Blow by
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Joined: Feb 2007
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From: Sterling Heights,Mi
Blow by
IF my memory serves me, Blow buy is cause by the rings, this could be caused by egg shape cylinders, busted ring, ect..So, If I was able to pick up a motor with blow by, would it be worth the time to rebuid. Next, I have not heard anyone here talk about boring a cylinder in the 7.3, so do you resleave these things, or what would be the standard repair??
Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Blowby is mostly caused by the rings and also a very small part by the valve guides.
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Given the track record cracked blocks next to the freeze plug and along the top of the oil pan, I think it is best to just go by a new block.
Those new crate engines don't do much for me because I think they have PMR's.
Or buy a crate engine and swap out the rods before you even install the engine in the truck.
All those are pretty expensive options, however.
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Given the track record cracked blocks next to the freeze plug and along the top of the oil pan, I think it is best to just go by a new block.
Those new crate engines don't do much for me because I think they have PMR's.
Or buy a crate engine and swap out the rods before you even install the engine in the truck.
All those are pretty expensive options, however.
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Joined: Feb 2007
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From: Sterling Heights,Mi
Thanks Dan, I was thinking I could get the block cheap, and work on it over time. But, since Murphy and I have such a long standing realtionship, I thought I should ask.
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I got my old block in the garage that might go this route, but its going if it does, its going to be a built bottom end, not stock lol.
The block can be punched out until I think its 30(I think its 30) over before a sleeve. I know if its only needs 10 over to get cleaned up, you will not need a sleeve.
Its not worth it, unless you want to go built bottom end to do the work yourself really. There is a place in Texas that is a motor exchange, you sent your motor, they send you a rebuilt one, I believe there cost is 2900$ with core. This is a long block though, with heads. IMO
The block can be punched out until I think its 30(I think its 30) over before a sleeve. I know if its only needs 10 over to get cleaned up, you will not need a sleeve.
Its not worth it, unless you want to go built bottom end to do the work yourself really. There is a place in Texas that is a motor exchange, you sent your motor, they send you a rebuilt one, I believe there cost is 2900$ with core. This is a long block though, with heads. IMO
