I appreciate the input on the fuel pump, Im not positive there is one, now that I think of it I dont remember seing return line. This is the first vehicle Ive messed with with a manual pump though so I dont know if it doesnt have a return or what, seeing how carbureted systems require so little fuel pressure. Im almost certain its a plug since talking to you, I havent checked the spark since I still had it timed wrong, so I may have fouled them by pouring gas on them and it not firing for so long. When Im out that way Im gonna throw in some new plugs, and get a cigar to find a leak if there is any, and Ill definitely keep you posted. Ill probably make another video.

Well, the pump should have a draw, feed, and return line. The draw line pulls it from the tank, the feed line goes to the carb, and the return allows the pump to function constantly with the motor without flooding or over pressurizing. Those mechanical pumps are kinda ****** , but the way carbs work is by having the float bowls constantly full and fed by the pump so that they can take whatever fuel they need when necessary. The return line is needed to make sure that they have the right amount of pressure and fuel but no more. Since the pump can't actually stop going when the engine is running, the circular flow is the easy fix.

Anyway just food for thought. Here's to hoping it's a cheap and easy fix.

I actually just spun a rod bearing at only 1560 miles on my motor, so It looks like I'm going to be knee deep in my truck again. I'm trying to investigate why it would fail so early without overheating or running dry, so if you find yourself with nothing to do on the internet I could use a second head for researching it. It is a 12 valve SOHC 6G72 from a 1990 Mitsubishi Montero. Those motors were also in the Dodge Stealth, Mitsubishi 3000GT, 1990+ Dodge Ram 50/Mitsubishi Mighty Max, and a few other cars.

Did you torque the clamps that hold the connecting rod and the bearing? I believe you showed me a picture of that. Was the crank turned? I got rid of my neon because I didnt want to put a bearing without pulling the crank out and having it turned. I didnt want to pull the crank period so I gave up on it, but I hear if its not absolutely perfect you can throw a bearing pretty easy.

To spec yeah. I even went over all of them again with the torque wrench to make sure that I got a positive click. The crank was not turned, but I took the whole block and bottom end to a speed shop for inspection and they send the thing back with nothing but honed cylinders. They thought the crank was fine evidently, but I admittedly did not check it myself.

I havent ever heard of it being necessary to retorque or to apply loctite to those, but with a new head gasket youre supposed to open it back up and retorque the bolts down because of thermal expansion. Ive never heard that you had to do that with connecting rods though. Anytime Ive seen someone spin a bearing was because of lack of oil, or the wrong type of oil, maybe a hasty build and didnt get things right, but it sounds like you did. Ive heard of people spinning them if they didnt let their engine warm up to operating temp before revving too hard. Did you turn the engine over with no spark before running it to get everywhere lubricated before its ever under load? Ive heard on rebuilt engines youve got to remove spark and spark plugs so it doesnt fire and theres no compression, or else there are parts of the engine that have no oil, or the oils has a lot of air bubbles which can cause uneven distribution of heat which puts strain on the bearings. Does it have VTEC?

Yeah I cranked it to cycle the oil before its first start. I hit all of my bearings with assembly lube prior to torquing them, and cleaned the block out as best I could from the honing debris. It had full fluids when it happened, and was good and warmed up. Couldn't say about the bubbles when it happened, but I don't think I've ever seen any in my oil. I run 20w-50 non sythetic with a quart of Lucas oil stabilizer thrown in. That should coat everything pretty damn well... No VTEC, it's just regular old SOHC with rockers for the valves, as opposed to cam-on-valve.

Is that the oil it calls for? Ive never seen anything use it so thick. Most modern engines ive seen use 10w-30 or 5w20-30. I substitute a quart of oil with Lucas oil stabalizer whenever I change the oil. Ive always got Lucas in.

Well, when I got the donor car I showed up at the guy's house to find a yard full of them. The guy apparently builds them up and knew just about everything on them. His advice to me was to run the thickest (motor) oil I could find. The oil pressure was barely in spec with the 20w-50, and right in the healthy range with this last change. The lucas took away a mild top end lifter rattle that I never noticed before as well.

Maybe a balance issue? Im not so well versed in v6s or 8s, all my vehicles have been 4 bangers, but I know the crank has balance issues so they put they use the harmonic balancer to help with the compression strokes. If something was off there do you think it could put some extra strain on rod ends? Again, I dont know if these balance issues would affect the v6 as much.

The motor is a very well balanced design, and a bad balance issue would lead to a noticeable vibration and blown main bearings. Those don't make a 'knock' per say, but more of a constant vibration and wild loss in power as it warms up/deteriorates. Still though I hadn't thought of balance issues, and something had to be a primary cause.

I dont mean the balance itself. As I understand it its exhaust stroke is easy, it happens really fast but then it kinda slows down on the compression stroke because it has that much more resistance. The compression stroke would be where most of the strain was between the crank and connecting rod. Again, I dont know all this for fact, just speculation from what little Ive done and more or less studied. Sorry Im not more help, Ive never messed with the block apart from draining coolant and oil pans.

Well, if anything would wreck havoc with rod strain it'd be the power stroke. The only time that the main bolts are under (extra) strain is with the draw stroke, since all of the resistance is from vacuum and ring drag. Either way you have caused me to question whether or not my main bolts have backed themselves out after the rebuild. That would be a ****** rod for sure, and probably a bad crank too. Doesn't explain the top end noise, but we have been wondering of there is some wrist pin damage as well... Oh, and trust me, you wouldn't be a fish out of water with a bottom end rebuild with the experience you already have. You were about 16 bolts short of doing one on your last endeavor lol.

A lot of people are saying a dented oil pan is a big cause of spun bearings, I guess it messes up the screen in the oil pickup.

My pan's fine, although my pickup has no gasquet. A guy on mightyram50.net suggested oil starvage as a result of centripital force pushing all the oil away from the pickup while doing doghnuts.

Well, were you doing donuts?

Yeah lol. I didn't think to look at the pressure but it's a suggestion that I have to ponder.

Here is a pic of my actual pan. The big 'ol dent in the middle is for the front diff, and the low area in the back barely clears my crank mount. The pickup goes down into the bulbous part, but not below the anti-slosh flange that they have. That is at the level of that weld that goes around it.

DJ Khaled? Is that you?

Why though?

That jokes as old as your mothers crusty cunt flaps.

Well you paint us a very vivid image of yourself and your family.

But yours is over 9000.

Ive been thinking about you lately hott stuff.

No rolls, no risk, no game. The **** off my profile.

Say what you want, Ive still got more proof I do than you.

See, you try to sound tough, but your badassery only goes as far as your insignificant brain thinks of it.

*roll 1* If roll becomes "7" (seven), rollers account gets deleted.

*roll 1*

*roll1* **** , I mustve forgotten how to roll.

No, it more or less feels like watching a bunch of one year old monkeys trying to **** a football.

At least Ive done something with my life.

>implying implifications

>implying it isnt
>implying you arent just an emptyregularman

I hope you die because of things.

Oh no, Im not angry, I just sincerely hope the end of you comes to a theater near you sometime soon.

Ive been coming to funnyjunk since 2002.