B&s 18hp vanguard

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Thread: B&s 18hp vanguard

  1. #1
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22

    B&s 18hp vanguard

    hi would anybody have a repair manual for a 18hp vanguard? Having issues with my response.

  2. #2
    Join Date
    Sep 2010
    Location
    rhode island
    Posts
    709
    can't find it on;ine?

  3. #3
    Join Date
    May 2009
    Location
    NJ 08533
    Posts
    5,055
    What is your issue (S)?


    My new beer holder spilled some on the trails - in it's hair and down it's throat.
    Joe Camel never does that.

    Advice is free, it's the application that costs.

  4. #4
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22
    My engine the muffler is glowing red i changed the fuel pump dint make a difference changed fuel lines and filter still nothing cleaned the carb like 6 times changed air filter still nothing it keeps fouling plugs plug come out black and puffs black smoke and when shutting it down after running it it back fires plz help its bugging me its start real good some times it starts fine without choke and sometimes you need choke the compression is at 170 in one and 168 in the other and adjusted the valves

  5. #5
    Join Date
    Nov 2020
    Location
    Southwestern Ont Can about 5 miles from Lake Huron just north of the town of Goderich.
    Posts
    201
    From what I have been reading it could be timing. You said the engine backfired. It can jar the flywheel enough to shift on the crank enough to throw it out of time slightly. It could be a lean carb, although with what you have described in the fuel area, doesn't sound like fuel unless your high speed jet is blocked partly and not getting the proper fuel. The Vanguard carbs are kind of finicky. Have you put the carb through an ultrasonic bath? The plug may be fouling due to a rich idle circuit. Or it could be a leaking exhaust valve. You could have sufficient compression for the engine to run ok and the compression may be higher in a cold engine when likely you have done your compression tests. As the engine heats up everything expands which COULD, not saying it will, but could decrease the ability to close off you exhaust valve properly. These are just things I have read on different small engine sites. While I have had engines that the muffler glowed red, I never did anything about them.

  6. #6
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22
    Whats the best way to check to see if the valves close properly? And how do I check for timing does it have a key for the flywheel ? Can you see it ? And no just cleaned the carb with carb cleaner

  7. #7
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22
    I put a ignition timing tester ?on it it seemed ok

  8. #8
    Join Date
    Nov 2020
    Location
    Southwestern Ont Can about 5 miles from Lake Huron just north of the town of Goderich.
    Posts
    201
    The only way I ever checked for timing was when it had a set of points. Otherwise I would check to see if the flywheel had shifted by either pulling the flywheel or at least getting to a point where I could see if the flywheel had shifted. Make sure that your valve clearence is proper. I believe that it is .004-.006 on both intake and exhaust. If not as the engine gains temperature the valve lash gets less and the valve may not close properly.

  9. #9
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22
    Oh ok ill try and check the flywheel tonight I'm in the process of installing a alternator so its a good time to check if I pull the fan off should I be able to see the key ?

  10. #10
    Join Date
    May 2013
    Location
    Capreol,ontario
    Posts
    22
    I did check the valve clearance and adjusted them

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