#1 journal/ main bearing Question

Onefast99gsx · 02-27-2007

Well i removed the crank out of my '99 tonight. Every single bearning and crank journal looked great except for #1. It wasn't the whole bearing either. It was just the half that sits in the cradle. The crank has a very slight bump about the same width as the copper colored part you see in the pics. You can't really feel it with your finger tip. You have to use a fingernail. AND... it's not the whole circumference of the crank journal either. It's just the half of the journal where the piston would be at TDC.

Dam... i wasn't really wanting to get this crank turned. I talked to someone tonight about it. They didn't see it in person but they said they sometimes you can clean up a journals with a really fine grade of emery cloth and a rope and spin it in the lathe. If so, I can have my brother do that at the shop.

Let me know what you think. Motor is close to 100k miles.

Thanks.

rst95eclipse · 02-27-2007

Your pictures aren't focused on the bearing. Rather, it's focusing on the background objects.

Onefast99gsx · 02-28-2007

Ya, it's just a camera phone. It's the only digital camera I got.

Onefast99gsx · 02-28-2007

Machine shop is going to take .010" off crank journals. Only way to do things is the right way.

**Goat Blower** · 02-28-2007

It really depends. Problem is that most people re-nitride the crank, which is spendy. I would definitely try the emery cloth option first, it does work well on most surface irregularities.

Pushit2.0 · 02-28-2007

Onefast99gsx · 02-28-2007

I will call the machine shop up about the re-nitrate to see if it's offered. Is this process similar to chroming a surface?

Pushit2.0 · 02-28-2007

**Goat Blower** · 02-28-2007

Most shops send cranks down to crankshaft supply in NE Minneapolis, they offer re-nitriding. It's about $200 over machining though. Mine was about $320 to have cut and nitrided. If I were doing a street only car, I don't know if I'd re-nitride the crank even though the factory nitriding would be gone. A lot of hi-po factory motors didn't ever come with it.

Onefast99gsx · 02-28-2007

Hi Steve- As a matter of fact I just got off the phone with my speed shop. The crank is cut locally and they send it to a place in the cities. It's probably the same place you're talking about. He's going to call and get the price. He guess-timated $160-180. If it's the same place, then my machinist estimated way low. If it were only $160, then I might do it. Over $200 is getting too much because it's another $60 for the cutting yet.

I like the fact that you didn't just come right out and say, Get it Nitrated! I hit my goal last October. I'm not sure how much I'm gonna wind the piss out of it anyways this summer. Looks like driving a car period this summer is going to be a privledge with fuel going up.

Onefast99gsx · 02-28-2007

I just was researching on another forum and it sounds like the 7 bolts didn't even come nitrated from factory. I don't have enough to back that up as 100% entirely true but I'm not gonna do something in return that wasn't done to begin with from the factory.