michael collins > 1983 Ford Bronco > open folder Exhaust

well the manifold crack is getting worse. I decided to get a good set of headers for Homer. these ar...
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Here is the part number (the 502, 572 are part of the 454 family so all the parts interchange). i ha...
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here are the shiny new pipes. these have a coating and are not chrome, but they will look this way ...
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to muffle the beast i wanted to try something i been following along while. these are Car chemistry ...
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here is a side view. these are the 3 Disc. following the directions i have to trim the rear some.
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there is supose to be 1 1/2 - 2 inch space from the collector pipe to the disc. this is where it wil...
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i have to debur the header and sand the discs some but it is a tight fit.
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these will fit and i hope sound real good. this will allow the muffle at the other end to be tossed....
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to install properly i need to get a second set of gaskets. i removed these to sand the discs down al...
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here is the last shot of the headers out of the box and ready for install.
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Now it is time to remove the old exhaust. This is the Motor Cover.
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Here is a brighter shot of the motor cover.
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this is another dark picture of the motor. this is before i started.
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Here is the pass side for the "Before Picture"
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Here is the driver side "Before Picture"
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to keep things in the correct order i put some painters tape with cylinder numbers and where the fro...
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i marked the plug wires as i took them off and set them aside. this will aid in installing them late...
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I marked all wires i unplugged - oil pressure----water temp and anything other i unplugged this was ...
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upon removal i found out why i had such a bad leak on the drivers side. Most of the bolts were loose...
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you can see all the soot from the leaks.
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here is a closer look at the drivers side exhaust manifold. it itself is in good shape. just a blown...
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i tried to get the part number- i guess i did not do so well.
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here is the stock manifold and the new header. the header will flow alot more air and keep the temp ...
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well this is where a good swap goes wrong---real wrong. the new header will not fit without chopping...
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one more view of the motor with no exhaust.
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well i was out of time so after another couple close inspections i decided to clean up the old part ...
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here is the gasket number.
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i cleaned up the exhaust manifold and primed and painted it. I then cleaned the gasket area. this tu...
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here is a different angle. this almost looks new.
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here is how the new gasket will seal up.
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I re-gapped the plugs to 0.45 and cleaned them up. these do not have too many mles on them.
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Here is the driver side manifold re-installed. i tourqued to 35 fp as the book recomended.
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here is a closer look at the reinstalled manifold.
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plugs almost look new. i re-installed them as well
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now time for the real bad side. the pass side. here is is as i started.
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i removed and labled the wires as I did on the other side.
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here is the pass side manifold out. I was lucky as a few of the bolts were loose like the drivers si...
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upon closer look i found out one reason it was so bad on the pass side. 2 of the air plugs were gone...
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here is a closer look. i was so happy no cracks. replace the plugs and go.
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this leads right into the exhaust port. one nasty leak.
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These are female iron pipe threads. i had the correct tap and I chased the threads. i did not want a...
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I went to Home Depot for new brass plugs. I put some anti-size on the threads and installed.
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here are the bolts and plugs from the pass side
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another look at the plugs and bolts.
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after wire wheeling and primer and paint it looks as good as the other side.
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I was able to get the part number on this side.
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here is the bottom side of the manifold
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here was the pass side gasket. it too was in real bad shape.
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here are the bolts after i wire wheeled them clean. now they are reay for prime and paint.
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this is the drivers side doughnut. it was in poor shape. the new one is next to it.
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This is the pass side doughnut. see it is real bad shape.
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here is the new pass side doughnut. after the install i heated the motor for 20 min and re-tourqued ...
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