Fixed 02 dodge ram 1500 4.7 L oil pressure

God bless you my brother's and sister's.
02 Dodge ram 1500 4.7L so I replaced the main and rod bearings piston rings and now this can someone please tell me what went wrong. And how to check for the cause be for I burn the rest of the pistons thank you.

That wrist pin got HOT... How's the cylinder look? Wondering how badly grooved it is now.

I think I'd be looking at how that wrist pin gets lubricated. Squirters?

God bless you my brother's and sister's.
Hey brother Tyler thanks for the reply the cylinder are good thank God just minimal scratches, was able to hone them out. The pickup tube did have shavings I had the head welded and the guy did grind this was done with the while the head was on the engine. Brother can you please tell me in what position the rings go just want to know if I put them on the right way. Thank you brother.

God bless you my brother's and sister's.
Hey brother Tyler thanks for the reply the cylinders are good thank God just minimal scratches, was able to hone them out. The pickup tube did have shavings I had the head welded and the guy did grind the head while the head was on the engine. Brother can you please tell me in what position the rings go just want to know if I put them on the right way. I also been reading up on this and read it could be a leaking injector but I have no misfire on smoke and I don't think the timing was of just need to rule things out before it burn an other piston. Can I lube the the pistons with engine gunk motor medic. Thank you brother for your help.

Man, it's been awhile since I worked with piston rings :blush: Not since college. Are there orientation marks on the rings? I seem to remember the dot indicates up. And space the gaps apart on the piston before installation. This is why I have respect for guys that do internal work on engines and transmissions :lol:

I dunno about leaking injector, as I figure that would cool the piston rather than overheat it :huh: Timing, maybe, but why not other cylinders?

Do you have more info on how the wrist pin gets lubricated?

God bless you my brother's and sister's.

Hey brother I don't have any real information on that by just that it gets splashed.
The ring's do have marks on them the #1 ring has a dot #2 has a diamond mark and the oil rings are the same. My dought is if i clock then in the right position. I set them according to instructions on the ring set. Don't know if the dealership has a different clock time for the ring's on the pistons.
The ring's where gaped in the block on the pistons so I don't know what went wrong again just need feedback ideas on what could of went wrong.

Gotcha. I was thinking about a possible lean condition in that cylinder, causing that cylinder to run hot and burn the piston. A restricted injector would be suspect in this case, or possibly an injector not firing at the correct time. If you have the ability to do an injector balance test, or possibly have the injectors sent out for flow testing, that may not be a bad idea.

While I'm speculating on fuel, maybe take a fuel quality sample? Thinking about E85 or water in the fuel.

I thought about some kind of cross-firing or timing issue, but this is a 4.7L with COP. Unless the coils were hooked up incorrectly, and I think you would have noticed that by now

I did find a note in one of my old textbooks about a loose spark plug causing the center of a piston to melt, something about increasing the burn time of the air/fuel mixture? Sorry for being vague on that one, I wasn't taking great notes at the time :blush: Not saying you left stuff loose, just something to consider.

GOD bless you my brothers and sisters.

Brother thank you very much for taking the time and goings back to check your note . OK then about the injectors i'm going to send them out to get serviced. Now about the fuel thing is i live in Tijuana Mexico and like Forrest Gump said you never know what you are going to get. LOL
I have also read about the wrong spark plugs being put in that will cause this i still have to check up on this i have gotten cars in here with three different plugs after get a tune up. I took the crank to a different machine shop and they said it was out of specs it is getting resurfaced. I will keep you posted thank you again for all your help.

gilbert wrote: Now about the fuel thing is i live in Tijuana Mexico and like Forrest Gump said you never know what you are going to get. LOL

:lol: :lol: :lol:

Here's hoping everything goes back together well on this one, sir! Very interested to hear if you find anything else.

God bless you my brother's and sister's.
I put the engine back together and all seems good.

gilbert wrote: God bless you my brother's and sister's.
I put the engine back together and all seems good.

I've got my fingers crossed for this one, sir! Didn't happen to find anything else of note during reassembly?