Oil Bud Oil Cooler Install - Baggers Magazine
Here is Curtis’ Road Glide.
Here is Curtis’ Road Glide.
01. To get started the bike was placed on the lift, the oil was drained and the oil filter was removed along with the nut the filter threaded on to. We also removed the right side floorboard to gain access to the frame mount and regulator bracket.
02. The Oil Bud kit cost $645.00 and came with the cooler powdercoated black to help keep it stealth and an aluminum adapter for the external oil lines to hook to. You also get two new oil lines, o-rings for the adapter, mounting hardware, zip-ties, and wire connectors for temp gauges.
03. Next, the 4 Allen head bolts were removed that hold the adapter together, we installed the hose fitting to the inside part that will mate to the engine case where the original filter went along with the new oil filter mount bolt (arrow), and the large o-ring.
04. Then we added the longer oil line to the adapter (the one with the gold end). Followed by bolting the two pieces together.
05. Here is the oil sending unit sensor and the thermostat in a nice clean shell.
07. Then, the long hose from the adapter was routed behind the regulator along the inside of the framerail above the cross member.
08. Next, the adapter was placed onto the engineís oil filter mount. There is just enough room to clear the oxygen sensor (arrow). Once everything was lined up the mounting bolts were torqued to 40 lb-ft.
09. The stock oil temp-sending sensor was removed and Curtis used a shorter one to clear the oil cooler.
10. To get the cooler to mount to the frailrails and line up with the mounting hole on the frame we brought up the left side of the cooler to about a 45 degree angle and slid it into the space in the frame, then the right side of the cooler up into place and inserted the bolt and supplied lockwasher.
11. The rear of the cooler installed easily and slid in above the rear stabilizer section of the frame with the tab resting on the frame (arrow).
12. Once the cooler was mounted the oil line was connected to the rear of the cooler (feed).
13. On the front right side there is a mounting tab on the cooler that lined up with the bolt for the floorboard (arrow).
14. Next, the shorter oil line was connected to the front of the cooler element (the return) and then routed up to the filter housing.
15. Then all the fittings were tightened and the oil lines were secured to the frame with a few zip-ties.
16. The floorboard was reinstalled and the brake lever was checked for clearance.
17. We added oil to a new oil filter then installed it onto the filter bracket. This helped at start up to build the oil pressure up right away. Then the bike’s oil tank was filled with fresh oil, we checked for leaks and fired up the motor. We took the motorcycle for a short ride and then returned and rechecked the oil level. After sitting overnight there were no leaks.
18. We happened to notice that we needed about a ½ half quart more oil than normal. The good thing is, the more oil flowing through the motor the better. The bike was brought up to operating temp and checked for leaks. Then the bike was taken out for a test ride and we started the watch the temp.
19. We ran the bike over the next two weeks, twice a day to and from work at the same time of day so we could see two different starting temps. In the morning the bike was running at 190 degrees with an outside temp of about 70 degrees. On the ride home the bike’s temp was running at around 198 degrees with outside temps of 85-90 degrees. Even when the bike was run well over 80 mph for more than 60 miles the oil temp never went above 205-degrees. Curtis was quoted saying, “this may be one of the best things I could have added to my bike to help the longevity of the engine and get the best out of every trip with out worries.”
We all know just how important it is to keep the oil flowing through the engine and from overheating which would break down the molecules of the protective additive package and not protect the motor parts. On an air-cooled motor how do you do this? Well you need to keep air flowing over the motor to cool the fins on the cylinders and heads. If you ride like me then going fast will do this but then you are pushing the motor a little bit harder, which also makes more heat. Well what can you do? Add an oil cooler, but which kind and which one works let alone looks good? I have seen and used all kinds of little coolers that hang from the frame rails but never really felt that they worked good enough, yes they worked but how well? To see that the motor oil is 10-15 degrees lower is good but how I ride, is it enough? And it needs to be up front to get airflow but then you can still see it. You could add a cover but then how well does it work?
There is another choice, one that mounts under the engine and transmission out of the line of sight and gets great airflow, the Oil Bud oil cooler. At first I was a bit skeptical about it being under the bike, it seemed that if something was to hit it or I forgot about it and went over a speed bump of something like that, it could cause it to leak and that was a worry. However after talking with Bud Clarke owner and designer of the Oil Bud and seeing all the videos on his website I felt it would withstand just about anything we could do to abuse it.
I was impressed to see that it was made out of extruded aluminum with machined fin tips throughout the cooler not rows of thin aluminum strips stacked and spaced around oil tubes. It mounts up a tad higher on the frame rails about the same as the crossover for the exhaust and trans hangs. After reading the instructions it was a straightforward install.
We have been using Horn Cycle Works in Pomona, California, as one of our go-to shops for a long time and we always bring bikes to get worked on and the guys are always up for helping out. So when one of their own shop bikes needs something or is having an issue we see it as more tech for the readers. The owner Curtis had said that his ’07 Road Glide seemed to be running hotter now that summer is on us. He asked us about oil coolers and if we knew anything about the one that hangs under the bike. I said, “I happen to know a bit about the Oil Bud,” and if he would like to get one and test it out? The answer was yes, so we got some running temps before and after the install. After a week of riding back and forth to work and all the weekend miles, the oil temp was around 245 degrees. In the end, we saw a big difference after the install and Curtis said the cooler was worth the $ 645.00 it cost. B
Horn Cycle Works **
(909) 392-8788 | hcwcustoms.com
(406) 457-2458 | harleyoilcoolers.com