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Old 03-05-2010, 12:48 PM   #1
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SVT Valve adjustment question.

I was wondering if we are supposed to do a valve adjustment on the SVT's valve shims?

I have noticed that the SVT has a similar setup as the old V6 S.H.O. which required a valve adjustment every 60k. although there was not much of an adjustment done it was more of a check of clearance between the shims and the cam.

Do we need to be checking this?


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Old 03-05-2010, 01:01 PM   #2
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no adjustment, you have to check clearance and swap out buckets. There are no shims involved.

you can check them pretty easily, takes 2 or 3 hours. Then you have to order the right sizes. Then another 2 hours once you get them to install.

I just got done doing this for my car, and ive also helped Matt and Joe with theirs.
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Old 03-05-2010, 06:19 PM   #3
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I checked mine @ 20K when installing exhaust cam gear, and plan to recheck when the valve cover gasket starts to leak.....or I have any other reason to have it off.

The valve-train should be very stable so long as good oil is used and changed often enough. Sure doesn't hurt to check the clearance, though. Pain in the arse to actually adjust if it is needed.

Clearances must be accurately recorded, cams removed, buckets measured and compared with clearances. Some times you can actually just swap them around and get everybody in spec, but that is just luck if it happens. Mostly you will need to order the specific ones needed to get things where they belong. Install everything and (fingers crossed that you didn't screw up) remeasure all the clearances.

Lots of work if you find a problem, but better to find a small clearance problem than let it snowball into something bigger. Have seen Toyota valves get tight as the seat/valve wear and burn when run without adequate clearance. Only had to adjust one Zetec so far so, mostly, they are solid and trouble free.

Again, if you are in doubt....check! You'll sleep better knowing all is well.
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Old 03-05-2010, 06:47 PM   #4
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can anyone show a link or some sort of how to do it. i want to do mine as mines sounding angry and loudd.
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Old 03-06-2010, 11:45 AM   #5
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Here's a link to my post on replacing valve buckets-I hope it helps.
http://www.focusfanatics.com/forum/s...42#post2953042
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Old 03-06-2010, 01:05 PM   #6
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One thing I can suggest that makes it easier once you decide that the cams need to come out for adjustments is to leave the belt off and just do one cam at a time.

IMPORTANT: Put the crank past TDC so all pistons are half-way down in their bores. If you put a long 3/8 extension down the sparkplug hole you can see when it is about half-way. This eliminates the possibility of hitting any valves on the pistons...which WILL happen if you get things out of time. With the crank set like this, you can measure and swap buckets on each cam with no worries. Saves a lot of hassle.

Once you have everything like you want, put the cams in time and gently back the crank up to TDC.
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Old 03-06-2010, 02:26 PM   #7
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Quote:
Originally Posted by 02ztsian View Post
Here's a link to my post on replacing valve buckets-I hope it helps.
http://www.focusfanatics.com/forum/s...42#post2953042
Your sig says you don't drive an SVT...
I thought the SVT used shim-over-bucket??
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Old 03-06-2010, 03:14 PM   #8
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Quote:
Originally Posted by WuNgUnSVT View Post
Your sig says you don't drive an SVT...
I thought the SVT used shim-over-bucket??
I am building a Zetec with a SVT head swap for my Merkur project. There are not normally shims with the SVT head-they use buckets like a regular Zetec but in different sizes (11.xxx mm vs 17.xxx mm).
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Old 03-24-2010, 09:32 AM   #9
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I notice that my SVTF makes a clicking sound that is in time with the engine at idle. It's extremely apparent if I'm beside a wall or going through a drive through. To me it sounds like a clicking valve. Anyone else ever notice this? Maybe it's time for me to check the valve clearance.
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Old 03-25-2010, 12:14 AM   #10
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Yeah, it must be the valves. I hear mine all the time. lol
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