Today I received my ITR valvesprings
but all the intake/exhaust & inner/outer springs are all mixed up..
and the colors on top aren't clear to tell
but I notice the difference in height, so I group them together for HTer to help me identify them...

Outer Springs:


Inner Springs


Thanks,

 

There should be little bits of paint on them. blue is exhaust, yellow is intake. tight coils towards the bottom. if in doubt, take them to a builder and he'll put them in a seat pressure tester for you.

 

Intake yelllow color on top

Type R Intake outer = 14761-P73-J02 Length 43mm
Type R Intake inner = 14751-P73-J02 Length 36.5mm

Exh blue color on top

Type R Exh outer = 14761-P72-003 Length 41mm = GSR Intake outer spring
Type R Exh inner = 14751-P72-003 Length 36mm = GSR Intake inner spring

Type R exh = GSR Intake

Tight coils = bottom.

Regards,

Nino

 

the weird thing comes..
what kind of spring will this be if I found PINK mark?

 

If these are used springs, color can shift to some extent.

Now, to be exact you would need spring pressure measured, start at 1.320" for install hight, being the first measure, go for 10.5mm for exh and 11.5 for intake and take your measurements. Compare to new reference values.

I will be doing reference measurment in the next few days so I can provide info as to what brand new springs are like, but for your specific ones you would need to measure yourself.

If you do not have access to spring pressure gauge to do this, there is one more option to at least ball park this.

To best of my knowledge paint markings on valve springs and usually Honda OEM indication (maybe Toda has it bit they are oval anyway), also tight coils on the bottom are OEM sign. This might not be absolute but it is a good indication.

You already know this with your VS, so next step assemble the springs and put on one retainer, stick them into press drill or clamp, compress to 1.320 from top of the retainer to the bottom plate of whatever you are using to compress this.

Once done, crank it until you get coil bind in case of exhaust VS this should be a hair more than 11.5mm, intake I did not measure yet so do not know right now what CB is on it.

This gives you some idea what you are dealing with, not 100%, but gives you some idea.

From the pictures your springs look about right to be type R, especially if they measure to values I already provided...

Regards,

Nino

 

Thanks for the info Nino,

I will borrow a caliper and measure the height...

 

could be ITR springs without colours ?