99 7.3 camshaft wear replace ?
 

Hey every one I'm in the middle of rebuilding a 7.3 due to low compression and the cam is worn on a few loves and wanted to get some apinions on if it should be replaced or re ran thanks in advance

What did the roller look like on the tappet?

That looks deep, I don't think re grinding will help, also there's a lot of heat on that lobe did the lifter get stuck?

Here's another

Some very faint lines and rolled smooth as silk

The 1 groove is pretty deep and there is another that has a dot but all the lifters are like new

Just for comparison, I'll share a photo of the cam still an OBS 7.3L:


https://cimg4.ibsrv.net/gimg/www.for...b1546b9a6f.png


No flat spots, rough patches, grooves, or pitting. In your picture... I see the glare disappear on the worn part of the cam. This means the surface is roughened, and it will act like sandpaper on the lifter. I'll bet those lifters are done as well.

The lifter are actually all in great shape. They don't match the cam condition but I just don't feel good about putting this cam back in. Does any one know where I can find another one ? Stock replacment. I'm having a hard time finding one new. I have another engine I can rob it out of but would rather get new.

X-2 on new lifters. The old ones may look OK but it is a lot of work to replace them if they are not.

Not only that but it sure would suck to have to get another cam because you like new lifters pooched the new cam

Yeah, once you are that deep, mine as well replace the lifters. For the money, it's a worthwhile thing to do.

Ya I already had it quoted to have them replaced I just didn't plan on the cam being bad so there will absolutley be new lifters going in. I would like to find out how this happened tho. It's in a manual trans truck so I'm thinking it is from to much rpm over the years. It has 239000 miles and the bearings, crank, and pistons look pretty good it's just the cam. The reason for rebuild is low compression, all of the cylinders were 280 - 330psi. Customer just wanted to have the engine 100% again it did run pretty good with the compression it has didn't smoke to bad ether. But I did include new HD lifters from dynamic diesel in the original quote. Thanks walleye hunter, I will check it out. I just searched Google to find one. I'm going to ask my local machine shop to get a price as well, try to keep the money local if possible

Jst curious. Any history on oil change interval? Oil in my truck has ben changed at ~3k intervals since new and is still "clean" - on the dip stick at least. Nothing fancy, "old formula" DELO 400 15W-40. Just because the OA says all of the additives are good to go does not mea that it is not full of soot - read "polishing compound".