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8N Valve Seat concerns


 
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Eriklane
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Joined: 30 May 2007
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Location: Rockford, MI

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PostPosted: Fri Apr 17, 2009 6:22 pm    Post subject: 8N Valve Seat concerns Reply to specific post Reply with quote

Got a replacement block and the valves were a bit rough, some rust, finally got them all out. Seats are rusty. I'm wondering what options I have here? Do all seats need to come out and be replaced?

I have a welder-buzz box-I'm loathe to break this block doing the bead method...advice?
 
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Dunk
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Joined: 03 Nov 2006
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Location: GA

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PostPosted: Fri Apr 17, 2009 6:34 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Eriklane wrote:
(quoted from post at 22:22:45 04/17/09) Got a replacement block and the valves were a bit rough, some rust, finally got them all out. Seats are rusty. I'm wondering what options I have here? Do all seats need to come out and be replaced?

I have a welder-buzz box-I'm loathe to break this block doing the bead method...advice?


You need a good machine shop man to look at them and answer that question.

And to fix them if they need it.
 
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Den N Ms
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PostPosted: Fri Apr 17, 2009 6:42 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Eriklane ,Advice,take it to a good machine shop and have them inspect the valve seats.Have them grind them or replace the valve seats.Also while you have it there have them replace the sleeves,thus chances are a lot Less you will have another broken block.
 
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Hobo,NC
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Location: Sanford, NC

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PostPosted: Fri Apr 17, 2009 6:43 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Eriklane wrote:
(quoted from post at 03:22:45 04/18/09) Got a replacement block and the valves were a bit rough, some rust, finally got them all out. Seats are rusty. I'm wondering what options I have here? Do all seats need to come out and be replaced?

I have a welder-buzz box-I'm loathe to break this block doing the bead method...advice?


If your block has harden seats then the welder will work to help you get them out,,,, I did run into one block that did not have harden seats and almost fudged up a good block try'n to remove seats with a welder that were not their

My question would B how do you plan to install the new seats

Once installed do you have the equipment to grind them,,, new'ns need to b ground for the proper fit,,, a hand job will not do Laughing
 
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Eriklane
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PostPosted: Fri Apr 17, 2009 6:53 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Hmm. Any chance of touching the existing seats up? I realize I don't have a picture here...
 
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Den N Ms
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PostPosted: Fri Apr 17, 2009 6:59 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Eriklane ,A machine shop can touch them up,they have the proper tools,mandrels and stones.Or replace one or more if need be.
 
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Dell (WA)
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PostPosted: Fri Apr 17, 2009 7:03 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Erik.......you ask......"valves were a bit rough, some rust, finally got them all out. Seats are rusty. I'm wondering what options I have here? Do all seats need to come out and be replaced?"......NO, NO, NO!!! That is what valve grinders are for. Machine shop grinds new smooth valve seats. Also grind the valves smooth too. You doubt? Tak'er to enny automobile machine shop and ask questions. ......respectfully, Dell
 
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Den N Ms
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PostPosted: Fri Apr 17, 2009 7:11 pm    Post subject: Re: 8N Valve Seat concerns Reply to specific post Reply with quote

Eriklane ,Don't be so frugal and take it to a machine shop where the guys there have a zillion tons of hands on experience.Ya know what happened the last time you played machinist.
 
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