Tillie Doyle
Replacing the oil pan gasket on a Mitsubishi Triton is a straightforward process, but it can be messy and may require some additional parts to be removed for better access. The oil pan gasket plays an important role in keeping the engine oil inside the engine, ensuring good lubrication, maintaining engine temperature, and preventing corrosion. If the gasket fails, the engine will eventually be starved of lubrication, leading to potential running problems. The replacement cost for this issue is typically between $100 and $400, but unusual configurations can increase this price.
| Characteristics | Values |
|---|---|
| Step 1 | Obtain the appropriate oil pan gasket replacement. Gasket materials vary depending on the type of metal they’re intended to seal. |
| Step 2 | While the oil is draining, remove the splash shield and bellhousing cover. |
| Step 3 | In front-wheel-drive vehicles, the oil pan is often mated to the transaxle. Other accessories such as the exhaust-manifold support and air-conditioning bracketry might need to be detached. |
| Step 4 | A service manual helps identify all oil-pan bolt locations. Some might be obscured behind other parts. |
| Step 5 | Removing the wheel-well-liner pieces can ease access to the outboard passenger's-side bolts. |
| Step 6 | Once all bolts are removed, the pan can be dropped. If necessary, tap it lightly with a mallet to break the seal. |
| Step 7 | Scrape off any gasket residue and clean all sealing surfaces thoroughly with a solvent. |
| Step 8 | Clean the inside of the oil pan and inspect it for cracks. |
| Step 9 | Install the new gasket per its instructions. |
| Step 10 | Use thread sealer, if specified, then torque the oil pan bolts to spec in a spiral pattern, beginning in the center. |
| Cost | $100-$400 |
| Additional work | Check the looseness of the timing chain and change it if necessary. |
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What You'll Learn
Detect oil leaks
To detect oil leaks from an oil pan, start by cleaning the engine with a degreaser. When the oil reappears, follow the trail to its highest point. If the evidence leads to the top of the oil pan, the solution will be more labor-intensive.
- Puddles or drip marks under your vehicle are an obvious indicator of a fluid leak. To confirm that the leaking fluid is oil, note that oil is typically yellow-brown or brown-black in colour, depending on how old it is, and has a bitter smell.
- If oil escapes oil lines in your vehicle, it will drip onto the exhaust system and produce dark smoke. Over time, this can cause engine sensor damage or deteriorate gaskets.
- Oil can also escape from lines and drip into your combustion chamber. The chamber burns the oil, and your exhaust will emit a thick, blue-tinted smoke.
- If your warning light turns on or your engine is overheating, you may have low oil, which can indicate an oil leak.
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Clean the engine
To replace the oil pan gasket on a Triton, you will need to clean the engine. Here is a step-by-step guide on how to do this:
Firstly, ensure the engine is cold before you begin cleaning. This is important for safety reasons, as you do not want to risk burning yourself. Start by removing any loose debris with an air compressor or a vacuum cleaner. This will help to stop the dirt from spreading and reduce the amount of grime that will need to be removed by hand.
Next, use a soft-bristled brush, such as a toothbrush or paintbrush, to agitate the surface and remove any remaining dirt and grime. Be sure to wear rubber gloves to protect your hands from sharp components. Once you are satisfied, move on to cleaning the surface by hand.
Create a mixture of hot water and dish soap in a bucket. Using a soft cloth, wipe down the engine surface, rinsing the cloth as needed. You may need to change the water in the bucket multiple times. For particularly greasy areas, use a product like Spray Nine, which can easily cut through grease. Engine covers can be removed and cleaned with a hose if desired, although this is not necessary.
Finally, dry the engine by allowing the water to evaporate, and then wipe away any remaining water with a soft cloth. You can use an air compressor to blast water out of hard-to-reach areas. Once the engine is completely dry, you can apply an engine protectant to add a protective layer and make future cleaning easier.
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Remove parts for access
To replace a Triton pan gasket, you will first need to remove parts to access the oil pan and its bolts. This may include removing the splash shield, bellhousing cover, exhaust manifold support, and air-conditioning bracketry. The wheel-well-liner pieces may also need to be removed for easier access to the bolts.
A service manual will help you identify all the oil-pan bolt locations, as some may be obscured behind other parts. You can also refer to the instructions that come with the oil pan gasket replacement to see what, if any, sealers and chemicals are required.
Once you have identified all the bolts, remove them, and then you can drop the pan. If necessary, tap it lightly with a mallet to break the seal. Be careful not to bend the oil pan when removing it. Do not attempt to pry the pan loose with a screwdriver, as this can bend the mounting surface. Double-check that all bolts are removed before tapping the pan with a mallet, as this can crack the pan if all bolts are not removed.
After removing the pan, scrape off any gasket residue and clean all sealing surfaces thoroughly with a solvent. Also, clean the inside of the oil pan and inspect it for cracks.
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Remove the oil pan
Removing the oil pan can be a straightforward task, but it is important to take your time and be careful not to bend or crack the pan. First, make sure that you have obtained the appropriate oil pan gasket replacement. Gasket materials vary depending on the type of metal they are intended to seal. Name-brand gaskets typically come with any necessary sealants. Before removing the oil pan, you should consult the service manual for your vehicle, which will help you identify all the oil-pan bolt locations. Some bolts may be obscured behind other parts and accessories, which may need to be removed first. These could include the splash shield, bellhousing cover, exhaust-manifold support, and air-conditioning bracketry.
Once you have located all the bolts, you can begin to remove them. If the pan does not release easily, double-check the bolt count and locations in the manual. After all the bolts have been removed, the pan can be dropped. You may need to tap it lightly with a mallet to break the seal, but be careful not to use too much force, as this can damage the pan. Next, scrape off any gasket residue and clean all sealing surfaces thoroughly with a solvent. Make sure none of the old gasket is left behind on the pan, as this can affect the seal. You may need to use a razor blade to get rid of any remaining residue.
Additionally, while the pan is off, you may want to inspect other components for any issues. For example, you can check the looseness of the timing chain and replace it if necessary. You should also inspect the inside of the oil pan for any cracks before installing the new gasket.
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Install the new gasket
To install the new gasket, first clean the inside of the oil pan and inspect it for cracks. Then, install the new gasket per its instructions. Some gaskets use regular grease to hold them in position. For example, the Felpro cork gaskets use a light coat of ultra black RTV on the surface of the engine.
Glue down the long side gaskets to the block's pan rails. You can then use your pan bolts to hold the gasket in position until it is set up. You can also install the front and rear rubber end seals to help hold the pan rail gaskets.
Use thread sealer, if specified, then torque the oil pan bolts to spec in a spiral pattern, beginning in the centre. Finger-tighten the bolts and use a ratchet to finish the job. Tighten them down in a star pattern: left side, then right, then front, then back, and repeat. Do not overtighten the bolts.
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Frequently asked questions
The oil pan gasket on your Triton keeps the oil on the inside of your engine, maintaining good internal lubrication, keeping the engine temperature in check, and preventing corrosion on internal engine components. If your engine’s oil pan gasket develops a leak, your engine will eventually be starved of lubrication and can develop running problems.
To detect a leak, begin by cleaning the engine with a degreaser. When external oil reappears, follow the trail to its highest point. If the evidence leads to the top of the oil pan, the solution will be more labor-intensive.
First, obtain the appropriate oil pan gasket replacement. While the oil is draining, remove the splash shield and bellhousing cover. Then, follow the vehicle-specific procedures outlined in the service manual to identify and remove all oil-pan bolt locations. Once all bolts are removed, drop the pan and clean all sealing surfaces thoroughly with a solvent. Finally, install the new gasket per its instructions, using thread sealer if specified, then torque the oil pan bolts to spec in a spiral pattern.
A Triton oil pan gasket replacement typically costs between $100 and $400, although unusual configurations can drive that price up.
