'99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
I just had a major oil leak from a crack in my timing cover right below the surface where the oil reservoir mounts on top. By the way, this is in a early 99' F-250 4x4. My question is two part: How hard is it to replace the timing cover (do i really need to pull the engine), and I also contemplated cleaning the crack really well and just applying JB Weld, i know this isn't probably recomended, but it was just a thought. Any suggestions and instructions would be helpful. FYI, i'm a pretty adventurous mechanic, just got finished pulling and replacing heads in chasis on the same truck, so i'll take on a challenge. Thanks for your help.
I don't think that you need to pull the motor...you will need to remove just about everything forward of the heads though. JB weld might be worth a try..I know i would do it in a pinch. How much is it actually leaking? I sure wouldn't want to spring a leak out in the middle of nowhere with a failed JB Weld job.
I'm really leaning toward the JB Weld job, but pulling the motor just to get the oil pan off and resealed, just to get the timing cover replaced would be a heck of a project. If i'm not mistaken, the oil inside the timing cover is under low pressure, if i really took my time cleaning the small crack on the timing cover, do you think it would hold with JB Weld?? Or am i just asking to be stranded in the middle of nowhere cause all my oil blew out. If that did happen, i'm pretty sure i wouldn't toast the engine, but merely the injectors would quit firing, right? please let me know what you think, i really can't decide how to repair this.
At the risk of sounding bad.... there are several ways to "fix" this concern, only one of them is right... depends on your comfort level...
At the very least, you might want to pull the low pressure oil pump and inspect the housing in the front cover (the front cover is the "back" of the oil pump). If this is deeply scored, you may want to change the front cover (at your convenience) to avoid oil pressure or no start issues in the future.