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oil cooler question by allsierra123 on 04 Sep, 2008 20:15
any idea where I can pick up an external oil cooler kit for an AAZ?
#1 by zukgod1 on 04 Sep, 2008 20:50
Any salvage yards around ya?

Pull one off a Turbo Saab.
They not only have the sandwich plate that has a thermostat in it but a good cooler as well.
#2 by Vincent Waldon on 04 Sep, 2008 20:55
Turbo Volvo's are a direct bolt-on as well.
#3 by zukgod1 on 04 Sep, 2008 20:58
That may be what I meant :?
I cant remember now what I pulled mine off, I think it was a Saab...

It fits and seems to work but till I get a oil temp gauge I'm totally guessing..
#4 by Vincent Waldon on 04 Sep, 2008 21:19
Andrew: if I remember from a post a long time ago at least at one point you were running both the stock water/oil cooler *and* an additional air/oil cooler ??

Giving additional oil cooling some thought but I like how the stock water/oil helps get the oil up to operating temp quickly... if my memory above is correct I'd be interested in your experience from a plumbing perspective... somehow I can't imagine stacking two sandwich plates ??!!!! :wink:
#5 by jackbombay on 04 Sep, 2008 21:26
Quote from: "libbybapa"
Sandwich plate:

http://www.bahnbrenner.com/vw_audi/products/1395/Mocal_Thermostatic_Sandwich_Plate_4cyl

Oil cooler:

http://store.summitracing.com/partdetail.asp?part=DER-15830&view=16383&N=700+4294924500+4294839034+4294854215+4294782875

Thermo switch:

http://store.summitracing.com/partdetail.asp?autofilter=1&part=DER-15721&N=700+115&autoview=sku

Or adjustable thermoswitch:

http://store.summitracing.com/egnsearch.asp?N=700+115+309447&D=309447

I gotta say, the adjustable controller is the shiznit for a ton of applications. I used it on my VNT Mercedes to control the afterrun pump for the turbo, after spending 3 times as much on a relay kit and various sensors. They were either boiling after shut down or ran forever. The adjustable, dialed it in right away. Only turns on if the coolant is going to boil and shuts off right away after the turbo is cooled. Thumbs up.

Andrew

I have a mocal thermostatic sandwich plate, and I can't say I'm particularly impressed with its ability to stop oil flow to the cooler before the oil is up to temp, but there aren't really any other options :-/

Anyone witha Volvo one care to comment on its ability to stop flow to the cooler when the oil is still cold?

That adjustable temp switch is BOSS! I've looked for one before but never found one, thanks for the link! Wooo WOOOO!!!!!
#6 by zukgod1 on 04 Sep, 2008 21:30
I just looked and mine is off a Volvo not a Saab :oops:

AS near as I can tell it stops the oil flow through it completely when it's not warm enough to open the t stat.
#7 by jackbombay on 04 Sep, 2008 21:35
Quote from: "zukgod1"
AS near as I can tell it stops the oil flow through it completely when it's not warm enough to open the t stat.

Did you have an oil temp gauge before and after the oil cooler install?

My oil warms up notably slower after the oil cooler install than before, and when its cold out I have to drive it pretty hard to keep it above 190*

Sounds like I might be hitting up some junkyards on my next roadtrip looking for some turbo volvos

I hope the fittings are the same...
#8 by allsierra123 on 04 Sep, 2008 22:06
from What i just read the volvo and the saab may use the same oil cooler. SO over cooling could be a possible side effect.
#9 by jackbombay on 04 Sep, 2008 22:24
Quote from: "allsierra123"
SO over cooling could be a possible side effect.

Not with the volvo sandwich plate it seems, I have the mocal, linked by libby earlier, which I am not all that impressed with, although tencent on thesamba has the mocal and is happy with it. Maybe mine is defective?
#10 by allsierra123 on 05 Sep, 2008 05:54
Well I dont mind a used sandwich plate. But what about a used cooler should I be worried about failure?
#11 by allsierra123 on 05 Sep, 2008 05:57
Is this what your talking about but it doesnt look like a sandwich plate.

http://cgi.ebay.com/ebaymotors/VOLVO-760-TURBO-740-OIL-COOLER-SET-UP-COMPLETE-HOT-ROD_W0QQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247QQcategoryZ46098QQihZ018QQitemZ280259152276QQrdZ1QQsspagenameZWD1V
#12 by zukgod1 on 05 Sep, 2008 06:43
Wow thats funny looking!

I don't worry about over cooling with the t stat controlled sandwich plate installed.

As far as being worried about failure goes the only thing that could really fail would be the hoses, get new ones and be worry free..

I replaced one of the two hoses that came on mine but only because it wasn't long enough, I ground off the pressed collars and reused the fittings.
#13 by Luckypabst on 05 Sep, 2008 06:44
I fully disassembled my Volvo sandwich plate to clean and replace the O-rings. I had to put the little valve in the freezer to get it to close fully. At an ambient air temperature near 100 degrees it would remain open by about 30%.

Chris
#14 by jackbombay on 05 Sep, 2008 07:14
Quote from: "allsierra123"
Is this what your talking about but it doesnt look like a sandwich plate.

http://cgi.ebay.com/ebaymotors/VOLVO-760-TURBO-740-OIL-COOLER-SET-UP-COMPLETE-HOT-ROD_W0QQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247QQcategoryZ46098QQihZ018QQitemZ280259152276QQrdZ1QQsspagenameZWD1V

Thats not what the one on my 240 turbo gasser looked like, the one I am thinking of actually looks quite like the mocal one.