Question about Briggs Stratton H7159 & Stratton® 5500, 10 HP Generator

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Why is my generator leaking oil thru the engine?

Started the generator to let it run for a few minutes. Oil was pouring out thru the engine.

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Posted on Jan 02, 2017

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SOURCE: generator starts runs with a miss for a minute or

If you have good spark, clean air filter (replace anyways), try choking it half way or so. If it runs better, then it is running too lean, probably a clogged orifice or jet in the carb. If choking it makes it run worse, then it is likely running too rich. Could be a float problem, or metering tube that is clogged and isn't spraying.

Posted on Jun 12, 2010


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What is the problem of my generator to stop automatically

First thing to check is the oil, could be a low oil shut off which is a very good thing to have!

Any equipment the sits a long time, check the oil first. if hi, see if there is water in the bottom (rain thru exhaust), if hi but thin, gas leaked thru carb, piston rings, and into oil. do not run until drained and new oil.

Most common problem would be old fuel and or water in the fuel. any small engine with occasional use should be kept near full with hi octane fuel with fuel stabilizer in it. any gas I by in the can gets stabilizer in it, as modern fuel gets more like kerosine after a month or so, and who knows how long it will be before it or equipment burns it all up. Keeping it full also reduces condensation of water vapor in the tank.

If you can drain your fuel from the carb., do it. If not easy, then add a bottle (or less) of fuel line anti-freeze then add good hi octane fuel. A drop of water in the carb. will keep it from running, especially when cold, (when hot it will vaporize and then restart). occasionally a spray of starting fluid will help get started and suck good fuel into system.

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Gasoline in mixed with oil in the crankcase also oil pouring out from the valve cover. Runs rough and smokes badly. What are the possible causes?

Gasoline in the oil is indication of fuel leaking past the needle and seat when the engine is not running (also high pressure in the fuel tank). You may be able to continue to use the generator with weak needle and seat (change oil) , however you must shut off the fuel when the engine is off. Easy fix however by installing carb kit. Find model number of the engine (stamped on fan cover) and contact small engine repair shop or look on line. Do not run the engine with gas in oil. Good luck.

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How do i change my own oil in my 2008 grand prix

Raise the car.
Put a pan the holds at least 2 gallons under the oil plug
Loosen and remove the bolt in the very bottom of the oil pan and remove; the oil will flow out and into the pan.
Clean and replace the oil plug, tightening it snug. the plug has no load on it, you don't have to tighten it really tight. Tight enough to stay in and seal against the oil is all that's required. Of course, you also want to enure it doesn't fall out...
Unscrew the oil filter. (Use the appearance of the new one you bought as a guide for what you are looking for.) The filter is often difficult to remove. There are special tool for removing them — you should probably get one. DO NOT USE AN OIL FILTER WRENCH TO INSTALL THE NEW FILTER.
Dump the oil ou of the old filter sufficiently to handle it without sloshing.
Put the mounting surface of the new filter and the old filter together to ensure that the rubber rings are the same. Better to find out you have the wrong filter now that after you screw it on, and have your new oil leak out.
Pour some of the new oil into the new filter. Starting the engine will fill it up, but the longer it takes to fill, the longer the engine runs without a good supply of oil. The pre-filling you do shortens that period.
screw the new filter into place. Carefully find the point where the rubber sealing ring makes contact, and tighten the filter 1/4 turn farther. Do not over-tighten the filter.
Remove the oil filler cap on the top of the engine, and pour in 5 quarts of oil.
Look to ensure no oil is leaking. I once forgot to replace the oil plug and poured 5 Qts trough the engine onto the ground. That is bad enough. But if I had not checked before I started the engine I might have destroyed the engine as well..
Check the oil dipstick to ensure you have enough oil in the engine.
If no leaks, and enough oil on the stick, start the engine without using the gas pedal — just let it rise to an idle on its own.
Look under the car for any leaks. If the oil filter is the wrong one, or is improperly installed it will leak right away.
If no leaks after 1 or two minutes, lower the car and shut the hood.

Please dispose of the used oil responsibly.

Jul 08, 2010 | 2008 Pontiac Grand Prix

1 Answer


It maybe a crankshaft seal.
you will have to remove the genset from the engine.
Normally there is a Thru bolt aprox 12" long that is attached to the crankshaft.

1) remove the genset windings/housing from engine
2) remove the thru bolt
3) with a 2x4 block of wood laying on the metal of the armature (NOT the windings)
4) forcefully wrap with a large hammer, DO NOT hammer on the brushes/comutator bars. Only on the metal housing that has the windings around it.
*the shaft is tapered, and it will take a 'jar' to seperate the crank and the armature.

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I don't believe you have a problem with running your unit out in cold weather, it just does't make any since. There have to be a problem with the engine. If your unit is new or has been used very little, it is not broke in and has a to much blow-by. If this is the case you will find oil in your air clean and/or muffler. To fix it problem you need to change your oil and replace it with a organic oil which means not synthetic. Run your unit under 1/4 load for 15 minutes in your case about 15 amp at 120vac. This step it up to 30 amps at 120vac of 15 minutes then 45 amps for 15 min. Then about 60 amps for a good hour. After that step the unit back down to 45,30,and 15amps to allow the engine to cool-down properly. If you load your unit with 240vac instead of 120vac just divide the amps by two giving you 7.5, 15, 22.5, and 30amps. This should break your engine in. If you are still leaking/pushing out oil you more than likely have a bad seal, gasket, or something broken in you engine internally.

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2 Answers

How do you change the oil filter on a Hyundai Accent 1998/99?

Replace the oil filter after draining the old oil, and" BEFORE "adding new fresh oil, otherwise you'll be dump all that fresh oil, on the ground,while you "TRY to get the new filter installed.

Step 1 Remove drain plug,Drain oil into drain pan
Step 2 Remove oil filter
Step 3 Reinstall drain plug,qnce oil has drained.
Step 4 Fill new filter with oil,lube seal on filter.
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Step 6 Run engine check for leaks.
Happy motoring!

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