On finding there are no OCC kits specifically for B48/58 engines (except the BMS kit which requires installing their billet intake) I decided to improvise a mount for a generic oil catch can.
There is a convenient space between the engine fans and the stock airbox, within easy distance of the PCV valves. Under the hood catch is a gap about a half inch tall. In the bottom is a roughly 8mm hole that isn’t used for anything and which I used to mount the OCC.
Here’s the mounting location and path of the hoses:
And the bolt hole that will hold the improvised bracket:
Parts needed:
• Mishimoto compact baffled oil catch can, 2 port. This is a high quality generic OCC that has the ports at a 45 degree angle and a direction-adjustable mounting bracket. Which makes it the only one I could find that would fit in said location.
• Two hose barbs, 3/8” NPT threads and 19mm diameter on the hose end. I chose 19mm hose and barbs to match the size of the barb on the stock PCV connectors.
• HPS 3/4" (19mm) High Temp Reinforced Silicone Heater Hose. 5ft is a safe amount to buy but you'll use closer to 3ft.
• Piece of L-shaped hard plastic to improvise a mounting bracket. 45x40mm on one face, 45x10mm on the other. This will be attached to the bracket that comes with the OCC.
• Four hose clamps, 25mm diameter
• One 18x7mm nut and bolt. This is the longest that will fit in the gap where the bracket is attached.
• Two 15x4mm nuts and bolts.
• Medium strength threadlocker.
Tools required:
• Power drill
• Heat gun or hair dryer
• Allen key and Philips head screwdriver
1. Drill a hole for the 7mm bolt in the large face of the plastic bracket. Bolt the OCC bracket to one side of the narrow face with the two 4mm bolts and secure with threadlocker. Note the OCC bracket screw holes may have to be widened slightly.
2. Mount the bracket. Secure the 7mm bolt with threadlocker. Then attach the OCC to its bracket with the two screws provided. Angle the ports for the hoses to pass over and under the intake air duct.
3. Squeeze the two catches to remove the PCV connector from the intake air duct.
4. Remove the airflow sensor from the connector. With a heatgun on low, remove the stock hose from the PCV connector. Replace the airflow sensor. Replace the PCV connector to face the opposite direction to stock.
5. Attach 19mm hose to PCV connector. Secure with hose clamp.
6. Pass the OCC outlet hose around the air intake duct to the OCC. This will ultimately require a little more than one foot length of hose. It is better to allocate length to excess and trim as necessary to avoid compressing the hose into kinks. Secure with hose clamp.
7. With a heatgun, remove the stock hose from the PCV connector on the crankcase. It is not necessary to remove the connector from the crankcase.
8. Attach 19mm hose to PCV connector and secure with hose clamp.
9. Pass the OCC inlet hose under the intake air duct to the OCC. This will ultimately require approximately one foot length of hose.
10. When the hoses have been positioned to avoid kinks, tighten the hose clamps and the screws holding the OCC to the bracket. Installation is complete.
