Line up timing on a 91 chevy 4.3L s10 pickup

SOURCE: I need to replace the fuel pump in my 1985 Chevy S10 Pickup.

EXACT PROCEDURE ! Please Rate Me Fairly for this!! Thank you And Good Luck !!


ELECTRIC PUMP

REMOVAL

1. Before servicing the fuel pump the fuel system pressure must be relieved. See: Fuel Pressure Release
2. Disconnect the negative battery cable.
3. Raise the car on a hoist.
4. Remove the fuel tank. See Fuel Tank / Service and Repair.
5. Remove the fuel tank sending unit and pump assembly by turning the cam lock ring counterclockwise. Lift assembly from the fuel tank.
6. Pull the fuel pump up into the attaching hose while pulling outward away from the bottom support. Take care to prevent damage to the rubber insulator and strainer during removal. After the pump assembly is clear of the bottom support, pull the pump assembly out of the rubber connector for removal. NOTE: Inspect the fuel pump attaching hose for any signs of deterioration. Also check the rubber sound insulator at the bottom of the pump. Replace damaged or deteriorated parts.

1. Push the fuel pump assembly into the attaching hose.
2. Position the fuel tank sending unit and pump assembly into the fuel tank. Use a new "O" ring seal. NOTE: Care should be taken not to fold over or twist the strainer when installing the sending unit as this will restrict the flow of fuel. Also, verify that the strainer does not block the full travel of the float arm.
3. Install cam lock over the assembly and lock by turning clockwise.
4. Reinstall fuel tank.

1. Disconnect fuel lines from fuel pump.
2. Remove fuel pump mounting bolts and the fuel pump.
3. Remove all gasket material from the pump and block gasket surfaces. Apply sealer to both sides of new gasket.
4. Position gasket on pump flange and hold pump in position against its mounting surface. Make sure rocker arm is riding on camshaft eccentric.
5. Press pump tight against its mounting. Install retaining screws and tighten them alternately.
6. Connect fuel lines. Then operate engine and check for leaks.

Johnny Brown

• 5763 Answers
• Posted on Feb 19, 2010

SOURCE: what are the timing specs for a 1991 chevy s10

the timing spec is 0degrees at idle, also heres adiagram for timing chain, check oil preasure switch connection and wiring to control module.hope this helps.

SOURCE: firing order for a 1999 chevy s10 pickup

I apologize for the late response...Due to the bad economic situation this site has had a substantial (+50%) increase in the number of questions being asked in the last four months.
I assume you have a 4.3L and not the 2.2L?

For the 4.3L:
Firing Order:
1-6-5-4-3-2

Cylinders:
6-----------5
4-----------3
2-----------1
(front of vehicle)

Distributor:
coil wire-->
-----6------->............<--------5-------
-----4------->............<--------1-------
-----2------->............<--------3-------
............(front of vehicle)

Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

SOURCE: Installing a new timing chain and sprockets on a

The number one cylinder.It is the front plug on the drivers side.Good luck.

Testimonial: "Thank you for the help. I have a Chilton's that sez #4 is the cylinder to set the timing to. My vast experience (?) tells me that timing should be set at #1 but I couldn't confirm that until you did. Thanks again!"

SOURCE: replacing timing chain 2000 corolla 1,8 eng

!!! Check first if engine valves are not bended !!!

The timing chain diagram & procedures for 2000 Toyota Corrola 1.8 engine:

Special tools:
1. Crankshaft pulley holder - Tool No. 09213-70010/11.
2. Crankshaft pulley puller - Tool No. 09950-50012.

General precautions:
1. Disconnect battery earth lead.
2. Remove spark plugs to ease turning engine.
3. Turn engine in normal direction of rotation.
4. Observe tightening torques in pictures below.
5. Do NOT turn crankshaft via camshaft or other sprockets.
6. Do NOT turn crankshaft or camshaft with timing chain removed.
7. Mark position of crankshaft position (CKP) sensor before removal.

Valve timing procedures:



1. Ensure crankshaft pulley and timing chain cover TDC marks aligned [1].
2. Ensure teeth timing mark on each camshaft sprocket aligned.
3. 1ZZ-FE/3ZZ-FE/4ZZ-FE [2].
4. 2ZZ-GE [12] OR [13].
5. If not, turn crankshaft pulley 360 degrees.
6. Remove chain tensioner, tensioner rail and chain guide.
7. Check chain for wear.