Jetta L4-1781cc 1.8L SOHC (RV, PF) (1989)
/Page-1118005.png)
^
connect VW 1367 engine tester to engine. DO NOT connect exhaust analyzer at this time as it may clog very quickly during cleaning procedure.
^
thread G-16 aerosol container onto adapter line and hold can vertically, upside down AVOID ALL ELECTRICAL CONTACT.
^
open shut-off valve on adapter line completely. A full can should show 4 to 5 bar (58 to 73 PSI) pressure.
^
have someone start the engine while you regulate the throttle with your free hand to maintain approximately 3000 RPM.
^
keep engine running, and adjust shut-off valve to maintain a continuous pressure of 2.5 to 3.0 bar (36-44 PSI) until container is empty
(approximately 4-5 minutes).
^
repeat operation with a second container of cleaner.
^
reinstall fuel lines by following the removal procedure in reverse order (first bleed off any residual pressure by slightly opening shut-off valve on
VW 1318).
^
run engine at idle until radiator cooling fan cycles at least once.
^
connect exhaust analyzer and check CO%; correct if not within specifications.
CAUTION
Do NOT exceed four applications without changing the engine oil. Follow the recommended oil change instructions on the back of the bottle.
CAUTION
Part numbers are for reference only. Always check with your Parts Department for latest information.
Step 4. Carbon Build-up, Removing
Based on your diagnosis during step 2 (page 2), select one of the following service solutions.
Minor build-up
If minor carbon build-up has been diagnosed:
^
add one 20 oz. bottle of Autobahn gasoline additive (P/N: ZVW 246 001) to a full tank of fuel
Step 4 (Minor Build-up)
Suggested Repair Time:
N/A
Heavy build-up
If heavy carbon build-up has been diagnosed, remove the build-up mechanically:
^
remove cylinder head and intake valves
^
mechanically remove carbon build-up
^
reinstall cylinder head, refer to repair manual for torque values
Step 4 (Heavy build-up)
Labor Operation:
1560550
Suggested Repair Time:
300 tu total
Repair:
290 tu
Q.A.:
10 tu
