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Author Topic: gearbox oil cooler to cool engine oil instead...  (Read 5544 times)

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aaronjb

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #15 on: 03 March 2012, 22:40:53 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

But - unless you've got an aftermarket ATF cooler in there, your ATF cooler is in your radiator? If you've got an aftermarket ATF cooler on there then yeah, you could do the same thing for the oil, though you'd want a thermostatic sandwich plate to avoid over-cooling.

imo, placing oil cooler in the middle of engine and immersing in coolant not a good design in the first place ..
 
never seen a japanese car having similiar design..

Toyota 1ZZ engines have an oil cooler that's surrounded by engine coolant.

first I need to buy from those engines to see.. second another bad design then ;D :P

;D Actually it works really well on the 1ZZ - gets the oil up to temperature much more quickly than it would otherwise and regulates the oil at a healthy ~88-90C even with an aftermarket oil-cooled plain bearing turbo strapped on ;)

The Japanese specification cars, oddly, lack the oil warmer cooler - it seems to only be fitted in Europe which suggests to me it was specifically designed for cold (Nordic .. and you ;D) climates :)

I'm guessing it's stainless steel since we've never seen one start leaking..
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cem_devecioglu

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #16 on: 03 March 2012, 22:48:28 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

But - unless you've got an aftermarket ATF cooler in there, your ATF cooler is in your radiator? If you've got an aftermarket ATF cooler on there then yeah, you could do the same thing for the oil, though you'd want a thermostatic sandwich plate to avoid over-cooling.

imo, placing oil cooler in the middle of engine and immersing in coolant not a good design in the first place ..
 
never seen a japanese car having similiar design..

Toyota 1ZZ engines have an oil cooler that's surrounded by engine coolant.

first I need to buy from those engines to see.. second another bad design then ;D :P

 ;D Actually it works really well on the 1ZZ - gets the oil up to temperature much more quickly than it would otherwise and regulates the oil at a healthy ~88-90C even with an aftermarket oil-cooled plain bearing turbo strapped on ;)

The Japanese specification cars, oddly, lack the oil warmer cooler - it seems to only be fitted in Europe which suggests to me it was specifically designed for cold (Nordic .. and you ;D ) climates :)

I'm guessing it's stainless steel since we've never seen one start leaking..

honda and renault produces cars here and they dont use oil heater ;D  and also russian cars dont use.. so I dont think heating oil is a must.. of course oil cooling is different..
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Andy B

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #17 on: 03 March 2012, 23:19:59 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

Just realised exactly what model you have. Yes, your ATF cooler is oil/air  :y :y

The Senator did use a small radiator in/under the front driver's side of the car for the engine oil, as suggested by Chris, it used a 'stat in the feed to it from the plate under the oil filter .............. often didn't work though.  ;) ;)
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aaronjb

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #18 on: 03 March 2012, 23:34:13 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

Just realised exactly what model you have. Yes, your ATF cooler is oil/air  :y :y

I thought the 3.2 had the ATF cooler in the rad like the others? Ah well, you learn something new every day! :)
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Andy B

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #19 on: 03 March 2012, 23:35:38 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

Just realised exactly what model you have. Yes, your ATF cooler is oil/air  :y :y

I thought the 3.2 had the ATF cooler in the rad like the others? Ah well, you learn something new every day! :)

Apparently not ........ I only know via the forum - never taken enough notice of others' cars  ??? ;)
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aaronjb

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #20 on: 03 March 2012, 23:45:02 »

nooo lol.... blank the oil cooler off in the vee then have an external oil cooler like the atf cooler currently on it ;) no contamination then mmmm :P

Just realised exactly what model you have. Yes, your ATF cooler is oil/air  :y :y

I thought the 3.2 had the ATF cooler in the rad like the others? Ah well, you learn something new every day! :)

Apparently not ........ I only know via the forum - never taken enough notice of others' cars  ??? ;)

I guess I'll find out if & when I have to pull the rad from mine  :y
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albitz

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #21 on: 03 March 2012, 23:45:46 »

A little rad which sits between the water rad and the A/C condenser.Got one in the shed if anyone wants one to use as an oil cooler. ;D
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2woody

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #22 on: 04 March 2012, 10:01:13 »

I have an "S"-plate car which has the separate transmission oil-to-air cooler between the aircon matrix and the main radiator, so I'm assuming that they changed about then.

All of the stainless vee-type coolers are very robust - I've yet to see one leaking.

The main oil-relasted problem is that the mass coolant temperature is a bit high in the 54degree engine, allowing the oil to run hot as they share the same coolant. If you have some tuning in mind, then I'd look to improvements to the coolant temperature first and oil temperature second.

To get the best of both worlds, you'd leave the vee-cooler in place and supplant it with an auxiliary oil-to-air cooler, for which the transmission one would be ideal PROVIDED IT CAN TAKE THE PRESSURE. Youi'll get the benefits of fast oil warming and ultimately low oil temperature, too.

I have run Omega B with a separate oil-to-air cooler in the front bumper. The only difficult part was routing the hoses from the back of the block (by the filter) around to the bumper - and this was on a car that had already had an aircon-ectomy. I still have the hoses if you want them.Tell you what, I'm coming past Rotherham tomorrow evening, so I'll put them in the car for you. You must ring me tho, as I won't see any e-mail between now and then.

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TheBoy

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #23 on: 04 March 2012, 10:01:57 »

Engine oil cooler - the best option is to still with teh original setup. To reduce chances of failures - and yes, stainless ones fail as well - properly keep on top of fluid changes, esp coolant. Corrosion inhibitors in the coolant are often overlooked ;)


ATF coolers - in OS of rad on early models, a seperate rad sat between condensor and main rad on later cars.
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TheBoy

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #24 on: 04 March 2012, 10:02:54 »

I have an "S"-plate car which has the separate transmission oil-to-air cooler between the aircon matrix and the main radiator, so I'm assuming that they changed about then.
No, much later....
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tunnie

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #25 on: 04 March 2012, 10:04:51 »

thought it was with the DBW engines?  :-\
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2woody

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #26 on: 04 March 2012, 10:26:24 »

it may have been an option on earlier cars, this one of mine definitely had it from new, but it was ex-plod.
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albitz

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #27 on: 04 March 2012, 11:16:12 »

Engine oil cooler - the best option is to still with teh original setup. To reduce chances of failures - and yes, stainless ones fail as well - properly keep on top of fluid changes, esp coolant. Corrosion inhibitors in the coolant are often overlooked ;)


ATF coolers - in OS of rad on early models, a seperate rad sat between condensor and main rad on later cars.

Yep.My estate is a 2002 2.6,so would have had a stainless cooler.Had cooler failure at 90,000.Probably never had a coolant change from new.
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TheBoy

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #28 on: 04 March 2012, 12:04:33 »

it may have been an option on earlier cars, this one of mine definitely had it from new, but it was ex-plod.
Wonder if plod had a more meaty option.  Not aware of it being in the options list for retail.
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sassanach

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Re: gearbox oil cooler to cool engine oil instead...
« Reply #29 on: 04 March 2012, 14:39:55 »

there is a very simple answer to all this, an auto gearbox cooler is designed to withstand virtually no pressure (as the return line to the box simply dumps the oil back into the sump)however your engine oil cooler has to withstand pressures which might reach(on a cold winter morning)100 psi. i'm sure you gentlemen can figure out the implications :y
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