Pushrods

[Col Klinx]

Ive got the heads off my truck and my buddy said that the pushrods wouldnt need to go back in any particular order. I picked up a haynes manual on Ford v-8's and it says they need/should go back where they came from. My question is will it hurt the truck if i dont reinstall them in the correc location? I have heard if you don't reassemble the lifters if you reuse them and they go in the wrong spots then they can wipe out a cam. The book wasnt too specific it just said they should be kept in order. Ive also got the non adjustable rocker arms and does anybody know how tight they should be or just tighten them up fairly good?

 

[GEORGE]

the reason they say to put them back in the same way they came out is because each lifter, pushrod, and rocker arm wears differently ...... i personally havent had any problems ............. ford or chevy (sorry for swearing) LOL

as far as tightening them look under torque specs. my 460 called for 18-25 ft. lbs.

 

[BlackFord77]

YES- it is very critical that the parts go back in order. sometimes a block can be made with one lifter slightly (can't see with your eyes) larger (oversize) lifter in one of the bores. If you reinstall a big (oversize) lifter into a small bore when it heats up while running- there goes your motor block KAPOW! Secondly the pushrods break into their particular lifters AND rockers from new. If you rearrange them you can get bad pessure leakage at either end of the pushrod resulting in quickly worn valves (where the rocker contacts). If you don't have proper machinists tools- never replace lifters on your own. I find it a lot easier to let my local engine shop play with the cam and lifters. LASTLY- non-adjustable rockers are the most humongous pain in the a**hole ever invented. But luckily you have me and this is how you get around it--- Positive stop rockers must be torqued down and are not adjustable HOWEVER if you grind or add thin washers to the flat sides of the half moon washers (in the rockers) there's your f**k the factory machinehead tip-of-the-day. And the ONLY easy way for free adjustment. It saddens me that positive-stops were ever invented, and that flatheads aren't in new cars. I mean- who needs extra parts to fail with all the electronic deals in new cars we have enough on our plate. It was much better when the valve rode on the cam- add an adjuster to the valve length and your easily set to go. Really cars/trucks are meant to take you places, not leave you stranded. I understand that overhead valves produce better fuel flow- but couldn't they have adjusted the height of the cam and situation and angle of valves to produce better draw on intake? Sorry to ramble. Hope this helped.