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Author Topic: Just picked up a cb360. Stuck engine help.  (Read 805 times)

Offline irk miller

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Re: Just picked up a cb360. Stuck engine help.
« Reply #10 on: Jul 12, 2018, 00:01:39 »
They aren't that delicate, and they're not necessarily that precise.  I'd pull the top end off (tappet cover and head) and assess the damage.  A stuck engine is not necessarily pistons. 

Offline MiniatureNinja

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Re: Just picked up a cb360. Stuck engine help.
« Reply #11 on: Jul 12, 2018, 01:42:06 »
No, they are not any more delicate than other over head cam engines, but take a look at some of the build threads to see what happens when they dont get proper lubrication or cam chain tensioner failure (something these engines are very prone to)

As irk said: at the very least pull the top cover off and make sure things spin correctly.
'75 Honda CB360 - thread

Offline ryan_289

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Re: Just picked up a cb360. Stuck engine help.
« Reply #12 on: Jul 12, 2018, 11:46:48 »
Yea I will for sure take a look.  Ill probably end up rebuilding anyway.

Offline ryan_289

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Re: Just picked up a cb360. Stuck engine help.
« Reply #13 on: Jul 12, 2018, 11:52:33 »
Are there any recommendations on engine parts and gaskets?  Honda only or will aftermarket be ok?  I want to keep costs at a minimum but I do not want to skimp when it comes to internal engine components.

Offline advCo

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Re: Just picked up a cb360. Stuck engine help.
« Reply #14 on: Jul 12, 2018, 13:31:27 »
Honestly, I know people who have had stuck pistons, got em free and ran the motors for thousands of miles. I'm not saying its a good idea, and they've probably been lucky with just a little bit of rust on the rings, but its been done before. If it were me, I'd definitely want to check it out if you're planning to keep it.

For gaskets and stuff, I would always go with Honda OEM. You can get a complete gasket kit for the 360 for around $50.

Whatever you do, make sure the oil slinger inside the right hand cover is clean, as that is a primary cause for oil starvation to the head.

As for tensioner failure, check your engine number for a punch mark above and below the "-" in the engine number. These will indicate that factory recall work has been done including the tensioner fix.
« Last Edit: Jul 12, 2018, 13:33:08 by advCo »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline ryan_289

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Re: Just picked up a cb360. Stuck engine help.
« Reply #15 on: Jul 12, 2018, 14:59:10 »


For gaskets and stuff, I would always go with Honda OEM. You can get a complete gasket kit for the 360 for around $50.

Whatever you do, make sure the oil slinger inside the right hand cover is clean, as that is a primary cause for oil starvation to the head.

As for tensioner failure, check your engine number for a punch mark above and below the "-" in the engine number. These will indicate that factory recall work has been done including the tensioner fix.

My engine has no punch marks but the serial number is 2218613.  I think that is over the serial number range that was affected, its a 1976.

Where are you finding OEM gasket kits for $50?

Offline advCo

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Re: Just picked up a cb360. Stuck engine help.
« Reply #16 on: Jul 12, 2018, 15:02:46 »
My engine has no punch marks but the serial number is 2218613.  I think that is over the serial number range that was affected, its a 1976.

Where are you finding OEM gasket kits for $50?

Woops, its not OEM but I'm pretty sure I used aftermarket. I can't remember now. $35

https://www.ebay.com/itm/Engine-Gasket-Set-Kit-Honda-CB360-CB360T-CL360-1974-1976/192035680930?hash=item2cb637f2a2:g:DP8AAOSwL9pabK1Q:sc:USPSFirstClass!79356!US!-1

Common motor has them for $50:

http://www.common-motor.com/honda-cb360-overhaul-gaskets
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline trek97

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Re: Just picked up a cb360. Stuck engine help.
« Reply #17 on: Jul 12, 2018, 17:55:58 »
Yes 1976 was safe after the recall. 

I like Vesrah gasket kits.

Offline irk miller

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Re: Just picked up a cb360. Stuck engine help.
« Reply #18 on: Jul 12, 2018, 19:33:02 »
I like Vesrah gasket kits.

+1

They're mostly what's available, they're mostly cheap, and they're probably the exact kit everyone else sells just repackaged with their name.  LOL

Offline trek97

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Re: Just picked up a cb360. Stuck engine help.
« Reply #19 on: Jul 15, 2018, 08:10:37 »
+1

They're mostly what's available, they're mostly cheap, and they're probably the exact kit everyone else sells just repackaged with their name.  LOL

+1 +1   ;D