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Restricting cam oiling on street engine? #1732355
01/17/15 06:41 PM
01/17/15 06:41 PM
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Kalispell Mt.
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HotRodDave Offline OP
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Is it OK to drill a smaller hole in the cam bearing and line that one up intead of the big factory hole in order to get a little more to the crank? If yes how small to go?


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Restricting cam oiling on street engine? [Re: HotRodDave] #1732356
01/18/15 12:32 AM
01/18/15 12:32 AM
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Bend,OR USA
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Cab_Burge Offline
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I never seen a need for that, even on all out roller cam race motors oiling the rockers full time through the # 4 cam journal Your choice, your call


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Restricting cam oiling on street engine? [Re: Cab_Burge] #1732357
01/18/15 01:05 AM
01/18/15 01:05 AM
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Kissimmee Fl.
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dusturbd340W5 Offline
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I have ran .063 holes in the cam bearings with no problem, but I was not oiling the rockers though the block


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
Re: Restricting cam oiling on street engine? [Re: dusturbd340W5] #1732358
01/18/15 01:12 AM
01/18/15 01:12 AM
Joined: Jun 2003
Posts: 52,955
Romeo MI
MR_P_BODY Offline
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Quote:

I have ran .063 holes in the cam bearings with no problem, but I was not oiling the rockers though the block




What were you oiling then with that hole

Re: Restricting cam oiling on street engine? [Re: MR_P_BODY] #1732359
01/18/15 07:12 PM
01/18/15 07:12 PM
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Posts: 11,144
Kalispell Mt.
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HotRodDave Offline OP
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Should have clarified it is a magnum so PR oiling. Just the bearing journal it self is going to get oil from that hole, nothing else.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Restricting cam oiling on street engine? [Re: HotRodDave] #1732360
01/19/15 12:19 AM
01/19/15 12:19 AM
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so ca
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mikesiron Offline
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In my round track engines I tape the oil hole from the main bearing to the cam bearings 5/16-18 and put an allen set screw in the center three mains. I drill the set screws with a .090 drill.

Re: Restricting cam oiling on street engine? [Re: mikesiron] #1732361
01/19/15 01:14 AM
01/19/15 01:14 AM
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Posts: 739
Florida
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408Dust Offline
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Florida
.030 on mine no need for all of that oil to the cam bearings. PR also.

Re: Restricting cam oiling on street engine? [Re: 408Dust] #1732362
01/19/15 02:28 AM
01/19/15 02:28 AM
Joined: Jun 2003
Posts: 52,955
Romeo MI
MR_P_BODY Offline
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Quote:

.030 on mine no need for all of that oil to the cam bearings. PR also.




How many rpms are you guys turning that you have to
restrict the oil to the top... did you spin any main
or rod bearings before... I run LA stuff and never
reduced the volume to the top and I never drained the
pan(over size pan) and dont have a problem spinning
bearings .. turning up to and higher than 8200 rpm

Re: Restricting cam oiling on street engine? [Re: HotRodDave] #1732363
01/19/15 02:35 AM
01/19/15 02:35 AM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

Should have clarified it is a magnum so PR oiling. Just the bearing journal it self is going to get oil from that hole, nothing else.


1/16" hole in set screws for all (5) cam journals. It's worthwhile as alot of oil is wasted down there. go to www.moparchat.com then scroll down to & click on "circle track chat" then read thru Sanborns oiling mods that are in a sticky at the top (it'll take ya awhile) for the whole scoop


live every 24 hour block of time like it's your last day on earth
Re: Restricting cam oiling on street engine? [Re: MR_P_BODY] #1732364
01/19/15 04:42 AM
01/19/15 04:42 AM
Joined: Oct 2005
Posts: 739
Florida
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408Dust Offline
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Florida
Quote:

Quote:

.030 on mine no need for all of that oil to the cam bearings. PR also.




How many rpms are you guys turning that you have to
restrict the oil to the top... did you spin any main
or rod bearings before... I run LA stuff and never
reduced the volume to the top and I never drained the
pan(over size pan) and dont have a problem spinning
bearings .. turning up to and higher than 8200 rpm





8300 to 8500 no bearing problems super stock motor.

Re: Restricting cam oiling on street engine? [Re: 408Dust] #1732365
01/19/15 04:39 PM
01/19/15 04:39 PM
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Posts: 11,144
Kalispell Mt.
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HotRodDave Offline OP
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More of a longevity/high miles, thing heavy load on the motor pretty much all the time. I have seen plenty of high miles stock engines spin crank bearings. I figure a tad more oil kept in the pan and a tad more to the crank bearings would help if it is not needed at the cam journal.


I am not causing global warming, I am just trying to hold off a impending Ice Age!









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