Bad-Duvall
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- Joined
- Oct 8, 2007
- Messages
- 1,419
How many miles do you have? IMO Id rather spend the money on pushrods then tappets.
And also when it comes to cams Id go w/ someone who will build a cam with your specs in mind
Why?
How many miles do you have? IMO Id rather spend the money on pushrods then tappets.
And also when it comes to cams Id go w/ someone who will build a cam with your specs in mind
Why?
Why what?
Well guys, thanks for the advice..
Like I said earlier...My Whole motor, block, etc has to come Out and Apart to go to the machine shop to get a make over....Had a boo boo!!
So new tappets will be ordered...I might even do push tubes....
I just want to do this ONCE and do it right!!!
It will be a Helix 2 cam going in....I've got the Ham. springs already....It would only make sense to have new tappets at least...
Thanks again guys....I'll keep you posted on the progress and results...
I can't stand my baby being hurt like this!!! LOL
Why would you rather spend the money on push tubes then tappets? That makes no sence to me. What we are talking about is can wear and how to prevent it yes it is good practis to chage push tubes when changing tappets but not as critical as the tappets. I just want to get to the bottom on why the cams are failing in the common rail trucks? I might also add its not just one cam supplyer its all of them!!
I'd think if there were a bunch of cams failing... there'd be a lot more talk about it. I've not seen anyone... recently anyway claim their cam has failed. I've also not seen any aftermarket tappets that claim to be better than stock. You say there's wear after 10 miles so what's going to be different if they're changed ? In 10 miles they'll be worn again.
Since I've changed to 110lbs springs a billet tubes, I do expect more than normal wear but, see no reason to upgrade tappets although the one's I have are only a year old. Guess I'll find out once I pull the cam.
By you takin the motor out you just saved your self lots-o-headach. lets just say you must be very very skilled to get the tappets back in.
the only reasone i see is if you go back with a re-grind cam then you may need .100 longer push tubes.
A couple if things that have happend over the summer has changed our ideas and policy on "drop-in" cams. Meaning installing a Helix 2 cam without changing the tappets.
In the early days we had either stock, Enterprise Engine, or Pro/Sportman Springs. All 3 of these springs have been very successful with our program of installing the Helix cams and using your old tappets. Saving time and energy on a cam install. Simplification was the idea.
Higher spring pressures (as of late) with a new cam and used tappets is starting to take its toll. The failures are still considered rare, but we have replaced 5 cams this past 6 months. In all the years since 2004, we have had no returns for worn lobes.
This is a direct result of higher spring pressures and todays oils having less of the good things we need to cut wear down for environmental concerns.
We now require that new tappets be installed if you are going to run high spring pressures. If you use stock, Enterprise Engine, or Pro/sportsman springs you can skip the new tappets and continue as always.
A couple if things that have happend over the summer has changed our ideas and policy on "drop-in" cams. Meaning installing a Helix 2 cam without changing the tappets.
In the early days we had either stock, Enterprise Engine, or Pro/Sportman Springs. All 3 of these springs have been very successful with our program of installing the Helix cams and using your old tappets. Saving time and energy on a cam install. Simplification was the idea.
Higher spring pressures (as of late) with a new cam and used tappets is starting to take its toll. The failures are still considered rare, but we have replaced 5 cams this past 6 months. In all the years since 2004, we have had no returns for worn lobes.
This is a direct result of higher spring pressures and todays oils having less of the good things we need to cut wear down for environmental concerns.
We now require that new tappets be installed if you are going to run high spring pressures. If you use stock, Enterprise Engine, or Pro/sportsman springs you can skip the new tappets and continue as always.
Since my lifters have been mated with your cam for over a year now, ( that sounded :homo: LOL )
I just got running a helix 2 with 50,000 miles on it over 2 years. In my opinion, I ran this truck pretty hard all the time and the cam came out better than I could have ever imagined. Since the motor is out, I'm sending the cam and tappets back to him for his inspection with a fine tooth comb.
Thanks for clarifying. If you could answer one more question plz. Since my lifters have been mated with your cam for over a year now, ( that sounded :homo: LOL ) they're obviously matched as far as wear. Since I now have the 110lbs springs, how do you think that will effect their wear on the cam / lifters ?
also what metals would show high in a oil analysis if the cam were wearing ?