Oil Cooler Malfunction
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Road Master
Joined: Oct 2008
Posts: 970
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From: Philippines
Oil Cooler Malfunction
The bike in this story is a Road King but this situation could apply to any model. I'm retired military living my final years in the Philippines. I have a small shop where I wrench on my bikes and help other Harley riders who break down when passing through my area.
A friend realized his Road king was leaking oil when he exited a freeway by the amount of smoke coming off his bike. He had no indication of a problem while cruising at 80 miles an hour. Within a short 30 minute ride he lost 2 quarts of oil which covered the bike. He limped into my shop and after letting the bike cool down and scrubbing the oil off, we discovered that his Jagg Oil Cooler Filter Adapter had worked loose. Additionally I noticed the adapter was installed without the Jagg Anti-Rotation device.
The problem was a little difficult to diagnose. At idle, there was no leakage. Most of the oil was covering the middle and upper parts of the engine and the rear of the bike. There was very little oil around the adapter. The loose adapter was only discovered when cleaning the bike.
Apparently high RPM's were necessary to blow oil out the loose adapter and at 80 miles an hour, wind accross the bike doesn't necessary travel straight back but also upwards.
The lesson I learned from this is that I'll double check the tightness of my oil cooler filter adapter when changing oil on my bikes.
A friend realized his Road king was leaking oil when he exited a freeway by the amount of smoke coming off his bike. He had no indication of a problem while cruising at 80 miles an hour. Within a short 30 minute ride he lost 2 quarts of oil which covered the bike. He limped into my shop and after letting the bike cool down and scrubbing the oil off, we discovered that his Jagg Oil Cooler Filter Adapter had worked loose. Additionally I noticed the adapter was installed without the Jagg Anti-Rotation device.
The problem was a little difficult to diagnose. At idle, there was no leakage. Most of the oil was covering the middle and upper parts of the engine and the rear of the bike. There was very little oil around the adapter. The loose adapter was only discovered when cleaning the bike.
Apparently high RPM's were necessary to blow oil out the loose adapter and at 80 miles an hour, wind accross the bike doesn't necessary travel straight back but also upwards.
The lesson I learned from this is that I'll double check the tightness of my oil cooler filter adapter when changing oil on my bikes.
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