honda305 Home honda305 Auctions honda305 Gallery honda305 Forum


honda305.com Forum

Login
□ Search
□ FAQ 
□ 
Vintage Honda Owners,
Restorers, Riders and
Admirers

What a concept - A Girl Bringing Back Her 1966 Super Hawk

Want to keep a Restoration Log? Post it here! You can include photos. Suggested format: One Restoration per Thread; then keep adding your updates to the same thread...
User avatar
sarals
honda305.com Member
Posts: 1014
Joined: Mon Jun 25, 2012 9:19 pm
Location: Monterey Peninsula, California

Post by sarals » Wed Jul 11, 2012 10:53 pm

I had just the best conversation with LM this afternoon! Not only is he a veritable encyclopedia of knowledge on these old Honda twins, he's a funny, gregarious, NICE man! It was a real treat to talk with him.

He set me straight on many things about my bike, He explained how and why things must be checked and or replaced, and he walked me through some of the procedures used in checking said things and inspecting the engine. I learned the likely cause of the seizure (the left cylinder ignition timing was way off and the cylinder was running very hot). He spoke to me at length about the pistons, the rings, and the need to hone vs. bore the liners. We were able to identify the clutch; it's the late model "cush drive" version, a good thing. We determined that my mechanical advance is okay, and that the cam can stay in the head UNLESS the lobes are worn. He explained why I needed to remove the adjusters from the rocker arms, and how to restore them. I found out what is likely wrong with my starter clutch assembly (the screws loosened up and it fell apart!). I learned why I do need to split the cases, and what to look for when I do. He kindly offered his assistance and told me of his cache of parts. I've made a new friend in him, and I will certainly stay in touch with him.

Ed - thank you!!
Last edited by sarals on Thu Jul 12, 2012 8:24 am, edited 1 time in total.
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Thu Jul 12, 2012 1:19 am

You are welcome. ..........lm
sarals wrote:I had just the best conversation with LM this afternoon! Not only is he a veritable encyclopedia of knowledge on these old Honda twins, he's a funny, gregarious, NICE man! It was real treat to talk with him.

He set me straight on many things about my bike, He explained how and why things must be checked and or replaced, and he walked me through some of the procedures used in checking said things and inspecting the engine. I learned the likely cause of the seizure (the left cylinder ignition timing was way off and the cylinder was running very hot). He spoke to me at length about the pistons, the rings, and the need to hone vs. bore the liners. We were able to identify the clutch; it's the late model "cush drive" version, a good thing. We determined that my mechanical advance is okay, and that the cam can stay in the head UNLESS the lobes are worn. He explained why I needed to remove the adjusters from the rocker arms, and how to restore them. I found out what is likely wrong with my starter clutch assembly (the screws loosened up and it fell apart!). I learned why I do need to split the cases, and what to look for when I do. He kindly offered his assistance and told me of his cache of parts. I've made a new friend in him, and I will certainly stay in touch with him.

Ed - thank you!!

User avatar
sarals
honda305.com Member
Posts: 1014
Joined: Mon Jun 25, 2012 9:19 pm
Location: Monterey Peninsula, California

Post by sarals » Thu Jul 12, 2012 7:59 pm

My barrel is back. Ed told me what he thought it would need, and by golly, the machine shop agreed! They said the bores were in spec. They did a hone with a round ball hone, four strokes (as I asked). There is a little bit of scratching below the area where the rings make contact with the bore. The machinist said that that is NOT an issue. The bores are good. I asked them to degrease and bead blast the barrel, too. Here's the result. My first refurbished part!

Image
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Fri Jul 13, 2012 1:40 am

Looks to me that the right side sleeve is Up a bit. ...............lm
sarals wrote:My barrel is back. Ed told me what he thought it would need, and by golly, the machine shop agreed! They said the bores were in spec. They did a hone with a round ball hone, four strokes (as I asked). There is a little bit of scratching below the area where the rings make contact with the bore. The machinist said that that is NOT an issue. The bores are good. I asked them to degrease and bead blast the barrel, too. Here's the result. My first refurbished part!

Image

User avatar
G-Man
honda305.com Member
Posts: 5678
Joined: Wed Mar 25, 2009 5:17 pm
Location: Derby, UK
Contact:

Post by G-Man » Fri Jul 13, 2012 5:59 am

Hi

It looks like the right-hand liner is sitting proud of the barrel. Is this just an optical illusion?

[Oops, sorry - hadn't noticed LM's comment...]

If it is higher than the joint surface, it needs pressing down and / or skimming to get a flat surface for the gasket.

I'm sure that the guys know what they are doing but you need to make sure that there are no beads / dirt trapped in the oilways that run between the two front studs and the bottom joint face. Rebuilding a shiny new engine with beads in the oilways turns it back into an old worn out one very quickly....... :-(



G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

User avatar
sarals
honda305.com Member
Posts: 1014
Joined: Mon Jun 25, 2012 9:19 pm
Location: Monterey Peninsula, California

Post by sarals » Fri Jul 13, 2012 7:54 am

Morning, guys!

The sleeve is higher, yes. It's actually easy to move, and pressing it back down is not difficult. When I was inspecting it the other day I found I could push the sleeve up slightly in the casting - the same for the other sleeve - as much as you see in the photo. I know they're pressed in and can in fact be changed out if needed, but is as easy to move as mine are a bad thing?

I will check the passages again, thank you for that, G-man! VERY GOOD (and important) point!!!
Last edited by sarals on Fri Jul 13, 2012 9:26 am, edited 1 time in total.
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca

User avatar
sarals
honda305.com Member
Posts: 1014
Joined: Mon Jun 25, 2012 9:19 pm
Location: Monterey Peninsula, California

Post by sarals » Fri Jul 13, 2012 9:19 am

Yesterday three items arrived, as well as the barrel getting finished. I received a gas tank, fork seals, and the lower cam chain roller.

The gas tank replaces mine, which has a dent (as I've fretted over earlier) in the top. Mine is repairable, I'm sure. However, it was easier for me to find a straight tank to repaint, and I did. I'll sell mine, with the chrome panels.

I had a leaky fork seal, so I purchased a pair to install when I get to the forks.

I bought the cam chain roller even though I could have and should have waited. I have seventy two million other things to do before I get to the point when a new roller has to go in the crank case. There's that "p" word again, preceded by an "i". I'm having a bit of a problem prioritizing parts purchases. The bike is going to take a long time to redo. I'm going to have to accept that and slow down a little! I also need to sell my SV650S so I can afford to bring my Old Girl up to where I want it. Time to stop talking and get moving.

Question. My petcock will have to be rebuilt, definitely. However, besides needing a rebuild kit, the poor thing is totally plugged up and the copper tube is deteriorated, torn, and partially crushed (don't ask). I've been soaking it in carb cleaner, but the passages aren't clearing. How can I clear them and how do I get the tube out for replacement?
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca

Post Reply




 

CB-77 | CYP-77 | Road Test | Riding Log | Literature | Zen | Marketplace | VJ Survey | Links | Home