Springs Vs Cam

wannabecummins

wannabecummins

Baloney Tugboat
Joined
Feb 6, 2010
Messages
124
So my dad raised a good question to me the other day. I've ordered a set of 110# springs and pushrods for my cr:woohoo:. Now with heavier springs obviously comes more pressures on all the valve train. Is there going to be increased rate of wear on the tappets and cam vs. stock springs? or is it too minor to even worry about? i'm not sure if this has been discussed before but i'm just curious
 
most say its minor.

I'm a firm believer in running as light of a valve spring as you can. I spin to 3600, at 60-65psi of boost with stock springs, and will continue to do so unless i go to twins or up the r's
 
I have pulled engines apart that have run 50,000 to 70,000 miles with my springs and over 150,000 miles total on the engine. The tappets and the cam looked brand new with no signs of wear. If oil is changed at decent intervals and a quality oil is used, then there should not be much wear at all. THe only place I see wear is on the rocker arm fulcrums. I can't say that it is worse with my springs because it is bad with factory springs. The culprit here is low zinc oils not spring pressure in my opinion. Before the oils were changed I saw very little if any wear even with much heavier than 110# springs, after the oil changed, I started seeing a good bit of wear on stock engines.
In short Zinc additives are a big part in reducing rocker and valvetrain wear.

Zach
 
Hamilton Cams said:
I have pulled engines apart that have run 50,000 to 70,000 miles with my springs and over 150,000 miles total on the engine. The tappets and the cam looked brand new with no signs of wear. If oil is changed at decent intervals and a quality oil is used, then there should not be much wear at all. THe only place I see wear is on the rocker arm fulcrums. I can't say that it is worse with my springs because it is bad with factory springs. The culprit here is low zinc oils not spring pressure in my opinion. Before the oils were changed I saw very little if any wear even with much heavier than 110# springs, after the oil changed, I started seeing a good bit of wear on stock engines.
In short Zinc additives are a big part in reducing rocker and valvetrain wear.

Zach
Click to expand...

So, your saying either find a older CI-4+ rated oil which has a higher zinc content or add your zinc additive to the newer low zinc CJ-4 oil to compensate and reduce this wear?
 
Hamilton Cams said:
I have pulled engines apart that have run 50,000 to 70,000 miles with my springs and over 150,000 miles total on the engine. The tappets and the cam looked brand new with no signs of wear. If oil is changed at decent intervals and a quality oil is used, then there should not be much wear at all. THe only place I see wear is on the rocker arm fulcrums. I can't say that it is worse with my springs because it is bad with factory springs. The culprit here is low zinc oils not spring pressure in my opinion. Before the oils were changed I saw very little if any wear even with much heavier than 110# springs, after the oil changed, I started seeing a good bit of wear on stock engines.
In short Zinc additives are a big part in reducing rocker and valvetrain wear.

Zach
Click to expand...

perfect thank you as i could not get the answer from anywhere else, i can't wait to get mine in, but for some reason they are being held at the border due to a clearance delay:(
 
AJenson said:
So, your saying either find a older CI-4+ rated oil which has a higher zinc content or add your zinc additive to the newer low zinc CJ-4 oil to compensate and reduce this wear?
Click to expand...

yes, lack of zinc is brutal on motors, especially to the valvetrain and cam
 
it will be same depending on the rating.

thats part of what makes up the rating. zinc is being removed from the oils because if the engine is burning oil it will ruin the catalytic converter
 
There is always a small amount of burnoff. Burnoff is the small bit of oil left in the crosshatch of the cylinder wall. When the piston is on its downward travel and fuel is burning a small amount of this oil gets burned and the remains exit the exhaust valve. These remains along with carbon and soot get trapped in the dpf of newer vehicles. When the engine regenerates the zinc will not cleanout. THis more or less renders dpf's useless and causes them to clog up prematurely. With high cylinder pressure and temperature synthetic oils are better in burnoff tests because of their molecular structure which fights oxidation. Also I believe that Amsoil still makes a marine synthetic diesel oil which still has high levels of zinc in it. Get with sledpuller on the specifics since he is a distributor for amsoil Gene is his given name.

Zach
 
Hamilton Cams said:
There is always a small amount of burnoff. Burnoff is the small bit of oil left in the crosshatch of the cylinder wall. When the piston is on its downward travel and fuel is burning a small amount of this oil gets burned and the remains exit the exhaust valve. These remains along with carbon and soot get trapped in the dpf of newer vehicles. When the engine regenerates the zinc will not cleanout. THis more or less renders dpf's useless and causes them to clog up prematurely. With high cylinder pressure and temperature synthetic oils are better in burnoff tests because of their molecular structure which fights oxidation. Also I believe that Amsoil still makes a marine synthetic diesel oil which still has high levels of zinc in it. Get with sledpuller on the specifics since he is a distributor for amsoil Gene is his given name.

Zach
Click to expand...


Sweet!!!!!!! Thanks!!!!!!
 
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