QuarterMileMaster

I just bought a '98 Cobra with 50k on it. I bought it for cheap, because it makes an EXTREMELY LOUD clunking/banging noise, maybe a little faster than every other second. When I say loud, I mean it is freaking LOUD. Otherwise, the car idles fine. It seems to be coming from the lower end of the motor. The guy I bought it from says he thinks it needs a crank, I (as well as some friends) think it's a rod bearing. I plan to do a complete rebuild, but first I'm wondering....

-What's your guess on what the noise could be??

-Any recommendations on rebuild kits, or tips from those of you who have done one?

97targa

First off, I wouldn't run it anymore because you can throw a rod if that's the case and ruin the block and maybe more! Sure I suppose you could just replace a rod bearing, but who knows how much damage the crank already has!

QuarterMileMaster

Ok. I haven't ran it at all and on't plan to. I plan on doing a new crank, and replacing the rod bearings. Do you think this will be enough work to fix it and make it reliable, or do I need to do more?

NJcobraEkul

drop the oil pan look for metal flakes in the pan. there is a magnet in the pan for such a thing take a look. do not run the car on till u take a look. is the car rapping is so u spun a bareing on the crank.

NJcobraEkul

o yea rapping in like while the motor is runing rap rap rap rap sound then it s a bearing cheack for the metal flake

NJcobraEkul

let us know

QuarterMileMaster

I will definitely let you know what it was and how it turns out. I'm anxious to start working on it, but it'll be another week at least.