Where is the oil drilling hole on a con-rod?
The oil drilling hole is a hole that is present from the small to the large side of the con-rod (riffle drilled). Thanks to this additional oiling, the piston pin has a considerably longer service life. As with all performance levels, bolts and studs should be replaced. Since many bolts are stretch bolts, they cannot be reused.
Where are the conrod bearings located on a car?
We also have access to the Mahle, Kolbenschmidt (KS), AE & Vandervell range. These shells are located at the larger end of the connecting rod. These shells may have certain characteristics such as oil holes & locating tags. The conrod bearings are made of different composite metals such as Silicon Aluminium, Lead Copper, Copper Silicone Silver.
What’s the end goal of connecting rod reconditioning?
The processes used to recondition this engine component may vary a little from one rebuilder to the next, but the end goal is always the same – straight rods with round bores. Sounds simple, but like anything worth doing, there’s always more to it than you think.
Do you have to broach a rod before installing bushing?
If you heat the rod to install the new bushing, you should allow it to cool before you expand the bushing with this broaching technique. Then grind the cap to the correct center-to-center dimension and hone the big end and install new rod bolts.”
Do you have to have a connecting rod inspected?
Regardless of a connecting rod’s application (stock, performance or racing), prior to rebuilding or engine assembly, all rods must be inspected, measured and reconditioned before installation. With the cap fully installed onto its rod, measure the rod big-end.
What kind of Checker do I need for a connecting rod?
A twistin the beam throws the big-end bore out-of- plane with the small end. To actually inspect a connecting rod for bend and twist, you’ll need a rod checker (often called a rod alignment checkeror a bend and twist checker). When checking for bend, place the big end on the checker’s bore support.
How big of a bend do you need for a connecting rod?
OE specs for bend tolerance vary, but generally, maximum allowable bend should be limited to .001 in. per inch of rod length. If the rod is bent beyond this maximum, this will squeeze oil clearance on one side of the rod bearings, creating a “tapered” oil clearance issue.
Which is the big end of a connecting rod?
Big-End Bore The lower end of a connecting rod (the end that houses the rod bearings and attaches to the crankshaft) is com- monly referred to as the big end, while the upper wrist pin end is commonly called the small end.