Parts for your 2002 Daihatsu Gran move-Oil seals

2002 Daihatsu Gran Move oil seals — what they do and when to replace them

Oil seals are absolutely fitted to the 2002 Daihatsu Gran Move. Technical sources including the Daihatsu Gran Move/Pyzar workshop manual (Engine Mechanical and Manual Transaxle sections) and the Daihatsu Electronic Parts Catalogue list multiple seals: front and rear crankshaft oil seals, camshaft oil seal, and transaxle/drive shaft (axle) output shaft oil seals, along with differential side seals. These seals keep engine and gearbox lubricants where they belong and stop dust and water getting in.

On a Gran Move, oil seals have a straight‑up job: retain oil around fast‑spinning shafts while the engine and driveline cop a daily hiding. The front crank seal sits behind the crank pulley, the rear crank seal lives between the engine and gearbox, the cam seal sits in the timing end of the head, and the transaxle seals hug the drive shafts. When healthy, they protect bearings, timing components, and clutches from oil contamination and help the engine hold proper oil pressure.

As part of routine servicing, give the seals a once‑over whenever the bonnet’s up for a timing belt, clutch, or driveshaft boot job. Look for fresh oil misting, weep lines, or dirt stuck to oily patches. A few common tells:

• Front crank or cam seal: oil inside the timing cover, flicked oil on the lower covers or crossmember, damp belt area.
• Rear main seal: oil at the bellhousing weep hole or clutch slip on take‑off.
• Transaxle output seals: gear oil on the inner CVs or driveway spots with that distinctive sulphury smell.

If a seal’s leaking, replacement beats topping up forever. On this model, it’s smart to pair jobs: do the front crank and cam seals with the timing belt and front main pulley off, consider the rear main when the gearbox is out for a clutch, and swap transaxle seals when removing driveshafts. Use quality seals, lightly oil the lips, and press them square to spec depth. Aftermarket kits are fine if they match OE dimensions. Torque fasteners to workshop‑manual specs and recheck fluid levels after a short shakedown. In Aussie and Kiwi conditions, a well‑installed seal should stay tidy for years—any repeat leak usually points to a worn shaft surface, blocked PCV, or poor installation rather than a dud seal.

Where are the main oil seals on a 2002 Gran Move?

They’re at the front and rear of the crankshaft, the camshaft timing end, and at the transaxle where the drive shafts exit. Each one guards a rotating shaft that needs oil inside and grime kept out. Most are accessible during related jobs like timing belt, clutch, or driveshaft work.

How can someone tell if the rear main seal is leaking?

Look for fresh engine oil at the bottom of the bellhousing or drips forming from the engine–gearbox join. If oil gets on the clutch, there can be shudder or slip under load. Confirm it’s engine oil (not gear oil) before planning a repair, as gearbox removal is required.

Do the driveshaft oil seals need the gearbox removed?

No. The shafts can be popped out and the seals replaced in situ. It’s a tidy job for a competent home mechanic with stands, but mind the diff side gears and refill with the correct spec gear oil. If there’s shaft wear, consider a repair sleeve.