Re: Restricting bb rocker shaft oil (internal feed)?
[Re: BradH]
#1134779
12/15/11 07:05 PM
12/15/11 07:05 PM
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Joined: Nov 2003
Posts: 5,160 Texas
dannysbee
master
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master
Joined: Nov 2003
Posts: 5,160
Texas
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Engine builder I know does it with the cam bearing. Makes new hole in bearing the size he wants to restrict.
Getting old just means you were smarter than some and luckier than others.
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: MR_P_BODY]
#1134781
12/15/11 07:37 PM
12/15/11 07:37 PM
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Joined: Mar 2007
Posts: 3,300 Northern Indiana
Dunnuck Racing
master
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master
Joined: Mar 2007
Posts: 3,300
Northern Indiana
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Quote:
Since you are unsure if you will be reducing the flow I would drill and tap the point just below where the rocker shaft mounts, that would be the easiest point to change the restriction (not having to pull the heads to change it if it was in the block surface)
I agree with Mr.P on the where to put it. But I don't believe restricting the oil to the top end is a good idea for 99% of us. Heat is a big killer to valve springs and I would rather have all the oil I can get up there to keep them cool. I would rather work on better ways to keep oil returning fast and off of the rotating assembly upon return than restict the oiling. Keith
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: dOoC]
#1134784
12/15/11 08:08 PM
12/15/11 08:08 PM
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Joined: Nov 2003
Posts: 5,160 Texas
dannysbee
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master
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Posts: 5,160
Texas
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Brad did you see the mod that TrendZ posted. I really did like his idea. He positioned the cam bearing as to cut all the oil feed off of the cam bearing which would redirect that oil to the rods and mains. Then he drills a hole into the head feed galleys, both sides, then directly into the main oil galleys. The oil restriction would be how big a hole you drill into the main galleys. Then drill and tap your head feed galleys for plugs. Constant feed oil to heads straight off the main galley.
Getting old just means you were smarter than some and luckier than others.
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: Bigfury]
#1134786
12/15/11 08:36 PM
12/15/11 08:36 PM
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Joined: Jul 2008
Posts: 30,451 Florida STAYcation
dOoC
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,451
Florida STAYcation
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Quote:
What kind of ideas is there for returning more oil away from the crank???? Like some kind of drain from the rear of the head to the pan?
JUST what I said at 5:51 ...
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: Cab_Burge]
#1134789
12/16/11 11:33 AM
12/16/11 11:33 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
OP
Taking time off to work on my car
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OP
Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
I like to oil the rockers full time first and then use a .040 restrictor in the oil feed to the rockers, head or block, both work
Yeah, something like that. I've been getting my #4 cam journal's grooved for full-time oiling, but was thinking it might be helpful to be able to control the passage size actually feeding the rocker shafts.
Something on the "top half", rather than requiring the heads to be pulled to change, would certainly be better.
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: BradH]
#1134791
12/16/11 01:16 PM
12/16/11 01:16 PM
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Joined: Jan 2003
Posts: 8,028 Tulsa OK
Bad340fish
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master
Joined: Jan 2003
Posts: 8,028
Tulsa OK
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Cab, are you using that .040 restriction on your street motors? I believe my small block is filling the valve covers on WOT runs and leaking out the breathers. I have erson needle bearing rockers and a grooved cam so it oils ALOT all the time. I have been considering restricting the oil some to see if it helps the bleeding breathers, it has good baffles already.
I was considering external drains but my block is tubed so the lifters oil off of the drain back.
68 Barracuda Formula S 340
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Re: Restricting bb rocker shaft oil (internal feed)?
[Re: Bad340fish]
#1134792
12/16/11 03:18 PM
12/16/11 03:18 PM
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Joined: Aug 2003
Posts: 43,228 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,228
Bend,OR USA
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I do the full time oiling on any motor that has a solid roller cam I do it for additional oiling and cooling to the valve springs I have seen several BB Mopars really flood the top end without retricting the feed
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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