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Re-reading my first post I admit to being somewhat offensive. I intended to minimize the need for a chase set only from my personal perspective. Sorry it was so brash sounding.
The good news is that my 383 has now run 15,000 miles (scarry fast too) without a glitch. I have yet to take it down the track but once I get DR's, I am excited to run. My new boss has a 426 that runs 9.80's (always boasting) and thinks vettes are 'wimmin's work'.....so I'm REALLY looking forward to impressing him with a low 11? Can I even dream of a high 10??? (I drive my vette to work.....he trailors his ~store built~ $100,000 dodge to the track)
Last edited by Carpenter; Dec 15, 2007 at 10:00 PM.
You brought up a good point. Do NOT apologizes for making people THINK and discuss proper engine building techniques. Your idea / concept of making your own chase is good thought, we all need to think on our own.
Last edited by kalister1; Dec 15, 2007 at 10:48 PM.
Reason: Spelling
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Originally Posted by kalister1
You brought up a good point. Do NOT apologizes for making people THINK and discuss proper engine building techniques. Your idea / concept of making your own chase is good thought, we all need to think on our own.
I'm a Tool and Die maker for most of my life...Taps can come in diff thread grades(classes)...Most off the shelf stuff is standard but the quality might be lacking..Brittle cheap China crap...Could snap off in the hole just running it in...If a thread is damaged then ya got no choice..Go slow and start straight also back off to clear chips..Anyway a thread chaser is the only way to go just to clean out threads...JMHO
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Originally Posted by Happydad
I'm a Tool and Die maker for most of my life...Taps can come in diff thread grades(classes)...Most off the shelf stuff is standard but the quality might be lacking..Brittle cheap China crap...Could snap off in the hole just running it in...If a thread is damaged then ya got no choice..Go slow and start straight also back off to clear chips..Anyway a thread chaser is the only way to go just to clean out threads...JMHO
Threads also have "fits" too. I don't know the technical term.
For example, on one fit thread you can spin a nut all the way to the bottom of a bolt with one hit.
On the other hand, on a different fit thread, the nut will go down tighter, and you'll have to hold a nut with something to drive it down, even though they are all the same spec, like 3/8 NC.
I'm a Tool and Die maker for most of my life...Taps can come in diff thread grades(classes)...Most off the shelf stuff is standard but the quality might be lacking..Brittle cheap China crap...Could snap off in the hole just running it in...If a thread is damaged then ya got no choice..Go slow and start straight also back off to clear chips..Anyway a thread chaser is the only way to go just to clean out threads...JMHO
The way i understand it, you turn the tap in to create a chip then back it off to break the chip off.
The last time i looked a Machinist Handbook there were 3 classes of threads. I used to sit in Incoming Inspection and MIC the screws we did not have Go-NO-Go gages for. Those 3 little wires are a bear. I finally learned to use a Rubber Band to hold them.