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500 alternator stator screws - five out of six are solid.
Oddjob:
Always better to tackle the problem now Ted rather than wait until it really becomes a problem. It would also be easy to damage the windings accidentally if you'd left it in to polish, the weight would have made polishing it harder IMO. When inserting the drive bit twist the tool to preload the bit so when you hit it the drive will move immediately.
You can buy JIS bits to fit that impact driver.
Matt_Harrington:
Ah ha! Ted, for some reason, I thought the bigger of the impact tools may not have fitted hence the idea of using a smaller 'mini' one. I've had to use mine in quite a few places on the old 400/4 engine. A cheap tool with good effects! Glad it's all worked out...
McCabe-Thiele (Ted):
--- Quote from: Oddjob on July 10, 2023, 03:03:14 PM ---Always better to tackle the problem now Ted rather than wait until it really becomes a problem. It would also be easy to damage the windings accidentally if you'd left it in to polish, the weight would have made polishing it harder IMO. When inserting the drive bit twist the tool to preload the bit so when you hit it the drive will move immediately.
You can buy JIS bits to fit that impact driver.
--- End quote ---
I have a JIS bit but it also says PH3 after the JIS markings - Grahame thinks it's not pucka JIS size- matters not as they are all out.
I have dismantled the Impact Driver - filled the slots with grease - all back together with a nice new SS circlip - it was when I twisted to preload that it seemed to fall apart on me - the external circlip seems to fit better than the original snap ring type if that is the right word.
I did wonder if - could fit a normal SS bolt & washer for the inner three JIS screws?
McCabe-Thiele (Ted):
--- Quote from: Trigger on July 10, 2023, 02:32:39 PM ---PH3 is Phillip's, not JIS ;)
--- End quote ---
This is how many seem to be listed:-
4PCS JIS ( JAPANESE INDUSTRY STANDARD ) MAGNETIC SCREWDRIVER SET
SPECIFICATIONS :
SIZES : PH1 - PH2 - PH2 - PH3
..
https://bike.bikegremlin.com/10583/phillips-vs-jis-vs-pozidriv/
.
The above link says it all - a long detailed - often confusing article I was drawn to Para 4 reproduced below.
Quote
4. How can I find a good Phillips/JIS screwdriver?
After a brief Pozidriv/Supadriv digression, how does one find a good screwdriver for Phillips and/or JIS screws? In Chapter 3.2. I explained how JIS was discontinued as a standard in 2008, so now there is only ISO 8764. In other words: almost no manufacturers today make and sell screwdrivers noted as “JISâ€, only “Phillips, ISO 8764-1, 2â€. Some might (also) mention “DIN 5260-PHâ€, but no “JISâ€.
Then how can you tell if a Phillips is one that works well with JIS screws and doesn’t easily slip out of Phillips screws?
It still boils down to trial and error. I intend to run this article with local tool companies and suppliers to see if they have a more universal solution. Until then, I can only recommend what I have personally tested and a few other ones recommended by many mechanics (but I haven’t tested personally):
Trigger:
Don't believe everything you read. Vessel still make JIS screwdrivers ;)
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