I was out wheeling the other day, got stuck in a snow bank... and on the way home my 1990 4Runner 3vze sounded like this...

http://swimaway.net/runner/Memo.m4a


Does anyone have any ideas what that is? Valves?

 

thats a heck of alot heavier than just a valve. any power loss? is that idling or driving?

oh and the mods are not gonna like the title of just HELP!!!!

 

not any real power loss.... I drove it 15 miles home at 55mph. It's loud. That clip was taken at a stoplight then driving away.

I don't know how to change the title

 

don't quote me on that but it really really sounds like a rod knock. Maybe its because its the 3vze but when i spun my rod bearing I was barely able to keep it at 5-10 mph without having it stall out and I have a manual trans. By the sound of the clip yours is an auto?

 

I'll change the title.

Next time ill just delete it

 

It's a manual. I mean, it drove just fine... .just loud as ****

 

Did you pop the hood and see if anything it hitting any pulley or fan? x2 about the rod knock.

 

hmmm I wonder if he bent the oil pan and its a rod hitting the pan? which would explain the sound of a rod knock without a power loss. I wouldn't drive it till you figure out what it is though.

 

Well, I'm down to the cams... I started ripping it apart this morning. So far things look good unfortunately

 

Doubt it. Remember the oil pick up is like 5 inches deep so thats a lot of bending lol.

I would start with the bottom end first, pull the diff, some steering links/ stabilizer and then the oil pan.

 

not too familiar with the 3vz-e as I have the 22r, but I remember grounding out a 70 camaro and bending the oil pan but it bent it to where the flywheel was hitting so it bent the flywheel and took off a few teeth. But I guess that's what happens when you go 70mph on the road and get air born a little lol.

 

that sounds like a spun rod bearing to me...

 

I've done lots of top end work, but no bottom end work. How bad is it to replace a spun rod bearing? What machining will I be doing?

 

that is excatly what my 3.0 sounded like when I spun a bearing. You can pull the pan with the motor in place and check. I did.

My bearing was eaten away to nothing on one of the rods. I needed to keep it on the road so i bought some aftermarket bearing and replace them all. It still knocked but much less and i drove it like that for another 5 months, albeit sparingly.

I changed them all with the motor in place from the bottom.

Then I pulled all that crap out and put in a 3.4 from a 97 Runner. Best decision I ever made was to not put another penny into that 3.0

Here is a link to my old thread asking for help on this as well.