Hydraulic Lifters ~ How can you tell if they're Good or Bad? - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 05-08-2010 Thread Starter
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Hydraulic Lifters ~ How can you tell if they're Good or Bad?

Okay, so we know how to remove the lifters on the 2.3, but my question is, how exactly do you tell a bad one from a good one??

I just pulled my motor, because I thought I had a rod knocking. Now I'm thinking it's a bad lifter.

How can I tell?

>I appreciate your input<

Turbo
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post #2 of 4 (permalink) Old 05-08-2010
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This may help, check it out.

http://www.chiltonlibrary.com/conten...s/88153g58.pdf


The 2.3L engine is equipped with hydraulic lash adjusters which, while not being exactly the same as a conventional hydraulic lifter, perform the same function to maintain proper valve train clearance. The hydraulic lash adjusters are placed at the fulcrum point of the cam followers (rocker arms) and act in a manner similar to hydraulic lifters in pushrod motors.
  1. Disconnect the negative battery cable for safety.
  2. Remove the rocker arm cover.
  3. Rotate the camshaft so the base circle of the shaft is facing the cam follower to be removed.
  4. Using valve spring compressor tool T88T-6565-BH or equivalent, compress the lash adjuster as required and/or depress the valve spring, if necessary, and slide the cam follower (rocker arm) over the lash adjuster and out.
  5. Lift out the hydraulic lash adjuster.
To install:
  1. Rotate the camshaft so the base circle of the shaft is facing the lash adjuster and cam follower to be installed. Place the hydraulic lash adjuster in position in the bore.
  2. Using valve spring compressor tool T88T-6565-BH or equivalent, compress the lash adjuster, as necessary, to position the cam follower over the lash adjuster and the valve stem.
  3. Before rotating the camshaft to the next position, make sure the lash adjuster just installed is fully compressed and released.
  4. Install the rocker arm cover.
  5. Connect the negative battery cable, then start the engine and check for leaks.
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post #3 of 4 (permalink) Old 05-08-2010 Thread Starter
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I know how to pull them I just don't know how to tell if I have a bad one or a good one. Some push down eazy some hard so what one is bad?
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post #4 of 4 (permalink) Old 05-10-2010 Thread Starter
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I FOUND THE ANSWER!!! After days of searching for the answer, calling the local Ford store, all the mechanic friends that I have, the answer finally came to me. Go Old School. I called my machinest buddy, who has been machining for 30 years. He explained it to me.

The oil goes up into the hydraulic lifter, pressurizing it, making it hard. So, any mushy lifters are not getting oil or getting pressurized. From what he says, the lifters take a while for the pressure to bleed off once the pressure is inside the lifter.

So that is the answer, if you have a mushy lifter, it is no good OR no oil pressure is getting to it.

The Ford dealerships response was replace them all - regardless. Which I have no problem doing, I just wanted to know good ones from bad ones.

Hope this thread helps someone out.

Turbo :yelpleased:
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