Ford 7.3L Gas Engine

[deerefan]

We had a 2013 Expedition, 5.4 3v. As it got closer to 100k miles, it would be 2qts low at 5k mile oil changes running synthetic oil. Traded it at 97k miles for an Armada. Never smoked or leaked, just 2qts low at oil changes *

 

[Tomtint]

I had a new 2012 6.2 F350 4x4 regular cab. It was a real nice motor, plenty for that truck and my needs. Also had a 15 F350 4x4 Platinum with the 6.2. It was also trouble free and power was adequate for around town and as a casual highway truck. ..I found it a bit underpowered pulling 8k+. It would do it but you knew the load was back there. Neither one had any oil consumption issues.
...I also have a 1999 F 150 now that is my run around beater truck..it's got 180k on it... for some reason I like it and keep throwing money at it to keep it going..it's a 5.4 4x4 extra cab and it burns between 1.5 and 2 quarts between 3k mile oil changes.

 

[straps57]

I believe he's referring to the new GM 6.6 gas engine that's just been introduced. Would be interested to see how it compares to the new Ford 7.3.

You are correct about the gas 6.6. Sorry for the confusion.

 

[TractorGuy]

I had a new 2012 6.2 F350 4x4 regular cab. It was a real nice motor, plenty for that truck and my needs. Also had a 15 F350 4x4 Platinum with the 6.2. It was also trouble free and power was adequate for around town and as a casual highway truck. ..I found it a bit underpowered pulling 8k+. It would do it but you knew the load was back there. Neither one had any oil consumption issues.
...I also have a 1999 F 150 now that is my run around beater truck..it's got 180k on it... for some reason I like it and keep throwing money at it to keep it going..it's a 5.4 4x4 extra cab and it burns between 1.5 and 2 quarts between 3k mile oil changes.

Good to know the 6.2s weren't all bad. Kind of wish I would have looked further into the F250 I saw advertised but it wasn't that great of a deal to have engine issues.

I have to keep talking myself out of buying things I don't need since I retired.

My truck is a 2003 F150 extended cab with the 4.6 2V engine. It has the tow package and a 3:55 limited slip rear axle but only 2WD. It has pulled my 99 Mustang GT with the same engine all over the southeast. At 180K it still does not use a drop of oil between 5,000 mile oil change intervals. I run Motorcraft 5W20 synthetic blend and Motorcraft oil filters in both vehicles. The Mustang only has 115K on it but they are like dog miles since a good many of them are from track days.

 

[goeduck]

^^^ those 4.6 engines are very reliable from what I understand. Nice.

 

[Tractorable]

Here’s a video of an engine tear down of Ford’s new 7.3L gas motor. Pretty beefy bottom end....

Skip to 2:10 in the video to get to the good part:




7.3L Godzilla Ford V8 Bottom End Teardown ? How Big Can this Engine GO? Crank, Rods, Piston, Block - YouTube

 

[ruffdog]

Here’s a video of an engine tear down of Ford’s new 7.3L gas motor. Pretty beefy bottom end....

Skip to 2:10 in the video to get to the good part:




7.3L Godzilla Ford V8 Bottom End Teardown ? How Big Can this Engine GO? Crank, Rods, Piston, Block - YouTube

Two things....what is going on with that weird saw cut between the cylinders at the deck? Right at the place the cylinder pressures are greatest (TDC), the cylinder thickness is quite thin. It just looks like a after-thought.:2cents: I'm not impressed with the timing chain either. Not what I would expect in a high mileage truck engine. (Rods and pistons too)

 

[Sawyer Rob]

I'm not impressed with Siamesed cylinders at all...

SR

 

[Motorboatin]

Two things....what is going on with that weird saw cut between the cylinders at the deck? Right at the place the cylinder pressures are greatest (TDC), the cylinder thickness is quite thin.

The guy said it's for cooling and that it helped with reliability. Siamesed cylinders don't have cooling jackets between them so that area gets hot but that cylinder design also has it's advantages so Ford tried to get the best of both worlds by adding a cooling channel

 

[ruffdog]

The guy said it's for cooling and that it helped with reliability. Siamesed cylinders don't have cooling jackets between them so that area gets hot but that cylinder design also has it's advantages so Ford tried to get the best of both worlds by adding a cooling channel

About all that saw cut will provide is a way to bleed off a air bubble in that location. There is not much area now for the head gasket to seal where the saw cut is.