how do you remove a partially stuck valve in a 4L60e valvebody? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-31-2011, 04:49 AM
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how do you remove a partially stuck valve in a 4L60e valvebody?

I found a partially stuck valve in my 4L60e valvebody, that i could not get completely out.
It would move in its part of the valve chamber, but not out past the stop pin location. (image attached. Click for larger image)
(video link - http://s1115.photobucket.com/albums/...veinrecess.mp4 )

I tried every thing from:
- air force behind it,
- to air suction in front of it,
- to over extended needle nose pliers,
-a can or breakaway penetration oil, an can of carbi cleaner. its not moving out of there.
Can it be taken out?, or
Can i leave it in and continue work on the 4L60e? or
Do i need a new valve body? (:
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Old 01-31-2011, 06:20 AM
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Is the outermost end of the valve stopping at the hole where the retainer pin is located?

If so, you need to use a fine file to take down the burr that's stopping it from coming out. Something like this:



If you were VERY careful, the same thing can be done w/a Dremel and a fine stone point, shaped for the job or a burr. A Cratex point will also work.
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Old 01-31-2011, 07:44 AM
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Yes that's right "the outermost end of the valve stopping at the hole where the retainer pin is located".

is this a common issue with the castings of this valve body, or is it just distortion from wear and tear?

I sacrificed one retaining pin that i remove and drilled a small hole in it to insert a long screw. This was then used as a plunger to feel that burr around the inner retaining pin location and the next opening just before it.

I'll get to that with a file and see how we will go.

Thanks Cobolt375 for the good advice.
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Old 01-31-2011, 08:51 AM
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Half an hour of careful filing with a fine semi circular file and Done!

Thank God for that.

Thanks again Cobolt327
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Old 01-31-2011, 08:53 AM
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You are quite welcome, but YOU did the hard part! Glad it worked out for you, though- and good job.
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Old 01-31-2011, 08:56 AM
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I like cobalts idea to remove bur being extremely careful not to scratch cylinder wall. Must remove 100% of the filings of course.

Also be extremely careful not to scratch valve piston wall when coaxing it out.

If valve piston fully strokes under it's own weight it is functioning properly.
Second choice is to not remove valve if its functioning properly.

Sorry...nevermind
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Old 01-31-2011, 09:09 AM
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Quote:
Originally Posted by 001mustang
Second choice is to not remove valve if its functioning properly.
Good point.
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Old 01-31-2011, 10:17 AM
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for those who want to see the video but are having issues with the link, it may have changed.
here is the new link.

http://s1115.photobucket.com/albums/...veinrecess.mp4

3 replies in 5 minutes, but thanks for the extra info 001mustang I will keep a mental note of that when inspecting and further cleaning.
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