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| 1981 Mercedes 240D |
How do you replace a cylinder head gasket on a 1981 Mercedes 240D? I would love to find a detailed description or a web site with a lot of pictures. My problem is oil is mixing with anti-freeze. I
don’t see anything unusual coming out of the exhaust, so I’m hoping I
don’t have a cracked block or head. Any way to rule out the possibility
of a crack?
Answer: No way to rule out a cracked head unless you remove it.
As a matter a fact,these heads have a tendency to crack around the prechamber that protrudes into the combustion chamber. These heads are very easy to R&R, only two very critical things to to do:
1. Set it up on TDC, top dead center on the crank pulley. The cam marks should also line up.
2. Once the chain and sprocket are removed from the cam shaft. Under no circumstances,allow the injection pump to rotate or it will need to be removed and retimed.
You will need a special tool to remove the timing chain rail pins but if you are creative. You can use a bolt and a spacer to draw them out but the tool certainly will make it easier.
Do not know of any web sites but you can find manuals at any parts store i.e. chiltons or haynes, they can help get the job done.
The worst thing about this job, Mercedes-Benz diesel heads are heavy so watch your back. I popped a disk in my lower back doing this.
As a matter a fact,these heads have a tendency to crack around the prechamber that protrudes into the combustion chamber. These heads are very easy to R&R, only two very critical things to to do:
1. Set it up on TDC, top dead center on the crank pulley. The cam marks should also line up.
2. Once the chain and sprocket are removed from the cam shaft. Under no circumstances,allow the injection pump to rotate or it will need to be removed and retimed.
You will need a special tool to remove the timing chain rail pins but if you are creative. You can use a bolt and a spacer to draw them out but the tool certainly will make it easier.
Do not know of any web sites but you can find manuals at any parts store i.e. chiltons or haynes, they can help get the job done.
The worst thing about this job, Mercedes-Benz diesel heads are heavy so watch your back. I popped a disk in my lower back doing this.
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