Cam install ?

300hp 3V 4.6L Engine, or a 210hp 4.0L V6 Engine.
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drakkhen_20
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Cam install ?

Post by drakkhen_20 » Mon Oct 01, 2007 10:05 am

What is actually involved in swapping cams in these 4.6s? do ya have to take the whole front apart or just pop the valve cover and go to town????Anybody know the process? any info would be really helpful, thsnks.
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sniperpat469
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Re: Cam install ?

Post by sniperpat469 » Mon Oct 01, 2007 10:26 am

As far as I know the front comes off to gain access to the timing chain.

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drakkhen_20
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Re: Cam install ?

Post by drakkhen_20 » Mon Oct 01, 2007 8:19 pm

Yes Pat thats what I'm asking. What do you do when you change the cams on a 4.6L?
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Re: Cam install ?

Post by sniperpat469 » Mon Oct 01, 2007 10:37 pm

Other than knowing the front comes off I wont be much more help, I have not done this myself.

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Mattr66
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Re: Cam install ?

Post by Mattr66 » Tue Oct 02, 2007 12:00 am

The process is somewhat involved and requires you to remove all the accessories and front cover and valve covers. If you've never done a modular cam install there alot that can go wrong including bending the valves on initial startup even if the cams are timed correctly.

It would be worth it to let a shop that has done alot of them do it for you. It's not like the good old days on pushrod motors...

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drakkhen_20
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Re: Cam install ?

Post by drakkhen_20 » Tue Oct 02, 2007 11:31 pm

yes but if I wanted a shop to do it I wouldn't have posted this. thats why I'm asking because I like to be "involved" in my car. So what do you have to do for the first start up to not destroy the valves?
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Re: Cam install ?

Post by Mattr66 » Wed Oct 03, 2007 11:51 am

http://www.fordmuscle.com/archives/2006 ... /index.php

Here is a good article on the old 2V cam setups. The 3V adds a bit of complexity with the variable cam timing gear, but it is almost the same procedure I assume. I have not done one on a 3V so I can't tell you first hand what issues they have.

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drakkhen_20
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Re: Cam install ?

Post by drakkhen_20 » Wed Oct 03, 2007 11:30 pm

Thanks. That opened a whole new world.
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Re: Cam install ?

Post by Kevin@PMP » Wed Oct 17, 2007 9:56 am

Cams can be changed on a 2v or 3v car without pulling the front cover you just need the proper tool (about $100 from Ford). It is a timing chain wedge that keeps the tensioners in their current state of tension when you take the sprockets off the cams. This way they don't get any tighter as you change the cams, you can then simply put the sprockets back on the cams and you are done.

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Re: Cam install ?

Post by Mattr66 » Wed Oct 17, 2007 3:56 pm

Kevin@PMP wrote:Cams can be changed on a 2v or 3v car without pulling the front cover you just need the proper tool (about $100 from Ford). It is a timing chain wedge that keeps the tensioners in their current state of tension when you take the sprockets off the cams. This way they don't get any tighter as you change the cams, you can then simply put the sprockets back on the cams and you are done.
do you have the ford part number for that tool? I would love to get my hands on that little jewel.....

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Re: Cam install ?

Post by Kevin@PMP » Thu Oct 25, 2007 11:22 am

Like most Ford tools it's manufactured by OTC, the p/n for the timing chain wedge and handle is: 303-1175.

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