Hott Boy's Garage - Ep. 4 - How To Degree a Cam (Honda TRX450R/CRF450R Unicam)
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- Опубликовано: 28 июл 2024
- Welcome to Hott Boy's Garage - a channel where I aim to create some helpful content around stuff that interests me. Episode 4 is a long and detailed video that shows how to degree a camshaft and find a cam's intake centerline on a Honda 450cc based single cylinder unicam engine. See the video outline below if you'd like to jump to certain sections of the video you might be interested in. Make sure you subscribe to the channel and stay tuned for content.
Instagram: / hottboysracing
Facebook: / hott-boys-racing-15915...
Web site: www.garyhott.com
Video outline and timestamps:
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Degreeing - What/Why? & Camshafts Explained - 0:00
Tools and Parts Needed - 6:57
Cam Timing and Where Power Is Made - 13:32
Verifying Cam Timing is Correct - 16:45
Checking Valve Clearance/Lash and Setting it to "0" - 20:37
Flywheel Removal (if needed) - 26:44
Degree Wheel and Dial Indicator Setup - 35:52
Setting Degree Wheel and Pointer to True TDC - 37:42
Using a Dial Indicator to Get Readings at 0.050" - 41:55
Calculating Intake Lobe Centerline - 46:14
Closing Remarks - 49:11
Product Links:
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Web Camshafts Degreeing Page: www.webcamshafts.com/pages_mis...
CRFs Only Valve Shim Calculator: www.crfsonly.com/calculators/...
Racers Edge AZ: www.racersedgeaz.com/
Web Camshafts: www.webcamshafts.com/
04/05 Web Adjustable Cam Gear: www.webcamshafts.com/pages_veh...
Mitutoyo Digital Caliper Number 500-196-30 with NIST Certificate, Inch and Metric Ranges 8647A43: www.mcmaster.com/catalog/126/...
Mitutoyo Dial Indicator Model Number 2416S-10, with Continuous Dial and NIST Certificate 2246A47: www.mcmaster.com/catalog/126/...
Dial Indicator Stem Extensions: www.amazon.com/gp/product/B01...
Needle Tip Dial Indicator Attachments: www.amazon.com/gp/product/B07...
Craftsman 3/8" Drive Torque Wrench: www.lowes.com/pd/CRAFTSMAN-3-...
NOGA Dial Indicator Base: www.mscdirect.com/product/det...
Motion Pro Flywheel Puller: www.rockymountainatvmc.com/pa...
Hot Cams Degree Kit: www.rockymountainatvmc.com/pa...
Hot Cams Shim Kit: www.rockymountainatvmc.com/pa...
Moroso Pro Degree Wheel: www.amazon.com/Moroso-62191-1...
Motion Pro Degree Wheel: www.amazon.com/Motion-Pro-08-...
Craftsman Feeler Gauges: www.lowes.com/pd/CRAFTSMAN-Au... 
Авто/Мото
Get em Jeff haha. Good video on this. I do it a little different but I like this video. It showed me a couple different ways I should mount my indicator and I like that moroso wheel and your custom degree wheel holder. Definitely need to have me one made. If you have any extras I’d love to purchase one! Excited to use the way on mine next TT build.
Excelente video muchas gracias 👍
nice vid!
The edits and overlays are getting good! Lol Doing good dawg! 💪🏼
Ty buddy, working on it!
@@HottBoysRacing I ve bought a crf450r and it has a hotcam installed and the sprocket has been slotted, it starts really hard when hot , cold usually starts ok. Can i put a stock sprocket back and setup normally? It will solve starting issues? Also backfires alot , tuned the carb 1000 times and no difference. Thanks
@@AlexRR1 - there's no way to really know tbh. It depends on where the intake center line is currently with the slotted gear and where the intake center line would end up with a stock gear. Some of the Hot Cams come straight up from the factory, some come advanced and some come retarded...so there's no real way of knowing without putting a degree wheel on it. The issue you described sounds more like valve lash being too tight, or maybe cam timing being off a tooth..or possibly even a spun cam flange...is your cam flange welded?
@@HottBoysRacing haven’t looked if is welded cause I didn’t know that can be a problem😬, valves are in spec, timing is straight .. everything looks perfect, top end done, i have this bike 4 years now and put on it like one hour
can you do a video showing the process of how you would adjust the spocket and determin how much to move it
I haven’t found an exact science to that yet. For me, it’s mostly been A LOT of trial and error..and usually a little bit of movement on the sprocket will equate to more cam timing movement than you think.
Awesome video, it was really helpful on dialing mine in. Out of curiosity what range of power could be seen in an all-out CRF450 engine? I know there a lot of variables with dynos and everything else.
Too many variables to really say. Engine size, camshaft profile, and port layout will dictate a lot of it. Each dyno will also read differently.
Great video, have a question for ya.
On my kids crf 150r (same crf head design) the camsprocket alignment is off slightly to clockwise direction after setting the other marks correct.
What can cause this? Cam slipping or can this happen after timing chain stretch? Engine is completly stock
When you say that it's off slightly - how far is slightly? If it's just a hair or two off, that can certainly be caused by timing chain stretch...depending on how many hours are on the engine. Have you attempted to rotate the cam gear one tooth to see if that aligns the marks perfectly (indicating that it *could* have jumped a tooth)?
HEY THERE....SEEN A FEW vids on this subject...great job really helped get my head around cam science.....BEST I HAVE SEEN!...Where did you get the piston stop?? cant find a 12mm tool...
Thanks, glad it helped! The Hot Cam's degree kit comes with a few different threaded piston stops.
Can you make a video how to degree gy6 engine camshaf waching from puertorico
Sorry I don't have a GY6 engine
Awesome video. Been always kind of curious of doing this. Question isss.... Can I do this with my Stage 3 hot cam and make any gains? Also... Make sure that you Monetize these.... You deserve to make money off these videos sir! I'm Ryan1994Wright of the Forums.
Thanks man! I think I've gotta get to 1k subscribers before they'll let me do anything like that. Also - FYI, those Stage 3 hot cams have been known to come in quite a few degrees advanced from the factory...so if yours is like that, you may be able to retard it a bit and move power up in the RPM range to pick up some top end power!