15 replies to this topic

[cristiano1968]

hello got to buy a dti guage  for future camshaft timing  

 i see a lot or in mm 

is it essential i get an imperial one 

as in inches?

[nicklouse]

nope.

[Ethel]

Not for cam timing, all you're interested in is a consistent reading. Imperial would be easier as most stuff is still specified in "thou", but you can always do the maths.

[cristiano1968]

ok  what do you  think about the cheap ones  or should i invest in a more expenzive one? 

[Spider]

As the other guys have said, either will do the job, but as they are an imperial engine, I prefer to go for them in thou. For setting Cams, a 0 - 1" or 0 - 25 mm one will do nicely.

 

ok  what do you  think about the cheap ones  or should i invest in a more expenzive one? 

 

Some of the less expensive ones can be OK. I'd suggest if buying a cheaper one, buy over the counter. Check the feel of it, it needs to be smooth, like a bearing or better, and have no radial play. The next thing you wand to check for is repeatability, ie, how well it measures the same 'thing' time and again. How to check for this at the counter might take some imagination but a decent seller would likely have a gauge block or the like you can check it against.

 

Also, have a look at pricing to compare against a less expensive one against the likes of a Mitutyo or Starett, both of these are very popular yet very good brands.

[DeadSquare]

If only looking to use it for cam lift, any cheep one will do as you are only looking for the instant that the cam ramp moves the cam follower, in fact, the magnetic base will probably cost more.

[cristiano1968]

Thanks for all the advice.
One question
Example if I use an imperial one
For example if I have to go to plus 0.200"
Is that right where I have indicated in the pic?

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[alex-95]

Thanks for all the advice.
One question
Example if I use an imperial one
For example if I have to go to plus 0.200"
Is that right where I have indicated in the pic?

That is 0.020", 0.2" would be 2 full revolutions.

[Spider]

 

Where I have the Green Arrow, that shows the measurement per increment, in this case, each division = 0.001".

 

The Blue Arrow shows the number of total turns of the Mainface Dial, or in the case of this instrument, 0.100" increments.

 

This is fairly Universal across most gauges.

[cristiano1968]

ok got it 

grazie mille

 thanks  so much 

[cristiano1968]

one last question 

what are the  small red numbers next to the black numbers?

[Spider]

one last question 

what are the  small red numbers next to the black numbers?

 

 

Not all Gauges have these.

 

They are for reading off in Reverse.

 

The Black Numbers are for reading when the Stylus is being compressed, however, it may need setting up in a Compressed state and the read off as it Decompresses, that's where the red numbers come in to play.

 

[cristiano1968]

Ok ?
Thanks

[Bumfarto]

Try to get one with a decent amount of travel. It’s nice to be able to see the entire range of valve lift from start to finish.

[AP2020]

Ok
Thanks

 

Also the front will turn to allow you to align the zero point.....  Some of the cheaper gauges are ok but more importantly get a decent stand as without a decent stand its just a fancy flag in the breeze..