72 280SEL 4.5 project - Mercedes-Benz Forum

 
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post #1 of 9 (permalink) Old 05-05-2010, 02:58 PM Thread Starter
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72 280SEL 4.5 project

I have been given a new project to deal with for my son. It has been sitting in the weeds for 5 years. It belongs to my in-laws and the fuel pump went out so he parked it since he had other vehicles to drive and it has been there ever since. I plan to pull it out this weekend and see if the pump is actually bad or if it is something else. I am a decent mechanic on domestic vehicles but not sure about this car. I am surprised to find it in pretty good shape, mostly just dirty from the trees. I might have a few questions in the future. One I have now is which repair manual should I buy? Is the ones from auto zone or oreilly good enough to get started?
Thanks!
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post #2 of 9 (permalink) Old 05-05-2010, 03:42 PM
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Welcome to the board. I have the same car.

I think you'll find this car both very simple with the exception of the fuel injection controls and possibly the vacuum lines. the quality of the build has been very impressive to me since I've started fixing bugs here and there.

I have the Haynes manual (bought it from Ebay) and it was good with the exception that it doesn't have any 4.5 specific info. This forum and 'peach parts' forum are great sources for that though. There's also a few sticky threads with pdf's that are very helpful.

Keep us up to date on the work!

Former MB: "Miss Juliana" - 1972 280SEL 4.5
Current MB: 2013 C250
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post #3 of 9 (permalink) Old 05-05-2010, 06:22 PM
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My first MB was that very car. It was nearly unbreakable. You'll be surprised how well it will clean up and get back on the road.

I suggest you take all the steps you can to not further whatever damage sitting 5 years has already done by trying to start it before you get all the fluids renewed. You sound like you know what you're doing, so you'll get it right.

Welcome to the forum and welcome to MB ownership.

BTW, this must be "let's get a W108 running" week--there are two other posts from folks who are trying to start cars that have been sitting for years. Your car is a W108 chassis; Mercedes refers to all their vehicles by a chassis, and springs the model off that. The W108 came as a 250 280 and 280 4.5 in short and long wheel bases, and in carbureted and fuel injected versions. There may be more variations than that, but those are the ones that come to mind.

Cheers.

"Don't pick a fight with an old man. If he is too old to fight, he'll just kill you."--John Steinbeck

Last edited by DrJfrmLA; 05-05-2010 at 06:29 PM.
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post #4 of 9 (permalink) Old 05-06-2010, 06:50 PM
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I would suggest going to EPC and getting a account (free) so you will have access to parts numbers and parts breakdowns. Also visit the classic center. They have the manuals you need for a very reasonable price. I would stay away from generic manuals and use the factory manual.
Here is the link to EPC.

EPC-net Online

Here is some good info on the D-jet system. I know it's a 914 site but it's essentially the same system. Scroll down to the D-jet links.

Brad's '70 914 2.0L

Good luck on your project.

Tony
280SE 3.5 Coupe
Stick shift
3.27 Axle
5.6 Iron block build in progress
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post #5 of 9 (permalink) Old 05-06-2010, 10:22 PM
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Tony, that EPC site is GREAT! Thanks. I wish there was a way to download all that.

Former MB: "Miss Juliana" - 1972 280SEL 4.5
Current MB: 2013 C250
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post #6 of 9 (permalink) Old 05-07-2010, 12:18 AM
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Originally Posted by HBguy View Post
Tony, that EPC site is GREAT! Thanks. I wish there was a way to download all that.
One of the great advantages of Web-based information is that you can get up to the minute information, and you aren't responsible for keeping it current. It's a real paradigm shift. When CD's came out, I gathered all sorts of useful stuff and put it on (very expensive at the time) CD-ROM's; but today, why bother?

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post #7 of 9 (permalink) Old 05-07-2010, 03:00 PM
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I purchased the CD manual for my car from MB about 8 years ago and it was about $130. Now they are very inexpensive.

Tony
280SE 3.5 Coupe
Stick shift
3.27 Axle
5.6 Iron block build in progress
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post #8 of 9 (permalink) Old 05-10-2010, 08:49 AM
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A gardening project? Is V8 pumps can be taken apart and cleaned. Make sure you drain the gas tank also.

Good luck.

With best regards

Al

Check out the W114, W115 /8 enthusiast forum http://www.stroke8.org

My 280SL restoration
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post #9 of 9 (permalink) Old 05-14-2010, 08:20 AM
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TSL Man...this is great. Like you and others indicate you have the wrench hands but now you are dealing with German technology.....not a problem when it comes to the basics on getting her going. I suggest a refresh of all fluids, a pump-out of the gas tank, then I would pull all the plgs and spray in a good dose of WD40 and some marvel and let it sit for a few days.....then try to turn over the engine without plugs.....5 years isn't terribly long for rings to stick but it can't hurt to "nurse" it gently first. After that its new plugs, check for spark and gas feed and give her a whirl. Keep us informed as these are great stories on saving good ole iron!
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