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Re: Cam bearing installation
[Re: Hot 340]
#2482648
04/14/18 05:21 PM
04/14/18 05:21 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I dont.. if I want to reduce the oiling I do it at the block(where the heads bolt on OR where the rocker shaft bolts on) this is on a SB
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Re: Cam bearing installation
[Re: MR_P_BODY]
#2482650
04/14/18 05:27 PM
04/14/18 05:27 PM
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Joined: Dec 2006
Posts: 3,395 Pa
Hot 340
OP
master
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OP
master
Joined: Dec 2006
Posts: 3,395
Pa
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I dont.. if I want to reduce the oiling I do it at the block(where the heads bolt on OR where the rocker shaft bolts on) this is on a SB It already has the valvetrain oil restricted through a separate passage (aftermarket block)..i was considering clocking and therefore restricting oil to the journal for less bleeding there at the cam..
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Re: Cam bearing installation
[Re: Hot 340]
#2482661
04/14/18 05:58 PM
04/14/18 05:58 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Do any of you guys clock the bearing so that the oil feed to the journals is partly blocked to restrict oil? If so, how much? A 1/16" feed to the cam journals that ain't feeding anything upstairs is plenty (1/8" in the (2) that (normally) feed the heads is adequate). If starting from scratch you could drill/tap the vertical passages under the mains then install a setscrew drilled to .0625". In your case just guestimate how much of the hole you want covered/uncovered. Its worthwhile to do as cam bearings leak alot of oil & especially you are in a position now to correct it. every bit helps.
live every 24 hour block of time like it's your last day on earth
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Re: Cam bearing installation
[Re: Hot 340]
#2482674
04/14/18 06:24 PM
04/14/18 06:24 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I dont.. if I want to reduce the oiling I do it at the block(where the heads bolt on OR where the rocker shaft bolts on) this is on a SB It already has the valvetrain oil restricted through a separate passage (aftermarket block)..i was considering clocking and therefore restricting oil to the journal for less bleeding there at the cam.. If its restricted now whats the oil pressure now.. I like to restrict the oil at the rocker oil holes because they are easy to change if I want more or less and I dont have to tear the engine down
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Re: Cam bearing installation
[Re: MR_P_BODY]
#2482720
04/14/18 08:39 PM
04/14/18 08:39 PM
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Joined: Dec 2006
Posts: 3,395 Pa
Hot 340
OP
master
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OP
master
Joined: Dec 2006
Posts: 3,395
Pa
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I dont.. if I want to reduce the oiling I do it at the block(where the heads bolt on OR where the rocker shaft bolts on) this is on a SB It already has the valvetrain oil restricted through a separate passage (aftermarket block)..i was considering clocking and therefore restricting oil to the journal for less bleeding there at the cam.. If its restricted now whats the oil pressure now.. I like to restrict the oil at the rocker oil holes because they are easy to change if I want more or less and I dont have to tear the engine down No oil pressure yet as its an unused, unassembled block. The valvetrain restrictors are .040.
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Re: Cam bearing installation
[Re: 4406bbl]
#2482737
04/14/18 09:22 PM
04/14/18 09:22 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Just drill a hole in the cam bearing the size you want and clock it there. Ding ding ding I do believe we have a winna.
live every 24 hour block of time like it's your last day on earth
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Re: Cam bearing installation
[Re: RapidRobert]
#2482797
04/14/18 11:38 PM
04/14/18 11:38 PM
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Joined: Dec 2006
Posts: 3,395 Pa
Hot 340
OP
master
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OP
master
Joined: Dec 2006
Posts: 3,395
Pa
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Just drill a hole in the cam bearing the size you want and clock it there. Ding ding ding I do believe we have a winna. How big of a hole you guys using? Im not running very much spring pressure as Im using a flat tappet.
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Re: Cam bearing installation
[Re: Hot 340]
#2482813
04/15/18 12:04 AM
04/15/18 12:04 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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I'm full time feeding my heads with 1/16" which MAY (not sure yet) be slightly too much
live every 24 hour block of time like it's your last day on earth
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Re: Cam bearing installation
[Re: Hot 340]
#2482820
04/15/18 12:16 AM
04/15/18 12:16 AM
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Joined: Aug 2003
Posts: 43,190 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,190
Bend,OR USA
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Last edited by Cab_Burge; 04/15/18 12:17 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Cam bearing installation
[Re: Hot 340]
#2484041
04/17/18 04:16 AM
04/17/18 04:16 AM
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Joined: Mar 2008
Posts: 883 Affton MO
qwkmopardan
super stock
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super stock
Joined: Mar 2008
Posts: 883
Affton MO
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Just drill a hole in the cam bearing the size you want and clock it there. Ding ding ding I do believe we have a winna. How big of a hole you guys using? Im not running very much spring pressure as Im using a flat tappet. I have oiled both cyl. heads rockers with one .040 hole. On a street car that sees a lot of miles. But generally one .040 restrictor to each head. And the cam bearings I usually drill a .093 hole and line it up to hole in the block to restrict oil to the cam journal.
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