Dropped a lifter..... - Vintage Mustang Forums
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post #1 of 5 (permalink) Old 12-11-2012, 07:03 PM Thread Starter
Join Date: Nov 2009
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Default Dropped a lifter.....

I've gotta replace a busted valve lifter in a 289.
The engine may have 5000mi on it in the last 20yrs
(since total rebuild).

Other than removing the intake and trying to pull it
out with a magnet, any suggestions/advice.....am
hoping to do this without removing/replacing the entire
cam assembly..........very rear, driver's side.

Thanks and Happy Holidays!
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post #2 of 5 (permalink) Old 12-11-2012, 07:18 PM
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Is it simply a "collapsed" lifter or has it cracked or broken? If it has collapsed, I would consider replacing all of them while you are at it. Pulling the intake and valve covers should get you access. You will need to loosen the rockers to get the push rod out and then the lifter should come out easily with a magnet. Check the bottoms for excess wear where they contact the cam. Also, could the problem actually be a flat cam lobe?

SWMBO's '66 Coupe 289, 2-V, C-4(Pony Interior, Rally Pac, A/C & Tiffany Stripe) & An absolutely rust free '65 289-2V C-4 coupe project. Now almost done. Only took 13+ years.
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post #3 of 5 (permalink) Old 12-11-2012, 07:19 PM
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Should be no problem. You don't need a magnet, the tip of a screwdriver on the inside lip at the top will do. Use new cam lube on the replacement lifter, and be sure you have sufficient ZDDP in your oil.

Amateur restorer. Well, sometimes I have been paid for it. But not right now.
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post #4 of 5 (permalink) Old 12-11-2012, 07:43 PM Thread Starter
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Yup.....planning on using engine builders lube on the bottom of lifter and Rotellat T as break in. No, the lifter is shot....very spongy when pushing down on the topside of pushrod. It was sitting idling after installing a new flywheel and I was admiring my work.....then clap, clap, clap, clap.....removed valve cover and noticed the rocker off to one side....reinstalled and had same results....checked lifter resistance.....MUSH! Oh well, at least it happened in a controlled environment....thanks
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post #5 of 5 (permalink) Old 12-11-2012, 11:04 PM
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Unless that Rotella T is vintage over four years old, it won't help you with the Zddp you are looking for with breaking in a lifter. You want either an additive or something like Brad Penn or Valvoline Racing oil.
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