EVAP - Modification Kit to Improve Hot Starta
83jaguar01JUNE/JULY, 1983
ITEM: J83/32June/July, 1983
SUBJECT: MODIFICATION KIT-HOT START
MODEL: XJ6
A modification kit to improve the hot start capabilities of certain XJ6 and Vanden Plas vehicles is available under P/N RTC-3002K.
The fuel rail thermal switch described in Part B of the fitting instructions has already been fitted to some late vehicles at the factory.
The following fitting instructions are applicable:
PART A - VACUUM OPERATED CANISTER VALVE
1. Jack up vehicle and remove right front wheel.
2. Remove carbon canister noting position of the pipework. Discard existing canister to engine breather rubber hose.
FIGURE 1:
3. Refer to Figure 1 and assemble vacuum valve, A with hoses and reducers B, C, D, & E. Fit long vacuum hose, F, to the vacuum valve.
4. Remove blanking plug on inner fender two inches forward of horn relay holes and fit grommet, X.
5. Fit assembled vacuum valve and hoses to the carbon canister.
Fit the new breather hose, R, to canister using existing hose clip.
6. Refit canister in an inverted position ensuring that the large diameter breather pipe is at the bottom.
7. Connect breather hose, D, to the metal engine breather pipe, and route the long vacuum hose through the grommet fitted in operation 4.
8. Route the vacuum line, F, beneath the air flow meter following the fuel line where possible. Remove the existing vacuum pipe at the throttle body fitting the short vacuum hose, G, to the vacuum pipe stub.
9. Using the "T" piece, H, supplied, connect the new vacuum line to the vacuum line removed from the throttle body. (Fig. 1)
10. Install blanking plug, S, in original hole through inner fender for C canister breather hose.
11. Refit the road wheel and torque to proper specification. (I.E. 45-65 ft. lbs.)
NOTE: The new vacuum line, which was routed beneath the air flow meter, should be fixed in 2 positions by the ratchet straps supplied. One strap should be located near the power steering pump and attached to a local electrical harness, and the second strap should be used to secure the vacuum hose to the fuel feed line beneath the air flow meter.
FIGURE 2 ILLUSTRATION OF COMPLETED CANISTER MODIFICATION:
Illustration of Completed Canister Modification
FIGURE 3:
PART B - FITTING THE THERMAL SWITCH
1. Remove vacuum line from inlet manifold to fuel pressure regulator and discard.
2. Secure the thermal switch, M, to the fuel rail as shown in Fig. 3.
3. Connect the vacuum lines supplied in the kit in the following manner: Inlet manifold to thermal switch, Q-2, and thermal switch to fuel pressure regulator, Q-1.
Claims
Warranty claims must be submitted quoting F 282 in the comment box. The following repair operation and time is applicable:
17.15.71 - Fit Hot Start Modification - 0.90 hrs.
KIT PARTS LIST_ Qty.
A. - Vac valves 1
B. - Reducers 2
C. - Adaptor hoses (2.5" length) 2
D. - Adaptor hose (4.5" length) 1
E. - Adaptor hose (3" length) 1
F. - Vacuum hose (26" length) 1
G. - Vacuum hose (1.5" length) 1
H. - "T" piece 1
R. - Breather hose (C. Canister) 1
S. - Blanking Plug (1" diameter) 1
X. - Grommet 1