SUBARU EJ SERIES CONROD BOLTS PRESS FIT STYLE

Description

Unquestionably The Most Import
ant Fasteners In Any Engine Ar
e The Connecting Rod Bolts, As
They Hold The Key To The Enti
re Rotating Assembly. A Broken
Bolt Will Lead To A Catastrop
hic Engine Failure. As You Can
Imagine, The Most Critical Jo
int Is Where The Connecting Ro
ds Mate. The Rod Bolts Must Su
pport The Primary Tension Load
s Caused By Each Rotation (or
Cycle) Of The Crankshaft. When
The Crank Rotates, The Big En
d Of The Connecting Rod Essent
ially Becomes Oval Shaped And
The Rod Bolts Bend. As The Cra
nkshaft Continues To Rotate, T
he Rod Becomes Round Again. Wi
th Alternating Tension Loads A
nd Cyclic Bending Of The Bolts
, It’s Very Important To Insta
ll Fasteners That Are Able Exe
rt A Clamping Force Greater Th
an The Load Imposed On The Joi
nt (tension). In An Addition T
o Utilizing A Rod Bolt With Su
fficient Strength To Withstand
The Tremendous Cyclic Strains
Placed Upon It, It Is Absolut
ely Imperative That The Bolts
Be Properly Tightened. The Pre
ferred Method Of Monitoring Th
e Correct Amount Of Tension Is
Through A Stretch Guage. This
Is Far More Accurate Than A T
ension Wrench Moreover Through
Subsequently Checking The Rod
Bolts Length At Teardowns, It
Is Possible To Determine If I
t Has Been Stressed Beyond Saf
e Limits And Must Be Replaced.