Honda CB350 Twin - Camshaft Replacement
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- เผยแพร่เมื่อ 4 ส.ค. 2024
- Follow along as I replace the camshaft and rockers in my 1973 Honda CB350G with a refurbished set from Common Motor. This is actually the second time I’ve had to perform this fix. The first camshaft I received had some pitting in the shaft where it passes through the oil seal behind the points advance unit which was causing an oil leak. The awesome folks at Common Motor sent me a replacement kit which is what we’ll be installing today. If your camshaft is looking a little worn out check them out, you’re not going to find a better option for the price.
00:00 Introduction
02:57 Getting started, removing the tank, etc.
05:23 Removing the camshaft cover without removing the engine
06:58 Removing the cam chain tensioner
07:23 Removing the tappet covers and cam bearings
08:12 Removing the cam sprocket bolts
10:03 Removing the camshaft
10:49 On the bench, camshaft pitting, replacement camshaft
13:08 Cam lobe and rocker wear patterns
13:54 Installing the refurbished camshaft from Common Motor
16:28 Cam timing, aligning the camshaft and the crankshaft
19:20 How to adjust the camshaft position if you're off by a few teeth
21:54 Preparing the rocker shafts for installation
22:22 Positioning the camshaft and crankshaft for cam bearing installation
24:46 Test fitting the camshaft bearings and double checking cam timing
25:50 Installing the camshaft bearings
26:10 Installing the cam chain tensioner
27:32 Adjusting the cam chain tensioner
28:27 Setting the valve clearances
30:39 Installing the cylinder head cover
31:37 First start with the refurbished camshaft and rockers
32:24 Noisy valves
33:49 Rechecked the valve clearences, let's try this again
34:03 Valves sound much better
34:28 The sweet sound of a Honda twin!
#CB350
#CamshaftReplacement
#CommonMotor - ยานยนต์และพาหนะ
Brilliant video, extremely informative, my Thanks from Dumfries in Scotland!
Excellent, enjoyed watching it in Bonnie Scotland, Thank You!
We cannot thank you enough for this fantastic video! You do a great service for this hobby/lifestyle.
I'm glad you found it helpful. Thanks for watching!
Nice job. You need to zen yourself out before attempting the timing/alignment of the chain and LT mark. Take your time and you will get there folks.
Hey, this is an extremely well made video. Extremely detailed and the actual filming and voice over is fantastic. Keep it up :)
I'm glad you found it helpful. Thanks for watching!
Michael. Just noticed you installed a volt meter. Do you have a video out for that? Thanks for posting this vid . Very helpful.
Camshaft and rockers should touch evenly over the entire serface.
That's what I figured. I'm tempted to pull the cover at the end of the season and see how the replacement set is wearing.
HI Michael, thanks for sharing this information reg. cam shaft refurbishment made by common-motors. I have a similar issue with my rocker and cam shaft from Honda CB 250 G and wonder how is satisfactio after a year. I consider to order this rebuilt parts too. Maybe you have some experience to share. Best..
So far I haven't had any issues with the second set I received. The bike seems to run well and I haven't had any oil leaks like I did with the first set.
@@michaelsams450 Good to hear, seem to be then a good investment. Thanks.
Very helpful video. Keep doing CB350K videos please. I've worked on CBs for years and never saw a lifter worn on a small section of it's edge. Could be lifter face not ground to correct shape? What does Collective say?
I didn't ask about the strange wear pattern because I so focused on the pitting that caused the leak. I'm tempted to pull the head cover over the winter to see if the replacement set has the same wear pattern. Thanks for watching.
@@michaelsams450 I know the K models had two different types of cams and rockers. I have never worked on a G model. I suggest you give Common a call to check compatibility.
@@michaelsams450 I'll take a guess and say the lifter bushing hole is not straight.
@@danuhr4212 The '73 G model was basically a K with a front disc brake. It uses the same later ('70, '71, '72) style cam/rockers as the K models.
@@danuhr4212 Certainly possible. From my understanding they weld the face of the rockers and then grind them back to shape. It wouldn't take much to get that face slightly off and cause that wear pattern. Same for the cam itself.