Ahhhh! Spun bearing!!!! i need help!!!!!!

[#1StunnaVic]

ok i know the correct way to do this is to rebuilt the motor but to be honest i don't have to funds to do this and i need a quick fix. how many guys have done this? i want to drop the oil pan see which bearing is spun and change them if it isn't in bad shape.
what happened is i checked the oil yesterday and it was a low. i put 3 quarts in it and it was full yet my oil pressure was stil low. i heard the slightest knocking sound but didn't think anything of it. 82 miles later the car jerked twice then on the 3rd it completely stalled out. i pulled over to the side of the road and the temp spiked all the way up. i thought the head gasket was blown even though it was recently done. i sat there with the car off for about 30 minutes and then attempted to start it and it just went clank, clank. and then stalled again. the temp didnt rise at all. i attempted to start it again and it did start. u couldnt hear the knock at idle but if i just touched the gas a little bit it became quite obvious. i shut the car off and had it towed back to school. 2morrow im gonna drop the pan and look at the damage.

if the crank isnt too messed up im gonna check the rest of the bearings and change the bad one. flush a ton of oil through the motor and hopefully that will take care of it. like i said i know this isnt the right way but im on a budget and this this is my only mode of transportation. i need a quick fix for this car so i could at least get it round for awhile. has anyone had any luck doing this? i need advice!!!!! im about ready to give up and sell this car..... i love supras but they don't love me back and my pockets don't like it.

 

[Mrbaboon]

Bad idea.

Sounds like you are prepared to waste your time. I had this happen to me and not only was my crank bent (you cant tell by looking), 2 of my rods were out of round.

In summation:

You're going to have to pull the motor.

 

[Idealsupra]

:3d_frown:

 

[cnewingham]

3 qts is a little more than just low. I hate to say it, but there is no cheap fix to rk.

 

[#1StunnaVic]

is there anyone out there that has tried this and worked for at least a little while??????

 

[Idealsupra]

sell the car buy a scooter

 

[Adjuster]

Rebuild, rebuild and low oil no more.

Infact, run your car one quart high, and you can't go wrong the second time around. (Do monitor your oil levels, especially if you have a known leak..)

No amount of trickery here will save what you described.. you need a rebuild.

 

[theKnifeArtist]

http://www.supramania.com/forums/showthread.php?t=39754
there ya go, hehe.

 

[xarewhyayen]

:runaway:

 

[Adjuster]

That is a nice write up, and in a pinch, it would be better than nothing...

Here is the problem. As the writer of the oil pan drop, bearing replacement thread noted, his bearings seemed to have one that failed, and then took out the other..

Some of that debris is for sure trapped in the oil feed passeges in the crank.. and as long as it's small enough to get embeded in the new bearings, he will be fine.

If not, it will be short lived.

Not hating here, just pointing out the reality of this type of repair. It is generally temporary, and he was very methodical.. nice work.

Pulling the plugs on each oil passege from the failed bearing to the end of the crank would not be a bad idea. (They are a royal PITA to get out, and back in. I found using bolt easy out's was the best way to remove the staked allen head plugs.. they just strip, so you lightly tap in an easy out, and they come right out.. (You have to replace them with new ones, and use red locktite...! You don't want them ever to come back out.)

Short of that, some brake/carb cleaner shot up there into those oil drilled passeges might be OK too. (Use the tube, and an entire can... cheap insurance... and you might be shocked to see what comes out..)

 

[#1StunnaVic]

im thinkin if it would just be better to buy a new jdm motor. or just park the car and save for the 1j swap. but money is the major thing holding me back here. plus a 1j swap isn't exactly easy to do especially for someone who has never done it. who know how long that could take. exactly what needs to be done for a 1j swap anyway??? i know that some connectors need to be changed but im very unclear on exactly what. i don't even know if it would be worth it to try and save this motor. i honestly just wanna get it running good enough to the point that i can drive it home and just a bit till i get a daily driver. then i'll either park it or sell it. dunno yet...... like i said i love supras but they dont love me back.

 

[#1StunnaVic]

by the way is there anyone is the new york city area that would be willing to help me out along the way in case i had trouble? someone very knowledgable about supras?

 

[TurboWarrior]

If you are unsure about what you're capable of then sent the block out to be rebuilt/fixed. It may be a little complicated for you. Plus the block probably needs machining anyway. The head does definetley.

 

[#1StunnaVic]

im quite aware of the fact that i probably will need to send out the block and head to be machined if i chose to rebuild it. however my issue is if i can repair the spun bearing or not. and if not how much am i looking at for a new jdm 7mgte motor that i can just drop in and drive the car. then maybe i could find the time and money to slowly rebuild the old motor once i have the car running again. my main concern in gettin the car running again.

 

[TurboWarrior]

Assuming the JDM motor is good you should still do the headgasket before you install it. They go easily on those motors since they've been sitting so long.

You're looking at 1000 give or take i think. To redo the block and head depending one how far you go id say.

Get a quote from a machine shop before you start if the money is an issue.

 

[LordLo]

Or,

Patch up the engine and try to run it, but also order a engine on the side.

 

[stillboostin87t]

I recently got my 7mge, and after picking it up, i drove it to my mechanic. He looked at it, started it, and 10 minutes later told me that i had a spun bearing. Needless to say im planning on a full rebuild, subs, amp, everything. With this car there is no cutting corners. Its either you go all the way, or get used to seeing your car sitting in your driveway.... sorry dude

 

[starscream5000]

however my issue is if i can repair the spun bearing or not. and if not how much am i looking at for a new jdm 7mgte motor that i can just drop in and drive the car.

What is this, "new jdm 7mgte" that you speak of?

 

[staticpat]

Here is the problem. As the writer of the oil pan drop, bearing replacement thread noted, his bearings seemed to have one that failed, and then took out the other..

Some of that debris is for sure trapped in the oil feed passeges in the crank.. and as long as it's small enough to get embeded in the new bearings, he will be fine.

I was more worried about debris finding its way into my turbo. This was a chance I was willing to take, as it is not my daily driver and much time but not much money was invested. I flushed the oil out 3 times in the first 500 miles. Now I have a few thousand miles (including dyno pulls and dragstrip time) and have no problems yet.

This guy's situation sounds alot worse than mine, I had a very quiet tap in certain range, not a loud knock always. I don't think a band-aid will work here. He could have bent rods/crank etc.