Lifters

Flat Tappet Hydraulic Lifter Do You?


  • Total voters
    15

Bigredmariner

I'm too LAZY to Choose a Custom Title!!!
Lifetime Supporting Member
Joined
May 21, 2009
Posts
35,883
Reaction score
35
Location
United State of Texas
I had a cam guy here who does regrinds and he had recommend not to soak them because they found out the air bubbles would'nt come out and caused some issues-said back in the day they used to but now did'nt recommend soaking-BS?
There is always gonna be that one "professional" who spouts out a different answer from the old tried and true methods. Refer back to the manufacturer of your lifters and see what they say.
 

slims

If you cant have the truck you love, love the truc
Lifetime Supporting Member
Joined
Mar 9, 2010
Posts
6,249
Reaction score
0
Location
gonzales LA.
I had a cam guy here who does regrinds and he had recommend not to soak them because they found out the air bubbles would'nt come out and caused some issues-said back in the day they used to but now did'nt recommend soaking-BS?

It's still recommended to soak em and or pump em. If you don't, it won't throw the timing off.


---
I am here: http://tapatalk.com/map.php?yplb3c
 

63chevystepside

High speed low drag.
Joined
Mar 8, 2010
Posts
958
Reaction score
0
Location
us
Got them soaking til tomorrow-thanks guys-9 for soaking to 0 don't soak vote---id say odds be in my favor to soak them.
 

txab

Don't get stuck on stupid!
Joined
May 28, 2009
Posts
3,640
Reaction score
57
Location
Texas
You can soak them, doesn't hurt anything. I also prime the engine by spinning the oil pump and making sure oil is getting to all the rocker arms as well. I just use an old distributor that I converted to take a half inch drill.

+1
 

Tucson Z60

I know your your type...she's inflatable!
Joined
Mar 6, 2010
Posts
620
Reaction score
1
If your soaking and not pumping them up all your doing is coating the lifter with oil, a job you could do just as your installing them.

If your soaking and pumping them up read on:

A lifter filled with oil will not be able to be per-adjusted correctly and when installed your going to have valves that are open when they should be closed due to the lifter being full of oil when it should be bleed down.

What's going to happen is when you attempt to start the engine the compression will be all fWONked up so cylinders will not fire as they should so your attempting to start the engine with bad very little compression.

The lifter get it oil from the oil gallery in the that goes through the lifter bores. It enters through the pintal hole in the lifter when the lifter is aligned in the bore, The alignment is the tapered or skinny part of your lifter on the side, when this is lined up in the lifter bore it gets oil and bleeds it off through the push rod and then lubes the rocker arm and valve tip/train. With the lifter full of oil it's going to have the outer pintal hole lined up with the inner pintal hole that allows the lifter to fill with oil to not compress and the lifter will hydraulically lock open. They will bleed down but not very fast.

It's better in my opinion and some lifter manufactures like Johnson

The cam lobes get there main lubrication from the oil splash from the crank and rods and, this is why you keep RMP's up when breaking in your cam. So the more you rotate the engine attempting to start it and not getting "splash" the more wear your putting on your cam lobes and the better chance you have at cam failure.

Comp Cams tells you not to pump them up and that soaking ensures they are lubricated on the outside surface.

I voted no...Don't soak them.

http://www.compcams.com/Instructions/Files/COMP4-115.pdf
 

Stumpuller6.5

Shits gonna get Abrasive...
Lifetime Supporting Member
Joined
May 21, 2009
Posts
8,585
Reaction score
0
Location
Canukian Land
Unless the lifter is solid soak the bastards, 24hours is good practice, as your installing them push your finger into them and make sure they are solid, they shouldn`t move with finger pressure, if they do, use your thumb or finger to push the oil into them and see if they harden up, its hasrd to set soft lifters....
 

63chevystepside

High speed low drag.
Joined
Mar 8, 2010
Posts
958
Reaction score
0
Location
us
I got it all back together in the car and it is running! no issues! This is how i ran the valves-cam gear at 6 crank gear at 12-number 6 firing started there-with pistion at tdc-adjust both valves there to 0 lash plus a 1/2 turn-turned engine its normal direction on rotation 90 degrees then did next firing order-doing the same til back with number 6 at tdc-i soaked lifters for like 3 days in a bath of oil-but i did'nt pump them up priming them-getting 16inches of vacum at idle-just also had exhaust done-headers(1 5/8) then 2 1/2 inch pipe with a H pipe to flow master mufflers-today getting tires firehawk 255-60-15 all around-got back bracks wheel cyclinders and drum for back done also.i still got a way to go but it is almost drivable.
 

Members online

No members online now.

Latest posts

Forum statistics

Threads
28,836
Posts
1,109,352
Members
4,800
Latest member
SpeakerMan
Back
Top