OK, So my oil pump failed and I spun a couple main bearings... The #1 Bearing is fine #2 Completely gone #3 Tore up, but still there.. 4# Bearing is fine... The rod bearings all seemed ok. Piston walls looked fine and the pistons themselves looked fine. However there seems to be metal shavings throughout the entire oil system. Knowing this I'm assuming the crank, and rods are toast for sure. I don't know if the valvetrain was damaged at all, but there were shavings in the head....
My qusetion is this. What should I do with this motor?!? I am not made of money, keep in mind. NO TODA/HKS stroker kits for me....Should I build it up with OEM? Bulid it up with some aftermarket? Plain out junk it? Lets say I have about 2-3K to play with. What do you guys suggest? Its a REDTOP BTW.
True SR Gurus, I spun a main bearing....
-
SpeedRacer1
- Posts: 3144
- Joined: Fri Jul 26, 2002 7:44 pm
- Car: 1990 240SX, G35
If I were you, I would just junk it and get a new (used) long block. They run about 800-1000 in the US (mainly Cali). You have to figure that most of the OEM parts you would be replacing will end up costing a grand and a half or so, and assuming you put it back together yourself you would be saving some money. It really depends on what you plan to do with the engine later on, if you want to eventually build it up then by all means by a couple aftermarket parts because doing bottom ends takes alot of time and work. As for the valvetrain shavings, they were probably just there because of the oil circulation, and I bet there are plenty of shavings in the oil pan, right? What did you do to spin the bearings?
You can do a good set of forged rods and pistons for $2-3,000. If you really think about it, you can do quite a bit with 3 grand. Eagle rods, a mid-priced forged piston, stock crank out of SR20DE powered Sentra....damn, you'll even have some cash left over for a nice beefy head gasket and some valve springs if you want....and if you really work with your money, maybe even a set of cams.
-
Nismo_Freak
- Posts: 10314
- Joined: Wed Jul 24, 2002 10:42 pm
- Car: 89 Nissan 240SX
Ealge rods aren't that great... I'd suggest a good Carillo, Crower, or Pauter Rod set w/ ARP bolts. Nismo, Tomei, and Power Ent. do upgraded main and rod bearings for the SR20DET, if you have an S13 you can replace them with these.
If you decide to keep the crank you will need to have it machined and re-hardened. Nismo offers different grades of main bearings for this reason. The grades are for different degrees of resurfacing on the crank.
I'd just do a good build-up so your not faced with this problem again, and so that you can fully utilize that T51 turbocharger if that is indeed what you are running. Head mods are your friend with that turbo
If you decide to keep the crank you will need to have it machined and re-hardened. Nismo offers different grades of main bearings for this reason. The grades are for different degrees of resurfacing on the crank.
I'd just do a good build-up so your not faced with this problem again, and so that you can fully utilize that T51 turbocharger if that is indeed what you are running. Head mods are your friend with that turbo
-
Cyberkreig
- Posts: 3048
- Joined: Sun Sep 01, 2002 4:40 pm
- Car: 1993 Nissan 240SX SR
- Contact:
Nismo_Freak wrote:I'd just do a good build-up so your not faced with this problem again, and so that you can fully utilize that T51 turbocharger if that is indeed what you are running. Head mods are your friend with that turbo
HA HA! I wish I had a T51R...Don't you think thats a tad big for an SR? I would need the head mods because I would need as many RPM as I could get out on an SR to use that turbo.... I was thinking of getting the T67 or T78 kit though...
EVERYONE thanks for the great advice...Now to just decide....
-
Nismo_Freak
- Posts: 10314
- Joined: Wed Jul 24, 2002 10:42 pm
- Car: 89 Nissan 240SX
I was about to say... that's a bit overkill on even a 2JZ, lol. Too each their own though, which is why I didn't mention anything. It's also why I mentioned head mods are your friend hahah. You'd get like 200whp with a cam upgrade LOL.
Cyber, I highly doubt Carillo's aftermarket line of rods and any contract components would be in the same range. Also, it would be a little odd for Nissan to contract internal components out of the US when there has to be plenty of manufacturer's in Japan. However JUN does contract it's internals.
Cyber, I highly doubt Carillo's aftermarket line of rods and any contract components would be in the same range. Also, it would be a little odd for Nissan to contract internal components out of the US when there has to be plenty of manufacturer's in Japan. However JUN does contract it's internals.
-
Cyberkreig
- Posts: 3048
- Joined: Sun Sep 01, 2002 4:40 pm
- Car: 1993 Nissan 240SX SR
- Contact:
-
I H8 UR DSM
- Posts: 3196
- Joined: Fri May 24, 2002 8:06 am
- Contact: