Author Topic: TD Van oil return woes  (Read 3215 times)

January 13, 2008, 10:55:26 am

Luckypabst

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TD Van oil return woes
« on: January 13, 2008, 10:55:26 am »
This is an extension of the discussion that got going over in the classifieds concerning my turbo oil return. I pulled the sheetmetal to get a good look at what's there and it really just gave me a bunch more questions. I know what I need to do to get it fixed right but I need some stuff cleared up for me.

The first two pictures show what the existing drain setup looks like. Obviously there will be an uphill run no matter what I do. It looks like there's not much option there other than removing the existing fitting and welding a new one in that's actually horizontal to the ground - that's not an option at the moment.

From these two pics I'm curious about the fitting at the oil pan - it looks like a standard JIC/AN male fitting so all I need at that end is a 45 degree hose end, maybe -8. Agree/disagree? Question 2 is concerning the brace (block to turbo drain hose adapter) that's in the way now and will be removed when I make a new hose adapter for the turbo - will I be compromising anything by removing that? Potential for broken exhaust/turbo bits from vibration? Oh - what's the ID of the drain line? I'm thinking of using a 3/8 NPT to AN-8 adapter at the turbo end.





Next photo is the turbo - Andrew, you were interested in intake to engine bracket interference. Also can anyone ID the turbo from this pic? It's a KKK if that matters. Opinions on performance, etc?



Finally the oil supply pipe on top. When I clock the turbo for proper drainage, the exhaust manifold will be in the way and I'll need a 45 or 90 degree fitting into the turbo to get this pipe hooked up. Does anyone know what thread to expect in the top of the turbo casting? How about what's on the pressure line - bubble flare? I'm not terribly familiar with non-SAE pressure fittings - flare, taper, etc.



Thanks
Chris
'82 TD Westy
'81 NA Caddy

Reply #1January 13, 2008, 12:23:52 pm

Luckypabst

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TD Van oil return woes
« Reply #1 on: January 13, 2008, 12:23:52 pm »
Thanks Andrew -
I was hoping for a more positive diagnosis!
The more I look at the pictures, the more I think that I do need to address the oil pan fitting angle soon. There's no point in getting into this job twice I suppose.

It looks like the oil supply will point straight up into the ex. mani when the turbo is clocked and I don't know if I can bend the hardline enough without kinking it to clear. Not a major hurdle, just something I need to be aware of when the time comes.

The intake boot isn't "squished". It's actually molded to fit in that space - still probably not the best for airflow however.

I was curious about the turbo itself. I've read you or others discussing boost response on Vans but I never really knew exactly what I had. Maybe I'll chase down the K14 to optimize the setup. I also need to find someone to rebuild just the turbo IP top that I have, too.

One problem I have in regards to boost response is off-road on an incline, I have to slip the clutch pretty intensely to build enough boost just to get the van moving. I'm all for improvements in this regard.

Are all K14 turbos created equally? Do I need a TD Vanagon specific application?

Thanks!
Chris
'82 TD Westy
'81 NA Caddy

Reply #2January 13, 2008, 12:49:22 pm

Luckypabst

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TD Van oil return woes
« Reply #2 on: January 13, 2008, 12:49:22 pm »
Thanks again, Andrew -
A quick search of Ebay.de shows one from a later Tdi that has a very obviously different exhaust flange.

I guess I'm now looking for an AAZ K14! Ugggh..

Chris
'82 TD Westy
'81 NA Caddy

Reply #3January 13, 2008, 01:57:05 pm

Luckypabst

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TD Van oil return woes
« Reply #3 on: January 13, 2008, 01:57:05 pm »
Yea I saw that pipe in a few pics. I figured it was a simple matter of removal and tapping straight into the housing or shortening it and welding on a fitting of some type.

That used turbo is tempting. My absolute inability to read German leads me to believe they aren't ready to ship to the states. Off to website translatorland.

Chris
'82 TD Westy
'81 NA Caddy

Reply #4January 14, 2008, 10:46:30 am

Baxter

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TD Van oil return woes
« Reply #4 on: January 14, 2008, 10:46:30 am »
I stock K14's for the T3.
£325 plus VAT and a £200 surcharge on the old core.

I have both the normal one for 2WD T3's and the syncro specific turbo (yes, they are different)

They are genuine KKK rebuilds.

Reply #5January 17, 2008, 02:46:31 pm

Baxter

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TD Van oil return woes
« Reply #5 on: January 17, 2008, 02:46:31 pm »
Return line and turbo, yes, Sumps are not the easiest things to come accross though, in your money anywhere from $120 USD upwards!
There are several variants too, with the sump plug in different locations and different styles of sump plug too, syncro ones are different to 2WD, early 2WD ones are also different but all interchangable.

Reply #6January 17, 2008, 02:54:55 pm

Reply #7January 24, 2008, 02:08:13 pm

blackdogvan

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TD Van oil return woes
« Reply #7 on: January 24, 2008, 02:08:13 pm »
This guy did all the homework & put it up for everyone to share.

http://www.haywood-sullivan.com/vanagon/TDI/

The oil return info is the same for your van I think.
1991 Vanagon 1.9 mTDI