Author Topic: A small rattle in the engine department....  (Read 2141 times)

Online bsa-bill

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Re: A small rattle in the engine department....
« Reply #60 on: 19.09. 2015 17:40 »
You need Whitworth stuff which although easily available here in the UK might cost a bit to post to Kenya,
here is a conversion chart that might save you a bit if you have some spanners already

http://classicmechanic.blogspot.co.uk/2011/06/mm-af-bsw-bsf-spanner-conversion-chart.html
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online muskrat

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Re: A small rattle in the engine department....
« Reply #61 on: 19.09. 2015 20:38 »
http://www.sat.dundee.ac.uk/psc/spanner_jaw.html#Jaw_Size_Table
Common sizes on BSA 1/4, 5/16, 3/8, 7/16 BS
Cheers
Bill got in 1st.
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Offline trevinoz

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Re: A small rattle in the engine department....
« Reply #62 on: 20.09. 2015 01:18 »
The small journal crank has a different sized plug to that fitted to the large journal crank. The one with the tube, that is.
The Road Rocket L.J. crank uses the same plugs as the S.J.

Offline WozzA

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Re: A small rattle in the engine department....
« Reply #63 on: 20.09. 2015 08:20 »
& the small journal doesn't have a tube inside..

well mine didn't..  *wink2*
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Offline Guy Wilson

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Re: A small rattle in the engine department....
« Reply #64 on: 21.09. 2015 04:51 »
All in all I think I've been very lucky. The Crank cases appear undamaged. The crank looks repairable
I've not got the sludge traps out yet,

Online RichardL

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Re: A small rattle in the engine department....
« Reply #65 on: 21.09. 2015 05:00 »
I mean, don't take my word for it because there is much more expert advice than mine here on the forum, but I think that left rod may need to be replaced. ;)

Richard L.
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Online Greybeard

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Re: A small rattle in the engine department....
« Reply #66 on: 21.09. 2015 09:03 »
We need an empathy Unlike button like Facebook is getting.  *sad2*

Offline Guy Wilson

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Re: A small rattle in the engine department....
« Reply #67 on: 21.09. 2015 09:50 »
I don't know for certain yet, but I will once I've removed the conrods from my spare crank, I'll know whether they are interchangeable or not. I've seen small and large journal references on a couple of websites, so I  may be looking around for a spare conrod or two...all part of the learning curve and stuff I can pass on to others in the future no doubt...
Guy

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Re: A small rattle in the engine department....
« Reply #68 on: 21.09. 2015 10:21 »
Yes mate your very lucky not to have more damage.
looks like a small journal from here. Give us a pic of your spare.
Whichever one you use get it crack tested and measured for true. Any 2nd hand rods are going to have a few ??? marks. They have a limited life span. New ones would be best if budget will stretch.
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
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Muskys Plunger A7

Online RichardL

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Re: A small rattle in the engine department....
« Reply #69 on: 21.09. 2015 12:03 »
Guy,

I apologize for picking a bad time for attempted humor and making it just a little too dry. The left rod is the one that is fractured and crumbled. That said, the right rod, which is still on the crank, may have taken a thrashing from the flying debris inside the crankcase.

It looks to me that the crankshaft web might be distorted on the left side. That makes me concerned for how straight and true it is through the centerline of the journals.  When you say the crank is repairable, are you referring to the distortion I think I'm seeing in that crank web? I could be imagining it. Anybody else see something odd about that left web?

Richard L.
Plan on signing up for the world-wide 2017 DISTINGUISHED GENTLEMAN'S RIDE on September 30, 2018. Watch website at https://www.gentlemansride.com for details.

Offline Topdad

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Re: A small rattle in the engine department....
« Reply #70 on: 21.09. 2015 12:10 »
Now you mention it  is at an odd angle .If it is twisted it's taken an almighty clout to do that .
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Offline Guy Wilson

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Re: A small rattle in the engine department....
« Reply #71 on: 21.09. 2015 12:16 »
I'll stick it on the lathe at the crankshaft grinders and see if/how straight it is.

Online bsa-bill

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Re: A small rattle in the engine department....
« Reply #72 on: 21.09. 2015 12:35 »
Quote
Anybody else see something odd about that left web?

from the photo I'd say nigh on impossible to say either way, I think Guy your going the right way getting it tested/measured
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

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Re: A small rattle in the engine department....
« Reply #73 on: 21.09. 2015 13:45 »
OK now be honest. How many looked at the right side web then moved their head to the left to get a straight look at the left web?
I did  *bash*
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Online bsa-bill

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Re: A small rattle in the engine department....
« Reply #74 on: 21.09. 2015 14:11 »
up here on the topside of the globe we have to lean the other wat *smile*
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco