Impco RK-VFF30 Manuale utente
July, 2015 IMPCO Technologies Inc. PPI-4-116 REV.C
3030 South Susan St. Page 1 of 15
Santa Ana, CA 92704
www.impcotechnologies.com
3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
VFF30 LOCKOFF/FILTER
REPAIR KIT INSTRUCTIONS
Important: Any maintenance, service or repair
should be performed by trained and
experienced service technicians. Proper tools
and equipment should be used to prevent
injury to the servicing technician, property or
system components. Service repairs should
always be performed in a safe environment
and the technician should always wear
protective clothing to prevent injury.
The IMPCO PPI-4-116 repair kit instructions
will provide the technician information to
successfully repair the VFF30 Lockoff. Always
inspect the major casting pieces for damage,
corrosion or cracks before attempting a service
repair. Be sure the repair kit part number you
are using is correct for the Lockoff being
serviced. Diaphragms are color coded and
have different performance characteristics:
BLACK: Hydrin diaphragm material is the
standard material and is well suited for the
most common applications.
YELLOW: Silicone diaphragm material is the
optional upgrade material that provides
excellent flexibility in cold weather climates
and is more resistant to chemical
contamination.
BLUE: Fluorosilicone diaphragm material
provides excellent high and low temperature
durability with increased chemical resistance.
This material is recommended for turbo
applications.
Do not use Teflon tape to seal any fuel fittings.
Failure to follow this warning may cause
internal leaks resulting in serious injury and/or
property damage.
Part # Description
RK-VFF30 Repair Kit, VFF30 (Standard Hydrin Diaphragm)
RK-VFF30-2 Repair Kit, VFF30 (Silicone Diaphragm)
RK-VFF30-3 Repair Kit, VFF30 ( Fluorosilicone Diaphragm)
RK-VFF30-958 Repair Kit, VFF30 (Fluorosilicone Diaphragm)
AF1-10 Repair Kit, VFF30 (Gasket and Filter Only)
AF1-10-001 Repair Kit, VFF30 (Gasket and Filter Only)
REPAIR KIT PART NUMBERS
PPI-4-116 REV. C IMPCO Technologies Inc. July, 2015
Page 2 of 15 3030 South Susan St.
Santa Ana, CA 92704
www.impcotechnologies.com
3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
VFF30 LOCKOFF/FILTER COMPONENTS
ITEM# PART# DESCRIPTION
S1-15265-001 Screw, 8-32 Taptite (6)
S1-59 Screw 8-32 x 5/8" LTD FLT (6)
2C1-37
Diaphragm cove
r
BD1-26
Diaphragm Assy (Standard)
(RK-VFF30)
BD1-27
Diaphragm Assy, Silicone
(RK-VFF30-2)
BD1-27-5
Diaphragm Assy, Flourosilicone
(RK-VFF30-3)
4* S1-15265-002 Screw, 8-32 Taptite (3)
5F3-2
Fulcrum
6 L1-39 Valve operating lever
7
A
B1-30149 Body ass'y
8S1-5
Screw, 1/4-20 x 5/8" SEMS (2)
9* S3-116 Seal, Lip Pin
10* P1-15 Valve, operating pin
11 S2-40 Valve, spring
12* S7-3 Screen, back-up filte
r
13** F1-10 Filter
14* W1-42 Washer, Seal Retaining
15** G1-89 Filter cover gasket
16 C1-38 Filter cover
S1-15266-001 Screw, 12-24 Taptite (10)
S1-100 Screw, 12-24 x 5/8" (10)
18 AF4-66 Fitting, ball check, assy (not shown
VFF30-2-4 only)
19* S4-18 Seat, VFF30
NSS = Not Serviced Separately
3*
1*
17
*Repair Kit Components. Note that extra screws (both slotted
and torx) are included in the repair kits to replace any that may
be damaged. When replacing screws, be sure to properly
match thread type (self-tapping or machined) as the two types
are not interchangeable.
**Included in all repair kits and the only two parts included in
AF1-10.
July, 2015 IMPCO Technologies Inc. PPI-4-116 REV.C
3030 South Susan St. Page 3 of 15
Santa Ana, CA 92704
www.impcotechnologies.com
3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
REBUILD INSTRUCTIONS
Disassembly
1. Remove 10 Screws (17) from "Fuel In" cover.
2. Remove Cover (16) and Gasket (15).
3. Remove Filter (13) and screen (12).
PPI-4-116 REV. C IMPCO Technologies Inc. July, 2015
Page 4 of 15 3030 South Susan St.
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3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
4. Remove Screw (4) retaining Valve Spring (11).
5. Remove Valve Spring (11).
6. Using a small flat head screwdriver, remove Valve
Seat (19).
7. Gently lift up and remove the Valve Operating Pin
(10).
July, 2015 IMPCO Technologies Inc. PPI-4-116 REV.C
3030 South Susan St. Page 5 of 15
Santa Ana, CA 92704
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3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
8. With paper clip or wire, fashion a hook as shown.
9. Cutaway shows assembly of Valve Spring (11),
Valve Seat (19), Valve Operating Pin (10), Seal
Retaining Washer (14) and Pin Lip Seal (9). Note that
removal of Valve Pin allows retaining Washer to be
removed through the ¼” NPT opening labeled “Out.”
10. Insert paper-clip hook in center hole of Seal
Retaining Washer (14) and remove.
11. Using the same hook, remove the Pin Seal (9)
through valve jet.
PPI-4-116 REV. C IMPCO Technologies Inc. July, 2015
Page 6 of 15 3030 South Susan St.
Santa Ana, CA 92704
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3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
12. Remove 6 Screws (1) on diaphragm cover side.
13. Remove Cover (2) and diaphragm (3). Clean
covers, body and metal parts as necessary with a
safety solvent and dry prior to reassembly.
Do not use harsh solvents such as brake or carburetor
cleaner on any of the non-metallic components as they
will damage the material.
July, 2015 IMPCO Technologies Inc. PPI-4-116 REV.C
3030 South Susan St. Page 7 of 15
Santa Ana, CA 92704
www.impcotechnologies.com
3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
Reassembly
14. RK-VFF30 Kit Includes:
1 GI-89 Gasket (15)
1 F1-10 Filter (13)
1 S7-3 Screen (12)
1 BD1-26* Diaphragm Assy (3)
2 S1-59 Screw, 8-32 x 5/8" (1)
2 S1-100 Screw, 12-24 x 5/8" (17)
1 S4-18 Seat (Viton/Aluminum)(19)
1 S3-116 Seal, Lip Pin (9)
1 PI-15 Pin, Valve Operating (10)
1 W1-42 Washer, Seal Retaining (14)
1 H1-14236 Seal Holder Insertion Tool
1 P1-14235 Pin Insertion Tool
1 PPI-128 Instructions
2 S1-15265-001 Screw, 8-32 17/32” Taptite Torx (1)
2 S1-15266-001 Screw, 12-24 x 11/16” Torxfil (17)
1 S1-15265-002 Screw, 8-32 3/8” Taptite Torx (4)
*Standard diaphragm. See table on page 2 for optional
diaphragms.
15. Lubricate the Lip Pin Seal (9) with petroleum jelly
or Vaseline and place in the Seal Holder Insertion Tool
groove side up, as shown in the illustration. Note that
the Seal Holder passage is tapered and the wide
opening of the seal holder should be facing up.
16. Place the VFF30 Body (7) with the filter side up, as
shown in the photo, on a flat surface. Ensure that the
groove in the Seal (9) is visible from the top of the taper
of the Seal Holder Insertion Tool.
PPI-4-116 REV. C IMPCO Technologies Inc. July, 2015
Page 8 of 15 3030 South Susan St.
Santa Ana, CA 92704
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3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
17. Place the holder in the up position and slide the
Holder and the Seal (9) into the Body (7) of the VFF30.
Looking through the fuel port, position the Seal above
the cavity of the seal recess.
18. Coat the Pin Insertion Tool with petroleum jelly and
push the Seal (9) through the Holder and into the Seal
recess of the VFF30 Body (7). Look through the fuel
port to ensure the Seal is seated in the seal recess and
that the groove in the seal is visible.
19. Use needle nose pliers to hold the Seal Retainer
Washer (14).
July, 2015 IMPCO Technologies Inc. PPI-4-116 REV.C
3030 South Susan St. Page 9 of 15
Santa Ana, CA 92704
www.impcotechnologies.com
3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
20. Insert Seal Retainer Washer (14) in slot to hold the
Lip Pin Seal (9) in place.
21. Lubricate the Pin Valve (10) with petroleum jelly
and insert through hole in the Washer Retainer Seal
(14) and Lip Pin Seal (9). Rotate head of Pin gently in a
circular motion to ease Pin into place through the
Washer, Lip Pin Seal and Body (7) housing.
22. Pin (10) properly placed in valve jet.
PPI-4-116 REV. C IMPCO Technologies Inc. July, 2015
Page 10 of 15 3030 South Susan St.
Santa Ana, CA 92704
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3030 S Susan Street, Santa Ana, CA 92704
Ph: +1 714 656 1200 Fax: +1 714 656 1400
23. Valve Seat (19) shown with aluminum side up
ready to be placed on jet.
24. Place the Seat (19) with the viton (black rubber)
side down, in position on jet.
25. Spring (11) ready to be fastened in place. Be sure
the arc in the center faces upward (see illustration in
step 26 below).
26. Replace Spring (11) and fasten in place with Screw
(4). Align the tip of Spring (over valve) and center
between the 3 guide fins as shown in illustration.
Tighten Screw 28-32 in-lbs. (3.2-3.6 Nm)
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