What method do others use to flush out an oil cooler?
Thanks,
Tracy

For?

In the car, out of the car, during an oil change, installing a used one? What?

I will be pulling the engine and trans out of the 83 and installing it into the 84. I am going to clean and flush all that stuff out as I do the switch over and am looking for advice from those of you that have gone there before.
Thanks,
Tracy

Sorry Forced,
My post was cut off... This will be out of an 84 300D turbo. It will be out of the car as well, so is there something that I can soak it in to break up the goo in it and then dry it out with low pressure air.
Thanks,
Tracy

Kerosene is what i'd recommend for bein least toxic to oil if some gets left behind.

A bunch of brake cleaner then blow air through it for a while? That'd be sure to clean out junk.....and it evaporates....so there should be none left if some air is blown through and you let it sit with the ends open to the air for a while.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

what about diesel fuel?

i find it works good to clean grease and oil

__________________
1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,

Hmm....I've never even tried using it for that....probably because of the powerful smell....brake cleaner leaves no odor once it has evaporated.....

I might get some kerosene sometime and see how well that works.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Take it to your local radiator shop and let them boil it out and get all the crud out. The passages are way too small for you to clean it effectively. Mazdas use very large oil coolers because oil does alot of the cooling in these engines. On my race car, after I had the shop clean it the oil temp was 25 degrees cooler under full load, and coolant temp was 15-20 degrees cooler. A very good shop will have an ultrasonic hot tank that vibrates all the junk loose and they flush it out.

__________________

Karl B
95 E300 D
2006 Mazdaspeed 6
2001 GMC Yukon XL
1997 Contour SVT
Mazda RX-7 SCCA race car

www.peachparts.com/shopforum/showthread.php?t=197825 fllushing out oil coolers.

I got a different reaction when I asked this question.

what I ended up doing is use some gasoline to rinse back and forth, dump it out use some clean gas a couple times. then for a final flush a few times, I used Wax and grease remover. this is the stuff they use in automotive paint ships to remove oil, grease, wax and silicone before sanding and painting a car. the stuff I used is a PPG product.

when I was through, it was clean. also this stuff evaporates and leaves no residue.

Charlie ☺

__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

Racekar is right, a radiator shop will be able to clean and inspect it for cheap.

X2

Thats your best option. They do make a big difference and are worth cleaning.

__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Thanks guys,
I have just started down the road to enjoying these great cars. I'm new here and will be asking a lot of questions. I have an 84 300D turbo body that I purchased from a member here. Now I have bought an 83 300D turbo as well.
The 83 is a rust bucket but runs and shifts great. So that being said I will transplant from the 83 what i can to make the 84 drivable. I figured that it would just make sense to flush out the oil cooler while I'm in this deep! Can you say getting to know these cars real fast!
Thanks again,
Tracy