CB350 Engine rebuild video

Stan Lipert

Member
Joined
Jul 10, 2023
Total Posts
28
Total likes
91
Location
Cleveland, Ohio
Hi, I'd like to share my CB350 engine rebuild video:


This is my long format (three hour!) video demonstrating a recent engine and carb rebuild, including some cleaning, inspection, refinishing and assembly with test run. Although not completely comprehensive, it is a rebuild of an actual engine in my home shop.

Time stamps will help navigate to your chosen viewpoint:

00:00:00 Introduction
00:00:25 Head disassembly
00:02:57 Cleaning the head
00:04:13 Bead blast cabinet
00:06:18 Prep for blasting
00:10:28 Clean the vales for inspection
00:12:18 Valve guide replacement
00:17:18 Ream valve guide
00:19:07 Measure the valve guide wear
00:19:32 Cut valve seats
00:22:05 Lapping valve seats
00:23:59 Inspect valve sealing
00:27:29 Valve spring inspection
00:29:32 Install the valves
00:32:34 Cleaning the crankshaft
00:36:36 Inspect the crankshaft
00:37:51 Crankcase inspection
00:39:43 Kickstarter
00:42:36 Crankshaft installation
00:46:12 Transmission
00:52:50 Bottom crankcase
01:00:34 Oil seals and neutral switch
01:02:56 Shift drum locator
01:04:55 Shiftshaft
01:06:45 Clutch plate inspection
01:07:48 Clutch basket
01:08:15 Oil pump
01:09:40 Primary drive gears
01:12:22 Clutch plates
01:16:17 Oil filter
01:19:43 Electric starter
01:28:27 Starter motor installation
01:34:31 Left engine cover
01:39:06 Clutch cover
01:44:37 Piston and cylinder inspection
01:46:36 Cylinder honing
01:49:19 Piston measurement
01:51:26 Piston ring end gap
01:51:57 Piston ring installation
01:52:41 Piston installation
01:56:50 Camchain tensioner rollers
01:57:50 Cylinder installation
02:02:42 Head installation
02:04:24 Camshaft inspection
02:06:16 Cam sprocket
02:06:49 Cam box
02:07:55 Tachometer gear
02:08:52 Cam bearings
02:09:36 Rocker arm inspection
02:10:14 Camshaft installation
02:13:54 Rocker arm installation
02:17:45 Top engine cover
02:22:04 Camchain tensioner
02:24:50 Valve adjustment
02:27:22 Ignition points
02:37:30 Stator cover
02:38:36 Sprocket cover
02:42:56 Carburetors
02:58:00 Ready to bench run
02:58:24 Ignition timing
02:58:44 Shifting test
02:59:13 Compression test
02:59:29 Cold start

PXL_20250905_101947516.jpg


I'm not making money from this, just a guy in his shop with a cell phone and tripod.
Enjoy!

Stan
 
Thanks for taking the time to do this and for posting it here. I’ll have to carve out some time to watch the entire video. The time stamp references are very helpful 👍
 
Stan Lipert said:
Hi, I'd like to share my CB350 engine rebuild video:


This is my long format (three hour!) video demonstrating a recent engine and carb rebuild, including some cleaning, inspection, refinishing and assembly with test run. Although not completely comprehensive, it is a rebuild of an actual engine in my home shop.

Time stamps will help navigate to your chosen viewpoint:

00:00:00 Introduction
00:00:25 Head disassembly
00:02:57 Cleaning the head
00:04:13 Bead blast cabinet
00:06:18 Prep for blasting
00:10:28 Clean the vales for inspection
00:12:18 Valve guide replacement
00:17:18 Ream valve guide
00:19:07 Measure the valve guide wear
00:19:32 Cut valve seats
00:22:05 Lapping valve seats
00:23:59 Inspect valve sealing
00:27:29 Valve spring inspection
00:29:32 Install the valves
00:32:34 Cleaning the crankshaft
00:36:36 Inspect the crankshaft
00:37:51 Crankcase inspection
00:39:43 Kickstarter
00:42:36 Crankshaft installation
00:46:12 Transmission
00:52:50 Bottom crankcase
01:00:34 Oil seals and neutral switch
01:02:56 Shift drum locator
01:04:55 Shiftshaft
01:06:45 Clutch plate inspection
01:07:48 Clutch basket
01:08:15 Oil pump
01:09:40 Primary drive gears
01:12:22 Clutch plates
01:16:17 Oil filter
01:19:43 Electric starter
01:28:27 Starter motor installation
01:34:31 Left engine cover
01:39:06 Clutch cover
01:44:37 Piston and cylinder inspection
01:46:36 Cylinder honing
01:49:19 Piston measurement
01:51:26 Piston ring end gap
01:51:57 Piston ring installation
01:52:41 Piston installation
01:56:50 Camchain tensioner rollers
01:57:50 Cylinder installation
02:02:42 Head installation
02:04:24 Camshaft inspection
02:06:16 Cam sprocket
02:06:49 Cam box
02:07:55 Tachometer gear
02:08:52 Cam bearings
02:09:36 Rocker arm inspection
02:10:14 Camshaft installation
02:13:54 Rocker arm installation
02:17:45 Top engine cover
02:22:04 Camchain tensioner
02:24:50 Valve adjustment
02:27:22 Ignition points
02:37:30 Stator cover
02:38:36 Sprocket cover
02:42:56 Carburetors
02:58:00 Ready to bench run
02:58:24 Ignition timing
02:58:44 Shifting test
02:59:13 Compression test
02:59:29 Cold start

View attachment 53848


I'm not making money from this, just a guy in his shop with a cell phone and tripod.
Enjoy!

Stan
Click to expand...
Thanks for this information! I will return to it again and again.
Your depth of knowledge is such that I suppose you were a Honda mechanic at one point. Just out of curiosity:
What year and how many miles on the CB350 being rebuilt?
 
Thanks for posting this. I used it as a reference when building up my own engine - very clear and detailed. And I'm jealous of your workshop!
 
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