GregBBRD

Unless they recently have changed back to their original design, I do not think that the CSF representative you spoke with has current information.
Although I wish they were not, the fittings have been welded in, for quite some time.

Geo55

Bought mine from Mark beginning of 2019 and they were not welded.

islaTurbine

I could have sworn that mine had a production date stamp somewhere on it but now I can't find it since it's been painted and is already installed. It was purchased about 2 months ago and came with the metal upper nipple and the metal drain plug, which I don't think the earlier versions had. The warranty tag on the bottom says "8029 J20120938"

islaTurbine

Paging @Mark Anderson or @CSF Cooling

CSF Cooling

Hi Everyone,

here to answer some questions.

1) We have not changed the design recently - everything is the same as it has been for several years since the last improvement revision (we're always trying to improve)
- Here is a full press-release on the radiator with more details if anyone wants to see more info on it: https://csfrace.com/world-exclusive-...r-porsche-928/

As you can see from the pictures - the oil cooler bosses are welded - this is the actual oil cooler inside the tank welded to be held in place. then the fitting is torqued down to mate to the oil cooler inside the tank. This is what the green and yellow line on the cooler near the oil cooler connection - it's the inspection markers by our QC department

2) There is a QC sticker on the bottom of the radiator - it's 9 digits and starts with the letter "J"

please let me know if anyone else has any questions

islaTurbine

@CSF Cooling
Thank you for chiming in on this.

GregBBRD

This is terrific to know! I was not paying close enough attention to notice this.
I make a three oil cooler hose conversion for the 1990-1995 928's with oil cooler below the radiator...which is virtually useless in traffic on a hot day.
This conversion allows use of a radiator oil cooler, plus the under radiator cooler...the best of all worlds. The additional radiator cooler both cools better in hot weather and warms up the oil faster, in cold weather.
The CSF radiators with welded fittings made this conversion virtually impossible and was one of the big issues with these radiators, for me.

Thanks for the heads up/new knowledge!

Geo55

So I wonder since they had changed the design several years ago, why I got one that didn't have the welded fittings. Bought mine < 2 years ago and paid full price for it. Since this was an improvement, I would think the old was outdated or something. Hmmmmmm.

Geo55

So CSF, how tight do you tighten the fittings on the old radiator that does not have the fittings welded? (Since there were no instructions on that when purchased).

islaTurbine

CSF said that the bosses are welded now, not the fittings. So I think yours (and mine) would be the most up to date.

Geo55

Ahh, Thank you isla Turbine for the clarification. I still wonder if the paint marks were put there so as not to tighten them any more. I just did what I had assumed was correct. So far it hasn't leaked.

firemn131

I am installing my CSF today, and one of the fittings was not tight.

i’ve pulled off the fitting and noticed that the O-ring had a nick in it as well. I had not tried to attach the lines at this point.

So two questions.

1. what is the torque for the double male fitting into the bung?
2. What is the part number for the o ring?

paging CSF?

CSF Cooling

Sorry about this issue - here is the info for tightening your oil cooler.1. what is the torque for the double male fitting into the bung?
Min. 8 In Lbs
2. What is the part number for the o ring? OD 22.6 mm, Dia 2.4 mm

GregBBRD

8 inch pounds definitely explains why they seem loose to people...