Hydraulic Lifter Prep for Assembly

Indycars

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Staff member
I have a set of 16 Crower hydraulic roller lifters (66310LM-16). To quote Crower's instruction included with
the lifters, "DO NOT WASH your new roller lifters. This will remove the pre-lube from the bearings."

Since the lifters are only inside a box without being inside a air tight seal and knowing how important cleanliness
is. It would seem that they would need a good cleaning before final assembly

Would would you do ???
 

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its almost always a good idea to READ and FOLLOW the manufacturers INSTRUCTIONS, they generally put them along with the parts to limit problems and reduce the chance of having a dis-satisfied customer and prevent component failures and make installing the parts easier.
IF THEY ARE ROLLER LIFTERS
youll want to inspect them carefully as a first step, if they seem to be in good shape , and the roller wheel spins easily ,with your finger on the roller wheel, you,ll want to find a clean container like tuper-ware or something similar like an old, carefully cleaned plastic container, and fill it to about 6" deep with a mix of about 20%-50% moly assembly lube and 50%-80% light machine oil like MARVEL MYSTERY OIL, drop the lifters in and let them soak a couple minutes then install them. per the manufacturers instructions in the blocks lifter bores, check clearances and alignment, the bearings have the rollers prepacked with a assembly lube and they don,t want you washing that packing lube with its high load rate moly additive out of the roller bearing, off in solvent so the roller bearing in the lifters wheel, runs (DRY) for the first few minutes under load.
but theres no reason not to add a bit of insurance by coating those roller bearings with fresh moly assembly lube and oil as the bearing races and rollers lap in during the rings breaking in, remember to swap oil filters after the first couple hours and adding several magnets in the engine to trap metallic crud sure helps durability. obviously you'll want to pre-prime the oil passages and get oil running from the push-rods and rockers while manually turning the engine before starting it to insure a well lubed break-in
revekit.jpg

on many hydraulic roller lifter applications a REV KIT on hydraulic roller lifters adds several hundred RPM to the power band before valve control issues develop

read these linked threads as they contain useful info


viewtopic.php?f=54&t=2187

viewtopic.php?f=53&t=3449&p=10012&hilit=assembly+moly#p10012

viewtopic.php?f=52&t=4589&p=12227#p12227

viewtopic.php?f=44&t=799&p=6574&hilit=priming#p6574

viewtopic.php?f=54&t=120&p=150&hilit=magnets#p150

viewtopic.php?f=54&t=4611&hilit=magnets

http://www.crower.com/misc/product/dl/ZDDP_clr.pdf
crcassembly.jpg

fedassembly.jpg

permassembly.jpg

adding this to oil won,t hurt either
zddplus.jpg


read this

Molybdenum Disulfide (Moly) has been used for decades in lubricating pastes and greases because it is slippery and forms a protective coating on metal parts:

Single Molecule of MolyMoly exists as microscopic hexagonal crystal platelets Several molecules make up one of these platelets. A single molecule of Moly contains two sulfur atoms and one molybdenum atom. Moly platelets are attracted to metal surfaces. This attraction and the force of moving engine parts rubbing across one another provide the necessary thermochemical reaction necessary for Moly to form an overlapping protective coating like armor on all of your engine parts. This protective armor coating has a number of properties that are very beneficial for your engine.

The Moly platelets that make up the protective layers on your engine surfaces slide across one another very easily. Instead of metal rubbing against metal, you have Moly platelets moving across one another protecting and lubricating the metal engine parts.

This coating effectively fills in the microscopic pores that cover the surface of all engine parts, making them smoother. This feature is important in providing an effective seal on the combustion chamber. By filling in the craters and pores Moly improves this seal allowing for more efficient combustion and engine performance.
This overlapping coating of Moly also gives protection against loading (perpendicular) forces. These forces occur on the bearings, and lifters. The high pressures that occur between these moving parts tend to squeeze normal lubricants out
 
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