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OutofTime

Florida

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Posted: 03/21/23 08:55pm

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enblethen wrote:

Still sounds like you installed the distributor one tooth off!

If that were the case, how could I time it to 4 BTDC, then watch as the ECU correctly advanced it to 16 BTDC?

enblethen

Moses Lake, WA

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Posted: 03/22/23 06:22am

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You can get it to show timing correct, but the valves, crank and timing are not synchronized.
Nee to get timing mark for number 1 cylinder on mark, cylinder one in top of operation, pull distributor cap it should be pointing just before number one spark plug.

Bud
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OutofTime

Florida

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Posted: 03/22/23 11:56am

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Here's the engine bay pic.

https://www.dropbox.com/s/fd5l16px7aw42d5/20230322_133018.jpg?dl=0

enblethen

Moses Lake, WA

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Posted: 03/23/23 10:32am

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Looked at my rig this morning.
Number one plug wire is at 11:00 looking down on distributor.
It does not cross the cap.
My distributor connector is close to being at 9:00.
Did you transfer the plug wires one at a time or did you remove them all?

OutofTime

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Posted: 03/23/23 12:19pm

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enblethen wrote:

I moved them one at a time. Number one shouldn't be crossing the cap... Number one for me is the first post that is above the dizzy connectors on the left. I switched to a full ACDelco stack for the dizzy yesterday and we got it running poorly by timing it the old school way off of the TDC of cylinder 1. I needed to be able to turn the dizzy more to the right but the cap binds up against the intake and you can't. I'm going to try again and set the dizzy back one tooth and see what happens.

enblethen

Moses Lake, WA

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Posted: 03/23/23 03:16pm

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I would suggest backing up a little.
Manually rotate engine to get number 1 cylinder to TDC. Do not crank engine with starter. Use a socket and breaker bar to rotate engine. Use something like a straw not a socket extension.
Make sure the timing mark is on the timing mark. Use a mirror to view mark
Pull distributor cap off, verify rotor is pointing to number 1 plug wire location.

udidwht

Renton Highlands, Wa.

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Posted: 03/23/23 04:10pm

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This can come in handy for troubleshooting the TBI...

https://harristuning.com/Tbi/troubleshooting/

1994 Fleetwood Southwind Storm
P-30 chassis 7.4L 454 TBI 58,301 miles and counting....(as of 06/08/19)
VIN# 1GBJP37N4R3314754
Flight System Generator man 360 (PM me)

OutofTime

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Posted: 03/24/23 10:34am

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I realized this morning my timing gun's inductive clamp wasn't closing fully which would explain why I can't see spark on individual wires when testing. Fixing that particular issue should make timing much easier.