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1992 PCM Ford with Pro tech timing question

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dpkumph View Drop Down
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    Posted: January-17-2025 at 2:58pm
Thanks again, yes I have that same manual. With the boat covered for winter, I'm not able to dig in to see how this is actually adjusted - nuts and bolts.  This confirms it all and makes sense - super helpful. I understand these systems don't last forever and the replacement is back to a distributor, but I want to at least make sure it is where it is supposed to be until that day, especially after the carb rebuild. Going to be single digits here next week so we got a ways to go until spring. Again, thank you very much.< id="idg-io-safe-browsing-enabled" ="" oninit="true">
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: January-17-2025 at 2:31pm
That's OK, I was kinda wondering where you were gonna be running the boat this time of year in NH. Wink

I edited the previous post to say     18 degrees at 700 rpm  then just connect the knock sensor and the timing adjusts itself automatically after that depending on the computer inputs.

Here's a link to a manual that maybe you already have or maybe not


It talks about ProTec and timing on pages 29 thru 31. It's from the manuals section on planetnautique.




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Post Options Post Options   Thanks (0) Thanks(0)   Quote dpkumph Quote  Post ReplyReply Direct Link To This Post Posted: January-17-2025 at 1:42pm
Thank you very much Keno (the first line had me grit my teeth for a second, LOL).
This is very helpful. Now I just need it to be April....
Happy new year, much appreciated.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KENO Quote  Post ReplyReply Direct Link To This Post Posted: January-17-2025 at 1:12pm
I think you'd be better off asking this question on planetnautique. Just kidding, Jonny Quest made me say that Wink

Just like you're thinking....there's a clamp, you loosen the bolt and turn the puck just like turning a distributor.

CW to advance the timing, CCW to retard it.

On that engine 18 degrees BTDC at 700 rpm with the knock sensor disconnected, then connect it back up when you're done.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dpkumph Quote  Post ReplyReply Direct Link To This Post Posted: January-17-2025 at 10:07am
Hello, I recently bought a 1992 Supra Impulse with Ford PCM pro-tec. The boat has low hours and in good shape but the carb needed a rebuild, which I had done and tested. Per the PCM manual, I want to check / set initial timing after reinstalling the carb but not sure how to adjust it. The PCM manual says the only adjustment needed on these is setting initial timing, so I presume it can be done. Is there a small clamp on or under the interrupter / "puck" that can be loosened to rotate it like a distributor? Any help is very much appreciated. I searched for this topic on multiple forums and didn't find it. thanks for any info! Doug from NH
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