Thanks for all the info. I decided to forgo a ZDDP additive and purchase an oil that contained the needed zinc/ phosphorus. I got Royal Purple HMX High Mileage Synthetic 10w-30. (95k on the engine, still runs great)
https://www.summitracing.com/parts/RPO-11750The main reason I went synthetic is so I don't have to be dumping out five quarts of oil and a filter every six months, with only 500 or so miles on them. So now, the engine will be protected, and I should be able to go a year between changes.
"Posted by: Wittsend
« on: Today at 12:25:17 AM »
Quote from: dick1172762 on Yesterday at 05:33:04 PM
RANGER roller cam will fix the problem for ever. What I did to my 80 Pinto. Cheap fix and stay away from duel springs on anything except an all out race car.
I paid about $25 for my roller cam and rockers at a Pick Your Part sale. Probably the ZDDP additive costs associated with four oil changes (less the cost of the oil)."
Dick and Wittsend,
Could you tell me what years of Ranger 2.3's I need to get the roller cam and followers from? Is it a straight across: remove the flat cam and followers, and replace them with the roller cam and followers? Do I need to pull/ buy the lifters, springs or anything else for the swap?
Thanks again for all the info and help.