Bearing Measurements
Bearing Measurements Couple questions on measuring bearings. I have a set of eagle H beam rods. When the rod caps are installed and torqued there is no measurable difference in the bore between the vertical and horizontal measurements. However, once I install the bearing and torque the caps I get about .0015" difference in size from horizontal and vertical measurements. The bearings are king xp standard size bearings, why the difference in the bearing measurement? Do the rods need resized? Or do i need to get an undersized set of bearings? How do I get this fixed?
Secondly, I was measuring the blocks main journals. I installed ARP studs, and when measuring the journals it is about .005" difference between the vertical and horizontal measurements. This seems like a HUGE difference just from installing studs. Is this typical? I asked them to check this but apparently they forgot. Can you hone out that much? or do the main caps need cut to bore the journals?
for the clearances I was thinking about .002" on the main and rod bearings, is this what they should be set to?
thanks in advance for any and all help you can offer.
Secondly, I was measuring the blocks main journals. I installed ARP studs, and when measuring the journals it is about .005" difference between the vertical and horizontal measurements. This seems like a HUGE difference just from installing studs. Is this typical? I asked them to check this but apparently they forgot. Can you hone out that much? or do the main caps need cut to bore the journals?
for the clearances I was thinking about .002" on the main and rod bearings, is this what they should be set to?
thanks in advance for any and all help you can offer.
Couple questions on measuring bearings. I have a set of eagle H beam rods. When the rod caps are installed and torqued there is no measurable difference in the bore between the vertical and horizontal measurements. However, once I install the bearing and torque the caps I get about .0015" difference in size from horizontal and vertical measurements. The bearings are king xp standard size bearings, why the difference in the bearing measurement? Do the rods need resized? Or do i need to get an undersized set of bearings? How do I get this fixed?
Secondly, I was measuring the blocks main journals. I installed ARP studs, and when measuring the journals it is about .005" difference between the vertical and horizontal measurements. This seems like a HUGE difference just from installing studs. Is this typical? I asked them to check this but apparently they forgot. Can you hone out that much? or do the main caps need cut to bore the journals?
for the clearances I was thinking about .002" on the main and rod bearings, is this what they should be set to?
thanks in advance for any and all help you can offer.
Secondly, I was measuring the blocks main journals. I installed ARP studs, and when measuring the journals it is about .005" difference between the vertical and horizontal measurements. This seems like a HUGE difference just from installing studs. Is this typical? I asked them to check this but apparently they forgot. Can you hone out that much? or do the main caps need cut to bore the journals?
for the clearances I was thinking about .002" on the main and rod bearings, is this what they should be set to?
thanks in advance for any and all help you can offer.
Second question, some say that's normal and some say that is excessive. Usually the ARP studs cause some distortion which requires a line hone. Yes you can hone that much out, but the correct way is to cut the caps you bring the bore undersized, then hone it out.
Last question, clearanced depend on a number of variables. You haven't even mentioned what block or crank will be used or even what application the engine will be used for. For most mild street engines, .002" would be fine. For high power stuff, usually you want to be looser.
Last question, clearanced depend on a number of variables. You haven't even mentioned what block or crank will be used or even what application the engine will be used for. For most mild street engines, .002" would be fine. For high power stuff, usually you want to be looser.
The block is a 2002 LS1. I am installing a 4" eagle crank and eagle 6.125" rods with dished cp pistons. The compression will be around 9.7:1 and is being setup for turbo application. I'd like it to be able to handle and push some pretty big power numbers. If i don't make 800rwhp then I'm going to be very disappointed.
Thank you very much for the help. The machine shop said the rod bearings doing that was normal also, i just wanted to make sure as that seemed like a lot and don't want to chance it.
The block is a 2002 LS1. I am installing a 4" eagle crank and eagle 6.125" rods with dished cp pistons. The compression will be around 9.7:1 and is being setup for turbo application. I'd like it to be able to handle and push some pretty big power numbers. If i don't make 800rwhp then I'm going to be very disappointed.
The block is a 2002 LS1. I am installing a 4" eagle crank and eagle 6.125" rods with dished cp pistons. The compression will be around 9.7:1 and is being setup for turbo application. I'd like it to be able to handle and push some pretty big power numbers. If i don't make 800rwhp then I'm going to be very disappointed.
It depends on the rods. Callies rods are good about clearance with stroker cranks. It helps to have a 2.0" journal rather than a 2.1" as well.
Thank you for the recommendation. I already purchased the meiling high volume 10296. I will have them open up the mains slightly more.
If the rod bearings are oval shaped, which direction should I measure for rod clearance? Do I take the measurement on it straight up and down, then compare that measurement to the crank journal readings?
If the rod bearings are oval shaped, which direction should I measure for rod clearance? Do I take the measurement on it straight up and down, then compare that measurement to the crank journal readings?
Thank you for the recommendation. I already purchased the meiling high volume 10296. I will have them open up the mains slightly more.
If the rod bearings are oval shaped, which direction should I measure for rod clearance? Do I take the measurement on it straight up and down, then compare that measurement to the crank journal readings?
If the rod bearings are oval shaped, which direction should I measure for rod clearance? Do I take the measurement on it straight up and down, then compare that measurement to the crank journal readings?
