be back to square one and actually welding a bung into the oil pan.... Just trying to avoid the nasty mess that'll be...

Does anyone have any opinions on this? Especially guys who have done turbo's before?
 
Toshi38 said:
So I had some issues with oil blowing by the seals in the turbo and getting into the intake and the exhaust. I had taken the banjo bolt and made it a little bigger before my trip and this had reduced the amount of oil I was seeing in the intake but during my road trip across canada I continued to see both oil in the intake and oil in the exhaust when the engine was cold (I assume probably because the oil was thicker and as such higher pressure in the turbo)

I've been doing some reading online and it sounds like an oil restrictor might be a good idea (as I have an unknown amount of oil trying to make its way into the turbo at an unknown pressure) reading around online it sounds like for a T3 turbo I should put in something like this:

Oil Inlet Restrictor - .065" hole size 1/8" NPT (for Journal bearing and larger GT BB) : atpturbo.com

Sounds like it can help with the problem I have... and also increase the life of my seals (assuming my current oil pressure is higher then it should be)

I figure I can make the same thing by brazing my current fitting shut and then drilling it out the same size. (Hence free fix!)

The other thing I'm thinking of doing is drilling out the banjo fitting a bit bigger (in the part that connects to the hose) as I think that's my current restriction.

Failing this I'll be back to square one and actually welding a bung into the oil pan.... Just trying to avoid the nasty mess that'll be...

Does anyone have any opinions on this? Especially guys who have done turbo's before?
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I was just reading about oil restrictors in a thread in the diesel section...I'll see if I can find the thread.

EDIT---> after searching for said thread, I see you've already posted in it. So, nevermind... :lol:

I didn't have one on my turbo setup, and in the end I went for the mighty bunghole and it was fine with no restrictor..

but that's gotta be what axt does with their bolt on kits sans bunghole. I'd try it. still easier than messing with the freakin oil pan.
 
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I think I'm going to tear into the oilpan drain tomorrow... any advice ? ... I plan to use "the right stuff" to put it back on... I've never removed a cruiser pan before ... is there any good tricks?

Also in terms of position to weld the bung... missing the spinning bits is the most important thing i gather... any advice for where I should weld in the bung?
 
Toshi38 said:
I think I'm going to tear into the oilpan drain tomorrow... any advice ? ... I plan to use "the right stuff" to put it back on... I've never removed a cruiser pan before ... is there any good tricks?

Also in terms of position to weld the bung... missing the spinning bits is the most important thing i gather... any advice for where I should weld in the bung?
Click to expand...

blow torch and heat the sealant right off. it will come off so easy and there is no need for razor blades.
I did this after doing two other cruisers with razor blades and it is the way to go.

Weld the bung directly below where your outlet is on your turbo. Path of least resistance. :meh:
 
so i'm sitting pretty firmly on the fence... I pulled my top fitting to check out how much restriction it was providing... its about a 1/4 inch hole or so... (1/4 inch hose/barb fitting) so its definitely getting a tone of oil... likely far more then it needs (considering the internet tells me it should be a 1/16th hole or so) so I am planning to braze it shut and drill it out a tad bigger then a 16th (its supposed to be 0.065 according to atp... a 1/16th is 0.060 so i'll let the drill wander a bit :D )

2nd problem is where I am actually sitting on the fence here... I currently have a banjo bolt/barbed banjo fitting on my drain which is about a 1/2 inch line. I can either drill out the banjo fitting (in the barbed section as this is currently the biggest constriction) and pray for the best with the reduced oil flow... or I can drop the oil pan and weld in the bung which is the guaranteed fix...

I was planning to drop the pan till i got a look at how big the fitting on the top side was... I even have the bolts out already... so when my uncle gets here with the torch I probably will drop the pan and try and put it back on tomorrow if I'm lucky... seems like the guaranteed fix especially with the cold weather it'll see out here in ontario (and as such thicker oil... more restriction)

My understanding is that the easiest way is to simply heat the edge around the current gasket/silicone until it pretty much falls off? ... then clean both sides and drink several beer in the process?
 
Toshi38 said:
Well I got the new drain in, and added a 1/8th restrictor and I am still seeing some turbo smoke... looks like a turbo rebuild is in my future!
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Be patient young samurai.... all that nice thick, black, diesel blood could still be hanging in there.

Take it for a good long drive. Remember when I pulled you out of the river and smoked myself out? Took a week before the 60 stopped belching.
 
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