DWC's 1968 Camaro project

[DWC]

I've been putting some miles on the new engine and it's been doing fine overall. I have found an issue with power steering fluid leaking from the reservoir cap vent. After a 20 mile drive, the top of the cap will have PS fluid all over it with enough to run down the sides of the reservoir.

I'm using a new GM type II pump and a new Borgeson steering box with Royal Purple Max EZ fluid. It's tight quarters on the driver's side of the engine. I've wrapped the header tubes in that area and the PS lines have DEI fire sleeve on the them in that area as well. The PS lines come out of the steering box, then snake down next to the headers and around the driver's side engine mount, then back up to the PS pump.

I installed a fitting and tube in the cap this weekend to let the fluid drain to the ground. Not a fix, but kept the fluid from covering the reservoir.

I'm guessing my PS fluid's getting too hot and expanding out the cap vent. Any ideas on a fix for this? My guess is a PS cooler is in my future.

Daniel