Jump to content
BANGKOK
Isaanbiker

Wrong numbers on feeler gauge caused a big headache..

Recommended Posts

Posted (edited)

  last Friday, i went to my shop where i usually buy my parts and purchased a feeler gauge for 150 baht. I was planning to adjust my valves, just my usual service interval.

 

    Then I've adjusted them five times, but the rear cylinder was so loud and the valves were louder than the exhaust system. I spent my Saturday and Sunday with it, without being successful.

 

    Then I had enough and borrowed the feelers from a friend. I've adjusted all valves once and the engine runs like a Swiss Clockwork, as it should.

 

    They must have printed the wrong numbers on the feeler gauge and i always adjusted the valves the wrong size.

 

    I thought it's worth posting, should anybody have similar issues. 

 

  

 

  

Remember the ghost.jpg

Edited by Isaanbiker
Adding our first MC Colours....
  • Like 1

Share this post


Link to post
Share on other sites
Posted (edited)
4 minutes ago, Crossy said:

You didn't get metric feelers and adjust to the imperial clearances (or vice-versa) by any chance?

Nope, I had the metric and imperial sizes printed on them. 0.08 mm are around twice as thick. 

 

  Must have happened at the production line. 

Edited by Isaanbiker

Share this post


Link to post
Share on other sites

I am sure you read before somewhere that quality tools make life a lot easier... 

  • Like 2

Share this post


Link to post
Share on other sites

Its easy to get confused  with Feeler  Guages    ,, with imperial and metric marks on ,,shims etc       remember measure twice   change once recheck again ,, i do it professionally and still  get confused when  tired or rushed ,,

  • Thanks 1

Share this post


Link to post
Share on other sites

Only one name in measurement tools - Starrett

I still have mics and gauges of my Fathers - pre WW2 vintage

  • Like 2

Share this post


Link to post
Share on other sites

Buy some cheap digital calipers. Useful for measuring many things.

397a9ff5-6d47-4799-ac06-7b1e916e914e.jpe

  • Like 2

Share this post


Link to post
Share on other sites
On 8/22/2019 at 12:59 PM, Isaanbiker said:

  They must have printed the wrong numbers on the feeler gauge and i always adjusted the valves the wrong size.

Send them to me - i'll measure them. I just doubt it, sorry.

11 hours ago, liddelljohn said:

Its easy to get confused  with Feeler  Guages    ,, with imperial and metric marks on ,,shims etc       remember measure twice   change once recheck again ,, i do it professionally and still  get confused when  tired or rushed ,,

Sorry, i just cant see it.

One mil (1.00mm) is as good as damn it 40thou (0.040") of an inch.

So 0.10 of a mil is 0.004".

Lets take a look at common valve clearances of say 0.004" IN and 0.008" EX, just as an example.

How can someone with mechanical experience mess up those numbers with the metric equivelants of 0.01 and 0.02mm?

Ya know, just by looking at them, let alone feel (excuse the pun) them, you'd know you are way out mixing the two up.

7 hours ago, canthai55 said:

Only one name in measurement tools - Starrett

I still have mics and gauges of my Fathers - pre WW2 vintage

We'll agree to disagree.

You may be correct American side of the Pond pre WW II.

But....

You do realize that nowadays, Starrett has grade A and grade B - B being made in China, but assembled and packaged in the good 'ole USA.

Ditto Browne & Sharp. And Moore & Wright.

The only guaranteed high quality, great price measuring tools made in the last 30-50 years are Mitutoyo, a Japanese brand with factories in Brazil, and, wait for it, USA.

Of course you want silly money stuff go Starrett grade A (no better than Mit) or high end, eye watering Swiss stuff.

 

Regards,

bloke who has a 0-1" mic tattooed on my calf.

Just in case....

 

IB/OP - PM sent.

  • Like 2

Share this post


Link to post
Share on other sites

Back in the day I think the tool used was a cigarette packet.

regards Worgeordie

  • Like 2

Share this post


Link to post
Share on other sites
2 hours ago, thaiguzzi said:

Send them to me - i'll measure them. I just doubt it, sorry.

Sorry, i just cant see it.

One mil (1.00mm) is as good as damn it 40thou (0.040") of an inch.

So 0.10 of a mil is 0.004".

Lets take a look at common valve clearances of say 0.004" IN and 0.008" EX, just as an example.

How can someone with mechanical experience mess up those numbers with the metric equivelants of 0.01 and 0.02mm?

Ya know, just by looking at them, let alone feel (excuse the pun) them, you'd know you are way out mixing the two up.

We'll agree to disagree.

You may be correct American side of the Pond pre WW II.

But....

You do realize that nowadays, Starrett has grade A and grade B - B being made in China, but assembled and packaged in the good 'ole USA.

Ditto Browne & Sharp. And Moore & Wright.

The only guaranteed high quality, great price measuring tools made in the last 30-50 years are Mitutoyo, a Japanese brand with factories in Brazil, and, wait for it, USA.

Of course you want silly money stuff go Starrett grade A (no better than Mit) or high end, eye watering Swiss stuff.

 

Regards,

bloke who has a 0-1" mic tattooed on my calf.

Just in case....

 

IB/OP - PM sent.

I swear to god, even being atheist, that the feelers are junk. 

 

   I've used the same clearance with my friend's gauge, so there's no possible misunderstanding.

 

  And it's not the first time that I've done it. Message sent. Cheers- M. 

 

   

  • Like 2

Share this post


Link to post
Share on other sites
2 hours ago, worgeordie said:

Back in the day I think the tool used was a cigarette packet.

regards Worgeordie

I guess you mean the spark plug gap which is a bit different. 0.4 mm, right?

  • Like 2

Share this post


Link to post
Share on other sites
9 hours ago, VocalNeal said:

Buy some cheap digital calipers. Useful for measuring many things.

397a9ff5-6d47-4799-ac06-7b1e916e914e.jpe

I'll do. The guy I've got the feelers from has one that works well. Will check the gauges and see what size they really are. 

 

  But instead of writing the real size on them, I've already ordered one that's of good quality. But thanks!

Share this post


Link to post
Share on other sites

You can also set your valves while the engine is running and do it by sound but it is a bit messy.

  • Confused 1

Share this post


Link to post
Share on other sites
You can also set your valves while the engine is running and do it by sound but it is a bit messy.
Ha ha I'd like to see a video of that...especially if its a shim system.
  • Haha 2

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...