Motorcycles:
two-stroke
Motorcycles:
four-stroke
Cars
and light trucks: Gas-powered
Cars
and light trucks: Diesel-powered
ATVs,
skidoos etc.: two-stroke
ATVs,
skidoos etc.: four-stroke
Our advice applies to all forms of engine-powered home and garden equipment. This includes:
Lawn
mowers
Lawn
tractors
Leaf
blowers
Garden
tillers
Edgers
and trimmers
Chippers,
shredders and mulchers
Portable
compressors
Chainsaws
Snowblowers
Pressure
washers
Generators
Click any of the above links and use the information there to identify your machinery's engine type. There are two types. The approach differs depending on whether your machine has a type 1 or type 2 engine.
Agriculture equipment falls into three categories. Identify your engine type and click the link below to read instructions on using Engine Release to free your seized engine.
Agricultural
Diesel engines
Agricultural
Gas engines
John
Deere horizontal engines
We have split our coverage into three areas: two-stroke outboard motors, four-stroke outboard motors and inboard Gas or Diesel engines. Click the links for full instructions on using Engine Release to free seized-up marine engines.
Two-stroke
outboard motors
Four-stroke
outboard boat motors
Inboard
Gas or Diesel marine engines
A gas agriculture engine can seize during storage or long periods of disuse. The best treatment for a seized agricultural gas engine is Engine Release.
These instructions are for any agriculture machinery with gasoline engines.
Regardless of the type of engine and vehicle you intend to work on we have specific instructions for your project on our site. Click the links on the left-hand menu to be directed.
This page provides instructions for using Engine Release to free up machinery powered by a seized gas engine. It works, OR YOUR MONEY BACK. Click here for more about our no-quibble return policy.
VERY IMPORTANT!
Once you have read these instructions, if technical support is required with your project please email us for advice, we will reply ASAP.
Warning: Read safety warnings on the Engine Release container before continuing. Click here to read the safety information online BEFORE treating a gas agriculture engine with Engine Release.
Engine release will damage paint finishes.
Before working on your tractor, combine, swather, etc. make sure it is on level ground with the parking brake on or the wheels blocked, so it can't move, with the transmission in neutral and the fuel supply turned off
Most farm equipment has vertical exhausts. If you think your gas agriculture engine seized because rainwater got into it by the exhaust pipe, remove all your spark plugs. If corroded or seized, a few drops of Engine Release on the plugs' threads will make frozen plugs easy to remove. (Let it soak in for 15 to 20 minutes.)
It's a good idea to identify each ignition wire with either a numbered tag or tape so as not to mix them up when you reconnect them.
To empty out the flooded cylinders, purchase a large plastic turkey baster and about 24" of clear plastic hose that will tightly push fit over the end of the baister and still have a small enough out side diameter to pass through your spark plug holes.
Now one by one check your cylinders for water using the baster. Also if you have failed to free up your gas agriculture engine previously using Mystery Oil, vinegar, water, ATF, diesel fuel, WD40 or others, it's important to remove all traces of the above with your baster so as not to dilute the Engine Release you inject into your engine.
It's a good idea not to try and force more hose down the spark plug hole than is required to just touch the top of the piston so you can remove the majority of the water you may find. Pushing more hose into the cylinder than is required will just force the end of the hose to curl up in the air, not touching the water and defeating the purpose of this exercise.
If your gas agriculture engine seized because you have not used your equipment for a while and it was stored indoors or under cover and you are sure only airborne humidity entered your engine, don't bother with the turkey baster.
Once you've got your ignition wires disconnected from your plugs and identified and you've removed all your spark plugs, use your injector bottle to wet each cylinder with 1 oz of Engine Release once a day for three days.

The idea is not spray Engine release onto the top of the pistons, but by using the injector bottle depositing the Engine Release between the cylinder wall and the edge of the piston crown in each cylinder. If you allow the Engine Release time to seep in and around the gas agriculture engine's rings over a period of days you will easily free up your gas agriculture engine.
This photo is of a 4¼" diameter cylinder, here you see 1 oz of Engine Release is more than enough to cover everything required and then some! Refreshing the Engine Release in each cylinder daily keeps the corrosion dissolving additives active while the liquid Engine Release works it's way down and around the piston’s rings and eventually wetting the skirt, freeing up the cylinder and making engine starting easy.
Let the Engine Release soak in for a week.
Cover all the spark plug holes with rags to avoid having Engine Release blown out of the holes when you crank your Engine. WARNING: Keep your face away from this area when you crank it.
Now free up the gas agriculture engine by using either a
pneumatic or electric impact
wrench with socket on the large crank pulley nut, located on the front
of the engine crank shaft.
Don't have an impact? Rent or
borrow it if you have to; it's the best tool for the job!
Hammer
blows from the impact wrench setup vibrations in the engine that with a
help of Engine Release dislodge oxide crystals from one another freeing
up the engine. Short bursts of the impact 1-2 seconds duration are
all you need.
Photo shows a bar used to work the engine back and forth once it has been loosened up.
You can make yourself some adapters for your impact to engage the harmonic balancer to shake loose your engine.
Now free up the engine by using either a pneumatic or electric impact wrench with socket on the large crank pulley nut, located on the front of the engine crank shaft. Don't have an impact? Rent or borrow it if you have to; it's the best tool for the job!
Once the gas agriculture engine starts to turn STOP! Also if engine refuses to turn STOP! The engine may need more Engine Release and time to free it up.
Once engine breaks free and starts to turn, stop! Add the remainder of your Engine Release to each cylinder and then crank the engine with your impact for an additional 30-60 seconds to flush way any accumulated corrosion.
If the engine doesn't break free on the first try, add one additional ounce of Engine Release to each cylinder, let it soak in for an additional 3-4 days and go through the process with your impact one more time. Don't forget to replace your rags before cranking.
Once your engine is turning freely, replace your spark plugs
and connect your ignition wires and turn on the fuel supply. Make sure
you have enough clean fresh fuel to start and run
your engine for 5-10 minutes.
Start your engine, let it run at a slow
idle for 5-10 minutes then stop it, change your oil and filter.
Now is a good time to give the exterior of your engine a shampoo with warm water and detergent to remove any Engine Release that may have spilled onto your engine or rubber hoses. Engine Release can damage paint finishes and rubber. Now you are good to go.
V-style gas agriculture engines aren't any more of a
challenge than inline
models. The
only
difference is the amount of Engine release required to free them up.
The procedure is the same otherwise.
These photos for demonstration purposes show you a cylinder bore in a V-style engine. Note 4 oz of Engine Release doesn't reach the top of the piston because the cylinder is inclined photo shows the actual level of the Engine Release as when the engine is installed in the vehicle. A full Engine Release kit is required to flood the cylinder and reach the high side of the piston. If the same engine is loose or on a rotating stand blocking or rotating the engine so that one bank of cylinder bores are vertical to the ground allows you to work on them in a position thats allows the Engine Release to flow evenly around the piston crown requiring much less Engine Release to do the Job. There is no high side that stays dry.
One can of Engine Release is required per cylinder as a minimum to reach the top of the piston with enough Engine Release to wet everything required. There is no other option because of the cylinder's angle in the engine block.
Flood each cylinder with Engine Release, let it soak in for a week then go through our step by step instruction until your Engine is freed up.