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valve guides

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Old Aug 20, 2007 | 02:18 PM
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rudebwoy
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Default valve guides
whats all required to change valve guides in b series head? hydrolic press? or not?
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Old Aug 20, 2007 | 02:19 PM
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Default Re: valve guides
Originally Posted by rudebwoy
whats all required to change valve guides in b series head? hydrolic press? or not?
brass hammer and a soft drift. and a file if you burr a guide?
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Old Aug 20, 2007 | 03:35 PM
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Default Re: valve guides
Heating the block helps a bit, Just watch the valve seats don't come loose.
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Old Aug 20, 2007 | 03:37 PM
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rudebwoy
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Default Re: valve guides
Originally Posted by mosheen
Heating the block helps a bit, Just watch the valve seats don't come loose.
you mean the head?
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Old Aug 20, 2007 | 03:54 PM
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Default Re: valve guides
Blah, yeah the head. Not enough sleep last night.
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Old Aug 20, 2007 | 03:56 PM
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Default Re: valve guides
heat up the head in the oven gently.

i've also heard using liquid nitrogen to cool the guides ready for insertion. Helps get them in easier.
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Old Aug 20, 2007 | 05:01 PM
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Default Re: valve guides
Originally Posted by DrSeuss
heat up the head in the oven gently.

i've also heard using liquid nitrogen to cool the guides ready for insertion. Helps get them in easier.
or a freezer :1
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Old Aug 20, 2007 | 05:27 PM
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rudebwoy
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Default Re: valve guides
real real question is, is it recomended or necessary to change the guides when changing valves. I am building a new head for the new build. and I plan to get new supertech valves etc.
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Old Aug 21, 2007 | 11:31 PM
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Default Re: valve guides
if the head is very high mileage i would do it.
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Old Aug 22, 2007 | 12:00 AM
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Default Re: valve guides
Let the machine shop do it, trust me
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