tubing the block Q, easy/hard?
#2336343
07/13/17 02:09 AM
07/13/17 02:09 AM
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Posts: 36,041 Lincoln Nebraska
RapidRobert
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drilling the pass horizontle gallery (360). massive lifter clearance/leakage. I have the 5/8 long bit & the MP (2) piece copper tubing pieces/peen tool. Is dead on drilling critical? Your thoughts please. Thank you for your time.
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Re: tubing the block Q, easy/hard?
[Re: Porter67]
#2336515
07/13/17 03:09 PM
07/13/17 03:09 PM
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Joined: Jan 2003
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dogdays
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Possibly this?
" massive lifter clearance/leakage"
If we had all the money in the world we'd get the lifter bores sleeved, kill two birds with one stone.
Knowing you, Blazin' Bob, I would say you could do it. I suggest drilling vertically. Chrysler people have been doing this since the Stone Age. I swiped Coronet 500's post from FABO. Here it is:
"Far more time than I thought. Had some +1/64" bigger than hole drills which was not to difficult but caught each time I went through a lifter bore, but with the right speed and the right touch didn't break anything. Then went to a 39/64" drill which is normal length and found being hand held the entry diameter increased after drilling which troubled me for the final 5/8", 12" long drill so I made a jig. A steel tube welded to a plate at 90 degrees bolted to the block to get it going in straight and on center for the first 4-5" then removed it and drilled the remainder with LOTS of spray lube.
The hole from the back was bang on center the whole 10", the one from the front tailed of slightly maybe .050" off of center.
Would I do it again, Yes, knowing what I know now. Any guy who can take a 12" long 5/8" drill into that block one time, one pass is a better man than me!
I did this for the oil improvements but for protection if a pushrod failed won't lose all oil pressure.. Engine is starting of solid flat tappet the possibly solid roller next year."
Another part of the thread suggested using rigid copper tubing. As I have never done this, I don't have a comment.
R.
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Re: tubing the block Q, easy/hard?
[Re: Porter67]
#2336547
07/13/17 04:14 PM
07/13/17 04:14 PM
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Posts: 36,041 Lincoln Nebraska
RapidRobert
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Dog good info which I will read thru. Bird I preoiled with the cam/lifters/pushrods everything together & it gushed way too much.
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Re: tubing the block Q, easy/hard?
[Re: Porter67]
#2336554
07/13/17 04:28 PM
07/13/17 04:28 PM
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RapidRobert
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Yeah bro I would sure like NOT to do it!
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Re: tubing the block Q, easy/hard?
[Re: Sixpak]
#2336660
07/13/17 09:41 PM
07/13/17 09:41 PM
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RapidRobert
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the hardware store has a 5/8 by 17" bit for ~ $20 & that is enough length so I can make some kind of support so it drills straight. thanks for the heads up on the extra fitment needed & I read one time a guy was peening it with the same type MP tool I have & he broke the lifter wall so yes its gonna take some patience (I have that) & after 4 head gasket failures immediately upon fireup on THIS particular eng its gotta be right this time!
live every 24 hour block of time like it's your last day on earth
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Re: tubing the block Q, easy/hard?
[Re: RapidRobert]
#2337295
07/15/17 11:47 AM
07/15/17 11:47 AM
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moparx
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the hardware store has a 5/8 by 17" bit for ~ $20 & that is enough length so I can make some kind of support so it drills straight. thanks for the heads up on the extra fitment needed & I read one time a guy was peening it with the same type MP tool I have & he broke the lifter wall so yes its gonna take some patience (I have that) & after 4 head gasket failures immediately upon fireup on THIS particular eng its gotta be right this time! RR, make sure your fixturing is as ridged as you can make it, because any flex induced by it will be compounded by the length of the drill, which will flex some, even though it is 5/8", and you wouldn't think it would. if it were me, i would drill with a 39/64 [.609] drill, then ream with a 5/8" reamer, which would guarantee you a 5/8" hole top to bottom. it's very likely just using a drill of that size will result in a tapered hole just because of drill flex due to the extended length. but that would increase your tooling cost to approximately $50-60.00.[just a guess]
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Re: tubing the block Q, easy/hard?
[Re: Porter67]
#2337344
07/15/17 02:08 PM
07/15/17 02:08 PM
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Posts: 36,041 Lincoln Nebraska
RapidRobert
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Id think thats not a accurate way to gauge it since your dead heading pressure in alot of areas running the pump without much movement.
Id do some measuring if it were me, you could always bump up the pump pressure as well. Yeah the more I think about it the more I lean toward NOT doing it. I'll likely have to see what my psi is during breakin & noted on the reamer as I cant afford anymore issues with this eng.
live every 24 hour block of time like it's your last day on earth
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