Need info in relation to oil pump (shaft) is it replaceable or do i need to replace entire engine?
I was informed that the Oil Pump Shaft in my car was on it's way out and that i would have to replace the entire engine. I was wondering if this is true or if it is possible to replace just the individual part.
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What motor? If a SBC you can't just press on the oil pump pick up, you need to have it welded on or they come loose and fall off.
Some pumps need to be primed, I would put mine into pan of clean oil and turn pump until it started sucking up the oil before installing.
If it is a 3800 Buick you need to pack gears with vasoline, so different motors require different steps in order for oil pump to function after replacing it. There is also chance filter is bad, or relief valve is bad, more info would help us help you.
You have to take the front covers off the engine and while you are that far into the engine you should replace the timing chains; there are kits of all parts needed available. Here is a link with lots of good information: 1az fe balance cam shaft
If the Pontiac engine is similar to the small block Chevy, you have, I believe, a hexagonal shaft that runs from the end of the distributor shaft down to the oil pump. This is turned when the distributor shaft is turned by the meshing gears on the camshaft and distributor shaft. I would say that you are probably going to have to re-time the engine. Find TDC, then replace the distributor. It won't matter a whit to the oil pump if the gears are one or two teeth off, but it will matter a great deal if you distributor is not installed so it can be adjusted a few degrees when you get to "fine timing" the engine.
You should be able to download information on how to time the engine (finding TDC, etc.). Failing that, a trip to the library may be in order.
Please turn the caps lock off when posting, thanks
You're going to have to lift unbolt the engine mounts and lift the motor some so the oil pan will clear the cross member because you will have to remove it to get to the oil pump. The oil pump is at the rear of the motor and has one bolt in the center that holds if. There is also a shaft between the pump and distributor. The cam drives the distributor and that shaft drives the pump.
But before there is a big how to for no reason, why do you feel you need to replace the pump? Oil pressure on the gauge low, fluctuates, shows zero? You may just need to replace the oil pressure sender switch. Cheaper and way easier.
Hello, the oil pump can be removed by removing all the 10mm size bolts on the pump housing, it is not necessary to remove the oil pan or anything else. The oil pump pulley can be removed by taking off the 12mm nut then pull the pulley off and the seal can be replaced.
Remove oil pan, making sure to drain oil first. Remove oil pump attaching bolts. Lift off oil pump and withdraw oil pump drive shaft.
Prime the new oil pump by filling either the inlet or outlet port with engine oil. Rotate the pump shaft to distribute oil within the pump body. Insert oil pump drive shaft into block dwith the pointed end facing inward. The pointed end is closest to the pressed-on flange. Place oil pump into position with a new gasket and install attaching screws. Tighten the screws to 15-22 foot pounds of tourque. Clean and install the oil pump inlet tube and screen assembly with a new gasket. Tighten the bolts, then replace the oil pan.
Clean of any debris and replace gasket. Fit the oil pan bolts and tighten in two steps. Start from the rear/left hand side and tighten first, then tighten the bolt in the front/right side. Alternate from rear to front, working from back to front and front to back.
Fig. Fig. 1: Exploded view of the oil pump used on 2.0L and 2.3L gasoline engines
Fig. Fig. 2: Exploded view of the oil pump used on the 4.0L engine-2.8L and 2.9L engines are similar
Follow the service procedures under Oil Pan Removal and remove the oil pan assembly.
Remove the oil pump retainer bolts and remove the oil pump.
Prime the oil pump with clean engine oil by filling either the inlet or outlet port with clean engine oil.
Rotate the pump shaft to distribute the oil within the pump body.
Install the pump and tighten the mounting bolts to 14-21 ft. lbs. on
2.0L and 2.3L engines; 6-10 ft. lbs. on 2.8L and 2.9L engines or 13-15
ft. lbs. on 4.0L engines.
Do not force the oil pump if it does not seat readily. The oil pump
driveshaft may be misaligned with the distributor shaft assembly. To
align, rotate the intermediate driveshaft into a new position.
Install the oil pan as previously described. The oil pumps are not serviceable. If defective, they must be replaced.
This Depends on a 2 Details, ENGINE Size 4by4 or NOT. Most are Fairly Simple Once the Oil Pan has been Removed and the OIL PAN is Normaly the HARDEST Part of it
AFTER OIL PAN REMOVAL
Remove the oil pump. Refer to Oil Pump, Pump Screen and Deflector Removal.
A loose screen or pipe assembly can result in an air leak and loss of oil pressure. For more information, refer to Oil Pump Clean and Inspect.
INSTALLATION PROCEDURE .
Install the oil pump and the oil deflector. Do not reuse the oil pump drive shaft retainer (4). During assembly, install a NEW oil pump driveshaft retainer. Refer to Oil Pump, Pump Screen and Deflector Installation.
Install the engine oil pan. Refer to Oil Pan Replacement
Remove the oil pump inlet tube and screen assembly.
Remove the oil pump attaching bolts. Lower the oil pump, gasket, and intermediate driveshaft from the crankcase.
To install, prime the oil pump by filling either the inlet or outlet port with engine oil. Rotate the pump shaft to distribute the oil within the pump body.
6-cylinder oil pump disassembled
V8 oil pump disassembled
Position the intermediate driveshaft into the distributor socket. With the shaft firmly seated in the socket, the stop on the shaft should contact the roof of the crankcase. Remove the shaft and position the stop as necessary.
Insert the intermediate driveshaft into the oil pump. Using a new gasket, install the pump and shaft as an assembly. Do not attempt to force the pump into position if it will not seat readily. If necessary, rotate the intermediate driveshaft hex into a new position so that it will mesh with the distributor shaft.
Torque the oil pump attaching bolts to 10–15 ft. lbs. on the 6-cylinder engines, and 22–32 ft. lbs. on the 302 V8.
Clean and install the inlet tube and screen assembly.