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CNKS Intake solution

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Janicholson

05-20-2007 06:56:11




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This will work (permanently or temporarily)

Use a thin popsickle stick like piece of wood that is tapered in thickness. push it into the gap until the gap is scraping the wood (this measures the gap/s). List each gap on scrap paper to be sure to get it correct. Take the Manifold off (one more time I know)
Make new (or use pieces of the old gasket) to build up the ports to fill the gap. use blue RTV gasket goo on the intake components to assure a fair seal, and reef it down well when tightening starting with the bolts on the gappy ports. If you can, tighten the exhaust to the intake after the intake is tight to the block. Good luck, JimN

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CNKS

05-20-2007 18:03:32




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 Re: CNKS Intake solution in reply to Janicholson, 05-20-2007 06:56:11  
It's solved -- see post above.



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Ron in Nebr

05-20-2007 10:09:36




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 Re: CNKS Intake solution in reply to Janicholson, 05-20-2007 06:56:11  
Just a quick comment on the above suggestion- don't use blue RTV silicon on any intake or carb gasket where it'll come in contact with gasoline. Gas will turn that stuff to gel. Better to just get things to fit right and use the proper gasket.



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MN Scott

05-20-2007 07:58:29




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 Re: CNKS Intake solution in reply to Janicholson, 05-20-2007 06:56:11  
What brand of intake manifold gasket did you use? When I replaced the one on my 706 I got a flat sandwich type gasket from A&I. I had the same problem a gap. I went to the dealer and bought the IH one that is a flat peice of tin with thick sealing rings around the intake ports, problem solved. Also you gotta torque those bolts down tight and don't tighten the two manifolds together untill you tighten the block to intake bolts first.

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CNKS

05-20-2007 19:21:43




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 Re: CNKS Intake solution in reply to MN Scott, 05-20-2007 07:58:29  
I fixed it. I loosened the bolts that hold the two halves together, and tightened the bolts to the head first. I thought I did that when I first installed it, I just didn't get it lined up right. I am repeatedly able to make simple things complicated. On my manifold, intake and exhaust are tightened by the same bolts using a thick washer between them. I doubt if I have more than 30 lbs or so torque, my gasket can be squashed -- not IH, came with the engine kit.

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MN Scott

05-20-2007 20:37:33




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 Re: CNKS Intake solution in reply to CNKS, 05-20-2007 19:21:43  
Glad to hear you got it sealed up. One more tip, check those intake bolts every 25 hours or so for the next 200 hours as they have a habit of loosening up. If you run it with a intake leak you can score a cylinder. Book called far 40 ft lbs on the intake to block bolts on my 06.



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Hugh MacKay

05-20-2007 07:42:24




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 Re: CNKS Intake solution in reply to Janicholson, 05-20-2007 06:56:11  
Jim: Your title startled me, reminded me of something I once said to a neighbor. I was doing custom combining for him. I also knew he had more combine experience than I at that time, and further I knew he was itching to get his hands on the operator controls of my new combine. Finally I said to him, " I have reason to go home for a spell, do you want to operate the combine." Of course he jumped at the idea.

About an hour later he phoned me saying the combine had quit, a 354 Perkins diesel. By the time I got there he had it going again but could hear unsteadyness of engine. I looked it over and low he had put a feed bag over the air intake, not jute like the old timers would do, but one of the new plastic woven feed bags. As he was operating I went across top of combine, untied the bag, pulled it off and combine started working perfect. By this time another friend arrived on the scene, bear in mind we all enjoyed getting a dig in at each other shortcomings. I said, " Gordon, the next time you pull a stunt like today we will pull the woven plastic bag over your air intake."

I hadn't read the other thread and was unaware of just what CNKS's air intake problem was. Don't worry Charles, I'm not suggesting a plastic bag for you.

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CNKS

05-20-2007 19:25:25




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 Re: CNKS Intake solution in reply to Hugh MacKay, 05-20-2007 07:42:24  
Some days lately it might have been beneficial, to help clear my brain, as long as I didn't leave it on too long.



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