aliveagain
Needs a life
Posts: 5033
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posted May 27, 2010 03:18 AM
ok, whats with the popsicle sticks?
I am in my usual struggle to install the cylinders and remember entropy talking about popsicle sticks. I had assumed they were fitted in between the pistons to hold the rings compressed while sliding the cylinder over the pistons. Who knows, maybe I had the wrong size sticks. I think mine were made for arts and crafts. If this was the intended method, would ring gap positioning be critical?
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I wondered why the baseball kept getting bigger. Then it hit me.
  
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JOHNJ
Novice Class
Posts: 70
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posted May 27, 2010 05:26 AM
Probably put under the piston skirts to keep the pistons level and straight while lowering the cyl. over them? Maybe..
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kawasakijockey
Pro
Posts: 1876
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posted May 27, 2010 05:57 AM
lol. No man, you use them to push the rings in when installing pistons.
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Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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aliveagain
Needs a life
Posts: 5033
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posted May 27, 2010 08:38 AM
quote:
lol. No man, you use them to push the rings in when installing pistons.
That seems to be where my trouble starts. Not much of a taper on the bore.
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I wondered why the baseball kept getting bigger. Then it hit me.
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entropy
Moderator
Posts: 8671
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posted May 27, 2010 09:18 AM
quote:
lol. No man, you use them to push the rings in when installing pistons.
ding-ding-ding, we have a winner!!!!!!
BUT...
On cyls like Pete's & mine with virtually no chamfer, it is REAL FUKKEN difficult to put the block over the pistons, no matter how many popsicle sticks you have.
In Feb, I had 20,014 popsicle sticks and still could not do it, so i bagged em up and brought em to Tim Chin. Brenda Sue & I put the 6 garbage bags of sticks in Tim's car at Mojave in March. We need a report, Tim...
I always put the pistons into the cyl before bolting the rods to the crank.
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aliveagain
Needs a life
Posts: 5033
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posted May 27, 2010 09:24 AM
Any tips on installation when cases are not split? Do you guys put 2 in the hole and then the other 2 or work all four together into the cylinder?
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I wondered why the baseball kept getting bigger. Then it hit me.
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kawasakijockey
Pro
Posts: 1876
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posted May 27, 2010 09:40 AM
It is easier to me to do the two insides first with them being at there highest point of the stroke then rolling the crank about 90 degrees to get the outside ones in.
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Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
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brendasue555
Expert Class
Posts: 436
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posted May 27, 2010 10:10 AM
Tim is probably making wood shavings out of them so I will have a fresh nest for the trip to Loring. If not it is going to take twice as long to get there.
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Brenda
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KZScott
Needs a life
high on speed
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posted May 27, 2010 02:21 PM
quote:
It is easier to me to do the two insides first with them being at there highest point of the stroke then rolling the crank about 90 degrees to get the outside ones in.
thats how i do it when the cases arent split. its about a gazillion times easier to do it one at a time with the cases apart.
last yr i put dads block down over the pistons instead of one at a time. his 1287 block was done with NO chamfer (by request). it took both of us to say the least....
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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tcchin
Zone Head
Posts: 867
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posted May 27, 2010 06:03 PM
quote:
Tim is probably making wood shavings out of them so I will have a fresh nest for the trip to Loring. If not it is going to take twice as long to get there.
Actually, I was thinking of using them, along with some aircraft structural epoxy, to make things. Strange things. Unnatural things. Or I may donate them to my kids' preschool for arts & crafts projects.
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brendasue555
Expert Class
Posts: 436
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posted May 27, 2010 06:16 PM
What are theses strange unnatural things you speak of. I must see these things at once.
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Brenda
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gs11ezrydr
Novice Class
Posts: 34
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posted May 27, 2010 07:36 PM
School me please! I would like to know why you requested NO chamfer on the bottom of your cyls. What is the advantage? More surface area, less piston rock, better oil control,less blowby.
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aliveagain
Needs a life
Posts: 5033
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posted May 28, 2010 04:01 AM
quote:
School me please! I would like to know why you requested NO chamfer on the bottom of your cyls. What is the advantage? More surface area, less piston rock, better oil control,less blowby.
I was kind of wondering that myself.
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I wondered why the baseball kept getting bigger. Then it hit me.
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted May 28, 2010 04:21 AM
So am I
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It's not that I think you're dumb, it's just that so much of what you know isn't true....
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KZScott
Needs a life
high on speed
Posts: 7235
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posted May 28, 2010 12:42 PM
we eventually plan on putting a big crank in it, so added skirt support was the goal there
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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entropy
Moderator
Posts: 8671
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posted May 28, 2010 09:43 PM
pistons come way outa cyls on stroker 12's, every bit helps
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gs11ezrydr
Novice Class
Posts: 34
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posted May 29, 2010 07:09 PM
Hmmm Makes sense to me. When I chamfer 2 stroke ports that is what I'm going for also. Especially the chamfer at the bottom for added support besides all the transfer ports all add up to less surface area and can also alter the port timing ever so. Thanks
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