How in the hell do you use this tool came with no instructions. Besides twisting till the retainer stops how do you use it? Mine stops at 9 ?

 

I don't use those things, they take to long. I use snap guages.

That number is there to let you know where to spin it back to after you take it back off the head, then you measure the height.

Spin all the way closed, install retainer and keepers, spin out till snug - record number/letter, spin closed again and remove keepers and retainers, remove and return back to the number it was at when installed - then measure that height.

 

So I need another measuring tool, to measure my height mic? What the hell? where do I get that tool at?
And Why doesn't proform ever throw instuctons along with the tools they sell?



Thanks dude I owe you!

 

Ya got one like this?
These are good(depending on which one ya buy) from 1.600 to 2.100.
Put it under the installed retainer,screw it out until it touches,then read height.Shazzzzzaaaammm.Make sure ya turn the reading line towards ya so ya can read it.
Measure it with a rule when closed (shortest) and it is probably 1" tall. 1" added to the .0XXX reading is the installed height.

 

Yeah - But he said there is a letter showing, that is one of the cheapo versions that doesn't have any height markings on it. You have to remove and measure it after seeing what letter shows through the window.

 

Heee Heee

Big trouble Tonto.

He said he had a ProForm and they are like the Tavia and the one from Powerhouse. Just like the one in the picture.

 

Naw - You're right, didn't see the part about the proform brand, like I said I don't use those things, not as fast as a snap guage and veniers. Figured he had one of the cheap aluminum ones with the window on it that all the guys call the shop about "do you have a chart that tells me what this letter means in height?"

 

I have never seen one like you describe,but I haven't look very hard, as the one I have does a good job.

 

THis is why I'm thrown off on reading this thing... mine says 1.6-2.1

But hte numbers on the screw oout piece go as followed:

"6,7,8,9,0,1,2" do these represent the .6, .7, .8, .9, 2.0, 2.1, 2.2?

cause it the base piece measures 1inch, why does it have numbers 0-90 on there? If when I unscrew mine and it locks at 9 on the spin out piece, and the base says 60 on it... how am I suppoesed to interpret that? I need a 1.8 install height on my beehives.

This is kind of confuzing.

 

Think
It's one inch tall closed and on "0". If ya turn it open to the .500 line then it is 1-1/2" tall measure it with a rule. There are lines all the way around it at each .100. If ya go to the .500 line and go to the 50 on the gage it is it is 1.550. If ya go to the .500 line and then to 60 it is 1.560. The vertical line is "0" the horizontal lines are .100 and the numbers are .010 to .090. That's pretty much it. Ya read it like a mic.

 

THanks,

I got everything measured up now. With the aid of my Dial Caliper. I'm at 1.86 I need a .06 shim. and Im good.

 

Better check them all.

 

Agree on this because last time I did this I measured everything. Every spring length & every retainer height, and every spring pressure on a honeywell load cell with digital readout and they all were different. Not only that, but the springs were at different pressures once compressed to the same height due to the lengths being different. I found that the spring rates were accurate and consistent and I calculated my possible error from there. So given the tolerances I saw, if I had just measured one retainer height and set them all up based on that, they could potentially be off +-10# or so (say shortest spring on the tallest retainer height to tallest spring on shortest retainer height - maybe 20# difference in closed spring pressure). Now what I dont know is just how much real world difference that makes, but since I was blueprinting, I matched them all up best I could and shimed them from there using the 8 tallest springs on the exhaust because those also had the higher retainer heights than the intakes had. Maybe it was a big waste of time, but I fugure it's part of fine tuning, and my time is free more or less. And it sure runs good. Would be a fun dyno experiment to do it both ways and see if it makes much of a difference.

 

Kevin,
Heads have come in that the height and pressure were all over the place and they still run good.
To me it's the personal knowledge that they are as close as possible with what the given set up will offer.
Most shops don't go to that much detail to spring them up but I do cause ya might just catch something that will lead to a failure.

 

Yeah, I figured it's something shops can't afford to for time and cost, but that racers might do to get an edge.