Question about 1996 kawasaki VN 1500 Vulcan Classic

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Oil pump gear - 1996 kawasaki VN 1500 Vulcan Classic

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It looks like they have the gear.

oil pump gear - be7b92f.gif

Posted on Aug 04, 2010


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New oil pumps will not work until they are primed . Pull the pump and remove the gears cover Fill the space around the gears with Vaseline / grease and replace the cover/pump. When the engine starts to spin the gears will move the Vaseline out into the oil galleys and create a vacuum which will suck up the oil. The Vaseline/ grease will disperse back into the sump with no ill effects. Ensure the oil pick up pipe is securely in place.

Jun 07, 2013 | Cars & Trucks

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Replace oil pump in 94 grand am

the 2.3 and 3.1 engines need to drop oil pan.for the 3.3 engine you have to remove timing chain have to remove oil filter adapter the pressure regulator valve and the valve spring.then remove oil pump cover to oil pump screws remove cover remove oil pump gears.when installing another new oil pump lubricate the oil pump gears with clean engine oil pack the pump cavity with petroleum jelly.torque oil pan cover screws to 97 inch lbs which would be 11 ft lbs torque.oil filter adapter plate 24 ft lbs.

Jan 11, 2013 | 1994 Pontiac Grand Am

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Pump problem ,oil pump diagram please

1998 sportster has great oil pressure at point of cooler hook up however the head seems dry and noisy like no oil is getting to the head.

Jul 11, 2011 | 1993 Harley Davidson XLH Sportster 883

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I have a 1980s 281xp and i need a oil pump .i bought one but its not the same.thay say that its the one for it buts it not the same

There were two pumps over the life of the 181/281, the difference is the oil pump drive gear opening in the pump body, if you have the old oil pump, you can fit the later one, but you will need to change the oil pump drive gear, the later gear is much larger, and seals into the pump body, the early pump had a small gear and the seal was in the back of the sprocket. The old pump part no. was 501802501 and the gear was 501803001, the later pump is part no. 503698101 and the gear is 503557501, you cannot mix and match these parts.

Mar 06, 2011 | Garden

2 Answers

How do you change the oil pump in a 1995 Lumina van with a 3.8?


  1. Remove front cover.
  2. Remove oil filter adapter, pressure regulator valve and spring.
Fig. 16 Oil Pump & Housing 42162079

  1. Remove oil pump cover attaching screws, then the cover and gears, Fig. 16 .

  1. Check pump cover and housing for cracks, scoring, porous or damaged casting, damaged threads or excessive wear or galling. Replace as required.
  2. Check pressure regulator valve for scoring, burrs or sticking in valve bore. Replace as required.
  3. Check pressure regulator valve spring for tension loss or bending, replace spring as required.
  4. Check gears for chipping galling or excessive wear, replace as required.
Fig. 17 Oil Pump Inner Gear Tip Clearance Inspection 42162080

  1. Measure oil pump inner gear tip clearance, Fig. 17 . Maximum clearance should be 0.006 inch.
Fig. 18 Oil Pump Outer Gear Diameter Clearance Inspection 42162081

  1. Measure oil pump outer gear diameter clearance, Fig. 18 . Clearance should be 0.008-0.015 inch.
Fig. 19 Oil Pump Gear End Clearance Inspection 42162082

  1. Measure oil pump gear end clearance with gear dropped in housing, FIG 19. Clearance should be 0.0010-0.0035 inch.
  2. Measure pressure regulator valve for valve to bore clearance of 0.0015-0.003 inch.

  1. Lubricate all gears with clean motor oil, then install gears in housing.
  2. Pack pump cavity with suitable petroleum jelly.
  3. Install pump cover and cover attaching screws. Tighten cover attaching screws to specifications.
  4. Install pressure regulator valve and spring.
  5. Install oil filter adapter using a new gasket, tighten oil filter adapter attaching bolts to specifications.
  6. Install front cover on engine. During front cover installation, ensure inner pump gear is properly engaged on crankshaft sprocket.

Jan 29, 2011 | Chevrolet Lumina APV Cars & Trucks

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How to assemble oil pump 1995 Heritage

Assembling an oil pump is not that difficult provided you do a few things to insure that it works correctly. Now, you didn't tell me if the engine was in the frame or out. The difference is that the oil pump drive shaft will already be in the engine and the assembly will be different than if the shaft is out of the engine.

The first thing is that you want to make sure the oil seal is in the pump body and that it's installed in the correct direction. The lip of the seal must face the feed side of the pump. If you look at the gears and the pump body, you'll see that two gears are "thicker" than the other two. Also, the area that these gears go into are the same, one side it deeper than the other in the pump body. The "thin" gears are the feed gears that pump oil into the engine and the "thick" gears are the scavenge gears that pump the oil out of the engine. Once you get the seal installed correctly. You can start putting the gears and drive keys in.

Start by pulling the drive shaft out the back side to the engine as far as possible and installing the inner oil pump gasket. "Stick" the gasket to the engine case with a thin coating of grease. Slide the driven scavenge gear on the shaft with the drive key installed in the keyway of the shaft. The driven gear is the gear with the keyway cut in it. Lubricate the drive shaft and slide the pump body up to the gears making sure you don't go too far and knock the key out of the shaft.

Now put the drive key for the feed side of the pump in the keyway of the shaft and install the feed side driven gear. Make sure the key does not come out of the keyway. Once you get this installed, put the idle feed gear in the pump body. Then install the snap ring on the pump end of the shaft.

Now, carefully slide the pump towards the engine while holding the oil pump drive gear in place in the cam chest. Slide the pump body up to the engine and loosely install the two short bolts in the pump body holding it to the engine. Turn the pump drive shaft and the drive gear so that the keyways are aligned and use a pair of needle nose pliers to insert the key. Then install the snap ring on that end of the shaft.

Then, "stick" the outer oil pump gasket on the outer face of the oil pump body and install the outer cover of the oil pump. Install the four bolts and snug them up to the cover. Now you are ready to tighten the bolts. You should have the pinion gear and oil pump drive gear removed from the pinion gear of the pinion shaft of the flywheel. This will allow you to turn the oil pump while you torque the bolts.

The oil pump bolts torque to 90-110 INCH pounds. Torque the bolts in a criss cross pattern while turning the drive gear in the cam chest with your fingers. If the pump tightens up at any point, you must loosen and reposition the pump slightly and start tightening the pump again. The goal is to get the pump to final torque and still be able to turn the pump freely. Freely is the key word here. Not herky-jerky turning or having to force the gear to turn.

Good Luck

Nov 10, 2010 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

What drives the oil pump on a 4.3L V6?

the camshaft drives the distributor gear at the bottom of the distributor and in the bottom of the distributor gear is a slot which fits onto the oil pump drive shaft common problem is the cam gear is made of plastic and the teeth break off and clog the oil pump screen if the gears are replaced and the oil pump is not replaced or cleaned failure will result

Aug 28, 2010 | 1996 Chevrolet S-10 Pickup

2 Answers

What drives the oil pump on a '97 Pontiac Grand Prix 3.1L V6?

I don't think you can damage the oil pump gear when torquing the harmonic balancer. Oil Pump Removal & Installation 3.1L & 3.4L Engine To Remove:
  1. Remove the oil pan.
  2. Remove the oil pump.
  3. Remove the drive shaft extension.
Oil Pump and drive gmpc_v6_18.gif

To Install:
  1. Install the oil pump.
  2. Install the drive shaft extension.
  3. Engage the drive shaft extension into the drive gear.
  4. Install the pump to the rear bearing cap. Tighten the bolt to 30 ft. lbs. (41 Nm).
  5. Install the oil pan.
3.8L Engine NOTE: The oil pump on the 3.8L engine is serviced as part of the engine front cover.
  1. Remove the following:
    • Engine front cover.
    • Oil pump cover screws.
    • Oil pump cover.
    • Oil pump gear set.
Oil Pump in front cover gmpc_v6_19.gif

To Install:
  1. Lubricate the oil pump gear set with petroleum jelly.
  2. Install the oil pump gear set.
  3. Pack the oil pump gears with petroleum jelly.
  4. Install the oil pump cover.
  5. Install the oil pump cover screws. Tighten the screws to 98 in lbs (11 Nm)
  6. Install the engine front cover. NOTE: Do not run the engine until the oil pressure is tested. Running the engine without measurable oil pressure will cause extensive damage.
  7. Inspect the oil pressure.
  8. Inspect for leaks.
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Jul 21, 2010 | 1997 Pontiac Grand Prix

1 Answer

Not getting oil to the lifters on my 1991 evolution engine.I have blown out all the lines and have oil pressure but the top end is still bone dry

Have you taken the tappet oil screen out and cleaned it? It's the round plug that looks like it takes a large screwdriver to get it out. If so, then your oil pump is not working.

The oil pump has a slider valves in it. It's under the plug towards the outside of the pump. When the engine first starts, the oil pressure is directed to the tappets. Once the oil pressure rises above a certain level, the slider rises and then it allows oil to the bottom end. The tappets get the oil first.

The oil is pumped from the tappets up through the pushrods to the rocker boxes. Now, your rocker boxes are not going to be flooded with oil either. There may be a small puddle of oil somewhere but most of the oil drains back down to the bottom end of the engine where it is scavenged out and sent back to the oil tank.

If you do not have any oil pressure to your tappets, they will rattle like all get out. It'll be obvious. Now, there are three drive keys in the oil pump. One drive key for each set of gears, feed gears and scavenge gears. And, one drive key in the cam chest that drives the entire pump. Remove the oil pressure switch and spark plugs. Spin the engine with the starter. If no oil comes out of the hole where the oil pressure switch is, I'd advise pulling the cam chest cover (nose cone) off. Once you get it off, look at the gear on the end of the oil pump drive shaft. You'll be able to see the end of the keyway in the shaft. Now, notice if the slot for the key in the gear on the end of the shaft is aligned with the slot. If not, the key is sheared. If the key is sheared, you're probably had a tooth break off of the plastic breather gear and it's gotten caught in the scavenge gears and locked the oil pump up. You must remove and clean out the oil pump and replace the sheared key. If the breather gear is broken (or even if it's not) I'd recommend installing the new S&S Reed Valve type breather. It doesn't rotate and works great. Solves the problems in that area.

Good Luck

Jul 07, 2010 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

Mechanic mistakenly put gear oil in tank, the pump is knocking

What the heck did he think he was putting in the tank? Gear oil is very thick and heavy, so the fuel pump may have a problem as it is meant to pump gas, which is not thick and heavy like gear oil. There was probably some gear oil in the tank while the pump was operating, and it pumped some gear oil for a short time, which damaged it. Insist that the 'mechanic' replace the fuel pump at no cost to you ,and find a new mechanic for future repairs. Good luck.

Nov 09, 2009 | 1991 Mitsubishi Galant

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