To early

[AJ71DUSTER]

Well the duster's up for the year what I would like to know what you think . I have about 800 miles on new 408 I will will be replacing the oil before it gets to frick'in cold I have been running oil with Zinc would it be to soon to change over to regular oil? or go back to oil with zinc!

Thanks for input

 

[Ironmike]

Unless you're running a roller cam, you best run a good oil with ZDDP if you want that thing to last. ALL oil had zinc in it back when cars had flat tappets.

 

[AJ71DUSTER]

Thanks Iron mike, could you educate me on what ZDDP is this is my first new total rebuild and what I was told was run oil with zinc until 1000 miles then go to regular oil. but I do want it to last!!!!

THANKS

 

[rumblefish360]

You can get break in oil with the zinc in it. Ethier add a bottle of break in fluid or get 5 quarts with zinc in it. Replace the oil brfore starting it up in the spring.

 

[Burntorange70]

Whats the deal with todays cams? I put an old cam I had lying around sence 91 in my motor around 98. Have never added any zinc and have never had a proublem. Am I just lucky or are todays cams junk?

 

[rumblefish360]

It's between the quality of oil and spring pressures that wipe cams out among other things.

 

[AJ71DUSTER]

rumblefish you would follow the break'in period of 1000 miles? then change to regular oil.

Thanks

 

[rumblefish360]

What I do is upon start up, break in cam for 30 min.'s, change oil/filter.

Run engine again and tune in carb/distibutor and go for a few rides around town easy like., Change oil/filter.

Then again @ about 1,000 miles, then every 3000 miles until I have all leaks and other (If any) adjustments done and corrected to my likeing.

I'll make the move to sysnth around 10,000 miles or sooner and stay with that.

 

[AJ71DUSTER]

Thanks rumblefish360 I also changed oil at cam break in and twice since then due to finding the right carb settings, i thought during this time frame you could not change the oil enough to insure good oil. thats another thing i learned from this site,so if i read your post correct you still ran oil with zinc well after 1000 miles?