5-101.bk Page 20 Friday, March 17, 2006 11:05 AM [221 CD] ECONOVANCE 3 4 5 V-MAC Equipped Engines 2 Refer to Figure 4-23. 1 1. Working from front of engine, remove four capscrews securing the injection pump drive gear. Remove gear. 6 200364a Figure 4-24 — Econovance Housing Removal (Pre-1992 Style Shown) [211 NB] OIL PAN Figure 4-23 — Fuel Injection Pump Drive Gear Removal Refer to Figure 4-25. 1. Remove the nuts from the two studs securing the oil pan to the timing gear cover. Refer to Figure 4-24. 2. Remove mounting capscrews (1) securing injection pump adapter (2) to Econovance housing. Remove adapter. 2. Remove the two nuts from the two studs securing the oil pan to the flywheel housing.
3. Remove the remaining shouldered bolts securing the oil pan to the pan rails and remove the oil pan. 3. Remove the drive coupling (3) by slipping it off of the splines (6). A metal two-piece style drive coupling was introduced into production on certified E7 V-MAC engines built after July 1, 1992 — beginning with serial No. 2P and above. When the Celeron drive coupling requires replacement, replace the drive coupling with the updated two-piece style. Older style shown. Oil pans with isolating gaskets are secured with nuts and shouldered studs at the timing gear cover and flywheel housing. Refer to Figure 4-25. 4. Remove the Econovance (5) by removing four mounting capscrews (4).
Rotate shaft to clear the camshaft gear. Page 4-20 200 ENGINE DISASSEMBLY 1. Mounting capscrew 2. Injection pump adapter 3. Drive coupling 4. Capscrew 5. Econovance 6. Splines