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Discussion Starter #1
Hello,

Has anyone successfully used a valve spring micrometer on a D series head? I am soon to do a mild head build and wanna install the valve springs at the correct installed height. Some brief research tells me that they don't fit B series heads as they're too tight.

Is it the same with D series as they're not particularly spacious around the springs either. I am mainly interested in D16a6/Pm3 heads as that's what i am building.

This is the tool in question


Regards,

Lee
 

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97 honda coupe
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7,611 Posts
Thats fucking awesome, i didnt even know those existed. I need one of those in my life.

As far as i know, nobody has one of those that would fit a honda head, why not just do it with a dial indicator?
 

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Brokedick Millionaire
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40,267 Posts
VSIH gauge, nothing new.

Google search took me back to 2004 posts on Honda-Tech...when there was tech!

"WDBU" is my quest.....What Does Blake Use?
 

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D-series Janitor
Front Engine Dragste
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Not sure if anyone builds a height gauge specific to the 4v stuff.

I was just looking for something this week and even guys on speedtalk are looking for one so I assume something in a considerably smaller diameter doesn't exist.

What I am planning on doing is turning a piece of 1" stock with a through hole in it to ~1.750", putting that in place of the spring, and then putting a dial indicator on the valve stem tip to measure the distance from valve on the seat to the retainer touching the spacer
 

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Discussion Starter #5
Is it safe to say no to it fitting then?

I'm not aware of the dial indicator way, i shall google it. Seemed like a handy tool for the price though, i class tools as investment so if something is gunna save me time, make my life easier or perform better i generally go for it if its practically priced.
 

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D-series Janitor
Front Engine Dragste
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I'd have an incredibly hard time believing the commonly available height gauges out there would fit on the valves that have the spark plug boss in-between them be it the early model intakes or later model exhausts.

The opposite side should be do-able
 

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Discussion Starter #7
I've emailed pro form request on the OD of the gauge. I may be the Guinea pig on this one though and get one anyway. It will be something useful for future builds.
 

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EG hatch x2
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I've emailed pro form request on the OD of the gauge. I may be the Guinea pig on this one though and get one anyway. It will be something useful for future builds.
I actually have the pro form tools. They are huge, they don't make one that fits 4 valve engines. I have one in my tool box I bought thinking it would work for mitz 4g engines and it's WAY to big. I would love to know who makes one. I am half tempted to try to make one on the lathe some day.
 

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Discussion Starter #10
Cheers gents, i'm likely to by one anyway as i have a 8v volvo that needs some head work sooner or later.
 
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