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Author Topic: Oil Cooler Upgrades  (Read 8228 times)

Reply #15September 02, 2014, 04:58:01 am

Toby

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Re: Oil Cooler Upgrades
« Reply #15 on: September 02, 2014, 04:58:01 am »

120 psi and under 50c on oil and water

But i know 100% that i have a bering (sic) issue due to oil starvation and oil foaming...

Yeah, but you may blow a filter off or eat the intermediate shaft gear at those pressures. Do you have the bypass plugged for some reason? If not it must be stuck. You should never see oil pressure that high. I wonder how much HP it eats to make that kind of pressure.

Reply #16September 02, 2014, 05:00:11 pm

rodpaslow

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Re: Oil Cooler Upgrades
« Reply #16 on: September 02, 2014, 05:00:11 pm »
If you go to a bigger cooler, aren't you just asking for trouble with coolant temps?  I never liked the original vw cooler.  I can sit and idle my TDI to cool down after a long run and the coolant temps start climbing and oil temps drop somewhat.  My preference is to keep them separate if possible.

If you go to a big vw type cooler, your trading one for the other; and not really getting rid of any heat in the meantime - isn't that the cause?
99' 1.9 1Z Tdi, hybrid pump -1.9 housing & rover internals, 2052 wastegate turbo,.25 hflox nozzles, SDI intake, CTN tranny
96' 1.6 TD Golf, Giles pump, VNT 17, Gas changed to Diesel, Air to Water Int.

Reply #17September 02, 2014, 06:44:41 pm

vanbcguy

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Re: Oil Cooler Upgrades
« Reply #17 on: September 02, 2014, 06:44:41 pm »
Personally I have no issues keeping my coolant temperatures down.  The folks with more difficult vehicles (Vanagons, Kubvans) may not be so lucky but the basic idea behind the VW system is to use a single radiator for multiple systems rather than having a bunch of individual ones.  I don't see much in the way of coolant temperatures unless I'm stopped in traffic on a hot day.  I also have the biggest radiator that VW used in the Mk3 platform and no A/C, so others MMV...

In my case I have plenty of available cooling capacity in my cooling system and too much heat in my oil.  I've also got an engine that's known to have issues heating up at all quickly without its EGR system so the more heat I can get from the oil into the coolant the better.
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #18September 03, 2014, 11:21:50 am

rodpaslow

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Re: Oil Cooler Upgrades
« Reply #18 on: September 03, 2014, 11:21:50 am »
I'm surprised you have such high oil temps.  My tdi, I think it's a 1Z, could be ahu, runs pretty much right at 208F oil temp (98C) .  Stock setup with coolant temps at 184-187F - running at highway speeds - 100 km or better.  this is with a stock setup. 
99' 1.9 1Z Tdi, hybrid pump -1.9 housing & rover internals, 2052 wastegate turbo,.25 hflox nozzles, SDI intake, CTN tranny
96' 1.6 TD Golf, Giles pump, VNT 17, Gas changed to Diesel, Air to Water Int.

Reply #19September 03, 2014, 11:24:10 am

rodpaslow

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Re: Oil Cooler Upgrades
« Reply #19 on: September 03, 2014, 11:24:10 am »
But, that is at stock injectors at the moment having problems with fueling....my egt at speed doesn't get over 920F, no turbo spool as yet.
99' 1.9 1Z Tdi, hybrid pump -1.9 housing & rover internals, 2052 wastegate turbo,.25 hflox nozzles, SDI intake, CTN tranny
96' 1.6 TD Golf, Giles pump, VNT 17, Gas changed to Diesel, Air to Water Int.

Reply #20September 04, 2014, 02:57:35 pm

vanbcguy

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Re: Oil Cooler Upgrades
« Reply #20 on: September 04, 2014, 02:57:35 pm »
I'm surprised you have such high oil temps.  My tdi, I think it's a 1Z, could be ahu, runs pretty much right at 208F oil temp (98C) .  Stock setup with coolant temps at 184-187F - running at highway speeds - 100 km or better.  this is with a stock setup.

Yup - I'm surprised too, which is why I want to sort it out...

Around town yeah, I'm at about 98C most of the time.  But sustained Interstate runs are a different story.

I think I've more or less decided that my oil cooler is junk.  As I mentioned earlier I realized that I bought it in a parts order from ECS Tuning when I first started getting bits (before I'd found ID Parts and various other better quality vendors).  Going back and looking at what I ordered I realized ECS doesn't even display a brand name for the cooler I got at all (though they do sell well-known brands as well).  Out of the parts I received in that order:

- The water pump bearing and seal failed at less than 500 km
- The serpentine belt tensioner pulley bearing failed at less than 500 km
- The oil dipstick funnel failed on installation

This is the oil cooler I got:

http://www.ecstuning.com/ES259454/

So I think I have two possible pathways:

- Replace the probably poor quality cooler I have with a name brand and see if it helps
or
- Go straight for an upgraded cooler

I'm about due for an oil change so it'd be a good time to make changes if I'm going to...
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #21May 12, 2015, 12:39:39 pm

vanbcguy

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Re: Oil Cooler Upgrades
« Reply #21 on: May 12, 2015, 12:39:39 pm »
I know I'm bringing this back to life... ;)

So I still haven't changed anything with my oil cooler.  The highest oil temps I've seen have been around 120C, hot hot hot.  However for a CJ-4 oil like T6 that's still in its "happy" zone, though yes the pressure does start to drop quite a bit.

Reading through this thread again I realized one BIG reason why my oil temps are probably higher - I have ASV pistons.  They have a big oil chamber wrapped around the combustion chamber in the piston which gets filled by the sprayer jets.  The entire reason I'm using them is that they are more effective at keeping the piston cool at higher power levels.  Well, if you're cooling the piston more you must be heating the oil more, right?  Duh.

Still planning on upgrading the oil cooler to the 4motion one.  Just makes sense to me.
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #22April 19, 2016, 11:30:49 pm

rotaecho

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Re: Oil Cooler Upgrades
« Reply #22 on: April 19, 2016, 11:30:49 pm »
I put the oil-cooler mentioned below on my AHU

1x 028117021E - oil cooler

1x 028115721B - union tube

1x 068115723 - hexagon nut; ADC,AAZ,ABA,; AHU,1Z


I've got the water-to-oil cooler that's stock on the 3.6-3.2L Touareg, Audi Q7, 3.2 Audi TT, etc:  VW 038117021B, rotated 90 degrees CCW to clear the block.  I modded the front engine mount to clear the stock heater hardpipe on my Mk1 Jetta.

The cooler is on a mostly stock 1.6TD that has the Garrett T3 replaced with a VNT-15 with manual linkage vane control (boost and throttle position).   Oil temps are now within 10 degrees F of water temps,  after warmup- no matter how hard its run, but a Mk1 Jetta is light.  The oil temp is measured at the pan drain and water temp at the back of the head (stock).   Oil filter change is a B#%^ for clearance with the core support...I need to try the 2.0L bus filter!!

Yeah you've got the 'big daddy' cooler...

I've been thinking of replacing mine with one of these:



Would be a bit of a tight fit.  P/N is 028 117 021E
-Will
1982 Westfalia 1.6na diesel aka Betsy Bertha The Tortoise

Reply #23April 20, 2016, 12:30:50 am

vanbcguy

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Re: Oil Cooler Upgrades
« Reply #23 on: April 20, 2016, 12:30:50 am »
Have any pictures? How did it fit?

Sent from my XT1097 using Tapatalk

Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

 

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