I know most cam manufaturers recommend pulling the inner valve spring at cam break in on a hydraulic flat tappet cam (Depending on the cam and spring pressures). How many of you actually pull the inner spring at cam break in? Just curious?
u just put the engine together with outters then install inners after break in
What cam, what spring?
first, I did not make a recommendation to not take the springs out. I actually would recommend it if he has the time, inclination and all that stuff.Yes we did "beat it to death", but I got news for you. Your engine is not out of the woods yet. I wish you the best of luck jpar, but you could still have a failure.
I would never recommend someone NOT have the inner spring removed for break in with dual valve springs.......even though as I said in the other thread I have done it myself in the past. Zinc in oil was not a problem back then.
The biggest thing is if you are just BOUND to do it with both springs installed, don't let the engine drop below about 3K RPM. That way plenty of splash lubrication will be happening and you will be much less likely to do damage.
Just because you got through break in does not necessarily mean you will not incur damage from not leaving the inner springs out. Only time will answer that. It is still best to leave the inner springs out. Whether you do or not is up to you and a risk you take and are responsible for 100%.
but again I recommend doing it I guess because everyone says you should
first, I did not make a recommendation to not take the springs out. I actually would recommend it if he has the time, inclination and all that stuff.
second, I never feel I'll be "out of the woods" as far as the motor goes given the way I plan to drive it.
third, (and this is the big third)- I've also read online (Bonjour - I'm a supermodel) where a guy because of the high RPM's for break in lost a retainer (because of low spring pressure/high lift cam) and had a car suffer catastrophic failure! so there could actually be arguments for not doing it, but again I recommend doing it I guess because everyone says you should and I wouldn't want to steer somebody the wrong way either way. I would use the most expensive breaking the oil you could find with zinc .
come on now you know manufacture say things to cover their butts. the manufacture of my cam said 350 pound Springs closed was borderline a little more and for sure he would pull the strings and a little less probably not. but to cover his *** he recommended that I did and I didn't. and one more time as a disclosure I don't recommend anybody to do what I did. I prefer to be the only fool.It's not "everyone" that says it, the cam manufacturers recommend doing it.
easy boy. I never said you did anything. I simply said what "i" would not advise doing.
Yes we did "beat it to death", but I got news for you. Your engine is not out of the woods yet. I wish you the best of luck jpar, but you could still have a failure.
I would never recommend someone NOT have the inner spring removed for break in with dual valve springs.......even though as I said in the other thread I have done it myself in the past. Zinc in oil was not a problem back then.
The biggest thing is if you are just BOUND to do it with both springs installed, don't let the engine drop below about 3K RPM. That way plenty of splash lubrication will be happening and you will be much less likely to do damage.
Just because you got through break in does not necessarily mean you will not incur damage from not leaving the inner springs out. Only time will answer that. It is still best to leave the inner springs out. Whether you do or not is up to you and a risk you take and are responsible for 100%.
first, I did not make a recommendation to not take the springs out. I actually would recommend it if he has the time, inclination and all that stuff.
second, I never feel I'll be "out of the woods" as far as the motor goes given the way I plan to drive it.
third, (and this is the big third)- I've also read online (Bonjour - I'm a supermodel) where a guy because of the high RPM's for break in lost a retainer (because of low spring pressure/high lift cam) and had a car suffer catastrophic failure! so there could actually be arguments for not doing it, but again I recommend doing it I guess because everyone says you should and I wouldn't want to steer somebody the wrong way either way. I would use the most expensive breaking the oil you could find with zinc .
Anyways, if your looking for humility let me reference you to the last sentence of post #17. As far as my dad, I'm just thankful he's alive, happy, and healthy. He's kind of old and frail, not bigger than anyone I know.Reading comprehension is FUN-D-MENTAL
Please stop with the my daddies bigger than yours crap. A little humility does everyone some good!
Think REAL hard before you hit the "submit reply" button.
Carry on!
LOL I guess next time I will use that search button before I ask a question. [/QUOT
your doing fine , in the midst of everyone trying to help (and they really are) there will be some (or a lot?) Of opinions, and sound advice. And sometimes a little eye poking.