JIMS 1820 User Manual
No.1820-is
Use with JIMS new No.1043 Twin Cam Tappet Cover when using any stock to mild lift cams.
NOTE: Hydrosolid
®
II must be adjusted as a solid lifter in a cold motor only. If you are
unfamiliar with solid lifter adjustment, seek professional help. Otherwise serious engine
valve train damage will result.
NOTE: The JIMS Hydrosolid
®
II tappet includes design parameters that may or may not
affect your oil pressure. These performance tappets incorporate an “oil hole” to feed the
tappet roller, axle and cam assembly. In test, JIMS has seen a slight drop in oil pressure
ranging from 0-3 lbs psi. It is up to you, the mechanic, to confirm adequate oil pressure
before and after installing these tappets.
R
RE
EA
AD
D A
AL
LL
L IIN
NS
STTR
RU
UC
CTTIIO
ON
NS
S B
BE
EF
FO
OR
RE
E S
STTA
AR
RTTIIN
NG
G JJO
OB
B
CAUTION: Disconnect the ground cable at the battery.
1. Refer to H-D
®
Service Manual for tappet installation. If installing a cam and
tappet blocks at the same time follow those manufacturers’ instructions.
IIn
ns
st
tr
ru
uc
ct
tiio
on
n S
Sh
he
ee
et
t F
Fo
or
r P
Pa
ar
rt
t #
#1
18
82
20
0,, #
#1
18
82
21
1,, &
& #
#1
18
82
22
2
Rev A
9-08
No.1820-IS
555 Dawson Drive, Camarillo, CA 93012 Phone 805-482-6913 • Fax 805-482-7422
HYDROSOLID
™
II TAPPET
Note: As you are preparing the engine for the installation of the new Hydrosolid
®
II, place
all 4 tappets in a clean container (plastic bag) filled with clean H-D
®
20W50 oil to cover
tappets, let them set for 20 minutes.
2. Place the front piston at TDC compression position.
3. With all four Hydrosolid
®
II Tappets installed, start with the front intake pushrod
making sure tappet is at the lowest point on the cam.
4. Extend the pushrod adjuster screw to zero lash, you will be making the pushrod
longer (no up and down movement, removing all free play without pushing the
hydraulic unit down). See pushrod adjustment chart for your particular pushrod.
Example: If your pushrods have 24 threads per inch extend pushrod 5 hex wrench flats.
Note: This will move the adjusting screw down, pushing the hydraulic unit down it’s bore
.0345”, this will put the hydraulic unit about .014” from the floor of tappet. What we are
looking for is the hydraulic unit resting on the floor of the tappet.
(This is just a starting point, the adjuster screw may need to be extended or shortened if
the adjusting screw was either adjusted too far or not enough.)
This adjustment will bleed the Hydrosolid
®
II Tappet, which may take 5-15 minutes or
longer to bleed off oil pressure. What we're looking for is a pushrod that just barely turns
with your fingers. If after 15 minutes, if the pushrod still turns easily, (with your thumb and
forefinger) extend the pushrod until you can just barely turn pushrod with your fingers. If
you can barely turn the pushrods with your fingers and the Hydrosolid
®
II’s are at the
lowest point on the cam, then they have been adjusted properly.
CAUTION: If you cannot turn pushrod with your fingers DO NOT rotate engine.
No.1820 - Use on all Twin Cams
®
1999-present,
also Sportster
®
and Buell
®
2000-present.
Standard O.D. is .8420”.
No.1821 - +.001” Oversize.
No.1822 - +.0015” Oversize.
This Tappet Replaces and Surpasses JIMS
®
No.1802
Hydrosolid
®
.
*
NOTE: FOR USE ON ADJUSTABLE PUSH RODS ONLY.
Use with JIMS new No.1043 Twin Cam Tappet Cover when using any stock to mild lift cams.
NOTE: Hydrosolid
®
II must be adjusted as a solid lifter in a cold motor only. If you are
unfamiliar with solid lifter adjustment, seek professional help. Otherwise serious engine
valve train damage will result.
NOTE: The JIMS Hydrosolid
®
II tappet includes design parameters that may or may not
affect your oil pressure. These performance tappets incorporate an “oil hole” to feed the
tappet roller, axle and cam assembly. In test, JIMS has seen a slight drop in oil pressure
ranging from 0-3 lbs psi. It is up to you, the mechanic, to confirm adequate oil pressure
before and after installing these tappets.
R
RE
EA
AD
D A
AL
LL
L IIN
NS
STTR
RU
UC
CTTIIO
ON
NS
S B
BE
EF
FO
OR
RE
E S
STTA
AR
RTTIIN
NG
G JJO
OB
B
CAUTION: Disconnect the ground cable at the battery.
1. Refer to H-D
®
Service Manual for tappet installation. If installing a cam and
tappet blocks at the same time follow those manufacturers’ instructions.
IIn
ns
st
tr
ru
uc
ct
tiio
on
n S
Sh
he
ee
et
t F
Fo
or
r P
Pa
ar
rt
t #
#1
18
82
20
0,, #
#1
18
82
21
1,, &
& #
#1
18
82
22
2
Rev A
9-08
No.1820-IS
555 Dawson Drive, Camarillo, CA 93012 Phone 805-482-6913 • Fax 805-482-7422
HYDROSOLID
™
II TAPPET
Note: As you are preparing the engine for the installation of the new Hydrosolid
®
II, place
all 4 tappets in a clean container (plastic bag) filled with clean H-D
®
20W50 oil to cover
tappets, let them set for 20 minutes.
2. Place the front piston at TDC compression position.
3. With all four Hydrosolid
®
II Tappets installed, start with the front intake pushrod
making sure tappet is at the lowest point on the cam.
4. Extend the pushrod adjuster screw to zero lash, you will be making the pushrod
longer (no up and down movement, removing all free play without pushing the
hydraulic unit down). See pushrod adjustment chart for your particular pushrod.
Example: If your pushrods have 24 threads per inch extend pushrod 5 hex wrench flats.
Note: This will move the adjusting screw down, pushing the hydraulic unit down it’s bore
.0345”, this will put the hydraulic unit about .014” from the floor of tappet. What we are
looking for is the hydraulic unit resting on the floor of the tappet.
(This is just a starting point, the adjuster screw may need to be extended or shortened if
the adjusting screw was either adjusted too far or not enough.)
This adjustment will bleed the Hydrosolid
®
II Tappet, which may take 5-15 minutes or
longer to bleed off oil pressure. What we're looking for is a pushrod that just barely turns
with your fingers. If after 15 minutes, if the pushrod still turns easily, (with your thumb and
forefinger) extend the pushrod until you can just barely turn pushrod with your fingers. If
you can barely turn the pushrods with your fingers and the Hydrosolid
®
II’s are at the
lowest point on the cam, then they have been adjusted properly.
CAUTION: If you cannot turn pushrod with your fingers DO NOT rotate engine.
No.1820 - Use on all Twin Cams
®
1999-present,
also Sportster
®
and Buell
®
2000-present.
Standard O.D. is .8420”.
No.1821 - +.001” Oversize.
No.1822 - +.0015” Oversize.
This Tappet Replaces and Surpasses JIMS
®
No.1802
Hydrosolid
®
.
*
NOTE: FOR USE ON ADJUSTABLE PUSH RODS ONLY.