Briggs Dink-Dink

[RHA 0]

:)Hi everybody, I'm a Newbee,and I think this site is great.My question is is about a noise coming from my virgin 35 yr old briggs and straton horizontal shaft. It makes a dink-dink noise when idling,when you throttleup it goes away.This noise is not to be confussed with a knock-knock noise.It seems to be getting louder?? Counter weights??

[MrSteele 483]

You say "virgin" meaning, I assume, that you have never removed any parts from the engine, other than tuning. Have you removed the head as yet to see if you might have a carbon buildup on the top of the piston which might be bumping the head? That will occur at higher speed as well, but the sound is drowned by exhaust sounds and noises of the rest of the machine. If you have no desire to remove the head, adding Rislone to the gas, or a fuel system treatment in small quantities might change the sound. I regularly add Rislone to the tank, though it is supposed to be added to oil in automobiles. Makes the engine smoke a bit, but cleans the combustion chamber, as well. The best solution to this problem, if it is your problem, that I have come up with, is to run high test gas in all my small engines. I work on them a lot less than when I ran regular gas in them.

[MPH 12]

Migh try dribbling some Rislon down the carb while running for a quicker carbon clean out. Keep it running just abouve choke out point. If you got greeenie's for neibors better do it after dark.

[Tom Deutsch 0]

Is Rislone similar to "Seafoam"? Prefer one to the other for any reason?

[UCD 14]

Cheaper and just as effective is water in a windex bottle used as in Marty's suggestion above.

[MrSteele 483]

Rislone is an oil additive, as I believe, Seafoam is a gas additive? Favorite product for years, is actually Marvel Mystery Oil. With Marvel, if you are putting your engines away til next year, run the machine at about half throttle, start dribbling Marvel in the intake until the smoke starts, then increase until the engine dies. Put your air cleaner back in place and put the engine away for the season. When you want to start it up, remove the plug and clean it (might take several attempts), and start as normal. Works well with auto engines you don't expect to start for a while, as well. Have very few stuck valves that way.