Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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Here is a picture of the tool from PNW along with their instruction page.
Posted on: 2022/1/7 15:38
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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You caught my attention when you said "like an idiot", made me think I need to read this!!! The picture of these guides are the correct way up, yes? It's the way the ones in the car are right now, but that doesn't make them correct..............piston #8 was pointing backwards. :-/ I measured the top of the guides as being 1 1/16" from the deck. Seems in line with what everyone else is saying.
Posted on: 2023/7/25 17:24
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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Did you use the same method to "pull" the new valve guides in?
Posted on: 2023/7/25 17:31
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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IIRC installing the new guides was easy, after packing them in dry ice. Just a light tap required:
Here is what I wrote: I used the Goodson hand driver to put the valve guides in, as I did such damage to the JB HD-343 when pounding the old valve guides out. Packed in Dry Ice for 5 hours and with a little bit of grease they went in pretty easy, the tool doesn't look damaged at all, and I didn't have to pound very hard in comparison to what it took to take them out. I even put one valve guide in too deep accidentally, and was able to pound it through and re-insert it from the top. Someone else mentioned using the screw press backwards, that would work too. I did protect the block with pieces of wood as in the pictures
Posted on: 2023/7/25 21:05
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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So far not having much luck....
packardinfo.com/xoops/html/modules/newbb ... 7633&post_id=259698#forumpost259698
Posted on: 2023/7/25 21:17
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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Quote:
How BIG a hammer did you use when pounding out your valve guides? I have the machine shop making me a driver and then this is my next project. I tried a few variations of the threaded rod extraction method, which would maybe work if they hadn't been in there for 70 years! I watched a guy on YouTube working on an old Jeep engine and the tops of the guides he drove out all shattered and then he just kept bashing them until they started moving. It seems once they start moving then you're good to go. I'm working on my engine in the car, so I won't be changing valve guides on #8, but they're not too bad, #4 is the worst one.
Posted on: 2023/7/31 10:26
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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I had to hit it pretty hard, so much that the tool, which was made of hardened steel (I got them from two different vendors with the same result, in the notes) mushroomed.
The valves I removed were because of an issue with installation, so it makes sense that the screw press worked for that but maybe it would be more difficult for 70-year-old-guides. I used a handheld sledge and put wood blocks around and swung it pretty hard. If i was doing #8 I might have to take the hood off, but if you are just doing #4 you would have enough room. Hold the valve driver with blocks so that you don't have to hold it with your other hand, so you can swing freely. list of valve guide drivers and picture of handheld sledge and blocks
Posted on: 2023/7/31 13:03
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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Quote:
Thank you for the additional feedback! My plan is to replace guides for cylinders 1-7 because they're not expensive, but if they don't come out very easy I may rethink that. I suppose I'll have to watch and if my driver starts to mushroom I'll just clean it up a bit with the grinder. It looks like you have a pneumatic valve guide removal tool in the one picture, did you use that?
Posted on: 2023/7/31 13:41
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Re: Tappet Clearance Tool J-4540? Valve Guide Driver J-2577?
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I didn't do much experimentation with the pneumatic tool. I have issues with how loud the compressor is and trying to keep the neighbors happy. But it truthfully didn't feel like it had enough oomph.
One other thing you might do is remove the studs before you do this, that would make it easier and you wouldn't have to stack the blocks so high so that they protect the studs from being hit by the hammer.
Posted on: 2023/7/31 13:52
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