Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: Deano400 on March 07, 2018, 04:59:49 PM

Title: CB400 Oil Way Plug
Post by: Deano400 on March 07, 2018, 04:59:49 PM

Can anyone advise on the best way to remove this plug, see pic. I am assuming it's removable as the parts manual shows it has an O ring. It feels tight and I don't want to use any unnecessary force. Does it just pull out with a bit of effort? Would like to replace the O ring when I rebuild. Cheers.

Title: Re: CB400 Oil Way Plug
Post by: Orcade-Ian on March 07, 2018, 06:11:08 PM

Yes, just pulls out and has an o ring on.
I remove them with a small 3 jaw chuck gripped around the pin and apply a little heat if needed.

Ian

Definitely replace the o ring, especially if any extra heat was needed to extract it

Title: Re: CB400 Oil Way Plug
Post by: Deano400 on March 07, 2018, 08:28:25 PM

Thanks Ian great help. Like the 3 jaw chuck idea. Think I'll leave the hammer action off!!  :)

Title: Re: CB400 Oil Way Plug
Post by: Trigger on March 08, 2018, 12:04:13 AM

Remove the bung on the over side of the engine and then take a long bar and knock it out  ;)

Title: Re: CB400 Oil Way Plug
Post by: ttr400 on March 08, 2018, 04:57:55 AM

What Trigger said.

Kevin

Title: Re: CB400 Oil Way Plug
Post by: tom400f on March 08, 2018, 09:58:39 PM

*cough* if you run the starter it might come flying out under oil pressure  ::)

Title: Re: CB400 Oil Way Plug
Post by: Deano400 on March 09, 2018, 05:52:10 PM

Gave it a slight tap and it flew out!!  :) :)

Title: Re: CB400 Oil Way Plug
Post by: Bryanj on March 09, 2018, 07:49:52 PM

Exactly what it does if you start the engine with out the generator cover on, closely followed by looooods of oil

Title: Re: CB400 Oil Way Plug
Post by: paul G on March 10, 2018, 12:19:24 PM

Quote from: Bryanj on March 09, 2018, 07:49:52 PM

Exactly what it does if you start the engine with out the generator cover on, closely followed by looooods of oil

I learned that lesson ;D ;D

Title: Re: CB400 Oil Way Plug
Post by: Greg65 on March 10, 2018, 09:18:07 PM

Bit of background to this please. Is this just good sense to replace a 40 year old seal or are there other benefits such as cleaning the oil passage?

Thanks
Greg

Title: Re: CB400 Oil Way Plug
Post by: hairygit on March 10, 2018, 09:48:40 PM

How far down are you stripping the motor? Right down to bare cases? If so, yes, flush it through and dry with compressed air. If not splitting the casing, just replace the O ring, don't risk dislodging dwarf or sludge, last thing you need is for it to be loose in the oil when you run it.

Sent from my X6pro using Tapatalk

Title: Re: CB400 Oil Way Plug
Post by: Greg65 on March 11, 2018, 07:43:40 AM

As the case is split I will open them up and check for dwarfs, don’t want any singing going on in my engine ;D.

Thanks Hairy, I just love auto correct.

Title: Re: CB400 Oil Way Plug
Post by: andut on March 11, 2018, 08:15:14 AM

Best to check for midgets in the rocker cover whilst you're at it ........

Title: Re: CB400 Oil Way Plug
Post by: Rozabikes Tim on March 11, 2018, 08:30:11 AM

Does it have one of those "Hiho" chains in there? I was a bit Dozey once and overlooked that one!

Title: Re: CB400 Oil Way Plug
Post by: K2-K6 on March 11, 2018, 01:47:27 PM

 :) :) :)

Hiho,  wasn't that used by Jeff beck combined with silver lining? As well as the obvious dwarf usage.  :)

Title: Re: CB400 Oil Way Plug
Post by: mike the bike on March 11, 2018, 05:02:25 PM

Do you mind, it hurts when I laugh.