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Camshaft install

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Old Feb 20, 2011 | 01:43 PM
  #1  
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clhart426
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From: toledo oh
Camshaft install

Wondering how big of a deal it is to put a different cam in my 400. if someone could maybe do a walk through on the steps that need to be done? Thanks
 
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Old Feb 20, 2011 | 05:03 PM
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Ziegelsteinfaust
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From: Chino Hills
While not the hardest thing in the world you have to change you springs too, and the set-up is annoying. Or the bothering to change the cam will not be worth it.

First drain your coolant, remove your all your accesories, intake manifold, waterpump, and front cover. Make sure you label your bolts. Ford used different lengths in a few places.

Remove the 3 bolts holding the cam timing chain on, and use a puller to remove the crank gear too. Loosen up the shaft rockers and store your pushrods in a zip-lock bag. Spin cam around to pop up the lifters, and recyle them. Now carefully and slowly pull the cam out. Being carefull not to mar or knock out your cam bearings.

Remove your heads or you can do the spring set-up on your heads while they are installed. I would do it on a desk. It is never fun leaning over for a few hours.

Slide in slowly and carefully back into the motor. Insert bad annology here. Insert new lifters into motor after they have soaked for a couple of hours in low weight oil. Set rocker stands on heads, and insert the push rods. Tighten down to factory specs.

Put everything back on the motor that was there before, and change the oil with a cam break in lube too.

Fire up the motor set the timing and let it run for 30 minutes.

Change oil, and let it ride for 1000 miles.

Then change the oil at normal intervals.
 
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Old Feb 20, 2011 | 06:28 PM
  #3  
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DO NOT DO THIS JOB WITHOUT USING A ZINC OIL ADDITIVE FOR BREAK-IN
 
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Old Feb 20, 2011 | 07:48 PM
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Originally Posted by Ziegelsteinfaust
While not the hardest thing in the world you have to change you springs too, and the set-up is annoying. Or the bothering to change the cam will not be worth it.

First drain your coolant, remove your all your accesories, intake manifold, waterpump, and front cover. Make sure you label your bolts. Ford used different lengths in a few places.

Remove the 3 bolts holding the cam timing chain on, and use a puller to remove the crank gear too. Loosen up the shaft rockers and store your pushrods in a zip-lock bag. Spin cam around to pop up the lifters, and recyle them. Now carefully and slowly pull the cam out. Being carefull not to mar or knock out your cam bearings.

Remove your heads or you can do the spring set-up on your heads while they are installed. I would do it on a desk. It is never fun leaning over for a few hours.

Slide in slowly and carefully back into the motor. Insert bad annology here. Insert new lifters into motor after they have soaked for a couple of hours in low weight oil. Set rocker stands on heads, and insert the push rods. Tighten down to factory specs.

Put everything back on the motor that was there before, and change the oil with a cam break in lube too.

Fire up the motor set the timing and let it run for 30 minutes.

Change oil, and let it ride for 1000 miles.

Then change the oil at normal intervals.
Sorry, but you forgot a VITAL part of the install. It is critical when changing a cam, that on the initial start you do not let the engine idle!! Isky says to quickly bring the rpm's up to 2k, and let it run there for 20 minutes. Idling the engine could ruin that cam.

Ck with the cam manufacturer to be sure.
 
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Old Feb 20, 2011 | 11:52 PM
  #5  
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clhart426
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From: toledo oh
wow...seems a little more in depth than i thought haha. thanks a lot tho guys
 
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Old Feb 21, 2011 | 09:22 AM
  #6  
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From: southwest pa
cam lobes can be sharp too. i sliced up my hands pretty good when changing mine out. its not hard, but can take a whole day to do.
 
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