Question about Ryobi 10 in. 30 cc Gas 4-Cycle Cultivator RY64400A

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Oil leak from ry64400

Oil leaks from my ryobi ry64400 model

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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diodeic
  • 1622 Answers

SOURCE: RYOBI ECS-1835/ECS-2040 leaking oil when

Hi, the question i have to ask is this ,, When last did you service the Engine??

ENGINE VACUUM LEAK DETECTION

Okay, now that we have covered what a vacuum leaks do, how do you find components that leak vacuum? One way is to visually inspect all the vacuum hoses and connections. Look for disconnected, loose or cracked hoses, broken fittings, etc. Hey, you might get lucky and find the problem in a few minutes, or you might waste half the day trying to find the mysterious leak. Vacuum leaks are often the elusive needle in a haystack. And if it is not a hose leaking vacuum but something else such as a gasket, worn throttle shaft, injector O-rings, etc., you may never find it using this technique.

A faster technique for finding intake manifold vacuum leaks is to get a bottle of propane and attach a length of rubber hose to the gas valve. Open the valve so you have a steady flow of gas. Then hold the hose near suspected leak points while the engine is idling. If there is a leak, propane will be siphoned in through the leak. The resulting "correction" in the engine's air/fuel ratio should cause a noticeable change in idle speed and/or smoothness (Note: on engines with computerized idle speed control, disconnect the idle speed control motor first).

Aerosol carburetor cleaner can also be used the same way. CAUTION: Solvent is extremely flammable, so do not smoke or use it if there are any sparks in the vicinity (arcing plug wires, for example). Spray the solvent on suspected leak points while the engine is idling. If there is a leak, the solvent will be drawn into the engine and have the same effect as the propane. The idle speed will suddenly change and smooth out.

TIP: If you have a scan tool, look at the Short Term Fuel Trim (STFT) value while you are using carb cleaner or propane to check suspected vacuum leak points. If there is a leak and some of the cleaner or propane is sucked in through the leak, you will see a momentary drop in the STFT reading. This confirms you have found a leak (keep checking because there may be multiple leaks!).
USING SMOKE TO FIND ENGINE VACUUM LEAKS

smoke leak detection machine A much safer technique is to use a smoke machine. These machines feed artificial smoke into the intake manifold, The smoke may also be mixed with an ultraviolet dye to make leaks easier to see. You then look for smoke seeping out of hoses, gaskets or cracks in the manifold and/or use a UV light to find the leak. This type of equipment is often needed to find small air leaks in the EVAP (evaporative emissions) control system. Smoke machines can cost $600 to $2000 or more depending on the model and features, so they are primarily for use by professional technicians.

Posted on Apr 21, 2011

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SOURCE: When in operation the Ryobi S430 string trimmer

Ryobi told me the unit can't have the s430 trimmer bottom end raised higher than the engine at any time, or it will leak. Apparently they released a product to compete with other companies for cheap 4 cycle trimmers without much care for the end user.

Posted on Mar 26, 2012

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