Author Topic: Impact driver for clutch cover screws?  (Read 1055 times)

Offline JezzaPeach

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Impact driver for clutch cover screws?
« on: February 13, 2020, 09:28:57 AM »
Here we go, the old problem. Is it worth heating the screw head, WD40 etc, and would an impact driver have any effect?
Experiences gratefully received.
1972 CB500/4 K1 Gold
Wanted: my 500/4 UGP96M
from 1975-78. Garnet Brown.

Offline JamesH

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Re: Impact driver for clutch cover screws?
« Reply #1 on: February 13, 2020, 10:46:17 AM »
The Vessel Megadora ‘Impacta’ screw drivers are awesome. They combine an impact a function into a conventional form screwdriver. Well worth a look....

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F184056021244

Offline gtmdriver

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Re: Impact driver for clutch cover screws?
« Reply #2 on: February 13, 2020, 11:25:19 AM »
...and go steady. It's not impossible to crack the casings if you're heavy handed.

Offline mike the bike

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Re: Impact driver for clutch cover screws?
« Reply #3 on: February 13, 2020, 01:24:37 PM »
When you refit the cover, wipe a bit of copper grease on the threads and don't over tighten them.  There's always some gorilla of a mechanic showing off his strength that over tightens screws.  It isn't necessary.
Where's that 10mm socket got to?

Offline Spitfire

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Re: Impact driver for clutch cover screws?
« Reply #4 on: February 13, 2020, 03:47:38 PM »
A sharp rap with a hammer or an impact driver always works for me, I had a sturdy steel T bar made using the bit from the Honda toolkit which always worked.

Cheers

Dennis
1976 CB750F

1977 CB750F2 In bits

1964 BSA A65R In bits

Offline davefirestorm

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Re: Impact driver for clutch cover screws?
« Reply #5 on: February 13, 2020, 08:49:55 PM »
So,are the screwdriver bits in the oem toolkit JIS form?
Honda CB650Z
Honda F6C Valkyrie

Offline JezzaPeach

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Re: Impact driver for clutch cover screws?
« Reply #6 on: February 13, 2020, 09:02:42 PM »
Many thanks all.
1972 CB500/4 K1 Gold
Wanted: my 500/4 UGP96M
from 1975-78. Garnet Brown.

Offline JamesH

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Re: Impact driver for clutch cover screws?
« Reply #7 on: February 13, 2020, 09:44:42 PM »
So,are the screwdriver bits in the oem toolkit JIS form?
Yes

Offline davefirestorm

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Re: Impact driver for clutch cover screws?
« Reply #8 on: February 13, 2020, 10:06:46 PM »
So,are the screwdriver bits in the oem toolkit JIS form?
Yes
Thanks James glad I’ve kept a few screwdrivers 😁
Honda CB650Z
Honda F6C Valkyrie

Offline deltarider

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Re: Impact driver for clutch cover screws?
« Reply #9 on: February 14, 2020, 06:53:32 AM »
So,are the screwdriver bits in the oem toolkit JIS form?
Yes
Correct me if I'm wrong, but isn't the smaller crosshead one ordinary and the big one JIS?

Offline JezzaPeach

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Re: Impact driver for clutch cover screws?
« Reply #10 on: February 14, 2020, 01:35:21 PM »
I've found a Neilsen impact driver for 5/16in bits, which should be handy, used very carefully.
1972 CB500/4 K1 Gold
Wanted: my 500/4 UGP96M
from 1975-78. Garnet Brown.

Offline deltarider

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Re: Impact driver for clutch cover screws?
« Reply #11 on: February 15, 2020, 04:02:36 PM »
So,are the screwdriver bits in the oem toolkit JIS form?
Yes
Correct me if I'm wrong, but isn't the smaller crosshead one ordinary and the big one JIS?
Anyone?

Offline davefirestorm

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Re: Impact driver for clutch cover screws?
« Reply #12 on: February 15, 2020, 05:39:31 PM »
Not sure if these are Honda toolkit bits.Have nicer looking ones in Bike toolkits.
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Honda CB650Z
Honda F6C Valkyrie

Offline JezzaPeach

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Re: Impact driver for clutch cover screws?
« Reply #13 on: February 18, 2020, 02:24:22 PM »
Many thanks JamesH and others. GT85 spray and away for 3 days to let it soak in, found an unused Nielsen driver on eBay, bought long JIS bits, and hey presto! Wish I’d had one years ago. Great bit of kit for all kinds of things.
Many many many thanks.
PS after possibly 48 years unopened I’ll treat it to a gasket I think!
1972 CB500/4 K1 Gold
Wanted: my 500/4 UGP96M
from 1975-78. Garnet Brown.

 

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