What kind of timing chain does a Mercedes 300D have?
The 300 designation indicates the car has a 3.0-liter engine, and the D designation means the engine uses diesel fuel. The timing chain in the Mercedes Benz 300D is an endless timing chain that contains a single master link, or connecting link. You must use a chain-breaker to separate the master link and remove the timing chain.
How do you change the timing chain on a camshaft?
Plug the opening in the cover for the timing chain with shop rags. Attach a chain-breaker to the master link on the timing chain. Separate the master link by using the chain-breaker. Release the clamp from the camshaft gear, and remove the shop rags from the hole in the timing chain cover.
What’s the correct timing for the diesel pump?
This feature is not available right now. Please try again later. The injection timing stood on 27 degrees before TDC, it should be 24 degrees. Turned out that two of the three bolts of the pump were loose. One drop every second indicates that the pump is timed correctly. Loading…
What should the injection timing be before TDC?
The injection timing stood on 27 degrees before TDC, it should be 24 degrees. Turned out that two of the three bolts of the pump were loose. One drop every second indicates that the pump is timed correctly. Loading…
The 300 designation indicates the car has a 3.0-liter engine, and the D designation means the engine uses diesel fuel. The timing chain in the Mercedes Benz 300D is an endless timing chain that contains a single master link, or connecting link. You must use a chain-breaker to separate the master link and remove the timing chain.
When do you know to change the timing chain?
A timing chain runs inside the engine, as it needs to be lubricated by the engine oil. A timing belt typically needs to be replaced between 40,000 and 100,000 miles depending on the vehicle and it’s a few hundred dollar repair. A timing chain doesn’t need to be replaced unless there is a problem with it.
What can I do to avoid timing chain problems?
To avoid timing chain problems you should maintain your engine properly and have the engine oil changed at recommended intervals. Using premium quality engine oils and oil filters will also help. Keeping the proper oil level will ensure that the timing chain is always lubricated.
What kind of chain is a timing chain made of?
A timing chain is made of metal, similar to a bicycle chain. A timing chain runs inside the engine, as it needs to be lubricated by the engine oil.
What do you do when your timing chain rattles?
Don an automotive stethoscope and place the probe on the top or side of the timing chain cover. If you hear a rattle, metal to metal slapping or scraping coming from inside the cover, it indicates a timing chain noise.
What kind of noise does a timing chain make?
Listen for a metallic sound that resembles a rattling or scrapping noise. The sound can be intermittent or constant, but it will be a metal to metal contact. Such a noise will reveal a loose timing chain hitting the inside of the timing chain cover every time it rotates. You might also hear a metallic slapping noise.
Where is the timing chain tensioner located on a Mercedes?
If the balancer is at Zero, and the distributor points to #1 then both left and right camshaft marks should align as shown in the photos above. If this is the case you are now at TDC. Remove the timing chain tensioner located on the right passengers side head held on by 13mm bolts.
How do you remove a Mercedes timing guide?
Above you can see the old tensioner guide. You remove it by taking out the 5mm plug on the timing cover and using a magnet to pull the pin while holding on to the guide. Sometimes the pin requires the use of an easy out to remove. Careful there is a washer on that plug you dont want to lose.
If the balancer is at Zero, and the distributor points to #1 then both left and right camshaft marks should align as shown in the photos above. If this is the case you are now at TDC. Remove the timing chain tensioner located on the right passengers side head held on by 13mm bolts.
Plug the opening in the cover for the timing chain with shop rags. Attach a chain-breaker to the master link on the timing chain. Separate the master link by using the chain-breaker. Release the clamp from the camshaft gear, and remove the shop rags from the hole in the timing chain cover.
Above you can see the old tensioner guide. You remove it by taking out the 5mm plug on the timing cover and using a magnet to pull the pin while holding on to the guide. Sometimes the pin requires the use of an easy out to remove. Careful there is a washer on that plug you dont want to lose.
When to replace timing chain on Mercedes B class?
Always when you replace the timing chain Buy the OEM raplacment set. ( Mercedes parts) It usually lasts 300-400k km on a B class. / (Diesel) Yeah it’s not like in old mercedes cars where it lasts for at least 800k km. Alo i think a good practice when doing the chain job to change the water pump, thermostat and a clutch job. ( cause engine is out)
How does the timing chain tensioner work on a Mercedes?
Apparently the timing chain tensioner is hydraulically operated off engine oil pressure. In “the good old days” they used to fit a check valve in the oil feed to the tensioner so that it didn’t back off when the engine stopped. Some accountant type decided that was too expensive and it got deleted.
When to change the timing chain on your car?
Wait until ~ 400,000 kms to think about that timing chain work.. Yeah, timing chain doesn’t have a change interval. It’s a car life time item ( aka warranty period). You change the timing chain when it’s starts rattling. You can notice this noise on cold starts.
Is the timing chain on an engine made of metal?
In order for your engine to fire, the timing chain must smoothly rotate around the gears without hesitation. Although the timing chain is made out of metal, it is subject to wear and tear and may break if not replaced as recommended by the manufacturer.
What can cause a timing chain to fail?
A timing chain can also fail due to a lack of tension. You see, a collection of tensioners and guides hold the chain snuggly in place. Should any of these components break, the chain will be free to slap around against other components, such as the timing cover. Obviously, that can cause severe damage to the chain.
How much does it cost to replace a timing chain?
Prepare to have a repair budget of around $1,000 to $2,500 for both the parts cost and labor if you’re expecting a timing chain replacement. If, however, you are the DIY type, you may purchase a timing chain or belt and install it yourself at a price of around $80 to $250.