 Need help identifying pinging sound cylinder 3 |
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| nditiz1 |
 Sep 10 2017, 02:15 PM
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#1
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Senior Member  Group: Members Posts: 1,202 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region 
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I recently adjusted my vales .06/.08 and also rebuilt my carbs. They were done separate and driven in between. I'm now noticing a pinging sound coming from the carb barrel on cylinder 3. If I put my hand over the carb throat it makes the sound go away. It is doing this at idle of ~950. I will load a video of the sound. What do you all think?
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| rhodyguy |
Sep 11 2017, 02:33 PM
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,188 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Try going the other direction. IN not out. It's an air by-pass. Backing a screw out will lower the needle reading. My snail type is the STE brand what is what I was referring too. I should have been more specific.
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| nditiz1 |
Sep 11 2017, 03:09 PM
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#3
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Senior Member Group: Members Posts: 1,202 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region
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QUOTE(rhodyguy @ Sep 11 2017, 12:33 PM)  Try going the other direction. IN not out. It's an air by-pass. Backing a screw out will lower the needle reading. My snail type is the STE brand what is what I was referring too. I should have been more specific. I'm confused. With all 4 bypass screws set to 1/2 half turn out #3 was showing 4.5 flow and 1,2,and 4 were showing ~4.9. I adjusted #3 out to bring it up to 4.9. I guess I could adjust #4 bypass in to bring it down to 4.5 and then adjust the idle speed on 1+2 carb down. This is only possible if I can go in far enough on #4 bypass to get it down to #3 barrel. |
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Posts in this topic
nditiz1 Need help identifying pinging sound cylinder 3 Sep 10 2017, 02:15 PM
nditiz1 Here is the link to the clip:
https://youtu.be/aS... Sep 10 2017, 03:29 PM DM_2000 I'm on a slow internet connection at the momen... Sep 10 2017, 03:35 PM nditiz1 Let me know what you think after you watch the vid... Sep 10 2017, 05:43 PM DM_2000 In the mean time, are you getting fuel standoff ab... Sep 10 2017, 06:43 PM porschetub Read this and thought the noise may be lean spitba... Sep 10 2017, 10:24 PM nditiz1 I did adjust the mixture screws and synched the ca... Sep 11 2017, 04:14 AM nditiz1 After doing some more reading, I realized I did no... Sep 11 2017, 06:43 AM nditiz1 Readjusted the idle bypass screws on all to 1/2 tu... Sep 11 2017, 09:44 AM rhodyguy Check the flow on each Venturi with all 4 air by-p... Sep 11 2017, 01:08 PM nditiz1 @rhodyguy
I originally had all seated. I then no... Sep 11 2017, 02:28 PM
porschetub You mentioned the carb on the effected side won... Sep 11 2017, 03:19 PM nditiz1
You mentioned the carb on the effected side won... Sep 11 2017, 03:31 PM |
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