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Calling all FE Ford guys

Discussion in 'The Hokey Ass Message Board' started by FANTM58, Feb 10, 2014.

  1. FANTM58
    Joined: Apr 24, 2009
    Posts: 400

    FANTM58
    Member

    OK I'm working on a 68 FE 390 2 bbl backed by a C6
    Mileage around 140,000 ? I pulled out of a field and am
    Getting her up and running. I have a noisy lifter , and have
    Ran some sea foam through her ETC
    It doesn't have the adjustable rockers, and I'm
    Considering installing them,.i know through a bit
    Of research that there is a difference in ratio . Between to
    2. Set ups.would I use my existing push rods or do I
    Use one from a adjustable set up ?
    Also I may have bad lifter ? Is it OK to just replace the lifters
    With old cam.
    Thanks.
    Robb H
     
  2. Judd
    Joined: Feb 26, 2003
    Posts: 1,894

    Judd
    Member

    Adjustable rockers use different push rods with different ends.
     
  3. 392Roadster
    Joined: Nov 9, 2007
    Posts: 117

    392Roadster
    Member
    from Long Beach

    You would have to change the cam, lifters, pushrods and the rockers. Not a huge deal but does start to add up. IMHO I would keep the Hydraulic rockers and just change the cam, lifters and pushrods. This would save about $400-$500.
     
  4. Before you tear into it, give it a good flush. Seafoam won't cut the mustard IMO, try 4 quarts of 10W30 and a quart of ATF. Run it for at least a 1/2 hour after it's reached full temp, then drain and change; at this point I'd swap to 20W40 oil. You should also check your oil pressure, if the pump is worn that can do it also.
     
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  5. Rory428
    Joined: Mar 30, 2011
    Posts: 73

    Rory428
    Member
    from BC Canada

    You can use factory adjustable rocker arms with your stock cam & lifters, you would need the pushrods for adjustable rockers, as the non adjustable rockers use pushrods with balls on either end, while the adjustables use a ball on the bottom, with a cup on top, which works with the ball on the adjusting screw. However, if you do have a bad lifter, adjusting it won`t fix it. That said, its not uncommon for high milage FEs (or poorly maintained ones) to wear the ball ends of the pushrods badly enough to cause valvetrain noise.If I was you, my first step would be to remove the rocker shafts and pushrods, and take a close look. If the pushrod balls are round and smooth, they are probably OK, but worn pushrod balls usually take on a teardrop shape, often with a "nipple" at the end, if so, the pushrods are junk. New or good used pushrods may well cure the noise. Also look at the rocker arms, if the valve tips are noticably pitted, they should be replaced. If the tips look OK, slide the rockers over against the springs, and look at the shafts. If they are fairly smooth, great, but if they have large, rough grooves, no good.
    Keep track of the rocker shaft bolts, 1 on each bank is longer than the rest, and needs to stay in the proper position. The rocker stand mounting surface on each head will have 3 flat pads, and 1 with a countersunk hole. The longer bolt goes into the countersunk hole, that is how oil gets up to the rocker assemblies.
     
  6. FANTM58
    Joined: Apr 24, 2009
    Posts: 400

    FANTM58
    Member

    Good information
    Thanks !!!!
     
  7. 64*thunderbolt
    Joined: Dec 26, 2013
    Posts: 10

    64*thunderbolt
    Member

    I agree with Rory428,but you can replace a lifter with a new one on a used cam,but never put used lifters with a new cam, if you decide to replace it,be carefull of what you buy,the market is flooded cheap offshore junk.stick with a trusted name brand.
     
  8. 57Custom300
    Joined: Aug 21, 2009
    Posts: 1,268

    57Custom300
    Member
    from Arizona

    If you can't get it flushed out I would just replace the noisy on as suggested. We used to have to replace noisy lifters on FE's under warranty all the time way back when. Except for the 4 corner lifters it's a pretty easy repair. Corner ones you have to fish them around a bit. Still a whole lot easier than replacing it w/an adjustable set up.
     
  9. No you don't. The factory adjustable rockers (which are getting to be a little scarce) will work Fine with his stock cam and lifters. The only change other than the rockers is the pushrods, the ends are different. Have done this more than a few times including the 416" FE in my F150 right now. I would put a restrictor in the heads where the oil feeds the rockers though. These motors flow way too much oil to the rockers and the drain back in the heads is not very good. This keeps more oil at the crank and cam. The easiest way is a Holley Main jet, .040" to .080" in the feed hole under the rocker stand. One per head. Just slip it in, and the rocker pedestal holds it in place.
    [​IMG]
     
  10. barstowpo
    Joined: Jun 27, 2012
    Posts: 232

    barstowpo
    Member

    The main jet in the feed hole is a great idea. Also if you are going to tear into the motor, I would put hard seats on the exhaust.
     
  11. ttpete
    Joined: Mar 21, 2013
    Posts: 177

    ttpete
    Member
    from SE MI

    I still have my lifter tool to pull them out. That and a long magnet.
     
  12. Are you sure it's lifter noise? FE motors are notorious for knocking out the bushings on the top end of the connecting rod (wrist pin end). I thought I had a bad lifter on my wife's S code convertible Mustang but it turned out to be 2 connecting rods.
     
  13. mammyjammer
    Joined: May 23, 2009
    Posts: 492

    mammyjammer
    Member
    from Area 51

    My 352 had a wrong bolt in a rocker shaft support when I bought it.
    Bolt was juat a little too long and bottomed out before it got tight.Every time the pushrods pushed on the rockers the support would raise a couple of thousanths and then bang back down. Sounded JUST like a bad lifter! I was pulling the rocker shafts to start changing out some lifters when I found it....
     
    Last edited: Feb 12, 2014

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