Mario's Motor

[Marty]

It all started with a bad running motor. Once the valve covers were off this is what I found. Lifter was F'd... and it was driven about 500 miles with no valves operating. The #1 piston is presumably fried so instead of spending a lot of money on machine work, to just swap in forged rods with a new motor.



So the truck is here, I went and got a forged rod motor for it.





The valve train had all been removed so I had to pull the heads since some had dropped into the cylinders.


















Prepping the block for paint after I get the studs/gaskets.

[Phiber Optik]

piston damage caused by valve float?

or

lifter get stuck in the bore and cause the piston to valve contact and then bend the pushrod?

[PahStroke]

sorry for getting off track marty but its required to take the cab off to pull the engine right?

[CloverLeafFarm]

Originally Posted by PahStroke

sorry for getting off track marty but its required to take the cab off to pull the engine right?

no need to pull motor

[907DAVE]

Looks like you used a few rolls of "E" tape. lol

[choctaw]

Still, more posts without secrets...............damn! Like those purple gloves, what's next???? PINK!

Looking good, Marty.

[Marty]

Originally Posted by Phiber Optik

piston damage caused by valve float?

or

lifter get stuck in the bore and cause the piston to valve contact and then bend the pushrod?

2 Broken pushrods on cylinder #1, the valves were not opening for 500 miles...

Originally Posted by PahStroke

sorry for getting off track marty but its required to take the cab off to pull the engine right?

Nope, just take everything off the front and take her out.

Originally Posted by 907DAVE

Looks like you used a few rolls of "E" tape. lol

1, and didn't have any masking tape and surely wasn't stopping to go get some LOL.

Originally Posted by choctaw

Still, more posts without secrets...............damn! Like those purple gloves, what's next???? PINK!

Looking good, Marty.

LOL, hey they were given to me by a guy whose truck I worked on so free is good .

[Phiber Optik]

Originally Posted by Marty

2 Broken pushrods on cylinder #1, the valves were not opening for 500 miles...

But what caused the broken pushrods, they dont usually just break, especially not both, and if they broke then the valves would stay fully seated and there shouldn't be any piston contact right?

[Marty]

I am not sure, probably something to the tune of WOT on ice from the story I've been told.


Anyway, yes when the pushrods broke the valves stayed closed.



Here are the heads I finished today...

[Str8Ugly]

where is a good place to buy a used motor for a f250? of where is a good place to buy a rebuild kit along with forged rods? mine has little puffs of smoke coming out of the motor but when i turn the cap over ontop of the oil filler it doesn't blow off the cap nor does any smoke puff out