When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a 1981 F350 dually. The original engine was replaced with a 460 engine, which I believe is a 1984 by some of the paint markings on the valve covers. I do not know the original vehicle for the 460 engine. The first picture is engine identification from the valve cover label. The second picture shows the broken water outlet switch/valve. Can someone help me identify what this broken part is and its part number?
First do you see any vacuum lines in that area not hooked to anything and maybe have the other half of the switch?
I am guessing no.
Do you need this for smog check like in CA?
If no also then don't worry about it.
If you need it you are going to need the rest of the smog things also and that may be hard to get because you need calibration numbers for the truck not the car motor.
Then where to fine all the parts that are good?
Then you need the vacuum hose routing, do you have that on the radiator support for the 460 motor?
See not as easy as to find just that temperature switch.
Dave - - - -
Did Ford put the 460 in anything but a heavy truck in 1984? I can't think of anything else they put it in. Even cop cars didn't have it did they?
If no one can think I what else the 460 could have been in, then it's a shoe in that your 460 came from a 1984 f250 or f350, and had Ca emissions on it.
The attached picture is the emission vacuum plumbing from the 460 engine valve cover label. Most of the smog plumbing is missing. There is an EGR valve and a two position vacuum valve (ACA) on the intake manifold right below the water outlet. The engine has a Edelbrock carburetor # 1411 8289. The vacuum line from the distributor is run straight to the carburetor and not through the ( in think broken ) three position ACA to manifold vacuum. The carburetor has an electric choke. I do not have any of the other valves or switches shown in the diagram and do not plan on installing them. I was just thinking of correcting the path for the distributor vacuum advance. It runs rough and rich when cold and basically OK at higher rpm.
The attached picture is the emission vacuum plumbing from the 460 engine valve cover label. Most of the smog plumbing is missing. There is an EGR valve and a two position vacuum valve (ACA) on the intake manifold right below the water outlet. The engine has a Edelbrock carburetor # 1411 8289. The vacuum line from the distributor is run straight to the carburetor and not through the ( in think broken ) three position ACA to manifold vacuum. The carburetor has an electric choke. I do not have any of the other valves or switches shown in the diagram and do not plan on installing them. I was just thinking of correcting the path for the distributor vacuum advance. It runs rough and rich when cold and basically OK at higher rpm.
Emission Vacuum Plumbing
They are VCV (Vacuum Control Valve) not ACA
The Dist is fed manfold vac on a cold engine and then goes through a VRest (Vacuum Restrictor) on a hot engine on a cold engine it is fed directly from the Intake manifold. You should feed the dist on your truck directly from the intake manifold vacuum if you have the original dist. Even better if you have the Vacuum Restrictor place it in line and feed it directly from intake vacuum.
The other VCV is for the EGR it disables the EGR on a cold engine and enables it once the engine heats up. Unless your Edlebrock carb has an emissions vacuum port. (not just the dist vacuum port) there is nothing you can do about that.
That engine must have come from a heavy truck. That is a very simple diagram for a Ca model. Back in the early days they did not require so much emissions if you were over a certain GVWR.
I believe it has the original distributor. So I should replace the broken three position VCV and with a vacuum restrictor hook up to the manifold vacuum port as shown in the diagram. Are there part numbers and suggested source for the VCV and V Restrictor.
I believe it has the original distributor. So I should replace the broken three position VCV and with a vacuum restrictor hook up to the manifold vacuum port as shown in the diagram. Are there part numbers and suggested source for the VCV and V Restrictor.
They are not required unless you have to install them for emissions compliance
Idaho and the age of the truck, there are no emission requirements and I don't plan on installing any unless absolutely necessary. Is it best to attach the distributor vacuum advance directly to the intake manifold or directly to a vacuum port on the carburetor (Edelbrock 1411)?
Idaho and the age of the truck, there are no emission requirements and I don't plan on installing any unless absolutely necessary. Is it best to attach the distributor vacuum advance directly to the intake manifold or directly to a vacuum port on the carburetor (Edelbrock 1411)?
Directly to the intake manifold or the manifold vacuum port on the carb either or. You will have to adjust the idle down once you hook it to the manifold vacuum port. Be sure you are using the factory 8° of ignition timing if using manifold vac for the dist. Dist ignition advance is checked with the dist disconnected from it;s vac source and the source capped.
Did Ford put the 460 in anything but a heavy truck in 1984? I can't think of anything else they put it in. Even cop cars didn't have it did they? Nope.
If no one can think I what else the 460 could have been in, then it's a shoe in that your 460 came from a 1984 f250 or f350, and had Ca emissions on it.
No 460's: in F100's after 1976, in Passenger Cars after 1978, in F150's after 1979 (1978 CA), in 1980/82 F250/350's. 460 reintroduced in 1983 F250/350.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
