What does the idle sound like if timing is 14 vs 12 degrees

MrPerfect2 · Oct 3, 2019

91 5.0 - Got new wires , plugs ( champs gapped .051 ) rotor and cap - I don’t have timing light - car drives great and responds good - idle sounds a little like it’s a higher cam ( it’s stock engine ) no ping or knock though through band .

Wayne Waldrep · Oct 3, 2019

You must get at least a cheap timing light. Or rent one as a loaner tool which would be crazy.

MrPerfect2 · Oct 4, 2019

I Will buy one on amazon

Mustang5L5 · Oct 4, 2019

Idle shouldn't change.

You can rent a timing light from most parts stores.

LILCBRA · Oct 4, 2019

Agreed, a timing light is a must-have.

As for a stock engine that sounds like it has a little "chop" to it, vacuum leaks can give you that. WAY back when, I had a II with a 302 that sounded the same. Of course I didn't mind the sound at the time and it didn't affect the drivability or anything, but I found that the intake wasn't torqued down evenly OR to spec. Once I took care of that the engine idled smoothly.

Wayne Waldrep · Oct 4, 2019

I've had the same cheap timing light my whole life. Doesn't have to be expensive. You'll just be glad you have one.

My92cashtrap · Oct 4, 2019

Go to Harbor Freight and get their cheapie. Great reviews and lifetime off the shelf replacement if it breaks...

Noobz347 · Oct 4, 2019

MrPerfect2 said:
91 5.0 - Got new wires , plugs ( champs gapped .051 ) rotor and cap - I don’t have timing light - car drives great and responds good - idle sounds a little like it’s a higher cam ( it’s stock engine ) no ping or knock though through band .

12* = blum-blum-blip-blumb-blomb-blomb-blomb-blomb-blomb

14* = blim-blim-blom-blomb-blip-blom-blomb-blip-blom-blomb

Copied and pasted from the Ford Service Manual. Hope I don't get in trouble.

Gs1987GT · Oct 4, 2019

Noobz347 said:
12* = blum-blum-blip-blumb-blomb-blomb-blomb-blomb-blomb

14* = blim-blim-blom-blomb-blip-blom-blomb-blip-blom-blomb

Copied and pasted from the Ford Service Manual. Hope I don't get in trouble.

Lol!

FastDriver · Oct 4, 2019

Holy , Noobz! You owe me some of the coffee I just lost... LMFAO

Without an IAC, I actually can hear a difference when I change idle timing. Advancing it will increase RPM. It may make it slightly more or less raspy. All of that said, even though I've spent dozens of hours fine tuning my cars at idle and partial load, I could not walk up to my car at idle and tell you what the timing is based on sound alone. If someone else can, I'd love to learn that trick, but I'd be very skeptical of them before seeing proof.

General karthief · Oct 4, 2019

I couldn't tell you what it's timed at but a quick trip around the block and I know the air pressure in the left front tire.

MrPerfect2 · Oct 8, 2019

Found one small vacuum line unplugged - what does this part do btw - it runs better but still has some chop to idle ( looking for a timing light to buy cheap )

MrPerfect2 · Oct 8, 2019

It was the white wire on left unplugged

Noobz347 · Oct 8, 2019

EGR diaphragm.

That should have cleared up a couple codes.

MrPerfect2 · Oct 8, 2019

Can you put an Egr block plate here ?

Blown88GT · Oct 8, 2019

MrPerfect2 said:
It was the white wire on left unplugged

It's not a wire, it's a hard vacuum line. If it was unplugged, then it was a vacuum leak.

LILCBRA · Oct 9, 2019

MrPerfect2 said:
( looking for a timing light to buy cheap )

Probably about as cheap as you'll find. Hell, it's nicer than the light I have, *I* might just go pick one up!! lol

Xenon Advance Timing Light

Amazing deals on this Xenon Advance Timing Light at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

MrPerfect2 · Oct 9, 2019

On the topic of EGR - can you bypass it or any method used to prevent engine from using this exhaust gas , without throwing ECU into safe mode ?

revhead347 · Oct 9, 2019

MrPerfect2 said:
On the topic of EGR - can you bypass it or any method used to prevent engine from using this exhaust gas , without throwing ECU into safe mode ?

It's quicker and easier to throw a new EGR on it. It doesn't hurt performance at all. I skipped the block off plate, and just filled the hole with JB Weld. I couldn't make an EGR work with my intake setup.

Kurt

What does the idle sound like if timing is 14 vs 12 degrees

MrPerfect2

Wayne Waldrep

Before I post a pic, do you have one of yours?

MrPerfect2

Mustang5L5

That is…until I whipped out my Bissell

LILCBRA

I wish I didn't have all of these balls in the air

Wayne Waldrep

Before I post a pic, do you have one of yours?

My92cashtrap

Member

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Gs1987GT

Active Member

FastDriver

I was uncomfortably high & wearing a helmet

General karthief

wonder how much it would cost to ship you a pair

MrPerfect2

MrPerfect2

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

MrPerfect2

Blown88GT

LILCBRA

I wish I didn't have all of these balls in the air

Xenon Advance Timing Light

MrPerfect2

revhead347

Apparently my ex-husband made that mistake.

Similar threads

What does the idle sound like if timing is 14 vs 12 degrees

Before I post a pic, do you have one of yours?

That is…until I whipped out my Bissell

I wish I didn't have all of these balls in the air

Before I post a pic, do you have one of yours?

Member

Stangnet Facilities Maint Tech... Er... Janitor

Active Member

I was uncomfortably high & wearing a helmet

wonder how much it would cost to ship you a pair

Stangnet Facilities Maint Tech... Er... Janitor

I wish I didn't have all of these balls in the air

Apparently my ex-husband made that mistake.

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