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Old 02-09-2019, 03:50 PM
cafournet cafournet is offline
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Join Date: Feb 2019
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Default 85 Ranger - 88 t-coupe swap

1988 thunderbird turbocoupe 2.3l. Just had my engine rebuilt not too long ago. I got the engine to startup and it will idle. But when I try to time it, trying to do “shining light” test on the #1 spark plug. Whenever I try to move the distributor to set it about 10°-15° below top dead center, it engine will start to sputter and choke itself dead. Right now it’s about 25° below (where it’s idling; roughly). This engine though it is turbocharged it should be similar to the naturally aspirated 2.3. .

I did unplug the SPOUT before trying anything. Just was wondering if anyone had some advice on what I should be doing or what I am doing wrong

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Last edited by cafournet; 02-09-2019 at 06:05 PM.
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Old 02-10-2019, 06:25 AM
tomw0 tomw0 is offline
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Posts: 922
Default Re: 85 Ranger - 88 t-coupe swap

Since it was just put back together, I'd check the cam timing. The spark timing is normally set to 10BTDC, ten degrees before top dead center. That means the timing light should flash when the notch on the pulley is more toward the drivers side of the marks on the belt cover.
You can set the crankshaft to TDC, using the marks, or by setting the keyway in the nose of the crankshaft to 12:00 o'clock. Then remove the plastic plug behind the upper radiator hose and look at the edge of the cam sprocket for the triangle mark. The triangle should line up with a pointer or mark on the front of the cylinder head. If not, the cover must be removed and the timing belt adjusted to make it so.
If you are running low fuel pressure, the engine may tend to stall when you attempt to use more fuel(increase rpm). A gunky MAF, if you have one, can also lead to stumbling on acceleration/throttle opening.
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