1984 F150 Help!
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Joined: Nov 2008
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1984 F150 Help!
Hey Guys I need a little Advice here. Im going to put headers on my f150 and doing away with the old style exhaust manifold, I have the old cast Iron type and on the end of the drivers side it has the exhaust manifold heat riser. I will number the questions in hopes to get answers on either.1. Can I do away with the Heat Riser as I have a new carb that has an electric choke on it?2. Also when I put my new exhaust on can I do away with the resonator which is at right under the right side of the cab? I will reuse the converter which is new and will run a flow master. All pipes are gonna be new and will end being duals at the rear.3. Also I have a question as far as adding a chrome water inlet. I have the new water inlet housing that is chrome, the problem is that the stock has a screw in type Valve on top with 2 color looking lines like vacum lines. I know it has something to do with the transfer of heat I guess. Can I do away with that Valve altogether and just add the chrome water neck with hurting anything.Thanx Alot on the help, Also do you recommend Oxy And acet or do you think mig would be the way to weld the new exhaust?
Fleet Mechanic
Joined: Apr 2007
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From: patricia ab canada
1 yes
2 yes
3 i think that valve is for your vacume advance.it's a temp sensing valve.you have no vacume untill the colant reaches a certain temp.trace where the lines come from and ehere they go, and if it go'es to the vacume advance, bypass it.
mig all the way it's easier
2 yes
3 i think that valve is for your vacume advance.it's a temp sensing valve.you have no vacume untill the colant reaches a certain temp.trace where the lines come from and ehere they go, and if it go'es to the vacume advance, bypass it.
mig all the way it's easier
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Joined: Jan 2001
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From: Virginia
Trace the lines and see were they go. There are several vacuum devices that are controlled by a temperature vacuum valve.
You will have to get rid of the heat riser if you want the headers. But that will be one more thing that makes the engine a little bit more cold natured. When the engine is completely stock, and everything is working correctly, you can start the engine on a cold morning and just drive away, with no hiccups, or hesitation. First step down the road to a cold natured engine will be the heat riser. Next step will be a chrome aircleaner. Next step will be a cooler thermostat. Last step will be one of those air gap intake manifolds. When you are done, the truck is really finicky in cold damp weather till it warms up.
You will have to get rid of the heat riser if you want the headers. But that will be one more thing that makes the engine a little bit more cold natured. When the engine is completely stock, and everything is working correctly, you can start the engine on a cold morning and just drive away, with no hiccups, or hesitation. First step down the road to a cold natured engine will be the heat riser. Next step will be a chrome aircleaner. Next step will be a cooler thermostat. Last step will be one of those air gap intake manifolds. When you are done, the truck is really finicky in cold damp weather till it warms up.
