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The BSA A7 & A10 Forum > Technical > A7 & A10 Engine > Pull down
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Author Topic: Pull down  (Read 264 times)
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WozzA
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« on: 17.01. 2012 09:52 »
I started the pull down of my motor today...   smile
just as I thought...   20+ year old NEW +.020" pistons
looking good inside...



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Melbourne Oztralia
57 A10GF
02 Heritage
A10Boy
Forum Oracle
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Solihull, Near Birmingham England.
« Reply #1 on: 17.01. 2012 15:07 »
It looks like it hasn't been run since re-build. What's the story?
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Regards

Andy

1960 A10 - Black Golden Flash
1973 Z1a - Fast
1960 AJS Model 31 CSR - Beauty
WozzA
A's best friend
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Karma: 3
Posts: 128
« Reply #2 on: 17.01. 2012 20:31 »
 smile The previous owner had intentions to rebuild her but didnt know about this site for help...
it sat in his shed for 20+ years & in that time he did nothing to it..
he was told that it had been rebuilt when he purchased it, but wasn't sure?  huh2
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Melbourne Oztralia
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muskrat
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Lake Conjola NSW Oz
« Reply #3 on: 18.01. 2012 08:03 »
Looks good WozzA. What does the bottom end feel like?
I would be in two minds as to keep going or throw it back together and have a go.
Cheers
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Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65.
WozzA
A's best friend
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Karma: 3
Posts: 128
« Reply #4 on: 18.01. 2012 09:49 »
The bottom end feels good... there is only sideways movement with the big ends,   eek
I think here must have been moisture get in around the cam followers, there is a rusty colour moisture on them & the cam..
the cam lobes & face of the followers show no sign of wear at all..
I dont know if I would trust just cleaning it up... my luck the first time it ran the Ar$e will drop out of it..    problem  then I'd be kicking myself for not checking everything..
I went into MODAK today & picked up a few parts on back order  smile
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Melbourne Oztralia
57 A10GF
02 Heritage
muskrat
Forum Oracle
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Karma: 25
Posts: 1885


Lake Conjola NSW Oz
« Reply #5 on: 18.01. 2012 10:02 »
 Yep your probably right. The A65 is the first bike I've not rebuilt before riding. Hasn't gone pop yet.
Cheers
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Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65.
manosound
Outside Chicago, IL
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« Reply #6 on: 18.01. 2012 14:48 »
I think it can get really gooey in the sludge trap. Failure to clean out my sludge trap during my first engine rebuild allowed me to have the experience of two engine rebuilds.

Richard L.
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