preload comp 885 lifters 212/212 cam

[Alaskabuick]

Hey guys,

what should I set my preload at (cold) with the 885's & 212/212 cam? I have Champ Alum heads as well

Anyone know how much the head grow when hot? I have seen several opinions and it seems to favor little preload like .002. I am just trying to figure out wich way to compinsate for expansion.

As the motor gets hot I would get less preload from the initial cold setting? Is this correct?

thanks,

Dennis

 

[forcefed3.8's]

I set mine to .005 with aluminum heads.

 

[Alaskabuick]

I set mine to .005 with aluminum heads.

do you set them at .005 cold or hot?

thanks,

Dennis

 

[forcefed3.8's]

cold

 

[bison]

I set them at .001-.002 and could hear them after a pass for about 2 minutes from the expansion. You want to be sure the valves are closing.

 

[LOT]

Mine and 88ZNX

.030 or 1/2 turn past 0 lash--very quite. Now lets hear how wrong I am!!!!!!

 

[87action]

preload

You mean HOW RIGHT YOU ARE .....................classic

 

[Blown&Injected]

.030 or 1/2 turn past 0 lash--very quite. Now lets hear how wrong I am!!!!!!

fine for 883's but the OP is about 885's on AL heads...

 

[Mike Licht]

885's about .003 hot

 

[LOT]

885

fine for 883's but the OP is about 885's on AL heads...

I have 885 with aluminum heads.
I actually have Scorpion hyd. roller lifters but according to Dan @ DLS they are the same as Comp. 885 and I have to agree they do look to be the same.
They recommend .030 preload and I called to double check--sure enough they work great @ that setting
88ZNX is a friend who has the same lifters and runs them @ .030.

 

[Blown&Injected]

This is the first time I have seen that much preload for 885's - everything else I have seen says .002"

 

[LOT]

Hence

This is the first time I have seen that much preload for 885's - everything else I have seen says .002"

That is why my first post was worded as it was. I assumed I would be called out on it.

 

[V6gofast]

.
I actually have Scorpion hyd. roller lifters but according to Dan @ DLS they are the same as Comp. 885

Lee,
I don't recall ever having any such conversation with YOU ever. If I did have
any discussion with anyone it was pertaining to the 853 lifters. Don't use my
name to justify your backwards logic!!

 

[LOT]

True to form

I never said we had a conversation about these lifters. I once had a post that I thought I had found some Johnston lifters but they appeared to be the same as Comp. 885. You replied in that post that they were the same except in a fancy package!!!!!! I don't have the time to look up that post BUT it does exist. Thank you for your compliment on my thinking--don't know why I would expect anything less from you..

 

[bison]

The plunger is held down so far by the retainer on the 885's i doubt you could run .030 preload. You would hold the valves open

 

[Dwayne]

http://www.turbobuick.com/forums/engine-tech/273519-source-johnson-american-made-hyd-roller-lifters.html

post # 9

 

[LOT]

??

So what did you decide?