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  #31 (permalink)  
Old 12-11-2011, 01:10 AM
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This sounds like it might be the valve seals. If it does not smoke when the vacuum is low which is the higher rpms but more when it is idling and has more vacuum it sounds like it may be coming by the guides. If you kill after driving and then re-start and it puffs pretty good it is probably the seals. This would be one of the easier fixes if this is the problem.

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  #32 (permalink)  
Old 12-11-2011, 11:19 AM
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I have the same motor and I plan to start it for the first time in a few days. It came with the same card saying it was run for 20 minutes, and what temp it got up to and I think oil pressure or some other tidbit. And the plugs have a touch of color, and a little but of residue in the exhaust port, so it was running on some hydrocarbon. Also, there was a little rust in the bottom of the water pump where it couldn't fully drain.

I guess they have a o ringed intake they can quickly strap on, and a oil pump drive gear or maybe a full dizzy they slap in. The balancer also had paint mark on it for timing.
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  #33 (permalink)  
Old 12-11-2011, 12:06 PM
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This may not be relevant, but have you checked ignition? My Roush 427SR with MSD had oily plugs and ran really rich when new. Traced down the MSD distributor cap center electrode had broken off! Since then I've replaced the cap for a second time with the same problem. Fuel washdown probably caused some permanent damage, but the engine was off warranty by the time I found out the problem. Oil consumption is now 1200-1500 miles/ qt., compression is 170psi+, and the plugs are dry so I'm living with it.
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  #34 (permalink)  
Old 12-13-2011, 12:44 AM
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Okay guys need some experts oppinions, i have been told by someone that has fitted these 427 to a few cars and has had simular problems,he is in the USA , he said that due to the poor design of the head the drain hole on top of the head is to small and to high and that these engines are fitted with high volume oil pumps and are pumping to much oil to the top of the motor and the drain hole can't cope with the volume and is flooding and this is where the oil is seeping through, he has solved the problem by fitting a standard oil pump but a proper fix would be to remove the head and modify the drain hole, does this make any sence,it would be a easy fix as my mustang has a removable cross member and all i would need to do is remove the rack and drop the sump from under the car so what do you guys think, i aint no expert we can eliminate the intake i went to my mechanics work shop the intake is clean as no oil at all anyware on the intake which would also indicate there is no blow by the intake looks like it has just come out of the box, also the intake ports on the heads are clean as no oil at all and very clean, there is a pool of oil on all the inlet valves not sure of exhaust we did not take the headers off but if my exhaust tips are covered in oil its a safe bet they have oil on them, so my mechanic reckons they have fitted the rings up side down and is sucking the oil up through the cylinders man i'm shattered, ive sent ford racing another email with our latest findings now another nights wait to see what they say.
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  #35 (permalink)  
Old 12-13-2011, 06:02 AM
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The Z heads have been used on 1000's of engines. I have them on the 347 stroker in my 66 Mustang with no problem. I also have the 427w that you have in my cobra, but have not run it enough to know if I have a similar problem. My carb is running so rich right now, that I'm not going anywhere for awhile. From what you describe, I doubt the rings are upside down. It does sound more like a head issue, potentially valve seals, but if so much oil is being pumped into the heads with small drain back holes, I guess that could be the problem also.
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  #36 (permalink)  
Old 12-13-2011, 06:22 AM
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My bet is on the seals....
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  #37 (permalink)  
Old 12-13-2011, 07:13 AM
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This is a well known issue with MSD. Bend the rotor tab up so it makes constant contact with the button. You are arcing now. Once you bend up the cap will last 4ever.







Quote:
Originally Posted by SwiftDB4 View Post
This may not be relevant, but have you checked ignition? My Roush 427SR with MSD had oily plugs and ran really rich when new. Traced down the MSD distributor cap center electrode had broken off! Since then I've replaced the cap for a second time with the same problem. Fuel washdown probably caused some permanent damage, but the engine was off warranty by the time I found out the problem. Oil consumption is now 1200-1500 miles/ qt., compression is 170psi+, and the plugs are dry so I'm living with it.
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  #38 (permalink)  
Old 12-13-2011, 03:56 PM
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Quote:
Originally Posted by blykins View Post
My bet is on the seals....
And looks like you may have won the bet, ford racing now want to know what colour the seals are and what the serial number of the motor is, the seals are orange and my mechanic had a fellow technician in his workshop who apperantly has allready changed seals in a few of these 427's his comments were NOT THOSE BLOODY ORANGE VALVE STEM SEALS AGAIN. ford racing deny there was a faulty batch but thats a load of balony my mechanics mate said there was a bad batch, so great i can get some sleep now and where on to it, thanks for all the help guys.
regards chris.
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  #39 (permalink)  
Old 12-13-2011, 06:06 PM
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I am curious will it make you feel better when someone says "All builders have parts issues at one time or another"? I doubt it but wanted to get a jump on it.
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Old 12-13-2011, 06:36 PM
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Now going out to the garage to check the color of my seals...
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  #41 (permalink)  
Old 12-13-2011, 07:11 PM
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Quote:
Originally Posted by madmaxx View Post
I am curious will it make you feel better when someone says "All builders have parts issues at one time or another"? I doubt it but wanted to get a jump on it.
I don't blame ford racing for the faulty seals but it would have been nice for them to have told me that there was a issue with them'when i rang there tech line 2 weeks ago i asked the question were there any issues with seals on these engines , the reply was no , well bull**** i have every right to be pissed, we pulled off a perfectly sealed intake for nothing, especially seeing that there is history for this problem, i know plenty of mechanics who have been burned due to faulty parts, but the link that was put up to the ffcars forum with a person with simular issues i have been in contact with him and yes he also had the same problem and yes it was the seals this was in aprill of this year, its funny how i orded my 427 5th of may this year so around the same time as his, i'm curious as to how ford racing will handle this seeing i'm so far away, even if they send me new seals i dought i will use them, i will however take a new intake gasket, i have asked them to send me a new one lets see how good they handle this one.
cheers chris
here is a pic before it went in.

And my baby the red vert on the left

Last edited by 68pony; 12-13-2011 at 07:22 PM..
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  #42 (permalink)  
Old 12-13-2011, 07:17 PM
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Please keep us posted, Chris. This will tell a lot about Ford Racing. Sorry you went through this, but it seems a solution is on the horizon. I bought my 427w in October of 2010. The seals are not orange.
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  #43 (permalink)  
Old 12-13-2011, 07:29 PM
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Thanks mark, i will keep you posted on what they do, if you look at the pics i added obove your post the red coup in the middle and the spring time yellow vert on the right have roush engines in them, i wanted to be different and went ford racing.
cheers chris.
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  #44 (permalink)  
Old 12-13-2011, 08:00 PM
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I think you figured it out, most vendors are only reactive. Let the customer take it in the a$$$ and we know our liabilities and will move at a pace within our contractual agreement. That why I suggest Keith Craft, Blykins, they are small enough they cant afford to be reactive, and they actually give a sheet.
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Old 12-14-2011, 01:59 PM
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Default Good to know...

Good info about the Orange Seals. Once I get to my first start, if it burns oil that will be the first thing I check.
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