SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

1991 Ranger 2.3 Timing Question?

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Old Jul 19, 2015
  #1  
Justin2015's Avatar
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From: Parker, KS
Icon5 1991 Ranger 2.3 Timing Question?

Timing light shows my Ranger at 25 degrees BTDC at idle. Is there any way to fix this?

Mud daubers made a nest in my timing belt and the dirt clods caused timing belt to slip.

I replaced the timing belt and tensioner.

1. I aligned the Crankshaft and number 1 piston to TDC.
2. I aligned the Camshaft Triangle to the 5 O'Clock Slot.
3. I faced the Oil Sprocket Diamond straight up. (There is no corresponding Diamond on the back cover, really.)

The engine fired right up, but idles rough and has some hesitation.

Timing Light shows 25 degrees BTDC at idle and advances to almost 30 degrees at 1800 RPMs.

Chilton calls for 10 degrees BTDC.

I have 2 square packs instead of a distributor.
 
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Old Jun 12, 2024
  #2  
RavenActual's Avatar
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Joined: Jun 2024
Posts: 1
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From: Leeds, Al
Originally Posted by Justin2015
Timing light shows my Ranger at 25 degrees BTDC at idle. Is there any way to fix this?

Mud daubers made a nest in my timing belt and the dirt clods caused timing belt to slip.

I replaced the timing belt and tensioner.

1. I aligned the Crankshaft and number 1 piston to TDC.
2. I aligned the Camshaft Triangle to the 5 O'Clock Slot.
3. I faced the Oil Sprocket Diamond straight up. (There is no corresponding Diamond on the back cover, really.)

The engine fired right up, but idles rough and has some hesitation.

Timing Light shows 25 degrees BTDC at idle and advances to almost 30 degrees at 1800 RPMs.

Chilton calls for 10 degrees BTDC.

I have 2 square packs instead of a distributor.
I have this exact problem. I have retimed this damn thing atleast 100x. It keeps showing P0340 CPS but I have replaced it twice with brand new part each time. I’m about ready to torch this damn thing. Sounds like I have a spark knock at about 1800 rpm’s but it’s in time according to TDC , Diamond and Triangle.
 
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