Does Any one know the proper way to clean lifters and rocker arms?? I am building a motor and want to make sure that everything is "new" when putting it into the new motor.. Please give me some insight on some safe methods to clean these 2 items in particular...

thank you!!!!!

 

any one???

 

factory service manual is your friend...
I believe the manual says to soak the lifters in diesel for a while, bleed them, lube and install, i may be mistaken though... for myself, i would just bleed the lifters, lube them and install, and brake clean the rockers, and soak them in motor oil, then install. I have done that many times with no problems.

 

^ thanks any one else...

 

LASH ADJUSTERS
CAUTION
• The lash adjuster is a precision-engineered compo-
nent. Do not allow dust or other foreign matter to enter
it.
• Do not disassemble lash adjusters.
• Use only non-contaminated diesel fuel to clean the lash
adjuster.
1. Prepare three containers and approximately five liters of
diesel fuel. Pour into each container the diesel fuel in an
amount enough for a lash adjuster placed in the container in
its upright position to completely submerge.
2. Place the lash adjuster in container A and wash its outside
surface.
NOTE: Use a nylon brush if there are hard-to-remove
deposits.
CAUTION
The steel ball spring of the lash adjuster is extremely
weak. The lash adjuster's functionality may be badly
affected if the special tool is inserted too strongly.
3. While gently pushing the internal steel ball using the special
tool MD998442, move the plunger in and out 5 − 10 times to
eliminate stiffness in the plunger and expel contaminated oil.
NOTE: The plunger must be free from jamming and any
other abnormalities. If a defect is found in plunger operation,
replace the lash adjuster.
CAUTION
The hole in the side of the lash adjuster must be directed
toward the inside of container A. Never direct it toward any
person.
4. Take the lash adjuster out of the container, then move the
plunger by pushing the steel ball gently to discharge the
diesel fuel from the pressure chamber.

CAUTION
The steel ball spring of the lash adjuster is extremely
weak. The lash adjuster's functionality may be badly
affected if the special tool is inserted too strongly.
5. Soak the lash adjuster in the diesel fuel in container B. Move
the plunger in and out 5 − 10 times by gently pushing the
internal steel ball using the special tool MD998442 until the
plunger moves smoothly to wash the lash adjuster’s
pCreAsUsuTrIeO cNhamber.
The hole in the side of the lash adjuster must be directed
toward the inside of container B. Never direct it toward any
person.
6. Take the lash adjuster out of the container, then move the
plunger by pushing the steel ball gently to discharge the
diesel fuel from the pressure chamber.
CAUTION
Do not use container C for cleaning. If cleaning is per-
formed in container C, foreign matter could enter the pres-
sure chamber when the chamber is filled with diesel fuel.
7. Soak the lash adjuster in the diesel fuel in container C.
Gently push the internal steel ball using the special tool
MD998442.
8. Place the lash adjuster upright with the plunger at the top.
Push the plunger firmly until it makes a full stroke, then
return the plunger slowly and release the hold of the steel
ball to allow the pressure chamber to be filled with diesel
fuel.
9. Take the lash adjuster out of the container, place it upright
with the plunger at the top, and push the plunger firmly. The
plunger must not move at all.
NOTE: If the lash adjuster contracts, perform the operations
7 through 9 again. Replace the lash adjuster if it still con-
tracts even after the pressure chamber has completely been
filled with diesel fuel (air has been bled).
10.Keep the serviced lash adjusters in their upright positions to
prevent diesel fuel from spilling out. Protect them from dust
or other foreign matter. Install the lash adjusters onto the
engine as soon as possible.

 

^^^^bINGO, that's what I did. Flush the lifters and fill them with diesel.

 

The JAM Lifters are also a good choice since your rebuilding anyway

 

+2 Thats what I do every single time with great results!!

 

Just wanting to make sure, so you fill the lifters with diesel fuel, and you put them inside the engine with fuel still inside the lifters ??? I read the manual and it looks like thats what is supposed to happen ..

 

I think better would be if we remove diesel fuel and lube them not make too full.

 

So would we install the diesel filled lifters into the motor? Wouldn't diesel be released into the crankcase destroying the oil?

 

true... I guess Mitsubishi was wrong

Yes, install them Diesel filled.

 

Right on thanks for the clarification I'll be doing this today, I have always just bled them down and installed them however I keep having lifter issues so time to try this!

 

I just completed this service for my JAM lifters and two of them are staying spongy not getting solid like the rest with diesel. Looks like that is where my major lifter noise is coming from!

 

This was great info. I'll be performing this cleaning on my engine build.

Wouldn't it be better to fill lifters with oil after cleaning? Maybe have three containers of oil to flush the desil and refil with oil.