89 s-10 2.5 distributor ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sleepertruck72 · 12-11-2015, 06:32 PM

I am trying to get a truck running for a friend of mine. 89 S-10 2.5. The distributor was removed. I stabbed it with #1 cyl at TDC, rotor pointing at #1 terminal. The injector will not spray fuel . If you wiggle the black/red wire into the distributor it will pulse the injector. I suspect its bad wiring/sensor inside the distributor...I will try another distributor. Also, compression is 145-150 on all cylinders... My question is : can the distributor can be installed using any terminal as #1 or is there a certain orientation of the distributor ? I really don't want to pull the timing cover to check for timing marks just yet

Zane M · 12-11-2015, 11:50 PM

As long as the #1 piston is at TDC on the compression stroke, you can make whatever terminal the rotor is pointing at when you drop it in number 1.

sleepertruck72 · 12-12-2015, 02:51 AM

Quote:

Originally Posted by Zane M

As long as the #1 piston is at TDC on the compression stroke, you can make whatever terminal the rotor is pointing at when you drop it in number 1.

Zane M,
I thought so.. I guess I need to do some more work

Thanks !

**Warrens69GMC** · 12-13-2015, 04:39 PM

Quote:

Originally Posted by sleepertruck72

I am trying to get a truck running for a friend of mine. 89 S-10 2.5. The distributor was removed. I stabbed it with #1 cyl at TDC, rotor pointing at #1 terminal. The injector will not spray fuel . If you wiggle the black/red wire into the distributor it will pulse the injector. I suspect its bad wiring/sensor inside the distributor...I will try another distributor. Also, compression is 145-150 on all cylinders... My question is : can the distributor can be installed using any terminal as #1 or is there a certain orientation of the distributor ? I really don't want to pull the timing cover to check for timing marks just yet

Pull the valve cover and set timing with both valves closed on #1. Super easy on this motor.

sleepertruck72 · 12-15-2015, 12:03 AM

Quote:

Originally Posted by Warrens69GMC

Pull the valve cover and set timing with both valves closed on #1. Super easy on this motor.

Warrens69GMC,
I will as soon as I go back over there on Friday ...its a 45 minute drive

I do have another question.. I removed the distributor..It seems there is no slot for the distributor to line up and drive the oil pump ...Is this not like the old SBC ? Or is something broken ? Thanks

Myself · 12-28-2015, 09:20 PM

Yes, it should have a flat on the bottom to drive the oil pump.

12-11-2015, 11:50 PM	#2
Zane M Registered User Join Date: Dec 2006 Location: SLC, UT Posts: 706	Re: 89 s-10 2.5 distributor ? As long as the #1 piston is at TDC on the compression stroke, you can make whatever terminal the rotor is pointing at when you drop it in number 1.

12-28-2015, 09:20 PM	#6
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,144	Re: 89 s-10 2.5 distributor ? Yes, it should have a flat on the bottom to drive the oil pump.

12-11-2015, 06:32 PM	#1
sleepertruck72 Registered User Join Date: Nov 2007 Location: Turlock California 95380 Posts: 2,075	89 s-10 2.5 distributor ? I am trying to get a truck running for a friend of mine. 89 S-10 2.5. The distributor was removed. I stabbed it with #1 cyl at TDC, rotor pointing at #1 terminal. The injector will not spray fuel . If you wiggle the black/red wire into the distributor it will pulse the injector. I suspect its bad wiring/sensor inside the distributor...I will try another distributor. Also, compression is 145-150 on all cylinders... My question is : can the distributor can be installed using any terminal as #1 or is there a certain orientation of the distributor ? I really don't want to pull the timing cover to check for timing marks just yet __________________ 72 C20 Longbed 05 1500 Z71



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