Bleeding lash adjusters???
Bleeding lash adjusters???
Hi guys i have a question for motor builders.
When you bleed lash adjusters in Service Manual it says to install ASAP in the engine when you fill them with diesel fuel. I don’t plan to drop engine in the car for a month or so, do you guys think that I should install them right before I install engine in the car or if I assemble it now it will be fine??
Also in the other thread it says to bleed oil from lash adjusters. But i just found procedure in SM. That says that lash adjusters have to be filled with diesel fuel before install. here is procedure go to number 8 and 9.
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.
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.
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.
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 pressure chamber.
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 performed in container C, foreign matter could enter the pressure 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 contracts 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.
When you bleed lash adjusters in Service Manual it says to install ASAP in the engine when you fill them with diesel fuel. I don’t plan to drop engine in the car for a month or so, do you guys think that I should install them right before I install engine in the car or if I assemble it now it will be fine??
Also in the other thread it says to bleed oil from lash adjusters. But i just found procedure in SM. That says that lash adjusters have to be filled with diesel fuel before install. here is procedure go to number 8 and 9.
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.
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.
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.
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 pressure chamber.
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 performed in container C, foreign matter could enter the pressure 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 contracts 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.
Last edited by Slava; Feb 1, 2008 at 11:12 AM.
Just found video that says leave them bled without liquid inside!!!
http://www.youtube.com/watch?v=gKX2pYVO0Ak
http://www.youtube.com/watch?v=gKX2pYVO0Ak
Last edited by Slava; Feb 1, 2008 at 10:27 AM.
I am saying that there is contradictory info here. Some people saying to leave adjusters without oil.Another DSM about lash adjusters service http://www.vfaq.com/mods/lifters.html
Also another bleeding method http://www.joe250.com/cars/evo8/cams...ftlifters.html
But in SM it says to fill them with diesel fuel!!!
SO what is the right procedure??
Also another bleeding method http://www.joe250.com/cars/evo8/cams...ftlifters.html
But in SM it says to fill them with diesel fuel!!!
SO what is the right procedure??
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I suggest it is a question of what you are comfortable with. Bled lifters make a large amount of racket when the engine is started. On the other hand, when bled, a pumped up lifter won't be shoving a valve into a piston. For storage I'd just make sure they can't rust.
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