Quote:
Slant zilla, Did you move to california?? I thought You were in the windy city for some reason, and today I noticed it said Chico near your flag in the Avatar.
Greg
What? I see Nebraska. Greg
I move a lot since I'm retired.
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| Grooving lifter bores https://slantsix.org/forum/viewtopic.php?t=21616 |
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| Author: | icaneat50eggs [ Sun Jan 28, 2007 8:01 pm ] |
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That is broach set for cutting keyways. It would definitly groove a lifter bore, but probably too wide and too deep..... unless you had a custom broach made. For a decent lump of money. I am unsure what is under the lifter bores, but broaches generally need to be pushed all the way through. |
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| Author: | Doctor Dodge [ Sun Jan 28, 2007 10:04 pm ] |
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Quote: Does anyone have a pic of this to post?
It is hard to get a good photo of the inside of a SL6 Lifter bore...A picture would help me to understand the Discussion here. I had Just Honed out my lifter bores a bit with the Brake hone when I did my last block, But I did no such "Grooving" ... I will see if I can mock something up to show what we are doing here. Honing out the SL6 lifter bores is a must in my mind, most SL6 lifter bores are way to tight, almost "sticky" when the lifters go in. DD |
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| Author: | emsvitil [ Sun Jan 28, 2007 11:12 pm ] |
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I'm not endorsing the companies that these links are from, information only ..... buyer beware etc............ anyway here's some info (with diagrams/pics) https://www.goodson.com/technical_suppo ... GT-842.pdf http://www.compcams.com/Products/335-353.PDF |
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| Author: | panic [ Mon Jan 29, 2007 9:16 am ] |
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Note that the tool shown bleeds off gallery pressure DOWN to the cam (no pressure leak back up to the valley), and doesn't connect to the drain oil above the tappet. For a /6 it should go full length. |
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| Author: | valiantboy_66 [ Mon Jan 29, 2007 1:21 pm ] |
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Thanks doc I am pretty close to that now. I will hone the bores when I get to the machine shop this week. |
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| Author: | Bren67Cuda904 [ Mon Feb 12, 2007 12:05 pm ] |
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quoted DD Another area to spend some time on is the lifter area and lifter bores. First drill some extra 1/2" oil drain back holes between the lifters and tap these out with a 3/8 – 16 NPT (or 5/8-16 unc) to accept "standoff" pipes. I understand the standoff pipe reasons and the extra hole drilled over the fuel pump arm (if fuel pump is used), but why the extra holes with standoff pipes? Shouldn't one standoff per pocket be enough? There is one hole up against the end. How do you tap that one? |
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| Author: | Doc [ Mon Feb 12, 2007 2:59 pm ] |
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These holes are the pathway for crackcase - blow-by venting. I tend to drill a couple of extra holes for engines that get stand-off just because the stand-offs tend to reduce the exsisting hole size. I just want to be sure there is enough of a path for pressure to escape, especially for a high RPM engine. DD |
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| Author: | ROADRUNNER7169 [ Tue Feb 13, 2007 9:57 am ] |
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forgive me for my ignorance I think someone else asked where you can get the standoff tubes and i'm actually wondering this myself (they look to me just to be brass fittings) and I did not see any reply with this info if someone could let us know that would be great thanks |
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| Author: | Doc [ Tue Feb 13, 2007 10:24 am ] |
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Yes, the stand-off tubes I use are hardware store brass fitting that I modify to fit. You can also epoxy-in copper or aluminum tubing but I always worry about the epoxy joint coming loose. DD |
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| Author: | ROADRUNNER7169 [ Tue Feb 13, 2007 10:33 am ] |
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COOL THANKS MAN |
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| Author: | Greg Ondayko [ Wed Feb 14, 2007 6:59 am ] |
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Slant zilla, Did you move to california?? I thought You were in the windy city for some reason, and today I noticed it said Chico near your flag in the Avatar. Greg |
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| Author: | slantzilla [ Wed Feb 14, 2007 10:42 am ] |
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Quote: Slant zilla, Did you move to california?? I thought You were in the windy city for some reason, and today I noticed it said Chico near your flag in the Avatar.
What? I see Nebraska. Greg I move a lot since I'm retired.
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| Author: | sandy in BC [ Wed Feb 14, 2007 10:57 am ] |
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Greg: the avatar changes automatically with your location ......GPS you know. |
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| Author: | Greg Ondayko [ Wed Feb 14, 2007 11:31 am ] |
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I was not aware of that - I thought you could only manually change it. Greg |
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| Author: | slantzilla [ Wed Feb 14, 2007 11:33 am ] |
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You only get the GPS avatar when you pay the premium membership fee. You also get the special .org handshake then too.   
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