I have found a nos set of lycoming rods pn 5104 61477 stating they are for a o 290.
Lycoming connecting rods.
Rod bearing replacement for malibu ae2a.
These fit most o 235 o 320 and io 320 engines.
Lycoming crankshaft connecting rods lycoming crankshaft connecting rods.
Clarified connecting rod bolt selection and installation instructions added new figure 1 revised part numbers in table 1 and added information from obsolete service.
This is a set of three 3 each lycoming connecting rods.
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.
Shortwingpipers org public area where can i find it.
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One 1 rod appears to have been overhauled one 1 as removed and one 1 with bushing removed.
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.
This service instruction shows that certain piston part numbers are designed to fall within a specified standard weight range.
Remove discard and replace the connecting rod bushing.
If a piston is to be replaced it is strongly recommended that the power plant mechanic refer to lycoming service instruction no.
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.
All supported lycoming reciprocating aircraft engines.
2 if the chamfer of the connecting rod and the chamfer of the connecting rod bushing do not align figure 8 the connecting rod bushing has moved within the connecting rod.
Lynda phillips created date.
Is the 5104 61477 a old p n.
My o 290 manual calls out 78030 s as the correct part.