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Author Topic: piston valve notching tool  (Read 42605 times)
Is1BadFord
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« Reply #15 on: February 17, 2009, 08:55:31 pm »

Very, VERY good timing guys!!!

We're getting ready to cut the pistons on this 86 5.0...this will save us some cash.

Thanks!!

Cris 
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oldmanjoe
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« Reply #16 on: February 21, 2009, 09:20:41 pm »

   i was pm-ed asking about the sand paper, what kind?      i used what is used to make belt sander rolls and floor sanders.       joe
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dennis112
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« Reply #17 on: March 22, 2009, 07:58:29 am »

Joe's idea worked for me.  I used a free 50 grit belt sanding roll, a cheap Chevy intake valve, and Industrial Super Glue--leaving it cure overnight.

I tried to do a cleanup with some 80 grit belt sanding roll on the end of the valve but it clogged up too fast so I went with a dremel instead.


















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Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
Antony Moore
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« Reply #18 on: March 22, 2009, 10:02:33 am »

This is such a good idea, I've used die-grinder/dremels, and I used the Isky cutting tool, it was borrowed. But when you talk about easy, cheap and smart this is it.
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Antony Moore
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« Reply #19 on: March 22, 2009, 10:05:01 am »

Make sure you check you radial clearance.
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oldmanjoe
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« Reply #20 on: March 22, 2009, 12:16:34 pm »

When you glue the sandpaper allow it to be bigger than the valve and it will cut some off of the radial side as well.

Good pics.

Try shaving creanm instead of tape.

   that is rite, when i cut the sand paper with a scissors , it left about a 1/32-1/6 around the edge.     after the first cut , the paper rolled over the edge and made a nice cut.     joe 
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Still in the classroom hopefully still awake !!!
 A mind is like a parachute it ONLY works when it is OPEN
 Grandpa`s word`s of wisdom, joey that thing between your shoulders is not a hat rack
 Only a rich man can afford cheap parts, because he can afford to replace them
 If you did not understand what i said,say so and i will try and explain it another way
Many of life's failures are experienced by people who did not realize how close they were to success when they gave up.
Don`t get frustrated...get educated,you are at the library now ,so start reading .
Life`s journey is not to arrive at the grave Safely in a well preserved body,Rather to skid in sideways, out of control, totally worn out, Shouting Holy shit what a ride.
Inside the box is too crowded for me!!! besides every time you get going you run in to another corner.
 SPEED READING and written technical information , Don`t go together
Time is the best teacher, but most of its students die before learning the lessons.
IF YOUR READING COMPREHENSION IS NOT
OF A 5TH GRADE LEVEL DO NOT PROCEED {jay allen}
The voices in my head may not be real, but they have some good ideas!
dennis112
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« Reply #21 on: March 22, 2009, 12:24:53 pm »

As far as radial clearance goes, well, I expanded on Joe's idea and perused the Melling catalog for some real cheap oversized valves and ordered them from Autozone.  I used a 1.72" diameter intake valve to cut for my 1.6" exhaust valve and then checked radial clearance using play dooh.  The melling valve was $5 bucks and a 2.19" intake valve (to notch for a 2.08" intake valve was closer to $10.  I didn't need to clearance the intake so it will be returned.
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Dennis

65' Stang, 434W NA, Victor Heads, Super Vic Intake, 11:1, Braswell Carb, Bullet SR Cam, G101A 4-Speed, 4:56 rear, 93 Octane Pump Gas  9.82@138.00
mystang
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« Reply #22 on: March 22, 2009, 02:57:27 pm »

thanks.....thats a great way of cutting pistons
i'll be checking that out on my next build
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Dougy_Fresh
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« Reply #23 on: April 05, 2009, 09:39:15 pm »

never thought of that. i will definately be using this tip when i build my motor.
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PJC Racing
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« Reply #24 on: April 11, 2009, 10:42:30 am »

I just completed this on my engine with Joe using his method and shaving cream. The shaving cream is alittle on the messy side. I would like to try Dennis' method with the tape next time.
Here are some pics:


* Piston Notching 010.jpg (1319.52 KB, 2856x2142 - viewed 862 times.)

* Piston Notching 008.jpg (1019.93 KB, 2856x2142 - viewed 1044 times.)

* Piston Notching 011.jpg (1551.81 KB, 2856x2142 - viewed 1895 times.)

* Piston Notching 012.jpg (1101.92 KB, 2856x2142 - viewed 910 times.)
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foxbody92
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« Reply #25 on: April 12, 2009, 09:48:54 am »

  AWSOME tip that will definately come in handy 
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bluestang67
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« Reply #26 on: April 24, 2009, 11:23:10 pm »

Great tip and engineering of a tool . Will keep the build price down a bit and you cant ask for more then that . Oldmanjoe hats off and thanks for sharing this tip . Smiley
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Bobby D.

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Smokehouse
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« Reply #27 on: May 27, 2009, 10:13:38 am »

Thanks for the tip! It's people like you that share your secrets that help us all save money and time.
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Is1BadFord
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« Reply #28 on: May 27, 2009, 11:49:49 am »

Thanks for the tip! It's people like you that share your secrets that help us all save money and time.

Yep!!

To add to it, we've been using a 2.19" Cleveland intake valve and a 1.78" 302 intake valve respectively for the intake/exhaust...which we've beveled on a drill press to get a nice radial curve that smooths the pocket so there is no sharp edge.  That gives .070" radial clearance on the intake with a 2.05" valve, and .090" radial on the exhaust.  We don't leave much overlap on the paper now, since it's not necessary.  We're also using a 36grit belt for the abrasive.

Works great =D.

Cris 
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EHA Racing
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« Reply #29 on: November 19, 2009, 08:54:56 pm »

subscribed! I like this thread! 
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