Intake manifold?
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Intake manifold?
I've got a problem with my intake. In swapping to a 4 barrel, I had to put on a different intake. The one that I've put on twice now, with a smoking problem in the end, I find is a little different. There are the four intake ports on each side, and then one more port, on each side. These don't match up. What is that port and how does it work. Could oil be getting into the intake through these ports? Is that deffinant, or just possible? I feel like a idiot for not noticing this before I put the whole thing together the fist time, and still putting it together the second time thinking it wouldn't matter.
Post Fiend
Joined: Feb 2000
Posts: 5,130
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From: Brea CA
Intake manifold?
The one more port is the exhaust crossover. It’s an exhaust port that goes through the bottom of the intake and warms up the manifold. If these don’t match up then you are blowing hot exhaust gasses into the lifter valley, not a good thing. No wonder you were having blow-by, but in a different way. I’m kind of lost here, what engine do you have and what are you doing to it?
Barry
Barry
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Intake manifold?
I have 360 cu in, in a 73 F250 4x4. I'm putting a 4 barrel on it. So getting blow by? Would you be kind enough to explain how that would get oil into my cylinders. Should getting the correct intake manifold solve the whole problem?
Post Fiend
Joined: Feb 2000
Posts: 5,130
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From: Brea CA
Intake manifold?
Sorry, I meant blow-by by the symptoms, smoke coming out of the oil filler cap. In your case it’s the inside of the engine being pressurized by the exhaust leak pumping in. What kind of manifold do you have that the crossover doesn’t line up, all FE intakes have them in the correct place. Only the FT manifolds have them in a different location.
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Intake manifold?
The oil smoke not only comes out of the filler cap, but heavy out the tail pipe when under load. Nothing smokes at an idle. This intake I bought from some guy. He said it was for a 360 truck motor. I had heard they were all the same. I don't know where it really came from I guess. Do you think it would cause heavy smoke from the exhast under power, but not at idle. Do you think a new and correct manifold would solve my problem?
Oh, thank you for the support. I'm going a bit crazy, and most people at parts stores I don't think I should be trusting they really know what they're talking about. Know what I mean?
Oh, thank you for the support. I'm going a bit crazy, and most people at parts stores I don't think I should be trusting they really know what they're talking about. Know what I mean?
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Intake manifold?
Can you take a photo of the intake for us and post it somewhere.
I'm curious to see what this looks like.
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
I'm curious to see what this looks like.
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
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Intake manifold?
well, by the time I took the photo, had the film developed and put it on the site, it would be... I don't have a digital camera, sorry. I can say, the exhaust port is in the center, and it is square. The ones on the original intake are rectangular, between 1 & 2 and 7 & 8.
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Post Fiend
Joined: Feb 2000
Posts: 5,130
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From: Brea CA
Intake manifold?
Yea I hear ‘ya. These engines are older than most people at the parts store are old. BTW, no 360’s ever came with a 4V, the 361 did but it’s a FT truck engine. 390 trucks got a 4V beginning in ’74. Is there a number on top of the manifold anywhere? It’s hard to picture what you have. Don’t know why you don’t have any problems at idle, doesn’t make sense. There should be six ports on each side total. Four are the intakes, one is the crossover and the small one up front is the water. The exhaust port is just forward of the #2 intake on the passenger side and just aft of the #7 intake on the driver’s side. Where is the exhaust crossover ports on the manifold in relation to the ones on the heads?
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Intake manifold?
>well, by the time I took the photo, had the film developed
>and put it on the site, it would be... I don't have a
>digital camera, sorry. I can say, the exhaust port is in the
>center, and it is square. The ones on the original intake
>are rectangular, between 1 & 2 and 7 & 8.
I thought of that after.
I did one :
https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1777&.jpg
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
>and put it on the site, it would be... I don't have a
>digital camera, sorry. I can say, the exhaust port is in the
>center, and it is square. The ones on the original intake
>are rectangular, between 1 & 2 and 7 & 8.
I thought of that after.
I did one :
https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1777&.jpg
Dennis https://www.ford-trucks.com/user_gallery/sizeimage.php?&photoid=1733&.jpg
Please Don't Ask Me Any Tough Questions As:
"I'm Saving My Memory For When I Develop Alzheimer's"
78 F-150 429CJ,Silver
w/Explorer Pkge.
641/2-Mustang 260,Pre-World's Fair Car.
64-Fairlane500 S/C waiting for a 390-4spd.
68-Mustang 289-Sunlit Gold 80,892Mi
78-Buick LeSabre 403 4V
84 Volvo DL Wagon
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Intake manifold?
Yea, I’ve got a smoking problem too but I’m trying to cut back. 
Ok, your engine smoking could be from the intake not sealing up on the bottom side, not uncommon with the FE’s. I would not worry about it until you get the correct fitting manifold on there first.
Ok, your engine smoking could be from the intake not sealing up on the bottom side, not uncommon with the FE’s. I would not worry about it until you get the correct fitting manifold on there first.
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Intake manifold?
Okay, so a bought an edelbrock performer intake, the correct intake for my motor. The smoke is gone! Ye Haw! But now she just don't run right. I've had to increase the timing to about 15 btc just to get it to have power at take off. At the correct timing it just bogs and wants to die. So it seemed to run fairly well set high. It has good take of power, but has no power at speed over say about 40. It will accelerate, but not fast. It just bogs. Then the other day going up a steep hill at 55 mph she back fired a couple of times and I had to let up off the gas, then she was back to normal after the hill. I turned down the timing a little bit, but it happend again the next time I went up that hill. All my vacuum lines are new and don't leak. Vacuum advance works.
Got any ideas?
Got any ideas?
Junior User
Joined: Apr 2002
Posts: 62
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From: Screven, Georgia U.S.A.
Intake manifold?
Get it on #1 t.d.c. andmake sure the rotor in the dist. cap is right.What carb? Make sure vac.advance is on ported vacuum.Check real close for a vacuum leak around the manifold.