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  #16 (permalink)  
Old 02-10-2013, 12:12 PM
the youngone
 

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i readed a lot of discus over about the swirlramp removal .. so i decide to one smooth him

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  #17 (permalink)  
Old 02-10-2013, 12:16 PM
the youngone
 

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  #18 (permalink)  
Old 02-10-2013, 12:17 PM
the youngone
 

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here a better view
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  #19 (permalink)  
Old 02-10-2013, 12:19 PM
the youngone
 

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http://imageshack.us/a/img845/791/1022013521.jpg here the cill wall where i talked about
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  #20 (permalink)  
Old 02-10-2013, 12:26 PM
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I'm no proffesional for sure, but i'll post a pic I found on the internet awhile back, and a couple of mine FWIW.
ssmonty
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  #21 (permalink)  
Old 02-10-2013, 12:30 PM
the youngone
 

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Hmm where that swirl heads? They look different than mine
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  #22 (permalink)  
Old 02-10-2013, 01:25 PM
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bot how is the condition of the cylinder walls like you see in the picture
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  #23 (permalink)  
Old 02-11-2013, 06:08 PM
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Wezz!

In the pic of the cylinder it doesn't look like they were honed? Did you install new rings? Did you have the pistons out? Or are you just installing a cam kit and heads?

Jester
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  #24 (permalink)  
Old 02-11-2013, 06:20 PM
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I can't say how well of a condition your cylinder walls are just by looking at them except that they have lost all of the cross hatch from wear. Can you feel a lip near the top where the piston ring stops it's upward travel and starts to go back down into the cylinder?(Top Dead Center) Commonly refered to as a ring ridge. If you can feel it with your fingernail you need to get an "inside" Micrometer or a bore gauge and take some measurements and refer to an overhaul manual to find out what the acceptable tolerance or wear limit is.
I know you have difficulties getting parts economically, but if you can feel a ridge, it may be time for an overbore and new pistons. If it was measuring 159.5418 POUNDS PER SQUARE INCH I'd say it was in pretty good shape. If you talking about pascals or something else I couldn't say one way or the other. I know they all didn't measure the exact same amount, but generally if they all measure within 10 percent of one another they should be ok.
No the heads I posted a pic of were not swirl port heads. I was just trying to give you an idea of what to get the guides to look like instead of having the big vane. You asked for a pic and thats all I had.
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Old 02-11-2013, 06:27 PM
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Quote:
Originally Posted by ssmonty View Post
I can't say how well of a condition your cylinder walls are just by looking at them except that they have lost all of the cross hatch from wear. Can you feel a lip near the top where the piston ring stops it's upward travel and starts to go back down into the cylinder?(Top Dead Center) Commonly refered to as a ring ridge. If you can feel it with your fingernail you need to get an "inside" Micrometer or a bore gauge and take some measurements and refer to an overhaul manual to find out what the acceptable tolerance or wear limit is.
I know you have difficulties getting parts economically, but if you can feel a ridge, it may be time for an overbore and new pistons. If it was measuring 159.5418 POUNDS PER SQUARE INCH I'd say it was in pretty good shape. If you talking about pascals or something else I couldn't say one way or the other. I know they all didn't measure the exact same amount, but generally if they all measure within 10 percent of one another they should be ok.
No the heads I posted a pic of were not swirl port heads. I was just trying to give you an idea of what to get the guides to look like instead of having the big vane. You asked for a pic and thats all I had.
ssmonty
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  #26 (permalink)  
Old 02-12-2013, 05:15 PM
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hello no i didnt get the pistons out .. like i said its my first project so onley the heads ported and new cam .. and clean up everything.. if you feel on the edge of the cylinder wall you can feel a little ridge on it .. but onley the dark ridge .. its not much and by looking the piston isnt touching it at all..

i looked a few days ago on the internet and I found a few pages that says that an interference fringe an accepted phenomenon .. but what will happen when I let it sit there is not a scratch or feel visible in the cylinder wall .. there was on that edge a little black attack like the pistons .. I HBE and edge gently cleaned the pistons also schooingeborsteld .. I have the pistons leave because this is my first project and I still do not know everything and I piston rings and bearings risky find ..

mn engine has basically always nice run. but had a leaky koppaking. and did only what cylinder machining done and everything cleaned e camshaft replacement for others
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  #27 (permalink)  
Old 02-13-2013, 01:32 AM
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Is it bad to only instal a cam kit .. The cylinders had a good compression ..
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  #28 (permalink)  
Old 02-13-2013, 09:30 AM
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No its not bad! Its done all the time! What did you clean your pistons with?

Jester
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  #29 (permalink)  
Old 02-13-2013, 10:00 AM
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Wits o Steelbrush. And putted cardboard in against the cyl walls. So i dont schratch them .. Good ?
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  #30 (permalink)  
Old 02-13-2013, 10:09 AM
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Originally Posted by Wezz View Post
Wits o Steelbrush. And putted cardboard in against the cyl walls. So i dont schratch them .. Good ?
I was guessing that! If any of the steel bristles came loose and went into the ring lands or are around the sides of the piston or rings they may cause damage!!! Was it a hand brush or a wire wheel?

Jester
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