$350 93 IDIT in Big Red now... Concerning sounds

After blowing the head gaskets in the '88 motor in my '93, I put this 'running' '93 IDIT motor in it. It worked... but ticks. I'm concerned.
If I can get it to not tick, I'd be plenty happy with it. Feels fine... but sounds horrible.
I've already driven perhaps a hundred miles with it, too, about 30 towing a trailer, so it doesn't seem like it's going to instantly blow up or quiet down...

[@MacRobbSimpson]

2.5 years later: She still runs just fine. Somehow! She still ticks just as much as she did two years ago; I've done little to the engine other than add oil every ~3K miles and beat the **** out of it! Somehow, despite everything, she had no problems with towing a 5th wheel at ~70 back from Portland this summer, pushing EGTs above 1K constantly, and coolant temps in the 240 range! And she still seems to be doing about the same!

[@MacRobbSimpson]

So... still running. Added 2 quarts of Marvel Mystery Oil and am just driving it. Yesterday, I drove 80-ish miles with a trailer at highway speeds; 40 unloaded, and 40 with 3 1/2 tons of hay on it. I friend of me was with me with a '99 ram 3500 with a Cummins and hauled a similar trailer with similar amount of hay... up a 6% grade I beat him, but not by much. Still dropped to 50 at the top and I was slowly losing ground and would have had to downshift into 3rd if the hill went on too much further(remember- in this rig, more RPM = more torque). Need more boost, that's for sure - I'm only pushing 10-ish. Might get a WW2.

[@quickclutchproductions9212]

MacRobb Simpson if you ever get this firgured out please let me know what it was. Im having a simalar sound and its creeping me out it came out of know where when i just started it one day. Thanks.

[@MacRobbSimpson]

Pretty sure it was/is lifters. It quieted down a *ton* with MMO in there, and is only really noticeable at idle now... which might be an injector imbalance issue. Do an oil change and use 2 quarts of MMO(BTW, if you aren't already, use a FL1995 (7.3 PSD) oil filter - total capacity of a 6.9/7.3 IDI with one of these is 11 quarts of oil). Give it 500 miles, and change it again, use 2 quarts of MMO again, and then change that at 2500 miles like normal. I believe in changing oil at the 2500-3K mark; don't try to extend it. It's not good for the engine(remember, it's not the oil breaking down or additives getting used up - it's simply how much crud can be suspended in the oil).

[@quickclutchproductions9212]

MacRobb Simpson ok thank you very much. I use the fl1995 filter already. I just put a 088 turbo kit on her about 100 miles ago and changed oil when i did that. I have the turbo back out because im redoing the wiring harness because the fuel shut off seleniod wire is broke somewhere so to start the truck i need 12v jumper to the seloniod. But when i ran it i noticed the noise similar to yours. That it was making before (even with turbo kit installed) We have low sulfar fuel around here so mabbye i should try injector cleaner or something first and crack each line when its running to see if it's a bad injector. I will try the mmo and do what you said. Thanks very much for your help.

[@groundtogreen1140]

try running a heavy dose of injector cleaner through it sounds acceleration responsive aint a rod knock those are more thumpy

[@theq4602]

You're probably the expert on these engines (over me), but if it's from down low it would prompt me to check ASAP. You can't ever be sure if some ya-hoo didn't torque something down enough.

[@MacRobbSimpson]

I'm definitely concerned, but it's obvious that this motor hasn't been apart in many years. Not likely for a bolt to *just* come loose from undertorquing it; stuff like that usually comes right out within a few thousand miles.

[@rayonspencer7249]

Sounds like bearings, u should have starred it before u place it in truck

[@MacRobbSimpson]

kzbin.info/www/bejne/a5ebc62he7-qkJo I did start and run it.

[@Rudymbj]

Injector

[@StevenDonaldonYouTube]

Don't they all sound like that?? Lol

[@MacRobbSimpson]

More or less; the lope and clatter. There's a knock to it, though, that other IDIs(and I have... a few) don't. Honestly sounds like a lifter over-pumping and the valve tapping against the piston(these valves are square to the piston, so what would most likely happen is either wear out the guide or eventually have a nice valve-shaped impression in the piston).