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Remote Oil Cooler Installation

Pelican Technical Article:

Remote Oil Cooler Installation

Tom Sharpes


3-5 hours






Metric socket and wrench set, Phillips and Flathead screwdrivers, power drill, metalworking drill bits, tin snips, anti-seize.

Applicable Models:

Porsche 911 (1965-89)
Porsche 912 (1965-69)
Porsche 930 Turbo (1976-89)

Parts Required:

Mocal radiator style 19 row cooler, Mocal thermostat, 30mm to 12AN adapters, -12AN hoses.

Performance Gain:

Improves engine cooling performance.

Complementary Modification:

Add an electric fan with a manual switch for on the fly cooling.

A common problem for these cars is a tendency to run very hot - especially in hot weather. Later model were equipped with remote oil coolers located in the passengers side front wheel well -just behind the headlight. My car would run at 245 - 250 degrees when driving on the freeway and go even higher when sitting in traffic, so I decided to install an oil cooler system to get the temps down and prolong the life of my engine.

I decided to use a Mocal radiator style 19 row cooler for the most efficient cooling and fabric covered, braided steel hoses connected to their unique thermostat as a cost effective and flexible system for my car. This is not like the OEM set up, but the cost to achieve the same result is dramatically less. The total drop in temperature this modification provided was 45 degrees.

The cost of this system through Pelican Parts is less than $700.00 compared to easily twice that using the brass tubing and less efficient loop style cooling unit. Again, I am not trying to keep my car factory original so that enables me to search out and use alternative solutions to solve the unique problems encountered on these cars. That's what my web site is all about.

Now, on with the show !

Radiator Cooler Installation

In preparation for mounting the  cooler one of the horns had to be moved to the other  side of the bracket to allow room for assembly.

After positioning the upper mounting bracket  I removed the headlight and drilled a  hole in the rear of the bucket for an attachment point.

The position of the hole is far enough back in the bucket that it does not interfere with the headlight assembly.

I used a small rubber washer on the cooler side to dampen any vibration .

The lower mount was secured with a bolt through from the trunk. Another rubber washer was used under the bracket for vibration.

The mounted unit is very tight and secure. Keeping the cardboard on during this installation will protect

I removed the cooler to install the hoses being very careful to use a wrench on the cooler fittings while tightening the hose fittings.

The shield I had needed to be trimmed to fit the cooler because it is not the same configuration as the stock units.

The complete cooler assembly ready to install.

The cooler installed in the fender. I routed the hoses up over the top of the wheel well to go back to the engine.

The hoses are pretty flexible. I ran them around the corner of the back of the wheel well and down the side of the car. Both hoses fit into the rocker cover and are not visible from the side. They are also protected from jacking plates.

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Comments and Suggestions:
79 Euro Comments: Is the stone guard that you "trimmed" 930.207.319.14 for $73.50?
February 13, 2011
  Followup from the Pelican Staff: Yes, that should be the correct PN for the stone guard. - Wayne at Pelican Parts  
79 Euro Comments: I thought the Mocal was a direct replacement for the trombone oil cooler, so when I buy the Mocal 19 row oil cooler from Pelican, do I need to buy a new thermostat? Do you sell the stone guard separately? Part #? Anything else needed for the install in my 1979 911 Euro SC?
February 13, 2011
  Followup from the Pelican Staff: The MOCAL kit is a replacement for the front mounted trombone cooler. Other than some fitment issues (it's not made specifically for the 911), you shouldn't need new pipes or a new thermostat. This, of course, assumes that your car is equipped already with a front-mounted oil cooler. - Wayne at Pelican Parts  
Red Chi Comments: On a scale of difficulty from 1-10 10 being very difficult how would you rate this installation for a person that isn't knowledgeable or mechanical with autos. How many hours would you estimate that this job would take a person as described.
September 3, 2010
  Followup from the Pelican Staff: For someone who hasn't worked on cars before, I would estimate this would take about 20-40 hours. But that includes a lot of learning how to use the tools, and also trips to Sears, etc. to purchase the correct tools for the job. - Wayne at Pelican Parts  

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Page last updated: Sun 2/18/2018 02:23:52 AM