So pretty much, the notches in the journal are opposite the number. Paul . 8 Answers. Joined Jul 7, 2003. And both sides of the rods and bearings are the same for my build. its the direction of the rod versus the direction of the piston that I am trying to figure out. Or , which side of the rod faces the other rod that is on the same rod journal. if there are cam oil holes, they all aim inward/upward. 3 embodiment also includes at least one conventional tang structure to prevent axial movement along the direction of the central bore axis C. 3 shows a component 300 of a bearing assembly embodiment including a single notch-like groove 342 and corresponding tang 346 of a bearing shell 313 as described above relative to one of the grooves and tangs of the embodiment of FIG. T ... With aftermarket (Modmax H-beam) rods, it doesn't matter which way the bearing tang faces, correct? Answer Save. In other words, the rods can go in with the tangs facing either side of the motor, and it doesn't matter? The rods have a serial number on them, both side look the same. The connecting rod bearing shells are precision made and are of the replaceable type. 2,050 87. May 17, 2014 #5. swflastang05 Back for More. The tangs in the rod bearing only engage the cap in one direction, so when the rod is upside down (with the alignment pin at the back) the direction of engagement is flipped (seen in my last pic). Clicking this will make more experts see the question and we will remind you when it gets answered. Connecting Rod Bearings for 14 L and 12.7 L Engines The connecting rod bearing caps are numbered according to the cylinder position with matching numbers stamped on the connecting rod tang side. 1 Answer. Also, pay attention to the chamfered edge on the rods. GSXeclipsePSI Proven Member. Look a the picture, the tangs are all on the same side of each rod, and each cap is on the same direction it came. When the clearance between the shell and the crank is too tight or there's not enough oil in the bearing interface, then the crank can grab the bearing and try to spin it in the rod. the wider chamfer should go to the crank and the less chamfered sides should go rod-to-rod. Which direction should the c/rod bearing lock tang be pointed? The way I consider it, and opinions WILL vary, is that the tangs may cause a slightly compromised support area whereas the full bearing support will potentially offer a little more support. Note: Before installing the bearings, inspect the crankshaft journals. Relevance. Print this page; Share this page × Ad. Kabooom! The main bearing "tangs" are located opposite on all 4 rear mains, this is number's 2, 3, 4, and 5. Just make sure that when your piston is installed on the rod, that the tangs are on the exhaust side of the piston. Oct 1, 2009 #1. The little notches in your bearings and in the rod journals need to face TOWARDS the crankshaft. the bearing notches should all go towards the oil pan rail(i think, that's how this rod i have in my hand is anyway). fletch. I think the chamfered ( machined ) edges face away from each other ? Premium engines (identified by the letters "PK" or "BK" in the fifth and sixth positions of the model number) built on or after March 16, 1998 use pistons with forged steel domes, aluminum skirts, and closed-end connecting rods. Thus, the rods on the left bank looking at the pulley end should have their bearing tangs up and the rods on the right bank should have the bearing tangs down. Also, there will be a number stamped on the rod close to where it meets the cap, and that number should face OUTWARD. Which direction do the rods on a smallblock chevy face ? The long end of the connecting rod must be assembled on the intake or camshaft side of the engine. The rod caps are all on correctly, im not that much of a newb. GOSFAST Expert Posts: 604 Joined: Tue Jan 08, 2008 12:09 pm Location: Long Island. Alexander Mimun. Please correct me if I'm wrong. Want Answer 0. Main Cap Positioning. 565 6. Rod And Main Bearing Installation With King Engine Bearings By Kyle Kitchen April 28, 2017 Engine assembly is one of those processes that understandably terrifies a majority of the DIY-type enthusiasts out there, and for good reason. is the chamfer different from one side of the rod to the other? Section 1.19 Piston and Piston Ring. Post Aug 14, 2005 #3 2005-08-14T06:24. Note how this Calico main bearing extends slightly beyond the hous¬ing bore. fletch. This is in a 4.6 Windsor block with Cobra crank. 20 Posts . Then I put a "F" on it with a sharpie. The upper bearing … Step 6: The crank is positioned at the bottom of its throw for the corresponding rod installation. 2.2 gm torque specs head, rod bearings, direction of bearing tang 1996 s10 Posted by tnash682 on Jun 30, 2010. New Port Richey, Florida . FIG. Connecting Rod Bearings for 14 L and 12.7 L Engines. some of the tangs are facing the exhaust side, some are facing the intake side. The side with more chamfer should face the crankshaft. Rod direction? Lubricate the bearing shell with clean engine oil. Jump to Latest Follow 1 - 9 of 9 Posts. After ensuring the bearing shells and their seating surfaces on the rods are clean, install the lower connecting rod bearing shell into the rod cap and the upper shell into the top portion of the rod. There is a tang on the rod and one on the cap. If you look at the big end of the rod with the bearings installed you'll see the bearing doesn't seat … These two notches are always on the same side of the bore. Both bear¬ing shells have a small amount of crush built into them. The new connecting rod big end bearing is 2.000 inch diameter and the width of the big end of the connecting rod is 1.120 inch. Non-premium engines use pistons with cast iron domes and skirts and open-end connecting rods. Posted by GSXeclipsePSI, Oct 1, 2009. You can use your shop vice with non-marring aluminum or brass inserts in a pinch. Top. The rod is also machined to locate the bearing's locating tang to also provide a clearance on the chamfered side. Level 3: An expert who has achieved level 3 by getting 1000 points. Do NOT replace one connecting rod bearing shell alone. andy p.s. Rod bearings are not grooved because they are fully loaded all the way around. CAT C13 Connecting Rod Bolts step 1 = 130 +- 7 Nm, 95 +- 5 lb.ft step 2 = + 60 degrees. … Rod and cap mating surfaces must be clean or engine damage can occur. 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