Ready to call it quits...

[Jspec7m88]

I've had what I thought to be Rod knock for about 2 and a half months now...
For the last 2 weeks, I have had 2 different people at a performance store that previously owned Supra's said that I dont actually have Rod Knock..but my main bearings(crank) need replaced. I am no where near experienced enough to pull the motor of my Supra myself so I cannot check to see if it is rod knock or not. I've been driving my car for almost 3 months now with this light and rapid knocking sound between 2000-2500 and in some cases of frusteration, have went a little throttle crazy, but never have went over 4500... I don't have the extra money to have someone pull the motor for me and come to find out it isn't even rod knock...I'm at a panic of what to do right now. With other previous cars I've owned, at about this time I get this feeling, I just sell it and work with something new...but I DO NOT wan't to give up on this car. I've invested/experienced/lived way to much in this car to get rid of it. Are there ANY options off hand that I can do to either check if I have rodknock FOR SURE without tearing it apart...or...I dont know.
Just, anything...any feedback would be nice.
-Jeff.

 

[Johnny Dangerously]

what you need is to find some fuckin smart supra friends to give you their advice. i mean locally.


but do this..go buy an automotive stethascope...listen to where the sound is coming from.

if its bottom end, then guess what..its time to take her apart and find your problem. what is the problem 98% of the time? rod bearings were starved of oil and need to be replaced...then cause of that, you have the inspect the entire motor for scoring and that takes machine work.

are u good at wrenching? are you good at reading service manuals? both arent hard if you have a lil bit of patience...use the time you have that u would use complaining and losing hope, use that shit towards patience and clear thought process of how you are gonna solve this problem.

 

[Jspec7m88]

I do a lot of wrenching, but I tend to have very little patience...and then I start breaking stuff. I could probably go through a manual and step by step type thing, but there are just some parts that I dont know of and that is what scares me. There are a few Supra guys around here...but again, money. I don't know, man. I just now got back from a nice little 30 minute drive..no particular place, just driving and thinking...there is no way I could give this up. I just freak out because there are performance parts that are being thrown in my face for crazy deals that I just can't get because I need to fix my motor before I can start adding HP. Ugh....

 

[mkiiSupraMan18]

Freakin pansy... suck it up.

Lemme get the ol' 82 going, should be sometime toward the end of the week, and I'll come up and give ya my "expert" opinion. Hell, I'm gonna be doing the same exact thing (only on a 7mge) and I'll tell ya how hard it is. I know changing rods/mains is EZ. If you can pull the motor you can change the bearings. I'll get some prices on machining/bearings for you too, or atleast an idea. Anyway, give me a call toward the middle of the week and I'll come up.

 

[Jspec7m88]

That'll work.

 

[Godspeed]

yeah someone give this guy a hand. i know how frustrating it can be not knowing where to start. im definitly gonna need some help when i get my car here. im glad we have these guys on the forums to help.

 

[Jspec7m88]

yes, frusterated is the perfect word to use. I'm not necessariy giving up, but I honestly just don't know where to start because I'm so overwhelmed with like 50 different things that I need to do.

 

[Godspeed]

dont feel bad bro i just traded my supra 1g tt for a 7mgte that needs a rebuild because of rod knock. i live in nc and its in maryland and i dont know how im gonna get it here. and i have to rebuild it myself. there arent many guys around this area on here to help. so i know what you mean.

 

[Dirgle]

Get a used oil analysis; this will help greatly to determine the condition of the inside of your engine with out tearing it apart. If your bearings have gone the way of the buffalo, then there will be a high concentration of metal particles in your oil.

Check around with local shops to see which ones can do an oil analysis for cheap. The shop around here was doing them for $25.

 

[Jspec7m88]

Thank you, dirgle!

 

[mkiiSupraMan18]

psshhh... Hunter Toyota sez:
"That aint no rod knock"

Hunter Ford released a statement later saying:
"Nah, sounds like a lifter went flat"


Good news, and we sorted everything else out. All in all, I'd say we made a lot of progress/whatever. As long as it made it home, anyway.

 

[lagged]

Get a used oil analysis; this will help greatly to determine the condition of the inside of your engine with out tearing it apart. If your bearings have gone the way of the buffalo, then there will be a high concentration of metal particles in your oil.

Check around with local shops to see which ones can do an oil analysis for cheap. The shop around here was doing them for $25.

yes, i ask my self all the time why more people dont have their oil analyzed.

 

[mkiiSupraMan18]

Will getting your oil tested fix the problem? No... Not that it's a bad idea or anything, but if the engine is gonna need pulled to fix whatever is wrong, why not just pull it and have a quick look-see? It's not like pulling engines is super tough, sure if it's your DD, do the oil test thing, then pull the motor when you find out it's a bearing...

Can someone give me an example of a printout that you would get w/ the oil analysis?

About the only thing I could find that looked like something I would get...

http://www.hydraulicrepair.net/images/OilAnalysis_Report_lg.jpg
and
http://www.greenhybrid.com/share/files/8/7/2/05HAH-Break-inOilAnalysis.gif

OK, I got some stuff in there... then what? I'm not campaigning against the tests, I seriously would like to know more and hear some first hand experiences w/ it and how it helped/hurt...

 

[IJ.]

Don't let the bitch win !
(it will damage you for the rest of your life)

 

[Jspec7m88]

I made it back home, lol. Very little Compressor surge and that's only at low boost...Runs great and after leaving Greensburg, we were back in Shelbyville in 15 minutes. A Supra on the Interstate = :squirt-mo Thanks for the help, Matt. 'preciate it.:naughty:

 

[jetjock]

Don't let the bitch win !
(it will damage you for the rest of your life)

He probably doesn't want to hear this but what'll damage him for life is an inability to avoid becoming emotionally attached to inanimate objects. It's just a car. His first responsibiltiy is to his financial well being. Those who lose sight of this are doomed to slave their entire life away.

 

[bigaaron]

He probably doesn't want to hear this but what'll damage him for life is an inability to avoid becoming emotionally attached to inanimate objects. It's just a car. His first responsibiltiy is to his financial well being. Those who lose sight of this are doomed to slave their entire life away.

I agree. If his Supra is a source of frustration then he should just sell it and get a more reliable car. Mk3 is a good project car for people who enjoy working on them, or people that have a large amount of spendable income to put into them. It is not a good car for students.

 

[lagged]

Will getting your oil tested fix the problem? No... Not that it's a bad idea or anything, but if the engine is gonna need pulled to fix whatever is wrong, why not just pull it and have a quick look-see? It's not like pulling engines is super tough, sure if it's your DD, do the oil test thing, then pull the motor when you find out it's a bearing...

Can someone give me an example of a printout that you would get w/ the oil analysis?

About the only thing I could find that looked like something I would get...

http://www.hydraulicrepair.net/images/OilAnalysis_Report_lg.jpg
and
http://www.greenhybrid.com/share/files/8/7/2/05HAH-Break-inOilAnalysis.gif

OK, I got some stuff in there... then what? I'm not campaigning against the tests, I seriously would like to know more and hear some first hand experiences w/ it and how it helped/hurt...

check out www.farragutmarine.com and click on whatever sayslube oil analysis.

itll tell you if you have excessive bearing wear, any oil contaminants, water mixing withtheoil ( even a miniscule amount ) etc etc, the list goeson.

the point is, even if your car is running fine, a lube oil analysis can tell you what EXACTLY is going on in there. why dump money into a motor with an inaudible rod knock that might only show it self a fewhundred miles down the road? (** AFTERyouve spent 2 grand on your new turbo set up...)

 

[mkiiSupraMan18]

Huh.... I figured it just showed that there was metal in there...

So, now I'm curious. Would this be something that would be recommended after say... installing a JDM engine? Or putting rods/mains in?

 

[IJ.]

My post was a bit TiC guys