Lycoming Connecting Rods

My o 290 manual calls out 78030 s as the correct part.

Lycoming connecting rods. Lycoming crankshaft connecting rods lycoming crankshaft connecting rods. Lycoming connecting rods. This service instruction shows that certain piston part numbers are designed to fall within a specified standard weight range. This is a set of three 3 each lycoming connecting rods.

Use of a connecting rod stamped with an s will ensure that the weight match between rods is always within the tolerance allowed by the lycoming specification for that particular part number. Contact lycoming engines product support at 1 877 839 7878 toll free or 1 570 327 7222 or email. One 1 rod appears to have been overhauled one 1 as removed and one 1 with bushing removed. Shortwingpipers org public area where can i find it.

View full version. Remove discard and replace the connecting rod bushing. Replacement connecting rod includes connecting rod bolts and nuts for each connecting rod removed and returned to lycoming engines through an authorized lycoming distributor refer to the replacement connecting rod assemblies table bearings for each connecting rod removed order the same p n bearings as removed refer to figure 17 for connecting rod bearing p n location. I have found a nos set of lycoming rods pn 5104 61477 stating they are for a o 290.

All supported lycoming reciprocating aircraft engines. 05k23068 lycoming kit conn. Lynda phillips created date. Is the 5104 61477 a old p n.

Whenever new connecting rods and or new connecting rod bolts are being installed. Clarified connecting rod bolt selection and installation instructions added new figure 1 revised part numbers in table 1 and added information from obsolete service. New mandatory service bulletin requires connecting rod inspection on lycoming engines july 20 2017 by general aviation news staff lycoming has issued mandatory service bulletin 632 that requires owners to check their engines for connecting rods that contain bushings that do not meet lycoming engine s specifications within the next 10 hours of operation. If a piston is to be replaced it is strongly recommended that the power plant mechanic refer to lycoming service instruction no.