Question on Drilling and Tapping Threads
#1
Supreme Member
Thread Starter
Join Date: Feb 2004
Location: Greenville, SC
Posts: 1,231
Likes: 0
Received 1 Like
on
1 Post
Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Question on Drilling and Tapping Threads
My AC bracket stud snapped the other day so I am in the process of drilling out what's left of the old stud (stuck in the cylinder head). I know the thread size (or whatever you call it), it's 3/8-16, and I have a drill and a tap and die set. My question is what size drill bit should I use for this? And, does anyone know how far I can/should drill into the cylinder head before I ruin it? Thank you in advance for the help.
#2
TGO Supporter
http://www.engineersedge.com/tap_drill_chart.htm
your tap set should have that but since it seems it doesn't print it out and save it
your tap set should have that but since it seems it doesn't print it out and save it
#5
TGO Supporter
Originally posted by 84firebird383
have you tried an extractor yet? why retap it if you dont have to?
have you tried an extractor yet? why retap it if you dont have to?
#6
Senior Member
Join Date: May 2004
Location: Oshkosh wi
Posts: 608
Likes: 0
Received 1 Like
on
1 Post
Car: 77 Firebird
Engine: 454
Transmission: th350
Axle/Gears: 4.10
have you tried an extractor? if you have you'd know why he's not trying it.
#7
Supreme Member
Thread Starter
Join Date: Feb 2004
Location: Greenville, SC
Posts: 1,231
Likes: 0
Received 1 Like
on
1 Post
Car: 1991 Chevy Camaro
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.42
Actually I did use an extractor. Since my cordless drill decided to act up on me I went to Sears to get a new one (with a cord!) and I figured I would try some. It worked fine for me but the stud wasn't very tight, it was just broken off in the cylinder head.
Trending Topics
#8
Senior Member
Join Date: May 2004
Location: Oshkosh wi
Posts: 608
Likes: 0
Received 1 Like
on
1 Post
Car: 77 Firebird
Engine: 454
Transmission: th350
Axle/Gears: 4.10
I'm glad you decided to give it a try. Alot of time the bolts will be to stubborn to extract, but since you have to drill anyways you might as well try to exract the broken bolt first
Thread
Thread Starter
Forum
Replies
Last Post