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Isky cam specs |
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Butch(OH)
Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3834 |
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Only in worn out parts and your little dream world does a cam grind start to lift, go back down and then lift again,,,,
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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So are you telling me that the Barney cam you traded to me is a junk piece? |
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20523 |
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The A-C 175 cam specs I have provided are directly taken from the Official A-C Service Manual. They refer to the info as valve timing. There is zero reference to .050" of anything. I believe it is actual valve opening and closing with the valve lash adjusted to specs.
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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The cam Pankey traded Larry came from the late jt Richardson it was the smallest cam of the two grinds . If you are of the believe that you should close the intake valve at bdc you will love it . If your of the belief that you need overlap cause air has momentum and can fill the cylinder even with piston rising then you will hate it. Tom yes I knew as well as Pankey that the valve events but with a little math it can be figured and if degreeing a cam in block its easier to measure events at .050 so we assume its .050 knowing that it would be greater than the actual valve lash . Only way Pankey would know for sure is to can Dr. A actual 175 cam and the only person who has one is you.
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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Maybe I should find a Cam doctor local and see what he says. Butch, does Fowler have one? I think I need to call Barney and talk to him too. Might answer a few questions
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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Larry who spec the cam you traded to Mitch since you know who spec the cam he traded you . Call barney I think you'll find he likes overlap .however we know nelson doesn't cause he was bragging about recamming a motor barney had done with his camshaft instead of barns . after all nelson gone he got the info on ICL so now he can follow in Pankey footsteps
Edited by mgburchard - 11 May 2015 at 8:16am |
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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Its a great cam Pankey says if you have stock stroke and use a 8.5 inch long rod
Edited by mgburchard - 11 May 2015 at 8:53am |
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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A local guy speced that cam and to talk to him, we need to dig him up. He may not say much though. |
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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wi50
Orange Level Joined: 24 Sep 2010 Location: weegieland Points: 1010 |
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How does the exhaust duration increase? You edited the post, so you put your best thought into this......exhaust timing events change, but explain how the duration changes |
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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wi50
Orange Level Joined: 24 Sep 2010 Location: weegieland Points: 1010 |
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I don't suppose it would do any good to explain the asymmetrical lobe pattern i put in would it. |
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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You could but it would just be redundant I already described it in detail cause that's Larry's cam he got from Pankey
Edited by mgburchard - 11 May 2015 at 10:38am |
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Butch(OH)
Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3834 |
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First it is a Pank grind and a deeply held speed secrete then it transformed to a standard Richardson grind and now a Barney Taylor cam???
I think it is a Chameleon cam since it changes by the hour. Larry, Fowler is out of buisiness last I new, check with Terry Shade at Belleville Last I knew Cam Dr was not a machine but a computer program that is used with shop built stands and user supplied inputs for linear and rotational motion. (To save head scratching and stupid posts that's up and down and round and round Pank.) They maybe building complete units now? When set up correctly it will chart a camshaft. To check a single camshaft charting can be done at home. Easiest if installed in a short block. All you need is a degree wheel, a dial indicator, graph paper and about a half hour to plot the readings. Then you can proudly boast that your tractor has a charted camshaft in it,,whoa!! Be sure to let us know all about how it ramps up, then goes back down, then ramps up again like the Tennessee two step,
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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I wasnt sure about Chris and forgot about the "Shade Grenades" from Belleville. |
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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Sorry for my stupidity, but who is Nelson? |
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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RichinIL
Bronze Level Joined: 21 Mar 2010 Points: 22 |
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Marty Nelson aka Wi50
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wi50
Orange Level Joined: 24 Sep 2010 Location: weegieland Points: 1010 |
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Not only did it come from Richardson, it came from Barney, then it is one pank specked out......it's one pank used, didn't use. It's the best cam ever, then in another statement its the worst cam ever. Then it's an asymmetrical lobe patten, but only in the first few thousandths of lift where it's taking the valve lash up, and get this it only has .230 of lift. |
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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I forgot that part. |
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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Larry(OH)
Orange Level Joined: 11 Sep 2009 Location: Shreve Ohio Points: 1577 |
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Hey BArney, your 2 cents worth?
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'40 WC puller,'50 WD puller,'50 M puller '65 770 Ollie
*ALLIS EXPRESS contact* I can explain it to you, BUT I cannot understand it for you!! |
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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Butch you can't keep up can you .Panks cam he traded to Larry came from Barney's cam grinder Jt Richardson . It was the small cubic inch grind and the bigger grind worked better it as Pankey says was a step backwards . Negative 5 overlap be good for a engine that dwells at tdc along time cause long dwell makes small combustion chamber.Like what a8.5 to 9 inch rod would
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Ken(MI)
Orange Level Joined: 14 Sep 2009 Location: Lansing, MI Points: 618 |
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Now a long dwell creates a small combustion chamber? REALLY? So by changing the length of the rod, you can change the size of the combustion chamber? Please expound on this, I can't wait to see how this latest twist develops into another case of Pankeys foot in mouth disease. Geometry is geometry and dimensions are dimensions, and how long it takes for the piston to accelerate and decelerate has absolutely no bearing on where it stops at TDC.
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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OK Ken the cylinder head has no combustion chamber the combustion chamber is the top of the block down to piston at tdc. Now if the piston dwells a long period then less overlap is needed . Big combustion chambers need more overlap to fill chamber .
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wi50
Orange Level Joined: 24 Sep 2010 Location: weegieland Points: 1010 |
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You stated in a different thread that you (pank) specked out the cam he gave Larry. Now you state low lift (.230) and -5* of overlap. Well a bone stock cam has 16 degrees of overlap. Dr's specs say 3* btdc intake opening to 13* Atdc e haist closing. To get less overlap, you would have to grind lesser duration, and/or change the lobe separation angles dramatically. Why on earth would you do that? How and why would you ground a cam with 21 degrees less overlap......then in this thread you say it's something Richardson did for Taylor. 2 well respected people in these engines. Your story is conflicting, your math is wrong. Or you've lied so many times, you forgot what you were lying about. |
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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blue924.9
Orange Level Joined: 22 Mar 2013 Location: George Iowa Points: 1086 |
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Oo boy, might have to alert Isky Bout this one
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hi my names dan, I am a young guy. i have a problem, i prefer my tractors orange and my clutches mechanical, thanks for letting me share
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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I've never spec a can .Pankey and can grinder does that
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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Edited by mgburchard - 13 May 2015 at 7:10am |
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blue924.9
Orange Level Joined: 22 Mar 2013 Location: George Iowa Points: 1086 |
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Huh how long does it take to grind a can? days? Or does it depend on what kind of pop it was
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hi my names dan, I am a young guy. i have a problem, i prefer my tractors orange and my clutches mechanical, thanks for letting me share
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Butch(OH)
Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3834 |
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And that was after Editing,, LOL The pre-edit version was probably like this,, nelsonIthoughtyoudontlikeoverlapbeingfromdurationnowyouraskingwhyacanwouldhave less than21degreessoyourinaagreementhattheyneedmorethan21degreesofoverlapfromatighter LSA |
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wi50
Orange Level Joined: 24 Sep 2010 Location: weegieland Points: 1010 |
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You seam to invent more things I said as you go. Read page 1 again and see if you can grasp more than half of what I said, and don't make up your own version....use your best 5th grade reading comprehension skills. What I'm curious on here are the conflicting stories of pank. He designed the cam, then he got the cam from Barney who got it from Richardson. Then the cam is junk and has 21 degrees less overlap than a bone stock cam does, and it only has .230 lift. So let me lay it out like this, 1. You lie and don't even know what you lie about. (proven) 2. Pank can't measure, doesn't know what the numbers mean, or didn't know what the specs were. (highly likely) 3. Pank knew the specs and would willingly pass off bad parts on to someone unsuspecting (I have no doubt pank would do that, but I doubt he knew the specs, if he were smart and/or honest he would have scrapped it) 4. JT and Barney didn't know what they were doing and made junk. (2 well respected people on these engines passed off junk (not likely at all). If the cam was the specs pank listed here, Larry's engine would make about 15 hp on a good day, and it runs better than that. Now lets get back to this fuel injection. Or is pank to busy at his MUFON convention reporting UFO sightings to cover more on mechanical fuel injection? |
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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Butch(OH)
Orange Level Joined: 11 Sep 2009 Location: Lucerne Ohio Points: 3834 |
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Marty,
You forgot to add Isky on the list of grinders, LOL Past the who did what mystery I am more curious about this Pank designed double dipper grind where the lash closes and the valve starts to lift then slams back closed for a bit before finally lifting the valve?? Think about all the intake inversion, diversion and perversion going on with that would ya??? |
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mgburchard
Orange Level Joined: 14 Sep 2009 Location: Tennessee Points: 1123 |
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Pankey traded a cam he doesn't like for a cam that Larry didn't like even trade both traded for something in hopes of liking .Larry provided no specs to Pankey . Pankey told Larry it was a can for small cubic inches. As for Pankeys grind its been around since 1960 and is very common but not assymetrical . No where near like the one cranky posted picture of however the one Larry got its lobe looks a lot like the image cranky provided in the 175 specs. Butch look at it if you can't understand up lash ramp down in valley and back up hill .
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