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Author Topic: is this going to be an issue? cb500 motor  (Read 410 times)

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Offline Shtonecb500

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is this going to be an issue? cb500 motor
« on: July 16, 2022, 12:34:50 PM »
this was siliconed on, you think this will be a problem?

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Offline bryanj

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Re: is this going to be an issue? cb500 motor
« Reply #1 on: July 16, 2022, 02:48:50 PM »
There should be an O ring on the stud before the washer to stop any oil
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline grcamna2

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Re: is this going to be an issue? cb500 motor
« Reply #2 on: July 16, 2022, 05:48:15 PM »
I could be wrong but it looks like a bottom section of that casting where the bolt goes in has been broken-off,then glued on?
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Offline bryanj

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Re: is this going to be an issue? cb500 motor
« Reply #3 on: July 16, 2022, 06:09:21 PM »
Dont think its broken just corroded a chewed up
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline RAFster122s

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Re: is this going to be an issue? cb500 motor
« Reply #4 on: July 16, 2022, 07:05:13 PM »
The area could be TIG welded and refaced but I think their silicone solution will work if it keeps it from leaking while allowing it to seal. Crude but effective. Would need the head off ideally to do that repair out of the motor…
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Offline Dunk

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Re: is this going to be an issue? cb500 motor
« Reply #5 on: July 20, 2022, 05:13:14 AM »
If that washer does the sealing on a 500, it will leak there. I would clean it well then use epoxy like JBweld then file/sand it smooth.
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Offline bryanj

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Re: is this going to be an issue? cb500 motor
« Reply #6 on: July 20, 2022, 05:46:06 AM »
The washer dont seal, the O ring does and will probably deform into the erroded areas ans seal fine
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Shtonecb500

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Re: is this going to be an issue? cb500 motor
« Reply #7 on: July 20, 2022, 06:35:13 AM »
we decided to just rebuild the original head and use parts out of this damaged one.
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73/74'' CB500/550 resto-mod - sold
75' 750f 91' cbr f2 swap cafe - mock up
74' 750 chopper hardtail - complete - sold
74' CB750/836kit - Black mix & match - daily rider - always tweaking
71' cb500 K0 survivor - complete
71' K1 - CANDY GOLD/BROWN Winton kit - in process
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