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#1
IP: 76.66.159.112
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Distributor Adjusting
I have done searches and even tried to find this simple answer in The Manual - what do I loosen to be able to rotate the distributor for timing tuning?? I cannot find this simple answer
Thanks for your help in even these small questions. Last edited by GregH; 10-09-2018 at 08:44 AM. |
#2
IP: 162.22.248.100
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There's a bolt and hold-down clamp at the base of the distributor on the reversing gear side. I believe it's a 9/16". If you pull up the 360 view of the engine on the home page and spin it around to the reversing gear end of the motor, you'll see it at the base of the distributor.
Hope that helps
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Rick Bushie s/v Anchovy, 1971 C&C 30-1, Hull #1 Tolchester, MD |
#3
IP: 184.176.196.206
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Isn't the distributor for TIMING tuning and not rpm tuning?
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Bill L. 1972 Ericson 27 Hull #61 Atomic 4 |
#4
IP: 73.178.188.222
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Yes...but I believe the Moyer Manual tells us to adjust timing to achieve best loaded rpm...or something like that.
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Rick Bushie s/v Anchovy, 1971 C&C 30-1, Hull #1 Tolchester, MD |
#5
IP: 192.186.122.174
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Yes you are correct - my bad.. edited |
#6
IP: 192.186.122.174
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Quote:
suggestions? - once loosened give the clamp a tap with the wrench? - little MMO to loosen things up? Last edited by GregH; 10-09-2018 at 08:51 AM. |
#7
IP: 24.152.132.140
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Using max loaded RPM as a timing indicator requires the advance weights to be in good, free moving and lubricated condition for a proper result.
Is there an aversion to setting timing to the marks with a timing light? That's what I did and my engine runs the best it ever has. If the factory marks are difficult to access or see, create your own (also what I did). http://www.moyermarineforum.com/foru...d.php?p=108158
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
#8
IP: 99.30.185.198
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"Ditto"
I could have just given Neil a "Thumbs up" stamp on his recommendation to read the previous thread about "timing light timing", but the difference in the way an A4 will start and run is such an improvement that I feel it is worth elaborating on. Proper timing and having a good fitting slash tube can eliminate the need for an aftermarket PCV valve.
Tom |
#9
IP: 192.186.122.174
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Quote:
Should I be able to take that clamp right off to make sure it isn't rusted/stuck without worrying about the dist moving? Then once know that attach it back on snug but enough so dist can rotate? How much effort does it take to rotate? |
#10
IP: 99.30.185.198
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Greg, It is not unusual for the distributor to be a little frozen in place. There is (or should be) a gasket between it and the block that needs to be freed up. I'd spray WD-40 on that area and then try tapping on the base of the dizzy with a drift. Once it is freed up, it will rotate very easily. During the actual timing process "snug" the hold down bolt enough so that you can still rotate it but don't have it loose enough the engine will rotate it. If you are using a timing light, it is important that the advance weights are fully retarded. Reducing the idle as much as possible should insure this. If your carb is clean and you do not have a PCV valve, an idle of about 700 rpm is normally attainable. I have found that I can adjust any of my carb's idle mixture screws to about 1-3/8 turns out and have a good "out of the box" idle. Hope this helps.
Tom |
#11
IP: 24.152.132.140
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If you see the same timing mark misalignment after reducing the idle RPM, this is the typical power timing error - a little on the advanced side.
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Neil 1977 Catalina 30 San Pedro, California prior boats 1987 Westsail 32, 1970 Catalina 22 Had my hands in a few others |
The Following User Says Thank You to ndutton For This Useful Post: | ||
GregH (10-10-2018) |
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