skwerl
tree hugger
I've read here before that sand blasting the valve covers can create issues due to not being able to get all the sand out. I'm sorry.
I don't know what to think, not experienced enough, the only thing I know is that all the engines we bought from two very reputable engine builders had stock tolerances assembled with new parts and we only ever used 10W30 per their request. I don't buy the 5W20 thing when the same Ford told customers outside the US (who can get any oil they want, as we did back then) to use 30 oil instead. When you got a new mustang in latin america, the original manual said 5W30 instead of 5W20 (I can scan it for you if you want).Also, local Ford, always serviced 3Vs in F-150/Explorer and mustang with Motorcraft blend 5W30. And finally, 5.4 4V engines use the same clearance spec of the 3V in rod/main bearing to crank and comes with 5W50.
I've never used in a customer car or mine 5W20, never.
But as I said, I am not experienced enough. So, only my .02.
Probably a 10W was not good in current weather? maybe, I don't know.
What I think is that if mains are good, don't think it was an oil issue.
Looks rods are toast now so don't how effective would it be to measure them. I would get boss rods or manley turn the crankshaft and plastigauge them at install and sort them.
I've never bought into the government conspiracy mpg theory. IMO if 5w-30 gave better protection then it would also give better mpg due to less resistance. I know that Australia didn't have 5w-20 available until about a year ago and now that they do it's speced in new cars.
10w combined with a high pressure pump and .001" clearance could result in less oil flow and more wear during cold motor operation. I don't have the testing equipment to measure the differences. I do know that modular motors are well known for longevity and reliability so following what the manufacturer recommends isn't hurting them imo. Like you it's just an opinion from me, someone without a fluid dynamics background, lol. The motors I've torn down all looked good after running 5w-20. I'm sure that you have seen many more torn down motor bearings than I have.
That is good, the thing that I think we agree on is that neither the 30 would have done this not the 20 would kill other motors.
I have a different requirements locally too because we don't have winter weather ever, our seasons are dry or wet, that's all.
And I think you have built more engines that I've ever done, lol.
That sand stuff is big game changer, really sorry to see that.
Between you and Dark_horse, owe me quite some hours of good sleep, lol.
Sorry man! Yeah Im thinking the sand was definitely the cause. Running sand through a motor cant be good.
J/K I would prefer spending a few nights awake before you having to go thru this all over again.
That's why you are suppose to degrease the part after blasting it. We always make sure to do this and you should always do this again when you get a part back just to make sure it's all out. Just use a little dawn dish detergent
Lito if you lived closer I would take you out to dinner for sure man... On the oil topic... I have been running Joe Gibbs Driven LS30 with no issues what so ever... And after 2000 miles not a single drop of oil in my catch can... RJ my motor is out of the car as well and I feel your pain... luckily it looks like mine was just a follower failure... Heads are going to my builder tomorrow to be completely gone through...
On a separate note it looks like I will be building a fuel system.. which one did you end up going with?
I have the moroso breather tank... dual in