Pinging Noise When Overheated
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Stage III
Joined: Feb 2008
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Pinging Noise When Overheated
Hey everybody.
Breaking in a 2007 Heritage Softail.
Just about to take in for the 1000 mile checkup.
Was in heavy, heavy traffic a couple of days ago and was idling alot. Could feel the heat of engine grow. When I would take off in 1st gear, it sounded like the engine was pinging, like there was no oil flowing. Once I got on freeway, it stopped. What is happening?
Thanks
Breaking in a 2007 Heritage Softail.
Just about to take in for the 1000 mile checkup.
Was in heavy, heavy traffic a couple of days ago and was idling alot. Could feel the heat of engine grow. When I would take off in 1st gear, it sounded like the engine was pinging, like there was no oil flowing. Once I got on freeway, it stopped. What is happening?
Thanks
Banned
Joined: Jan 2008
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From:
RE: Pinging Noise When Overheated
The fuel is detonating in the cylinder before the spark plug fires it. Not good. Basically it's like having the ignition timing advanced too much, causing the fuel to ignite while the piston is still on the compression stroke. So the pressure in the cylinder is pushing the piston down while it's still mechanically trying to come up in the stroke.
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Joined: Jan 2008
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RE: Pinging Noise When Overheated
Good fuel is a must! Good suggestion guys.
We have a max 91 octane here in AZ so I'll mix in a little VP 110 race fuel during the summer to keep from pinging. I also ride dirt bikes so I normally keep a 5 gallon jug of the stuff.
We have a max 91 octane here in AZ so I'll mix in a little VP 110 race fuel during the summer to keep from pinging. I also ride dirt bikes so I normally keep a 5 gallon jug of the stuff.
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Stage III
Joined: Feb 2008
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RE: Pinging Noise When Overheated
Just got off the phone with HD, they said try the higher octanes.
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Banned
Joined: Jan 2008
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RE: Pinging Noise When Overheated
Always buy the highest octane and best quality fuel that you have available to you for the scooter. These have such small tanks and get such great mileage that going cheap isn't going todo enough to justify the savings. Especially when you get issues like this.
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Joined: Mar 2007
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From: North Georgia
RE: Pinging Noise When Overheated
Are you buying gas from stations that dispense different fuel grades from a single nozzle?
You would be surprised how much fuel one of those fuel hoses holds beforeit begins giving you your premium-grade fuel choice. In a car gas tank taking 20 gallons at fill-up it may not matter.
But if you are only adding a couple of gallons (maximum 5 gallons), you might be getting a half-gallon or more of somebody else's "regular" before your fuel makes its way out the nozzle.
Whenever I can, I'll even go out of my way, I look for fuel stations that have dedicated fuel-grade nozzles.
You would be surprised how much fuel one of those fuel hoses holds beforeit begins giving you your premium-grade fuel choice. In a car gas tank taking 20 gallons at fill-up it may not matter.
But if you are only adding a couple of gallons (maximum 5 gallons), you might be getting a half-gallon or more of somebody else's "regular" before your fuel makes its way out the nozzle.
Whenever I can, I'll even go out of my way, I look for fuel stations that have dedicated fuel-grade nozzles.
Cruiser
Joined: Jul 2007
Posts: 143
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From: Glen Cove NY
RE: Pinging Noise When Overheated
Nice to havevp on hand to boost up the octainif its unleaded. If its leaded and youhaveo2 sensors on your bike you can kiss you sensors good by.
In NY we have 93 octaine at the pump.
In NY we have 93 octaine at the pump.