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Topic: Ignition Timing?  (Read 4174 times)

Guest

Ignition Timing?

« on: April 26, 2005, 10:04:18 PM »
I have an AE engine in my 1974 Ghia and according to the maintenance manual this engine was made from Aug 1970 to Sept 1971.  I was told to set the timing at 7.5 degrees BTDC, but I have a flat ot dead spot when accelerating.  Now according to THE MANUAL I should set the timing at 5 degrees ATDC.

I need some advice.  Godfather!!

Offline Ret.Bugtech

Ignition Timing?

« Reply #1 on: April 27, 2005, 09:16:15 AM »
I think we are going to have to have a  Ing. Timing Tech 101 class very soon for club members. If I get asked 50 questions, 49  will be on some kind of timing problem or flat/hesitation spots.
  Dennis, Does your engine have a 009 dist. and a 34mm carb ? Is it a "bone stock" 1600cc ?   If so, dump the 009 and get a good vacumn dist. to start with. 009/34mm NOT a good thing. How many and where are the marks on your pulley ?  Do you know where "0" degress is?.  Do you have a timing light with a advance scale on the back? Do you know what your Total degrees advance is ? THIS IS CRITICAL !!
 Dennis, Im not trying to be a "smart ass" But you need to know these things .  EVERYONE driving a AirCool VW needs to know these things.
  If we could get everyone in one spot at one time with a few cars to play with that have the problem, maybe we can solve all of this. I`ll say it again: This ain`t Rocket Science Guys. :lol:

Guest

Ignition Timing?

« Reply #2 on: April 27, 2005, 09:44:04 AM »
Ok, I think you answered my question.  Next meeting we should get together and talk about the timing light and other stuff about carburetors and distributors.

Thanks

Offline vwherb

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Ignition Timing?

« Reply #3 on: April 29, 2005, 08:08:58 AM »
Dennis, did your car run any better after I set the timing the other day?

Offline Ret.Bugtech

Ignition Timing?

« Reply #4 on: April 29, 2005, 08:33:40 AM »
Oh My God !!!!!  Dennis, don`t tell me that you let Herb set your timing
    Arggggggg !!!!!      JUST KIDDING,
 
    Herb, Im curious where Dennis`s timing was before you reset it. Total advance that is.

Offline vwherb

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  • McDonald, TN
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Ignition Timing?

« Reply #5 on: April 30, 2005, 09:33:33 AM »
Total was about 10 or 12. Setting it right made a big difference. :D

Offline Ret.Bugtech

Ignition Timing?

« Reply #6 on: April 30, 2005, 11:07:56 AM »
Good deal !    I bet the Ghia was a sick puppy. Was Dennis using the 5 ATDC mark ?

Offline vwherb

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  • McDonald, TN
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Ignition Timing?

« Reply #7 on: April 30, 2005, 06:13:42 PM »
He has a degree marked pully.

Offline cindy

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  • Harrison, TN
  • Joined: Dec 2001
  • Posts: 1311

Ignition Timing?

« Reply #8 on: April 30, 2005, 08:31:38 PM »
Lamar has offered to host this event in our backyard driveway.  Just let him know when you want to do it.  Just not this next weekend...

Offline vwherb

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  • McDonald, TN
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Ignition Timing?

« Reply #9 on: May 01, 2005, 08:59:22 AM »
That sounds like a plan.........................will there be any goodies??? :D

Guest

Ignition Timing?

« Reply #10 on: May 12, 2005, 05:48:28 PM »
Well I finely found out what was wrong with my Ghia, I let Herb re-time it so I could blame him for all my problems, but he did it right, so I couldn’t fuss at him.  I bought a header with a glass pack muffler at BAP and I had a 009 distributor, so I replaced both at the same time.  That is when I asked if anyone knew where the timing should be.  The engine had a dead spot or hesitation every time I started out and when I shifted gears.  After Herb re-set the timing, it still had the same problem (sorry Herb) so I replaced the 009 distributor with the stock one.  Now I was really getting frustrated because the engine performance did not improve.  I was looking at the under side of the engine a few days later, you guys know how it is, we have to look under the engine every once in a while just to see how things are, and I noticed that part of the exhaust pipe was rubbing against the frame.  I then replaced the glass pack with my stock muffler and much to my surprise the engine runs just like a new one, so I replaced the stock distributor with the 009 and it still runs like a new engine.

Almost everyone I told about this said it needed the backpressure that the stock muffler had.  Now I ain’t no Rocket Scientist but that just didn’t sound right, but I just drove the car and enjoyed the performance.  

Night before last my son called and I was telling him about the problem and he asked me if the heat riser was open on the header and of course my response was “Say what?”.  He told me he had the same problem last winter and someone told him to check the heat riser because sometimes they don’t drill out the hole.  When I checked mine, they were not open or drilled so the intake manifold was not getting any heat, which is what caused the poor performance. I drilled them out and reinstalled the glass pack and the engine is running just fine.

So what I am trying to say in this looooong story is that if you put headers on your car and you have a single carburetor, check to make certain the heat risers are open.

Offline Ret.Bugtech

Ignition Timing?

« Reply #11 on: May 12, 2005, 08:15:39 PM »
Hey Dennis , Good point. Im trying to remember if I have ever seen a header pipe heat riser that wasn`t drilled out. I don`t why they wouldn`t drill it out, but this is something to look for. Cudos to your son. :thumbs-up:

Guest

Ignition Timing?

« Reply #12 on: May 12, 2005, 09:00:06 PM »
The only reason I can think of is the manufactors think that if you are putting a header on you must have dual carbs, which would save you from having to buy a heat riser block off kit.

I am just glad my son is smarter than his old dad.

Offline Ret.Bugtech

Ignition Timing?

« Reply #13 on: May 13, 2005, 08:21:23 AM »
Dennis. Know the feeling about smart Kids.  Kind`a embarrassing when the old "50 Mission Dude " learns a new trick from the student pilot huh! :lol:

Guest

Ignition Timing?

« Reply #14 on: May 14, 2005, 08:06:50 PM »
If I had been driving VW’s as long as I have been driving airplanes I would have known what the problem was.  However if my son had helped me with an aviation problem nobody would have known about it except me and him, Ha, Ha,

But, in all seriousness, I learned more about handling airplanes and aviation in general as a flight instructor then any previous flight training I had.

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