Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: CB5501977K3 on November 19, 2019, 08:07:36 PM

Title: Head Gasket Advice
Post by: CB5501977K3 on November 19, 2019, 08:07:36 PM: Hi
My 550's head gasket was sweating and I was getting an oily deposit around the joint.
I am in the middle of lapping in my exhaust valves and will soon be reassembling my 550 engine. I have ordered a genuine Honda head gasket but was wondering if copper spray improves the sealing and gives the head gasket a longer life?

Has anyone tried these products and if so what do you think.

Chris
Title: Re: Head Gasket Advice
Post by: Nurse Julie on November 19, 2019, 08:29:41 PM: If its a genuine Honda head gasket, it will be sticky on both sides and have a sticky, squidgy centre and nothing else should be applied, it will stick well enough anyway.
Title: Re: Head Gasket Advice
Post by: CB5501977K3 on November 19, 2019, 08:40:34 PM: Thanks for the prompt response, it's not arrived yet but didn't know it was sticky.
I am new to the forum and this is my first query - think I will find it very useful.

Thanks
Chris
Title: Re: Head Gasket Advice
Post by: Nurse Julie on November 19, 2019, 08:46:47 PM: Quote from: CB5501977K3 on November 19, 2019, 08:40:34 PM
Thanks for the prompt response, it's not arrived yet but didn't know it was sticky.
I am new to the forum and this is my first query - think I will find it very useful.

Thanks
Chris
No problem Chris. Welcome to the forum.
Title: Re: Head Gasket Advice
Post by: Bryanj on November 19, 2019, 09:06:29 PM: Hope you ordered the O rings as well! And dont forget to read the manual several times until you understand properly how to refit the cam cover or you will bend valves
Title: Re: Head Gasket Advice
Post by: CB5501977K3 on November 20, 2019, 04:51:03 AM: Noted re the O rings comment, are the pattern ones not too good?
I ordered a pattern top end rebuild kit but a genuine Honda head gasket as forum members report issues with non genuine head gaskets.
Title: Re: Head Gasket Advice
Post by: Bryanj on November 20, 2019, 09:50:07 AM: You didnt say you had ordered a set, just the head gasket. Used to have difficulty convincing people you cant change just the gasket!
Title: Re: Head Gasket Advice
Post by: paulbaker1954 on November 21, 2019, 08:48:47 AM: Quote from: CB5501977K3 on November 19, 2019, 08:07:36 PM
Hi
My 550's head gasket was sweating and I was getting an oily deposit around the joint.
I am in the middle of lapping in my exhaust valves and will soon be reassembling my 550 engine. I have ordered a genuine Honda head gasket but was wondering if copper spray improves the sealing and gives the head gasket a longer life?

Has anyone tried these products and if so what do you think.

Chris

For the record I just spent ages fixing a similar oil bleed. I would advise a head skim whilst you are doing all this work as well. Only cost me £30 at my local machine shop and finally fixed oil seepage that a number of head gasket and o ring changes failed to fix. I had oils seeping from around the timing chain area by the way so I knew it was not down to head gasket o ring mismatch
Title: Re: Head Gasket Advice
Post by: Trigger on November 21, 2019, 11:47:51 AM: If the gasket leaks from the chain area, it is always the head has bowed from over heating and a skim is required ;)