Author Topic: Any ideas why I have this screw in my inner timing case?  (Read 1329 times)

Online Greybeard

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My bike has a tiny cheese head screw, (hole must be a couple of mm) on top of the inner timing case directly above the advance & retard unit. I've never figured what it's doing there. Any ideas?
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beezermacc

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Can't think why anybody would do this, it's obviously a 'mod' for some unknown reason.
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Offline Peter in Aus

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My bike has a tiny cheese head screw, (hole must be a couple of mm) on top of the inner timing case directly above the advance & retard unit. I've never figured what it's doing there. Any ideas?
A pic would help ;)
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Online Greybeard

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My bike has a tiny cheese head screw, (hole must be a couple of mm) on top of the inner timing case directly above the advance & retard unit. I've never figured what it's doing there. Any ideas?
A pic would help ;)
I'm away from home at the moment. I'll post a pic of the screw later.
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Offline duTch

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I'm away from home at the moment. I'll post a pic of the screw later.

 Without the bike ? go home and take a pic- now......  *bash*

 Someone posted a similar thing a few days ago, like it was a hole for adding lubricant or checking chain tension or some other hair-brained idea....
 
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Online Greybeard

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The hole is tiny, plus, it's above the ATD.
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Online RichardL

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Another possiblity for screwing in the lifting eye for the crane.

Richard L.
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Online Greybeard

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Maybe someone drilled a pilot hole and decided not to proceed with whatever they were going to do so tapped a thread and put a something BA screw in there.
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Offline kiwipom

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hi guys, (Another possibility for screwing in the lifting eye for the crane) love your sense of humor, cheers
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Offline stev60

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The harebrained  idea was mine, its above the dynamo chain, just to squirt chain lube now and then, not to check tension.
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Online Greybeard

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Re: Any ideas why I have this screw in my inner timing case?
« Reply #10 on: 28.06. 2018 08:35 »
The harebrained  idea was mine, its above the dynamo chain, just to squirt chain lube now and then, not to check tension.
OK, a reason, but my little 'ole doesn't appear to have a purpose.
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Offline WozzA

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Re: Any ideas why I have this screw in my inner timing case?
« Reply #11 on: 28.06. 2018 10:16 »
The harebrained  idea was mine, its above the dynamo chain, just to squirt chain lube now and then, not to check tension.
OK, a reason, but my little 'ole doesn't appear to have a purpose.
*whistle*  Does it have hair around it?   *dribble*
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Online bsa-bill

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Re: Any ideas why I have this screw in my inner timing case?
« Reply #12 on: 28.06. 2018 10:25 »

Alloy worm - get a tin of stuff from Rentakill *smile*
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Offline Topdad

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Re: Any ideas why I have this screw in my inner timing case?
« Reply #13 on: 28.06. 2018 10:29 »

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« Reply #11 on: Today at 10:16 »
Quote
Quote from: Greybeard on Today at 08:35
Quote from: stev60 on Today at 02:20

OK, a reason, but my little 'ole doesn't appear to have a purpose.
*whistle*  Does it have hair around it?   *dribble*
 *yeah*
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Offline bikerbob

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Re: Any ideas why I have this screw in my inner timing case?
« Reply #14 on: 28.06. 2018 17:36 »
According to the lubrication chart it is recommended to lubricate the auto advance and retard unit every 2000 miles maybe a previous owner decided that instead of taking off the timing cover to lubricate  the unit he drilled a hole in the cover allowing easy lubrication without removing the timing cover. I have found that the unit gets enough lubrication without recourse to  removing the timing cover every 2000 miles.
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