Any tips/tutorials for 240D head gasket replacement?
Hi, All-
About 6 months ago my 240D started to make a horrible "chuffing" sound while I was driving it. I thought it must be a broken glow plug or something, but I found that the gas was escaping between the head and block on the number 3 cylinder. At night, you can see a small flame there. I parked the car, and have finally got ready to try and fix it. I can't see anything it could be besides the head gasket, but it is a strange failure mode I haven't heard of before. In any case, I got the head gasket kit, and am about to pull the head and see if that is what is going on. Does anyone have any tips about doing this? Photos or a tutorial would be great. I have the factory service manual (on CD, ugh). Thanks, Max Behensky |
Here's the thread with pics of my 300TD. One extra cylinder, but a similar job. :)
http://www.peachparts.com/shopforum/diesel-discussion/325433-1985-300td-head-gasket-repair.html |
Thanks for the pointer to your thread
That info is awesome. Thanks so much.
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This thread also has some very good info.
OM616 Overhaul - Benzworld.org - Mercedes-Benz Discussion Forum |
Chads thread is excellent.
Just a week or so ago I replaced the cylinder head on a very overheated 78' non turbo I got my hands on for cheap. The head was cracked around almost every valve, it was nuts. PO was... dumb lol. My best advice is to get a system of meticulous organization. Box, bag and label everything. I know that is obvious but it's my best advice. Pulling the little bearing out of the head for the slide rail out was honestly one of the hardest parts. Even with a massive impact it took a lot of PB and repeating. I was starting to think it wasn't going to move. The job is much easier with an engine hoist and leveler to do the lifting for you, if you have a buddy it's very possible to do it by hand. Oh and keep tension on the chain at all times, I used a short bungee cord. Can't hurt stuffing a shop towel into the chain valley to prevent sockets from finding their way in there. http://imgur.com/a/nQ5Mq |
Hi again, all-
In the factory service manual it has you measure the head bolts to see if they need to be replaced. Some other references I have found suggest that you replace them all, no matter what. I was wondering what you folks thought, since 18 bolts @$6 adds up to around a hundred bucks.. Thanks, Max |
For just a head gasket replace I would measure them and if in spec use them. For a total overhaul get new ones
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