I think he is asking how deep the groove is, not the length of the groove........
| Slant Six Forum https://www.slantsix.org/forum/ |
|
| Grooving lifter bores https://www.slantsix.org/forum/viewtopic.php?t=21616 |
Page 1 of 2 |
| Author: | valiantboy_66 [ Thu Jan 25, 2007 7:45 pm ] |
| Post subject: | Grooving lifter bores |
I am running the K-V1 Engle cam. I have completed all the block prep in Doc.'s article, including the lifter valley standoff tubes. Would it be a good idea to groove the lifter bores for extra oil to the cam lobes. I am trying to prevent all measures of engine failure, especially a big flat cam. |
|
| Author: | Doctor Dodge [ Thu Jan 25, 2007 8:19 pm ] |
| Post subject: | |
I always groove and hone the lifter bores in HP SL6 engines. With the stand-off tubes, the lifters will be submerged in oil so you may as well drain it out, all over the cam to lifter contact area. DD |
|
| Author: | Bren67Cuda904 [ Thu Jan 25, 2007 8:28 pm ] |
| Post subject: | |
where is this article? |
|
| Author: | valiantboy_66 [ Thu Jan 25, 2007 10:07 pm ] |
| Post subject: | |
I made up a tool using an old lifter and a brake lathe bit it works great, grooved it about .0010. What depth do you recommend? |
|
| Author: | slantvaliant [ Fri Jan 26, 2007 6:19 am ] |
| Post subject: | |
Quote: where is this artical?
Right here: Playing with Blocks
|
|
| Author: | dakight [ Fri Jan 26, 2007 7:30 am ] |
| Post subject: | |
I've read this article a couple of times and it looks like it's very thorough. One thing is not clear to me though... Where does one obtain the pipe standoffs in the oil galley? Is there something specific I should look for. How tall are they when fully inserted? |
|
| Author: | Greg Ondayko [ Fri Jan 26, 2007 3:53 pm ] |
| Post subject: | |
I printed the Playing with Blocks article and took it o the Machine shop when I got the block bored and finished. He Drilled he holes and then Machined / Installed the stand off tubes for me. Experinced machinists / Machine shops Are the Best. Greg |
|
| Author: | valiantboy_66 [ Sat Jan 27, 2007 3:42 pm ] |
| Post subject: | |
Doug how deep do you groove the bores? I will be at the machine shop next week. Also I got my 6 bolt oil pump from Egge I am going to pull it apart and message it a little. I was wondering how I can get one of those hardened gears from you? Thanks. |
|
| Author: | emsvitil [ Sat Jan 27, 2007 8:22 pm ] |
| Post subject: | |
I think he is asking how deep the groove is, not the length of the groove........
|
|
| Author: | Doctor Dodge [ Sun Jan 28, 2007 9:24 am ] |
| Post subject: | |
  ... the ones I do are somewhat small, appx. .020 x .010That's about all I get on a single pass with the tool I have. The key is to deburr and hone the bores afterward so they are not tight. That is where the time is spent. DD |
|
| Author: | panic [ Sun Jan 28, 2007 10:43 am ] |
| Post subject: | |
I'm having trouble visualizing this. There appear to be no other drains in the area surrounding the lifter bores, yes? So the stand-off tube only has to be tall enough that the highest edge of the lifter bore is always submerged regardless of engine rocking, etc. since this will insure that oil can follow the entire lifter circumference and keep the body wet all around? But also provides more drainage if the level gets too high. Notice any oil pressure loss with those grooves? |
|
| Author: | james longhurst [ Sun Jan 28, 2007 11:27 am ] |
| Post subject: | |
Quote:
Notice any oil pressure loss with those grooves?
I've never done these modifications personally, but I don't think there would be any oil pressure loss since the lifters aren't fed by an oil galley. I think that's one of the reasons for the mod. It's been said that a major rpm-limiting factor is the inadequate oiling of the cam lobes. The standoffs and grooves are meant to remedy this. -James |
|
| Author: | panic [ Sun Jan 28, 2007 1:42 pm ] |
| Post subject: | |
Oopss - thanks, brain fade, thinking of my LA motor! |
|
| Author: | Greg Ondayko [ Sun Jan 28, 2007 3:59 pm ] |
| Post subject: | |
Doc, or any one else who has Grooved The Lifter Bores: Does anyone have a pic of this to post? 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" A picture would help me to understand the Discussion here. Greg |
|
| Author: | Bren67Cuda904 [ Sun Jan 28, 2007 5:35 pm ] |
| Post subject: | |
Is this something like the tool used to cut the groves in the lifter bores? http://news.thomasnet.com/images/large/029/29587.jpg |
|
| Page 1 of 2 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|
