11
AeroVee 2.1
Rev Z. 01/14/2015
Sonex Aircraft
LLC
© 2014 All Rights Reserved
CONNECTING ROD ASSEMBLY
Tools Required:
__ White Lithium Grease
__ Socket Wrench and Socket Set
__ Moly Lube
__ "Red" Locktite (High Strength Threadlocker)
__ Torque Wrench (40 ft-lbs. capacity)
__ Feeler Gauge
Parts Required:
__ Connecting Rods, ACV-P06-33 or ACV-P01-33
__ Rod Bearing Set, ACV-P01-59
__ Crankshaft Assembly
Note:
Both parts of each con-
necting rod are stamped with
a unique number, identifying
them as matched parts. The
connecting rods
must
be re-
assembled as matched parts,
with the numbers together as
shown in this photograph.
Assembly Instructions:
__1. Remove the fastener from each Connecting Rod and
carefully separate the two parts. Do not scratch or score
the machined surface of the connecting rods.
__2. Wipe the mating
surfaces of the connect-
ing rods and bearing
halves so they are free
of oil and dust. Install
the bearing halves by
aligning the tab on
each bearing half with
the notch in each con-
necting rod and press-
ing the bearing halves
into place.
2
__4. The connecting rods
are attached to the
crankshaft, as shown in
the photo below, with
the stamped numbers
facing up.
Be sure
to re-assemble the
connecting rods as
matched parts.
4
__5.
ACV-p06-33 Rods only (with starred bolt and nut):
Apply Moly Lube to each rod bolt and install. Torque
each bolt as follows:
___first to 8 ft.-lbs.
___then to 15 ft.-lbs.
___then 24 ft.-lbs.
___Then the final torque of 38 ft.-lbs.
ACV-p01-33 Rods only (with hex bolt):
Apply "Red"
Locktite (or, if supplied with your rods, ARP Ultra-
Torque) to the threads of each rod bolt and install.
Torque each bolt in four steps:
___first to 8 ft.-lbs.
___then to 15 ft.-lbs.
___then 24 ft.-lbs.
___Then the final torque of 30 ft.-lbs.
__6. Check each connecting rod for freedom of movement
and .005" to .020" side clearance.
4
Note:
The clearance between the rod bearings and rod journals
must be between .002" and .0025". When assembling new
parts, as provided in the AeroVee 2.1 kit, the proper clearance
is often assumed. When rebuilding an engine using remanufac-
tured parts, this clearance
must
be checked. Detailed instruc-
tions for checking this clearance are given in Tom Wilson's
book "How to Rebuild Your Volkswagen Air Cooled Engine".
__3. Apply an even coat of white lithium grease to the ex-
posed surfaces of each bearing half.
The connecting rods are installed on the crankshaft in the
orientation shown above with the stamped numbers on each
rod facing up.