Author Topic: Rocker box  (Read 2229 times)

Offline spyke

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Rocker box
« on: 14.08. 2010 21:28 »
Hi chaps,

Just sifting through my box of rocker boxes trying to decide which one to use , for my motor which is slowly slowly coming together, ony one of them is unpolished is this the correct original finish? What about the covers as well .
Cheers Spyke
A10 spitfire style

Offline dpaddock

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Re: Rocker box
« Reply #1 on: 16.08. 2010 02:54 »
All were polished.

David
David
'57 Spitfire


Offline Lightningpower

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Re: Rocker box
« Reply #2 on: 16.08. 2010 23:20 »
In my pile of parts I have two rocker boxes that were sandcast, not die-cast, and they are both unpolished.  I assumed they were earlier.
-Christian.
1953 Star Twin - Racing
1956 Road Rocket
1958 Super Rocket
1959 Spitfire Scrambler
1967 Hornet

Offline magicflem

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Re: Rocker box
« Reply #3 on: 17.08. 2010 09:03 »
OK, I have an A10 alloy head 67-1106 (dual port), and rocker box 67-1142. Will these fit will adequate valve clearance?
1930 BSA B30-3 Side Valve Girder (being restored)
1955 BSA A10 Road Rocket
1955 BSA A10 Golden Flash
1956 BSA A10 Road Rocket
1951 BSA A10 Golden Flash
1956 BSA DB32 Gold Star Clubman
1958 BSA A10 Super Rocket
1961 BSA C15 (being restored)
1961 BSA C15 Star "America" (being restored)
1961 BSA A10 "Big Valve" Super Rocket (being restored)
1963 BSA A10 Rocket Gold Star

Offline magicflem

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Re: Rocker box
« Reply #4 on: 17.08. 2010 09:05 »
Sorry, missed a pic!
1930 BSA B30-3 Side Valve Girder (being restored)
1955 BSA A10 Road Rocket
1955 BSA A10 Golden Flash
1956 BSA A10 Road Rocket
1951 BSA A10 Golden Flash
1956 BSA DB32 Gold Star Clubman
1958 BSA A10 Super Rocket
1961 BSA C15 (being restored)
1961 BSA C15 Star "America" (being restored)
1961 BSA A10 "Big Valve" Super Rocket (being restored)
1963 BSA A10 Rocket Gold Star

Online muskrat

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Re: Rocker box
« Reply #5 on: 17.08. 2010 11:00 »
Should fit, might need a wiggle to get over valve springs.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7

Offline RichardL

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Re: Rocker box
« Reply #6 on: 18.08. 2010 05:53 »
On the topic of polished or unpolished, the following photos of a gearbox cover I recently bought might be of interest. The polishing included power sanding, a whole lot of elbow grease with ever-finer grits of sandpaper, finally, followed by buffing with two different compounds.

I won't hijack the topic by describing why I needed the cover (I'll eventually get to that in a separate topic).

Apologies if I had to outbid one of my forum friends here to get this cover.

Richard L.

P.S. It might not be obvious, but the "after" picture is on top. *smile*

P.P.S. I am well aware that such renovations are not rare to some of our esteemed members, but it is somewhat rare for me.

P.P.P.S. If you looked closely at the shiny photo when I previously posted this, you know why I  removed and reposted it.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.