460 Cam Replacement Part 2

encore! Just wait till part 3!

Category:

Autos & Vehicles

Tags:

• Ford
• pickup
• f250
• educational
• daves
• farm
• style
• redneck
• big
• block
• lifter
• ting
• engine
• grease
• beer
• pleasure
• head
• job
• cam
• instructional
• tree
• hugger
• eater
• sexy

[peacemaker50cal]

I think this might have to do with The new law on oil, it doesnt have the same levels of zinc and alot of people with flat tappet cams have noticed this. Try using an additive when you put in a new flattappet cam. Just a thought.

[RoadWarrior72]

@peacemaker50cal I use Lucas oil treatment. I have done some studying and found that ford had oil delivery issues on these engines.. No big deal though. Thanks for the info.

[Armistice023]

My 460 in a '91 ford f250 did the same thing on the same lobe at 59,000 miles. It had nothing to do with the valve adj. as there is none. Ford admitted there was a problem with lubrication on the lifter galley and I got a new engine with a high volume oil pump. (It is NOT in all cases the valve adj.)

[RoadWarrior72]

@Armistice023 Ya I have done a little research and have determined the same thing. I have 190k on it now, and I did this vid about a year ago. Surprisingly enough the same lifters on the same side are ticking again. I am just gonna drive it like it is... oh well.

[seapeddler]

In all cases like this the valves are too tight. You haven't proved the metallic composition of the lifter, so how do you or anyone know it's defective? If you have pedestal rockers, they must be adjusted precisely.They should slide sideways with a light drag with pumped-up lifters.You didn't mention how you adjusted your valves either.Perhaps the 460 has weird valve installed angles, but it was made that way for a good reason.Oils are calibrated for all engines new, and old.

[RoadWarrior72]

@seapeddler I didn't adjust the valves because I didn't need to. I adjusted the rockers according to my Ford factory shop manual.. And I know these lifters were defective because they failed in less than a month. This failure of course was after all proper adjustment procedures were followed. Sorry I didn't mention the way I adjusted things.

[RoadWarrior72]

@LakemaryDeuce That's interesting, I will have to research that some more. I wonder if they make a zinc additive. The interesting thing is that my engine is ticking again... Oh well. I also read that 460's by nature have an oil supply issue, the cylinders are larger than the valve train can keep up with lubrication wise..

[LakemaryDeuce]

My 460 did the same thing. The machine shop said that they have been having a lot of these issues lately because the oil companys have cut back on the zinc and other addatives in their oil. The newer motors don't need as much. So older engines are getting ruined.

[dnl5649]

@RoadWarrior72 i did the same, i used old lifters on the new cam. i knew you were supposed to replace them together because they wear in together, but i didnt have enough money and i was too excited and wanted too see the motor running as soon as i possibly could. so its my fault i ruined the cam.

i'm going to post a video of it soon, and maybe try and make a picture slideshow

[RoadWarrior72]

@dnl5649 Actually let me correct myself. I can do about 10,000 miles in about 5 maybe 6 months...