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help with restoration

pieeater
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Joined: Wed Sep 24, 2014 3:10 pm
Location: wigan england

Post by pieeater » Thu Oct 02, 2014 6:37 pm

Thanks for the info.
I wonder why Honda didn't fit the gear with a spline it seems a bit of a strange idea to me.
I just thought it might be some kind of safety device designed to slip if the filter became blocked. And if the nut is tight it shouldn't t need a tab washer. When I took the nut off it was tabbed over but wasn't tight.
I will dog it up.
if its not broke don't fix it.

Aermacchi ss350
Gilera 124
James SC1 Scooter
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malcolmgb
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Post by malcolmgb » Fri Oct 03, 2014 1:59 pm

It's just a centrifugal filter, heavy debris is thrown outwards and the oil just passes through under low pressure, there is no way of the engine sensing if the filter is blocked.
1977 CB400F
1973 CL175
1976 XL175 - Sold
1964 CL72
1966 CA78

pieeater
honda305.com Member
Posts: 55
Joined: Wed Sep 24, 2014 3:10 pm
Location: wigan england

Post by pieeater » Sat Oct 04, 2014 5:33 am

That's my point.
The filter is there is collect (heavy debris) and its spinning. If somehow it becomes so blocked it cant spin or jambs something has to give. If the sprocket is tightened up and cant slip its going to break the chain or strip the sprocket, that's my thinking anyway.
In my experience the designers of engines are very clever and don't design something like this for nothing. It would have been easier to have a spline on the inside of the drive sprocket and a hexagon nut. Why go to the trouble of making a special nut with a tab washer and a special cone washer. It makes no sense. But then again I could be wrong.
if its not broke don't fix it.

Aermacchi ss350
Gilera 124
James SC1 Scooter
Honda CA77

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G-Man
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Post by G-Man » Sat Oct 04, 2014 5:54 am

It doesn't matter how clogged the filter gets, there's nothing to stop it spinning. It will just stop oil getting to the engine as it blocks up. It's just a rotating cylinder.

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

pieeater
honda305.com Member
Posts: 55
Joined: Wed Sep 24, 2014 3:10 pm
Location: wigan england

parts

Post by pieeater » Wed Oct 08, 2014 12:25 pm

hello G-man
have been trying to email you but it keeps bouncing back.
Did you say you have a barrel with pistons. I need either a std piston and two sets of rings or the barrel. Please email the photos.
Regards Derek
if its not broke don't fix it.

Aermacchi ss350
Gilera 124
James SC1 Scooter
Honda CA77

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G-Man
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Post by G-Man » Wed Oct 08, 2014 12:52 pm

Derek

Send me a PM with your email address and we'll try that.

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

pieeater
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Posts: 55
Joined: Wed Sep 24, 2014 3:10 pm
Location: wigan england

starter chain

Post by pieeater » Tue Nov 11, 2014 4:02 pm

I have rebuilt the engine and refitted it. fitted new battery etc.
It started first touch and runs fine.
My problem is when the starter is cranking there is an intermittent metallic bang ( a really scary one) The first time I herd it I thought it had dropped a valve its that bad, but the engine runs fine. It only dose it when the engine is cranking. Although the chain dosnt appear to be worn at all its very slack and I think its either slapping something or its trying to jump off the engine sprocket. but there is no adjustment for the chain. Do I shim the starter back?
Derek
if its not broke don't fix it.

Aermacchi ss350
Gilera 124
James SC1 Scooter
Honda CA77

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