Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: THUNDERDOWNUNDER on June 25, 2019, 09:53:33 AM

Title: 400/4 Oil Pump Oil Leak
Post by: THUNDERDOWNUNDER on June 25, 2019, 09:53:33 AM

Anyone think it could be O ring leak  as it looks like coming from bottom Big bolt and are they freely available from Honda ? Thanks folks !

Title: Re: 400/4 Oil Pump Oil Leak
Post by: mike the bike on June 25, 2019, 11:06:45 AM

Love the pic.
If you have access to compressed air,  connect the air to the breather pipe at the top of the engine.  This will make the oil piss out rapidly, making it obvious. Done it a few times.

Title: Re: 400/4 Oil Pump Oil Leak
Post by: THUNDERDOWNUNDER on June 25, 2019, 11:21:38 AM

Thanks will give that a go at the weekend . It’s not a major problem at the moment but have to keep the side cover off Or it gets everything covered in oil . It’s. 75 model and it’s been rebuilt by someone before I got it .

Title: Re: 400/4 Oil Pump Oil Leak
Post by: billywingnut on June 25, 2019, 08:58:59 PM

there are two O rings on the oil pump Spares are available from DS

Title: Re: 400/4 Oil Pump Oil Leak
Post by: Nurse Julie on June 25, 2019, 09:39:16 PM

I sell a complete overhaul kit for the CB400/4 oil pump on eBay. 8 O rings are needed.

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Title: Re: 400/4 Oil Pump Oil Leak
Post by: THUNDERDOWNUNDER on June 26, 2019, 07:51:37 AM

Do you post to Oz ?

Title: Re: 400/4 Oil Pump Oil Leak
Post by: Nurse Julie on June 26, 2019, 08:58:18 AM

Quote from: THUNDERDOWNUNDER on June 26, 2019, 07:51:37 AM

Do you post to Oz ?

Yes, I can send to Oz. I will PM you.