My 4Runner Threw a ROD! *pics*
06-27-2009, 01:37 AM
#46
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Looking at the rod bearing surface in that pic it looks like there is a good amount of scoring/polishing from the crank. You normally only see that as a result of very low or total loss of oil pressure.
That's one reason I hate the idiot light and put in a oil pressure gauge.
You were going to change it , did it happen to be low also?
Driving habits?
Oil brand?
Have you looked at any other bearings yet?
Maybe find a wrecked one that is being parted out in good shape
Good luck
06-27-2009, 06:06 AM
#48
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I don't agree with some of the posts here; high RPMs are not the only cause of rod failure. A loss of oil supply to the rod bearing will cause this kind of failure. The scoring of the bearing (in my opinion) is likely a result of this loss of oil supply, not necessarily something that took place over the course of months or years. The engine will continue to run (sometimes without much sign of a problem) for quite some time before something fails. I have seen this before (though not on a Toyota), and it was the result of a sudden loss of oil pressure and eventually the friction between the rod bearing and crankshaft bearing surface put enough stress on the rod that it failed.
My $0.02.
Dan
My $0.02.
Dan
06-27-2009, 06:12 AM
#50
Yeah thats nasty looking. You have had some other issues going on. You said the oil looked good, thats why you cant just look at it and say its ok it has to be tested.
-Good idea. I might just get it tested.
That looks like its been run low or hard a bunch. do you warm it up any in the morning before tearing out?
-It's my wife's 4Runner. No, she doesn't warm it up in the mornings, but neither do I with my own. And no, she's not hard on it at all. She drives more like an old lady!
You were going to change it , did it happen to be low also?
-No ,not at all. Still looked clean too. Just thought about changing it this weekend b/c it had been 5k miles since the last change.
Driving habits?
-Again, picture an old lady driving a buick and that's my wife behind a 4Runner.
Oil brand?
-Don't remember the brand, but it was not the most expensive oil, but it wasn't the cheap stuff either.
Have you looked at any other bearings yet?
-Not yet.
Maybe find a wrecked one that is being parted out in good shape
Good luck
-Good idea. I might just get it tested.
That looks like its been run low or hard a bunch. do you warm it up any in the morning before tearing out?
-It's my wife's 4Runner. No, she doesn't warm it up in the mornings, but neither do I with my own. And no, she's not hard on it at all. She drives more like an old lady!
You were going to change it , did it happen to be low also?
-No ,not at all. Still looked clean too. Just thought about changing it this weekend b/c it had been 5k miles since the last change.
Driving habits?
-Again, picture an old lady driving a buick and that's my wife behind a 4Runner.
Oil brand?
-Don't remember the brand, but it was not the most expensive oil, but it wasn't the cheap stuff either.
Have you looked at any other bearings yet?
-Not yet.
Maybe find a wrecked one that is being parted out in good shape
Good luck
See comments above
I don't agree with some of the posts here; high RPMs are not the only cause of rod failure. A loss of oil supply to the rod bearing will cause this kind of failure. The scoring of the bearing (in my opinion) is likely a result of this loss of oil supply, not necessarily something that took place over the course of months or years. The engine will continue to run (sometimes without much sign of a problem) for quite some time before something fails. I have seen this before (though not on a Toyota), and it was the result of a sudden loss of oil pressure and eventually the friction between the rod bearing and crankshaft bearing surface put enough stress on the rod that it failed.
My $0.02.
Dan
My $0.02.
Dan
I agree! Sucks I had to be the victim of such an occurance.
Last edited by Rock Slide; 06-27-2009 at 06:16 AM.
06-27-2009, 09:07 AM
#51
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Wow that sucks Rock Slide. I think if I were you, I would 1) Call the insurance company, just in case that's covered; 2) Get a good junkyard engine if you can find one; or 3) If all else fails, get a rebuilt motor.
Good luck
Good luck
06-27-2009, 10:47 AM
#53
Called the Ins Co just to check, but they don't cover repairs of this nature.
A few friends of mine said I ought to check out Mogi Ins b/c they cover stuff like this. However, it might be too late for that...BTW, still searching for j.y. engines. Probably the route I'm going to go.
Oil has been changed every 3K-5K miles. Never gone longer than 5K w/o changing it.
06-27-2009, 12:39 PM
#54
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Should of used synthetic oil, haha. I had a buddy who bought a used Mazda 3. One day the engine blew...caused by oil pressure loss. The shop tore down the engine and found sludge on the oil pick up screen. My buddy claims that running GTX cleaned up the sludge and caused the screen to get backed up.
Its possible that your 3.4L was the same way.
Its possible that your 3.4L was the same way.
06-27-2009, 03:20 PM
#55
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You dont need to send it off now and test it it is to late. i you test it on a regular basis say once a year,it would of picked up a trend and you would of been getting readings letting you know something was going on. It didnt happen overnight it was an issue that was going on that you were unaware of. Thats why I push oil test and their importance it will let you know whats going on inside there. Running a 0w oil or a 5w oil can help on cold startups it is thinner at startup so it gets to where it needs to be quiker than a 10w oil hope you get it worked out soon
Last edited by dbcx; 06-27-2009 at 03:23 PM.
06-27-2009, 06:55 PM
#56
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man I feel your pain!! I threw a rod in my 93' Cherokee a few years back. Mine was due to wheeling and attempting to go through about 4 ft of water. Water and oil don't mix to well....
Comments about the insurance taking care of it are pretty funny!! I love it when people suggest insurance fraud. I personally love catching people doing it
.
Comments about the insurance taking care of it are pretty funny!! I love it when people suggest insurance fraud. I personally love catching people doing it
.
06-27-2009, 07:36 PM
#58
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man I feel your pain!! I threw a rod in my 93' Cherokee a few years back. Mine was due to wheeling and attempting to go through about 4 ft of water. Water and oil don't mix to well....
Comments about the insurance taking care of it are pretty funny!! I love it when people suggest insurance fraud. I personally love catching people doing it.
Comments about the insurance taking care of it are pretty funny!! I love it when people suggest insurance fraud. I personally love catching people doing it
.
06-27-2009, 08:01 PM
#59
i think someone missed too many old changes... you gotta change oil regularly. was you wife having it done on her own.... not to be mean or ofensive but i know women they will not do things they are supose to sometimes. i think she skipped oils changes and told you she was doing it...unless your at fault and did not do it.....she hit a huge puddle or something a suck water....unless its 1 out of 1,000,000,000,000 chance you got a defective motor i think its little care to truck from owner.... 5VZ's don't throw rods on purpose EVER! HOWS THE WARRANTY!!!! Call Toyota and see what they think.
Last edited by Kiroshu; 06-27-2009 at 08:05 PM.
06-27-2009, 09:10 PM
#60
i think someone missed too many old changes... you gotta change oil regularly. was you wife having it done on her own.... not to be mean or ofensive but i know women they will not do things they are supose to sometimes. i think she skipped oils changes and told you she was doing it...unless your at fault and did not do it.....she hit a huge puddle or something a suck water....unless its 1 out of 1,000,000,000,000 chance you got a defective motor i think its little care to truck from owner.... 5VZ's don't throw rods on purpose EVER! HOWS THE WARRANTY!!!! Call Toyota and see what they think.
And no, she didn't hit any water...it's been dry here for a week. Only water around here is the water in the lakes.
No waranty either. I called Toyota...they said they've seen this happen once or twice before.
