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02-28-2016, 02:18 AM | #1 |
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Join Date: Jan 2014
Location: Melbourne, Australia
Posts: 34
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Timing Question
I attempted to do the timing on my 1930 tourer today according to the Les Andrews method. After numerous attempts I could not get the points indicator light to come on until about 5 stops down on the spark advance lever. I observed that when the spark advance is moved nothing happens at the distributor until about 3 stops down due to free play in the linkages. Due to this and control rod length issues I am also a fair way off getting full advance
Being RHD new or reproduction control rods are hard to come by in the correct length. Does anyone have any suggestions to reduce the freeplay, or sources of adjustable control rods? The socket end of each control rod is bigger than the ball joints. Greg |
02-28-2016, 02:31 AM | #2 |
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Re: Timing Question
Yea your going to need to get rid of that play. Here in the states vendors sell a "Spark Control Rod Adjustable Sleeve"
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02-28-2016, 11:16 AM | #3 |
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Location: Mpls, MN
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Re: Timing Question
Are the balls too worn, or are the ends of the links too large?
You can always cut and weld linkages, or make an adjustable sleeve for the cut links. I'm not familure with the RHD, but if you have a bellcrank and the pivot hole has slop, then that needs to be welded and drilled, or install a bushing to remove the slop. |
03-01-2016, 12:55 AM | #4 | |
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Re: Timing Question
Quote:
If the balls are worn what is the best way to fix them? Greg Last edited by bluedog; 03-01-2016 at 05:50 AM. Reason: Typo |
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03-01-2016, 02:33 AM | #5 |
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Re: Timing Question
I've never had to build them up, but a bit of brazing would probably be the easiest fix.
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03-01-2016, 08:50 AM | #6 |
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Re: Timing Question
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Bill W.
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03-01-2016, 09:10 AM | #7 |
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Re: Timing Question
A lot of people run their car with the spark down just half way. If you car has a nice cackle with the spark up, and has good power with it down fully, you may be ok by just leaving things alone. Your full down position should be close to half way down on a system with little slop.
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03-01-2016, 09:40 AM | #8 |
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Location: Illinois
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Re: Timing Question
Farmer Fix: Move the spark retard lever down to those 2-3 clicks and then re-time it again using the same method. This should compensate for that wear you are experiencing with the worn linkage and disti gear. So when you want to be at full retard just move the lever all the way up. This was common back in the day.....
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03-01-2016, 04:57 PM | #9 |
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Re: Timing Question
Again the old mention of the NuRex timing tool may be a help here. In using this tool, it gets things close and once that is done, then you can use the other methods people always mention to "High" tune it or it may be right on. BTW all the vendors sell this tool.
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Fred Kroon 1929 Std Coupe 1929 Huckster |
03-01-2016, 05:23 PM | #10 |
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Re: Timing Question
I attribute my need for 15 degrees adjustment to worn out everything. Les's method got me close. I straightened my rod also. It was bent to clear a horn mount. Moved that out of the way.
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03-01-2016, 05:24 PM | #11 | |
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Location: Anchorage, Alaska
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Re: Timing Question
Quote:
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03-01-2016, 08:58 PM | #12 |
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Re: Timing Question
After you've experienced Model A's for quite awhile, if it starts & runs, you can fine tune the TIMING by EAR!
I've tiped the procedure, many times! Find it on "search" as I'm too TUCKERED out to tipe it agin! Bill Exhausted
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03-04-2016, 11:15 PM | #13 |
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Re: Timing Question
What I did was slightly bend the control rod so that you have full contact with the far side of the notch in the distributer housing when the lever is all the way up and when all the way down you should have contact at the closest side of the notch. Do this before you time your spark. Other wise you have to rotate your steering column to make the correction.
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03-05-2016, 12:27 PM | #14 | |
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Re: Timing Question
Quote:
After I rebuilt my distributor, after putting it in my coupe, I timed it the way that many of you have used for years. It started and ran great. Then I checked it with the NuRex and was able to see exactly where the wrench should show on the 4th plug stud. So in the future when using the NuRex, I will know exactly where to set it to get the best timing. In the past when I used the NuRex, I did not know exactly when to stop it on the 4th plug stud. It does make a difference going a fraction of a revolution plus or minus when turning the cam and lining up with the 4th stud. Anyway that has been my experience with the NuRex. It is worthwhile it to have it in your tool box to use when needed as CarlG pointed out or anytime you want to time doing it the "lazy" way.
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Fred Kroon 1929 Std Coupe 1929 Huckster |
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