Project Eagle - 1974 Honda CB450
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40 Posts
Some scoring and pitting in the Cylinders that were too deep for honing so I brought them to a machine shop
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Bored 0.5mm over
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Some new pistons to match
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Also got my parts back from powder coat, minus the frame. They look amazing in satin black
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Bored 0.5mm over
Some new pistons to match
Also got my parts back from powder coat, minus the frame. They look amazing in satin black
Joined
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40 Posts
Got the tank back and it's all clean inside. Glad I can still use the original tank
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Cleaned the side covers and tank again. Not a ton of paint left but keeping it original for now. Debating on leaving the dents for some character or trying to pop some out
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Cleaned the side covers and tank again. Not a ton of paint left but keeping it original for now. Debating on leaving the dents for some character or trying to pop some out
Joined
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40 Posts
Back to engine reassembly.
Setting the ring gap
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Installed the rings on the new pistons
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Installed with new wrist pins and new bottom gasket
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New seals and oiled the cylinders for install
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Cylinders on
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Starting on the head
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Lapping the valves
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Valves installed
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New guide seals
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Setting the ring gap
Installed the rings on the new pistons
Installed with new wrist pins and new bottom gasket
New seals and oiled the cylinders for install
Cylinders on
Starting on the head
Lapping the valves
Valves installed
New guide seals
Joined
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185 Posts
Hello, that's some mighty clean workmanship, A+, what method was used on bottom crankcase, very nice. can you tell us what brand pistons, and what is the black coating?
Cam bearings, covers look great, good photos, gotta love it. Keep us updated. HondaJohn
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40 Posts
Cleaning method? It was vapor blasted.
New pistons are Pulsar from Common Motor Collective.
The black coating is satin black powder coat.
Looks like a great project and workmanship! I believe that the Pulsar Pistons are a new item for Common Motor. Their video on YouTube suggests they are high quality. I've not been able to locate availability of those pistons at any other vendor. I would appreciate your view on the quality once you've had time to test drive the bike. Thanks.
Joined
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40 Posts
Thank you.
Yes they are, Brenden hooked me up with them before they went live on their site. Have ordered a lot of parts from them, and am using their videos and advice extensively to do this work.
Joined
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40 Posts
I would say I'm taking a middle of the road approach. No hand sanding. After they were vapor blasted, I started with a soft 240 grit wheel on the bench grinder. Then work my way through black, brown, green, white, blue compounds on some cheap buffing wheels.
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