Today I installed Bob's Auto Sports firewall mounted oil separator kit. I have to say, this is the nicest looking kit you could install on any S197 Mustang. Some may ask, "Why would I choose this kit over the simple plug and play version from JLT?" The answer is, because it filters out virtually everything, not just some of the oil vapor that passes through the PCV system. It's also not the least expensive kit, but you get what you pay for.
You have a few different color choices, and Steve at Bob's Auto is working on a powder coat color that is close to Sterling Gray. Still pending :beer:
Bob's Auto Sports Mustang 5.0 firewall mounting kit
I started by removing the strut tower brace, plastic engine cover, and stock PCV tubing.
Then I removed the passenger side cowl cover.
After that, I used the included metal bracket as a template to drill both holes in the firewall. Pro Tip: Reverse the drill, so the bit can cut through the firewall insulation without ripping it apart. This will make a hole in the insulation. Now change the drill's direction forward to cut through the metal. I held the bracket in place while I drilled both holes to insure they were in the correct location.
Now you are ready to mount the oil separator. Use an 11mm fitted wrench on the engine side, and a ratchet with an 11mm socket on the windshield side.
Moving on, you have to remove the factory OEM tubing from both PCV connectors. I used a very old, cheap hair dryer on high power to heat the ends. They will expand, then you simply pull them out of the tube. You may have to pull hard.
Notice that engine oil is already starting to accumulate on both PCV connectors. The car only has 1,800 miles on it.
The kit includes beautiful AN fittings on the separator with shrink hose clamps on the engine side. A nice finishing touch. I cut the bottom hose on the oil separator to a length of ~12.5", measured from the end of the AN fitting. This allowed a perfect fit to the OEM PCV connector. Again, using the hair dryer, I heated the shrink clamp up until it tightly grasped the hose and connector. No worries of heat removing this connection.
The top hose will terminate on the engine right behind the throttle body. I do not recall the overall length of the hose after cutting, but I did have to remove 6.25" of supplied hose to make it a custom fit. I could have left it full length, but decided to trim some away to give the future twin turbo upgrade room for installation. Using the second supplied shrink clamp, I heated it until it was secure.
Time to put the plastic cover and strut tower brace back into place. Complete, you now have a finished installed. The top hose can be moved around a little. You could secure it to the other hose with zip ties, or other methods. I opted to let it rest on the other PCV connector.
I added a couple of zip ties to keep the hoses together. Not so tight, as I didn't want to collapse the hose.
In the next many miles I will monitor how much oil was removed from PCV air traveling back into the engine's intake.
You have a few different color choices, and Steve at Bob's Auto is working on a powder coat color that is close to Sterling Gray. Still pending :beer:
Bob's Auto Sports Mustang 5.0 firewall mounting kit
I started by removing the strut tower brace, plastic engine cover, and stock PCV tubing.
Then I removed the passenger side cowl cover.
After that, I used the included metal bracket as a template to drill both holes in the firewall. Pro Tip: Reverse the drill, so the bit can cut through the firewall insulation without ripping it apart. This will make a hole in the insulation. Now change the drill's direction forward to cut through the metal. I held the bracket in place while I drilled both holes to insure they were in the correct location.
Now you are ready to mount the oil separator. Use an 11mm fitted wrench on the engine side, and a ratchet with an 11mm socket on the windshield side.
Moving on, you have to remove the factory OEM tubing from both PCV connectors. I used a very old, cheap hair dryer on high power to heat the ends. They will expand, then you simply pull them out of the tube. You may have to pull hard.
Notice that engine oil is already starting to accumulate on both PCV connectors. The car only has 1,800 miles on it.
The kit includes beautiful AN fittings on the separator with shrink hose clamps on the engine side. A nice finishing touch. I cut the bottom hose on the oil separator to a length of ~12.5", measured from the end of the AN fitting. This allowed a perfect fit to the OEM PCV connector. Again, using the hair dryer, I heated the shrink clamp up until it tightly grasped the hose and connector. No worries of heat removing this connection.
The top hose will terminate on the engine right behind the throttle body. I do not recall the overall length of the hose after cutting, but I did have to remove 6.25" of supplied hose to make it a custom fit. I could have left it full length, but decided to trim some away to give the future twin turbo upgrade room for installation. Using the second supplied shrink clamp, I heated it until it was secure.
Time to put the plastic cover and strut tower brace back into place. Complete, you now have a finished installed. The top hose can be moved around a little. You could secure it to the other hose with zip ties, or other methods. I opted to let it rest on the other PCV connector.
I added a couple of zip ties to keep the hoses together. Not so tight, as I didn't want to collapse the hose.
In the next many miles I will monitor how much oil was removed from PCV air traveling back into the engine's intake.
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