Honda-SOHC

SOHC.co.uk Forums => CB350/400 => Topic started by: waffey on June 02, 2018, 04:43:55 PM

Title: Metal Shavings
Post by: waffey on June 02, 2018, 04:43:55 PM

Hi

I took the sump off today so I could final remove the engine from the frame. I found these little buggers in the oil pick u filter. Does this mean a full engine rebuild?

Title: Re: Metal Shavings
Post by: hairygit on June 02, 2018, 04:51:04 PM

Looks like alloy, which is usually piston/s, or possibly the primary chain lashing about cutting into casings. :o

Title: Re: Metal Shavings
Post by: Nurse Julie on June 02, 2018, 05:18:20 PM

If it were me, I would definitely want to investigate further. But as you are taking the engine out of the frame anyway, you're half way there. Just don't ignore those bits, something alloy is not where Mr Honda intended it to be.

Title: Re: Metal Shavings
Post by: mike the bike on June 02, 2018, 08:14:43 PM

It could be the camchain shaving lumps off the camchain tunnel.   What does the engine sound like?

Title: Re: Metal Shavings
Post by: waffey on June 02, 2018, 09:51:28 PM

Quote from: mike the bike on June 02, 2018, 08:14:43 PM

It could be the camchain shaving lumps off the camchain tunnel.   What does the engine sound like?

I never had it running, it turned over fine and it tried to start.

Title: Re: Metal Shavings
Post by: Laverda Dave on June 03, 2018, 09:02:31 AM

I'm with Mike on this, sounds like a seized horseshoe and tensioner allowing the cam chain to go slack and shave its way through the casting. When you take the barrels off you'll see the damage to the rear of the cam chain tunnel.