Builds The "Red Rocket" Troopy (2 Viewers)

[theglobb]

“Like transmission popped out” means loss of drive?

Clutch, maybe? How’s the pedal?

Turbo being the newest part makes it suspect

Couldn’t tell a lot from the video about the sound. On my phone it just sounds like a 3B.

No, the big hose from the turbo. It's not attached in your video.

So as far as oil pressure is concerned you have no idea where it has been registering?

Clutch is fine, still moved some when I put it in gear just to see. I was thinking turbo aswell but I really have no clue why it would be causing a knocking from the engine. And yes I took the main intake hose off just to see if it sounded any different. In the video it almost just does sound like a 3B, in combination with all the other noises. But I, like many others on here are hyper sensitive to their cars and if they are making any slightly different noise. This is a significant knock, that gets louder when you go under the vehicle.

 

[theglobb]

Will the vehicle move now under power? If it doesn't it may be something inside the clutch or transmission. Broken input shaft?

In the tow truck right now. I’ll be home in roughly 2 hours. Will update y’all then with what I find and with another video of the noise without as much background noise

 

[Honger]

Clutch is fine, still moved some when I put it in gear just to see. I was thinking turbo aswell but I really have no clue why it would be causing a knocking from the engine. And yes I took the main intake hose off just to see if it sounded any different. In the video it almost just does sound like a 3B, in combination with all the other noises. But I, like many others on here are hyper sensitive to their cars and if they are making any slightly different noise. This is a significant knock, that gets louder when you go under the vehicle.

When you hand revved it did the knocking get worse? Go away?

 

[cruiserdan]

What gear were you in when things started happening?

 

[gilmorneau]

No idea what you have for tools, but maybe pull the glow plugs and try turning it over manually. See if you can find the clunk?

 

[cruiserdan]

Beno had a 3B main bearing cap break in half. If I recall it did knock. That type of a failure/noise would come on suddenly and the engine could continue to run for a short while. A rod knock would be more likely to sneak up on you. It a rod cap broke the motor would grenade fairly fast.

 

[theglobb]

When you hand revved it did the knocking get worse? Go away?

Got worse and louder,

What gear were you in when things started happening?

5th, 100kph

No idea what you have for tools, but maybe pull the glow plugs and try turning it over manually. See if you can find the clunk?

Smart, will do

Beno had a 3B main bearing cap break in half. If I recall it did knock. That type of a failure/noise would come on suddenly and the engine could continue to run for a short while. A rod knock would be more likely to sneak up on you. It a rod cap broke the motor would grenade fairly fast.

Good to know, my guess as of right now would be a bearing. I’ll have to open it up and see. Anyone have any idea where I can get bearings at for a 3B pretty fast.

 

[gilmorneau]

Pull the glow plugs and remove the oil pan. Rotate the motor. If there’s a problem with the internals, you’ll probably find it.

 

[cruiserdan]

If it did pop out of gear for any particular reason, say not fully engauged, you would get a fairly heavy thunk that will really surprise you. And of course you would immediately decelerate. That may have happened at the same time.

 

[Broski]

Sorry for your troubles, At least you were close to home.
It does sound like the bottom end but I'm no expert.

 

[gilmorneau]

If it did pop out of gear for any particular reason, say not fully engauged, you would get a fairly heavy thunk that will really surprise you. And of course you would immediately decelerate. That may have happened at the same time.

H55 trans have been known to pop out of 5th gear when decelerating. Startling the first time it happened to me.

 

[theglobb]

If it did pop out of gear for any particular reason, say not fully engauged, you would get a fairly heavy thunk that will really surprise you. And of course you would immediately decelerate. That may have happened at the same time.

It pops out of 2nd sometimes while engine braking in low range down a steep hill so I know what you mean and how it feels. When I said I thought it popped out of gear I did think that for 2 split seconds cause it felt like something had freed up or become loose and just felt like I was reving my engine in neutral. Then I heard the knocking and figured otherwise, still not taking driveline issue off the list tho.

Sorry for your troubles, At least you were close to home.
It does sound like the bottom end but I'm no expert.

yea only like 90 miles away. Very thankful it happened now and not on the Montana trip. I’m also no expert and I think it also sounds like the bottom end. Guess we will see.

 

[ceylonfj40nut]

If bottom end, it would not rev smoother at higher revs is my thinking.

 

[theglobb]

You can hear it better in this. Still is much more prominent in person though. Gonna try to get oil pan off before sunset

 

[Honger]

Ugh... doesn't sound good. Doesn't sound driveline related.

 

[joekatana]

Been there before a few times with turbo charged 3B's , that's most likely a bearing that let go and unfortunately they do tend to eff up the crank if you keep running it.

 

[theglobb]

Right as the sun set I got the oil pan off... at least no chunks of anything fell out with the oil pan. Tomorrow I'm gonna spin it over by hand, any way I can test for a bad bearing? How will I know if one is bad or not, deep engine stuff is all new to me. Oil looked fine, just black diesel oil, no fancy sparkles or anything

This is where the Red Rocket will now lay for who knows how long, best scenario: it's the bearings that are bad, I get the bearings somehow and replace them in time to take off on the Montana road trip. That being said I don't have my hopes up and I'm not too optimistic for it to be the best scenario.

Will keep yall updated with all of the S U C K as I dive deeper and deeper.

Ugh... doesn't sound good. Doesn't sound driveline related.

Nope, gotta be something internal in the engine.

Been there before a few times with turbo charged 3B's , that's most likely a bearing that let go and unfortunately they do tend to eff up the crank if you keep running it.

Guess I'll see if I messed up the crank or not. It ran for about 3 seconds on the highway before I shut it off entirely after I realized what was making the knock. Started it up at idle for like 15 seconds in the first diagnosis video, and then the most recent video. Maybe a combined 45 seconds of run time total?

 

[gilmorneau]

Forgive if this is all too basic, but you said this stuff was all new to you. Ignore it if it's obvious.

If it's a main bearing cap it'll look something like this (illustration isn't a 3B, but it shows what the part looks like):

The main bearing cap is labelled 14 in the illustration (15 is the bearing). They're bolted to the block and hold the crank main bearings. (block is upside down in the drawing--i.e. you're looking at the bottom of the motor).

If it's a connecting rod bearing, it will look like this (again, illustration isn't a 3B, but you get the idea):

The connecting rod bolts and connecting rod cap will be all you can see/access from the bottom with everything assembled.

You can grab each connecting rod cap and check for play (any would be bad).
You can clean and check the main bearing caps for cracks/fissures (any would be bad).
You can rotate the motor while feeling and listening for unusual behavior and report back.

The problem could also be on the top end (i.e. in a cylinder chamber). If you have a scope you could take a look in each one through the glow plug hole. You'd be looking for a dropped pre-cup, or maybe a broken valve, or maybe vane from a turbo or something. It would be obvious.

You should be able to tell once you start

I've got my fingers crossed that it's not any of this stuff.

 

[theglobb]

Forgive if this is all too basic, but you said this stuff was all new to you. Ignore it if it's obvious.

If it's a main bearing cap it'll look something like this (illustration isn't a 3B, but it shows what the part looks like):
View attachment 3030805
The main bearing cap is labelled 14 in the illustration (15 is the bearing). They're bolted to the block and hold the crank main bearings. (block is upside down in the drawing--i.e. you're looking at the bottom of the motor).

If it's a connecting rod bearing, it will look like this (again, illustration isn't a 3B, but you get the idea):
View attachment 3030807
The connecting rod bolts and connecting rod cap will be all you can see/access from the bottom with everything assembled.

You can grab each connecting rod cap and check for play (any would be bad).
You can clean and check the main bearing caps for cracks/fissures (any would be bad).
You can rotate the motor while feeling and listening for unusual behavior and report back.

The problem could also be on the top end (i.e. in a cylinder chamber). If you have a scope you could take a look in each one through the glow plug hole. You'd be looking for a dropped pre-cup, or maybe a broken valve, or maybe vane from a turbo or something. It would be obvious.

You should be able to tell once you start

I've got my fingers crossed that it's not any of this stuff.

Thank you so much, thankfully I know how it all works together, just not how to test for bad stuff or how much play/what it looks like would be bad. This is a major help. God, I hope the crank isn't messed up.

 

[FJBen]

Man such a bummer!

That definitely sounds like a bearing. Any glitter or metal in the oil or dipstick?

I would hand crank the motor over and look for anything bad underneath. Feel for any play.

Should be able to check on each piston after it starts going down and see if there is play.

@cruiseroutfit can Probabaly get you some quick. Not sure who is on the east coast if that is the problem.