Oil leaking from your Exmark Kohler engine can be an immensely frustrating issue. While it may not always be an immediate problem, it is essential to find out why and how your engine is leaking oil, and take appropriate action to address the issue. Below, we’ll cover everything you need to know about diagnosing and fixing an Exmark Kohler engine oil leak.
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Common Causes of Oil Leakage on Exmark Kohler Engines
When diagnosing an oil leak, it’s important to understand what could have caused the problem in the first place. Here are some of the most common causes of engine oil leakage on Exmark Kohler engines:
Poorly Installed Gaskets or Seals
Part of the process of replacing or repairing parts of your engine involves proper installation of gaskets or seals. If these components are not installed correctly, oil may start leaking from the engine.
Accumulated Oil Sludge
When an engine runs, oil collects on its internal components, which can build up over time to an excessive amount. This build-up of sludge can cause blockages in the oil channels, resulting in an oil leak.
Fluctuating Temperature Variations
Temperature fluctuations can cause oil to leak from the engine, especially when it gets too cold. Cold temperatures can cause engine oil to become more viscous, making it more likely to leak through small holes or cracks.
Diagnosing an Exmark Kohler Engine Oil Leak
Now that we’ve covered some of the possible causes of oil leakage, it’s time to move on to diagnosing the problem. The process of diagnosing an oil leak involves several steps:
Physical Inspection
Your first step in diagnosing an Exmark Kohler engine oil leak should be a physical inspection. Carefully inspect the engine for any signs of oil leakage. Look around all components, including the rocker covers, valve covers, air breathers, and the oil filter. Take note of any damage or visible signs of oil leakage.
Clean and Replace Parts
Once you’ve inspected the engine and identified the source of the leak, it’s time to start cleaning and replacing any damaged parts. Use mineral spirits and a soft cloth to remove any grime or residue. If any parts are damaged beyond repair, replace them with new parts.
Verify That Gaskets and Seals Are Seated Correctly
If any gaskets or seals were replaced during the inspection of the engine, you’ll need to make sure that they are seated correctly. To do this, consult your Exmark Kohler engine’s owner’s manual or have a qualified mechanic verify that they are properly seated.
Test the Oil Pressure
Your Exmark Kohler engine relies on having a certain amount of oil pressure to prevent oil leakage. To make sure that the oil pressure is within normal limits, you’ll need to use a pressure tester to test your engine’s oil pressure.
Check for Blockages or Obstructions
Sometimes, oil can leak due to blockages in the oil channels. To rule out this possibility, remove the oil filter, oil drain plug, and filler cap and check for signs of blockages. If you spot any obstructions, use a pipe cleaner to remove them.
Fixing an Exmark Kohler Engine Oil Leak
Now that you’ve diagnosed the issue, it’s time to move on to fixing the oil leak. Depending on the cause of the leak, the steps you’ll need to take to repair it may vary, but here are some general tips for fixing an oil leak on an Exmark Kohler engine:
Make Sure the Oil Pump Is Working Properly
One of the most common causes of oil leakage on Exmark Kohler engines is a malfunctioning oil pump. Make sure that the oil pump is in the correct position, with all three valves properly adjusted.
Check and Replace the Oil Pan Gasket
If the oil pan gasket on your engine is damaged, it can cause a leak. Replace the gasket and ensure that it is properly sealed and bolted in place.
Tighten the Rocker Arm Nuts
Sometimes, oil leakage can be caused by loose rocker arms on the engine. To ensure that they are secured tightly, use a wrench to tighten the rocker arm nuts.
Clean the Drain Plug
Your Exmark Kohler engine probably has a drain plug installed to help keep the oil from leaking. Make sure that the drain plug is clean and replace it if necessary.
Replace the Oil Filter
The oil filter can become clogged over time, resulting in oil leakage. Replace the oil filter and make sure that it is securely fitted in place.