"Pop"
+ Reply to Thread
Results 1 to 9 of 9

Thread:
"Pop"

  1. #1
    Senior Member Deweydaddy's Avatar
    Join Date
    Jan 2009
    Location
    DBN./DBN HTGS. Michigan
    Posts
    1,544

    Default "Pop"

    Hey guys,
    Was wondering if I should be concerned about this , while warming my engine in the drive for an oil change.....also heard last time out on the lake at the dock warming engine......."a slight pop" out of the exhaust while I'm slightly tapping throttle to maintain a idle.....after idle is established, and engine warmed.....a throat clearing tap....950 rpm-2,000rpm....I get a slight "pop" out of the exhaust ......while in gear.....engine takes all I can throw at it....question....I'm I hearing just a slight "lean pop"? Hate to mess with the carb....1050 worked over....four corner adj.....runs well....other than this slight pop....thanks, Dewey
    I’d rather live with a good question than a bad answer.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member
    Join Date
    Dec 2007
    Location
    Tri-Cities, TN
    Posts
    1,676

    Default

    Quote Originally Posted by Deweydaddy View Post
    Hey guys,
    Was wondering if I should be concerned about this , while warming my engine in the drive for an oil change.....also heard last time out on the lake at the dock warming engine......."a slight pop" out of the exhaust while I'm slightly tapping throttle to maintain a idle.....after idle is established, and engine warmed.....a throat clearing tap....950 rpm-2,000rpm....I get a slight "pop" out of the exhaust ......while in gear.....engine takes all I can throw at it....question....I'm I hearing just a slight "lean pop"? Hate to mess with the carb....1050 worked over....four corner adj.....runs well....other than this slight pop....thanks, Dewey
    Dewey,
    Sounds like carb. I would start there. Other than the pop how does she run? How responsive is she?
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

  4. #3
    Senior Member Deweydaddy's Avatar
    Join Date
    Jan 2009
    Location
    DBN./DBN HTGS. Michigan
    Posts
    1,544

    Default

    Quote Originally Posted by cstraub View Post
    Dewey,
    Sounds like carb. I would start there. Other than the pop how does she run? How responsive is she?
    Chris.....it's amazing....what a difference!!! Instant power....nice cackle out of the exhaust.....Mike did a great job with the build....thanks for all your input too.... Dewey
    I’d rather live with a good question than a bad answer.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Lean is almost always thru the carb, not the exhaust. Is this a slight pop that is off rhythm, or a very noticeable POP on the header?



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  7. #5
    Senior Member bp298's Avatar
    Join Date
    Dec 2007
    Location
    LHC
    Posts
    6,570

    Default

    Quote Originally Posted by gn7 View Post
    Lean is almost always thru the carb, not the exhaust. Is this a slight pop that is off rhythm, or a very noticeable POP on the header?
    agree. but just for grins, i'd thoroughly check timing.

  8. #6
    Senior Member Deweydaddy's Avatar
    Join Date
    Jan 2009
    Location
    DBN./DBN HTGS. Michigan
    Posts
    1,544

    Default

    Hey guys, Thanks for responding, its a pop out the exhaust, when I rev to maybe help warm and to get a good idle......I also don't stand on it out of gear. Its happened once or twice when I got to the sandbar too.....I push the in and out lever out gear.....and while still gliding into sandbar, I'll give it a lil stab, and a pop comes out the exhaust.....not all the time tho.......
    I’d rather live with a good question than a bad answer.

  9. #7
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Quote Originally Posted by Deweydaddy View Post
    Hey guys, Thanks for responding, its a pop out the exhaust, when I rev to maybe help warm and to get a good idle......I also don't stand on it out of gear. Its happened once or twice when I got to the sandbar too.....I push the in and out lever out gear.....and while still gliding into sandbar, I'll give it a lil stab, and a pop comes out the exhaust.....not all the time tho.......
    What's timing, and are you running a mechanical advance. Has this motor ran before and you changed the cam, or is it a new build?



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  10. #8
    Senior Member Deweydaddy's Avatar
    Join Date
    Jan 2009
    Location
    DBN./DBN HTGS. Michigan
    Posts
    1,544

    Default

    Yes it's a new build....msd dist with mech adv.....only had the new motor out 5-6 times.....I set timing to 34 full adv....it's all in by roughly....2,600 rpm's.....haven't run the boat in a couple weeks on the water.....past few days in the mid 90's!!!! Major cold front coming through now.....sever storm warnings....66 for highs this weekend.....don't think I'll do much with it this weekend......
    I’d rather live with a good question than a bad answer.

  11. #9
    Senior Member
    Join Date
    Apr 2010
    Location
    Rocklin, Calif.
    Posts
    1,394

    Cool

    Quote Originally Posted by Deweydaddy View Post
    Hey guys,
    Was wondering if I should be concerned about this , while warming my engine in the drive for an oil change.....also heard last time out on the lake at the dock warming engine......."a slight pop" out of the exhaust while I'm slightly tapping throttle to maintain a idle.....after idle is established, and engine warmed.....a throat clearing tap....950 rpm-2,000rpm....I get a slight "pop" out of the exhaust ......while in gear.....engine takes all I can throw at it....question....I'm I hearing just a slight "lean pop"? Hate to mess with the carb....1050 worked over....four corner adj.....runs well....other than this slight pop....thanks, Dewey
    With four corner Idel make sure there ALL adj. the same...had the same problem and One air-fuel screw was out 1/8" turn than the rest
    cleared it right up

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95