Author Topic: still smoking like a freight train  (Read 16343 times)

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unclewill

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Re: still smoking like a freight train
« Reply #15 on: May 21, 2017, 03:10:47 PM »
PCV is not all about emissions.  Having a stream of fresh, filtered air flowing through your crankcase keeps blowby and windage from contaminating your oil and will ultimately make the engine last longer.  I've also noticed that cars running breathers tend to smell like fumes inside when driving and the smoke from breathers can make the engine bay filthy.  Now that you have found the problem, sort out the PCV situation with new components, the parts are cheap and the system is simple.
1969 Ford Cobra, 482 side oiler, BBM aluminum heads, FiTech EFI, Edelbrock 7105, Comp 292H, CR 4 speed, 9", 3.50

fryedaddy

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Re: still smoking like a freight train
« Reply #16 on: May 21, 2017, 03:21:02 PM »
its a hotrod,i have allways smelled some kink of fumes.no ac,i just roll down the window.i put new eld valve covers on too,and my old pcv would not fit the new covers so i bought one that would fit but it may not be right for the engine
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

chris401

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Re: still smoking like a freight train
« Reply #17 on: May 21, 2017, 03:22:34 PM »
PCV is not all about emissions.  Having a stream of fresh, filtered air flowing through your crankcase keeps blowby and windage from contaminating your oil and will ultimately make the engine last longer.  I've also noticed that cars running breathers tend to smell like fumes inside when driving and the smoke from breathers can make the engine bay filthy.  Now that you have found the problem, sort out the PCV situation with new components, the parts are cheap and the system is simple.
You are correct. However it is a small pixle on the big picture. The problem is; Does any PCV look better than Offenhauser breathers on a FE powered Model T?

blykins

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Re: still smoking like a freight train
« Reply #18 on: May 21, 2017, 03:24:04 PM »
Quite possible the pcv valve is just completely wrong, but drive it without it for a nice long drive and see if the smoke clears up.  If not, you got something else going on. If so, then you can figure out what was wrong with the pcv or leave it off.
Brent Lykins
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Yellow Truck

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Re: still smoking like a freight train
« Reply #19 on: May 21, 2017, 03:24:40 PM »
Key things I've read -
  • BBM heads with no oil restrictors
  • Oil is pooling on the head
  • You were running a PCV, and had oil pooling in the intake runners
  • Rocker bolts punched through the head
  • You have disconnected the PCV

A few questions -
  • Assuming the rocker bolts punched into the intake port or the water jacket (I haven't had mine apart in a while so am not sure where the rocker stand bolts sit relative to the head internals) - have you made sure no metal made it into the cylinder? I note you don't mention having the heads off since you found out you had put the bolts through
  • Are you running oiling pushrods?
  • Where in the intake is the oil pooling - is it in the area of the PCV connection or is it near the port?

I am running BBM heads with restrictors in the oil passage and oiling pushrods. My heads get a LOT of oil - with a cordless drill turning the oil pump drive shaft I was able to empty the pan and fill the heads in under a minute. I regret having gone ahead with the rest of the assembly without addressing it then. I'm planning on dismounting the rockers and blocking the passage and relying on just the pushrods. We both need to get the oil getting into the heads under control.

My PCV hose to the back of the carb was wet with oil, but the carb side was clean when I took it off yesterday, but I'm very concerned about that much oil making it into the intake. For the time being I've closed off the vacuum port on the intake and will try to stuff a breather into the second valve cover.

It might be overreacting, but I'd be pulling the heads and inspecting for any loose metal coming off the bottoms of the rocker bolts, and cleaning up any rough metal.

It sucks, but you have to fix any problem before it becomes a disaster, then you can move on.
1969 F100 4WD (It ain't yellow anymore)
445 with BBM heads, Prison Break stroker kit, hydrualic roller cam, T&D rockers, Street Dominator Intake with QFT SS 830.

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fryedaddy

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Re: still smoking like a freight train
« Reply #20 on: May 21, 2017, 03:33:12 PM »
my pushrods dont have oil holes.its raining now i will have to go for a long drive later,i know that the rockers are slinging alot of oil because oil drips from the caps of the valve covers when i take them off and the pcv had some drips on it oil is puddling in the head ports not the intake
« Last Edit: May 21, 2017, 03:35:23 PM by fryedaddy »
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

blykins

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Re: still smoking like a freight train
« Reply #21 on: May 21, 2017, 03:36:06 PM »
What rockers are you using again?

Even factory rockers will shoot oil straight up towards the roof of the valve cover.

If there is no oil in the pcv hose nor in the plenum of the intake, chances are it's not a pcv issue.  You have to look upstream of where the oil is located. 
« Last Edit: May 21, 2017, 03:37:41 PM by blykins »
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
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fryedaddy

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Re: still smoking like a freight train
« Reply #22 on: May 21, 2017, 03:38:05 PM »
i have stock adj on it now,my harland sharps rocker end supports hit my head bolts and i took them off
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

fryedaddy

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Re: still smoking like a freight train
« Reply #23 on: May 21, 2017, 03:39:45 PM »
the oil was puddled on top of the intake valves
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

blykins

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Re: still smoking like a freight train
« Reply #24 on: May 21, 2017, 03:44:49 PM »
See if you can see oil running down the stems.
Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
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fryedaddy

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Re: still smoking like a freight train
« Reply #25 on: May 21, 2017, 03:47:50 PM »
when i had the intake off it didnt look like it was comming down the stems,but im not sure
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

blykins

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Re: still smoking like a freight train
« Reply #26 on: May 21, 2017, 03:57:57 PM »
I can show you a clear valve cover video of unrestricted factory rockers with a standard volume pump and no drip tins or tricks.  At WOT on the dyno at 6000 rpm, the oil doesn't even get up to the spring locators.

Brent Lykins
Lykins Motorsports
Custom FE Street, Drag Race, Road Race, and Pulling Truck Engines
Custom Roller & Flat Tappet Camshafts
www.lykinsmotorsports.com
brent@lykinsmotorsports.com
www.customfordcams.com
502-759-1431
Instagram:  brentlykinsmotorsports
YouTube:  Lykins Motorsports

fryedaddy

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Re: still smoking like a freight train
« Reply #27 on: May 21, 2017, 04:23:10 PM »
i have seen that video.i took my covers off a month ago with my cj heads and run it hard and all it did was a drop or two of oil was running down the shafts to the tins with no splash.i can take a cover off now and it will fly all over the fender in a second or two
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

chris401

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Re: still smoking like a freight train
« Reply #28 on: May 21, 2017, 04:35:32 PM »
I can show you a clear valve cover video of unrestricted factory rockers with a standard volume pump and no drip tins or tricks.  At WOT on the dyno at 6000 rpm, the oil doesn't even get up to the spring locators.
Did you build it with head studs?

fryedaddy

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Re: still smoking like a freight train
« Reply #29 on: May 21, 2017, 05:02:33 PM »
when it first started smoking after the head intake swap i noticed my rocker endstands were hitting my arp head bolts,holding them up off the head surface. the heads on these bolts stick up higher than stock bolts.so i thought ah ha.but i put my stock rockers back on and it still smoked.
1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new