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View Poll Results: Are you capable of drilling and tapping a hole in an engine component. | |||
Absolutely. | 38 | 52.05% | |
Probably. | 25 | 34.25% | |
Probably not. | 8 | 10.96% | |
Absolutely not. | 2 | 2.74% | |
Voters: 73. You may not vote on this poll |
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#1
IP: 38.102.16.112
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Drilling and tapping a hole
Help me settle another breakfast table bet with Don.
The question is this: Laying aside the issue of access, would you consider yourself capable of drilling and tapping a hole in an engine component and willing to undertake the task for some reasonable benefit? Bill Last edited by Administrator; 06-16-2011 at 08:57 AM. |
#2
IP: 107.0.6.130
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Quote:
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#3
IP: 69.177.114.72
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I voted 'absolutely' as I have done this successfully. Being able to use a drill press for the drilling is a big plus, otherwise you need some sort of fixture to hold the drill (and tap) square. Doing it freehand is asking for trouble as the hole and threads are likely to be off alignment. Often the mating part can be used as a fixture with suitable bushings around the drill and tap.
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#4
IP: 206.125.176.3
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"Absolutely"
I just recently did so when I enlarged my side plate from 3/8" NPT to 1/2" NPT. I will confess I did the same as Al, and took the plate off and used my drill press & tapped the plate in a vice, so access and alignment were not factors. However, I have also drilled the block in the boat to repair my failed 1/8" aft block drain and re-tap to 1/4". That was one of my first tasks when the old galvanized piece fell off the motor into my hand the first winter. The 23/32" drill bit for the 1/2" tap cost 3 times what the tap cost!
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-Shawn "Holiday" - '89 Alura 35 #109 "Twice Around" - '77 C-30, #511 with original A-4 & MMI manifold - SOLD! (no longer a two boat owner!!) Last edited by sastanley; 06-16-2011 at 09:55 AM. |
#5
IP: 24.152.131.220
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As this is a do it yourself forum, I would think drilling and tapping would be a basic skill. Sure, there are members who don't consider themselves mechanics but I read over and over their personal satisfaction as they discover they can do it.
For those who don't know or haven't drilled and tapped before, give it a try, it's not that hard.
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
#6
IP: 130.36.62.222
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Yes!
I was really apprehensive about tapping new threads into the engine block for new manifold studs. The old bolts had stripped the threads in the block.
I found it to be easy (soft metal on the block) and VERY rewarding. Careful to go in straight, and not "screw"-up, things went well. Using a helicoil and JB weld, now I have a well-seated manifold via studs. -Rick |
The Following User Says Thank You to rpowers For This Useful Post: | ||
TimBSmith (10-06-2020) |
#7
IP: 199.173.224.31
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On my old engine, I did it by HAND - turning the tap with a wrench due to lack of access.
Of course this may help explain why I got a new engine |
#8
IP: 174.65.54.224
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Yes..........
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"Jim" S/V "Ahoi" 1967 Islander 29 Harbor Island, San Diego 2/7/67 A4 Engine Block date |
#9
IP: 38.102.16.112
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Of course, we were looking up logs, carrying around slide rules (a badge of honor), etc. at the time. Ours was the first class not required to do drawings in ink. Bill |
#10
IP: 24.152.131.220
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Oooh, that brings back memories. I still have my bamboo Pickett.
I also believe learning CAD is much easier if you've come from a T-square background. In fact, up until maybe the late 70's I had a cabled straightedge drafting table after which I graduated to a mechanical drafting arm. Now they're museum pieces as am I. Scum bags, triangles, compass, circle and ellipse guides, eraser shield, slide rule, I had experience with all of that stuff but I swear NO POCKET PROTECTOR! NEVER!! The first electric calculator I ever saw was in a physics class in my second year of college. It was the size of a phone book and cost $800 (over $2K in today's money). Where's my Geritol? Any of you whippersnappers even know what Geritol is?
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
The Following User Says Thank You to ndutton For This Useful Post: | ||
Sam (03-01-2020) |
#11
IP: 68.224.125.208
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And did you watch Jack LaLanne every morning on KCOP?
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-Jerry 'Lone Ranger' 1978 RANGER 30 |
#12
IP: 24.152.131.220
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Don't forget Lawrence Welk and Mitch Miller!
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
#13
IP: 74.110.198.83
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I also have a late 1930's Walker-Turner 16" saw that is just under 500 lbs. It's all cast iron, whereas today's modern 16" saws are all stamped steel and aluminum.
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- Bill T. - Richmond, VA Relentless pursuer of lost causes |
#14
IP: 174.94.19.65
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For the record - drilling and tapping a hole with the right tools and technique...no sweat. |
#15
IP: 99.249.253.58
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Dont yell at me........
It would be very interesting to see what the average age is of those who have the skill of drilling and tapping......
I'm 45, , and grew up with my older brothers building real Hot Rods ( unlike the annoying things that swarm around today , that beg to be swatted with a rolled up newspaper) I was exposed to many mechanical tricks , however this wasnt one of them. Hopefully my 35 year old A-4 wont require this procedure any time soon.......
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Jimmy C&C 29 MK1 Erieau , Lake Erie |
#16
IP: 96.228.21.70
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I'm 45. Took machine shop, welding, and three semesters of small engine repair in high school. Spent a lot of time taking apart and putting back together my various bicycles, and those of my buddies (we used to make custom "choppers" out of our 20-inch Schwinns) and later, my dad's lawnmowers (rebuilt the transaxle on the riding mower when I was 15, much to my dad's amazement and relief when I got it back together and it actually worked) and then my motorcycle (1972 Yamaha DT250).
In more recent years, I have done full tear-down, nuts and bolts restorations of antique woodworking machinery. I've actually never really considered myself a "gear head", per se, because I've never really gotten into engine building or hot rodding - but I always have been a hard-core do-it-yourselfer and home handyman. My motto is "I can fix anything." So far, that pretty much has proven to be true.
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- Bill T. - Richmond, VA Relentless pursuer of lost causes |
#17
IP: 98.226.209.168
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I do not know if I am capable. Never tried it in my engine, or an engine component. So, I could not reply to the survey. Have drilled/tapped into my aluminum mast and boom however. Successfully.
Mary |
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