New cam, but problems
Originally Posted by ShevrolayZ28
Duel springs and stock pushrods is a bad, bad combo. The stock pushrods will bend under that kind of spring pressure. Not to mention that you may also benifit from a slightly longer pushrods, if I'm not mistaken.
I'd pull it apart and check the oil pump and also put some titanium pushrods in there. You might want to invest in a pushrod length checker - $20(?).
Good luck
I'd pull it apart and check the oil pump and also put some titanium pushrods in there. You might want to invest in a pushrod length checker - $20(?).
Good luck
Originally Posted by ShevrolayZ28
I don't think anyone will disagree that you need to install better pushrods. If they aren't bent already, they may bend soon after you get on it s few times.
You don't need better pushrods but i would recomend some 7.425 chromoly pushrods to quiet down the valve train.
You ticking problem was answered in the foirst reply "shouldaboughttheZz".
You need to put a NEW o ring in there. with the heat the oring will shrink and there fore you CAN NOT re use it. i have installed over 100 cams and have seen this a few times. people bring me cars that are ticking and have lower oil presser after doing a cam/ oil pump swap. and every time it has been that they reused the o ring. well actually once it was pinched.
take it back out. take the oil pump apart and install just the oil pump case first with a new o ring. after you get the oil tube bolted up you can reassemble the oil pump and put everything back together.
I do it this wayu cause it is easier to put the oil pump on AND you can see the pick up tube outlet after you bolt it on so you can't pinch the o ring.
On The Tree
Joined: Jul 2002
Posts: 131
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From: tampa fl.
Originally Posted by SUX2BU
wrong.
and then tell me I'm wrong - I do this for a living.
Originally Posted by 01Bird_of_Prey
your wrong - do your home work before you say things you know nothing about. check this website out http://auto.howstuffworks.com/question164.htm
and then tell me I'm wrong - I do this for a living.
and then tell me I'm wrong - I do this for a living.
From the site you posted:
Viscosity is ordinarily expressed in terms of the time required for a standard quantity of the fluid at a certain temperature to flow through a standard orifice. The higher the value, the more viscous the fluid. Since viscosity varies inversely with temperature, its value is meaningless unless accompanied by the temperature at which it is determined.
On The Tree
Joined: Dec 2005
Posts: 137
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Originally Posted by 01Bird_of_Prey
Oil is it's thinnest when it's cold and it's thickest when it's warm, so there goes that theory
F
Originally Posted by 01Bird_of_Prey
Oil is it's thinnest when it's cold and it's thickest when it's warm, so there goes that theory
I would'nt let you work on my weedwacker.
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lol Sorry! Titanium pushrods will not be needed. I mis-spoke on that 
BUt chromemoly hardened pushrods of the proper length will work nice and might quiet things down. Plus they are much cheaper than titanium!
...and the oil "thickness" deal. Anyone that has done an oil change would know that the oil drains much faster when the engine is warm, 'cuz it's thinner.
BUt chromemoly hardened pushrods of the proper length will work nice and might quiet things down. Plus they are much cheaper than titanium!
...and the oil "thickness" deal. Anyone that has done an oil change would know that the oil drains much faster when the engine is warm, 'cuz it's thinner.
Originally Posted by ShevrolayZ28
lol Sorry! Titanium pushrods will not be needed. I mis-spoke on that
BUt chromemoly hardened pushrods of the proper length will work nice and might quiet things down. Plus they are much cheaper than titanium!
...and the oil "thickness" deal. Anyone that has done an oil change would know that the oil drains much faster when the engine is warm, 'cuz it's thinner.
BUt chromemoly hardened pushrods of the proper length will work nice and might quiet things down. Plus they are much cheaper than titanium!
...and the oil "thickness" deal. Anyone that has done an oil change would know that the oil drains much faster when the engine is warm, 'cuz it's thinner.
But what do I know Im Fuggin crazy
TECH Senior Member
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From: Western Burbs of Detroit
Not sure man, sounds like you got some issues. My Zo6 oil pump puts out 80 psi at WOT. Cold idles at 50 psi and warm to hot idles at 39-41 psi You do have too much valve spring for that little cam.
well that's the same pump i have... so i'm loosing pressure somewhere 
guess i'm gonna try putting a new o-ring in today....
and that's the spring kit that came in the cam kit
i dont really understand how that's gonna stop the ticking from the lifters... but ... i'll give it a try, and hope for luck!
guess i'm gonna try putting a new o-ring in today.... and that's the spring kit that came in the cam kit
i dont really understand how that's gonna stop the ticking from the lifters... but ... i'll give it a try, and hope for luck!
Originally Posted by SonofaBish
well that's the same pump i have... so i'm loosing pressure somewhere guess i'm gonna try putting a new o-ring in today....
and that's the spring kit that came in the cam kit
i dont really understand how that's gonna stop the ticking from the lifters... but ... i'll give it a try, and hope for luck!
guess i'm gonna try putting a new o-ring in today.... and that's the spring kit that came in the cam kit
i dont really understand how that's gonna stop the ticking from the lifters... but ... i'll give it a try, and hope for luck!
Last edited by shouldaboughttheZ; May 11, 2006 at 10:45 AM.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
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From: BFE
Originally Posted by shouldaboughttheZ
make sure you get the right one. There is a black one and a green one. The green one is thicker. Depending on the look of the pick up tube, depends on which o-ring you need.