1975 450 sl been sitting 2 yrs

[Minddoctor]

Hello, will be getting a 75 450 conv with hardtop. What should I do to get it ready after sitting for 1 to 2 yes. They replaced the main fuel line, started it and drove it 1000 feet. It ran strong he said, steering good, brakes strong etc. I will have it towed to my place so I do not suck any nasty stuff into the engine while trying to drive it. It has 108 k miles and is very clean.with spending a lot of money what should I do when I get it tomorrow to get it road worthy ? Thanks. Can email me at Minddoctor@Windstream.net. Thanks a lot. Will pay 5000.00 for it.

[RadioTek]

It would be best for you to drain the fuel tank of any old varnished gas and have it flushed to clean out any accumulated gunk. There is a sediment screen that should be replaced during the job, if you want to eliminate all possibilities, but it's sort of an involved job if you're not familiar with where you're going. There are also a couple of fuel lines going to the fule pump that should be replaced while you're inn there. It should go without saying that the least you need to do is replace the fuel filter and run some Seafoam through the system with a tank of fresh gas or two.

Have the brake fluid changed and the system bled. This is not a bad DIY job, if you have access to a pressure bleeder, or some experience on other vehicles.

You will probably need to go through the engine vacuum system and replace as many hoses and fittings as you can get your hands on. Not an expensive job if you do it yourself, just takes a lot of time and patience with a vacuum diagram. It will be time well spent, as these things are finicky when it comes to vacuum leaks.

You have the Bosch D-Jet fuel injection system, the last year it was in use on these cars. It still has breaker points, again, the last year for them. You will need a dwell meter to keep them correctly adjusted.

There is a service manual available online here: http://www.startekinfo.com/StarTek/outside/11883/?requestedDocId=11883

Very helpful.

You might want to have a dealership check to see if the subframe recall has been tended to for your car. http://www.benzworld.org/forums/r-c107-sl-slc-class/1450267-sub-frame-recall-information.html. Another 107 forum that is very active.

Check the condition of the frame rubber components. Subframe mounts, motor mounts, control arm bushings, and steering coupler.

Make sure the fuel lines from the distribution rail to each injector are good, and all the little fuel lines between various components are good. If you want to go through and replace any of the fuel lines, make sure to get the tubing rated for fuel injection systems. It is designed to handle the higher pressures involved.

Check over the cooling system thoroughly, hoses, belts and pump seals can go from sitting that long/

Just a few ideas off the top of my head, from my journey to date with my '75.
Scott

[cth350]

really want to spend 5k on a non-running benz that has all sorts of potential gremlins?

While a great daily driver might cost a bit closer to 10k?

There is nothing more expensive than a cheap benz (not that 5k is cheap), but there are plenty of W107 SLs going around.

-CTH

[cth350]

Oh, and before paying a dime, put the car up on a lift and check the underside for rust. Just because the car is pretty, doesn't mean it's not full of holes. ANY underside rust will be a nightmare on this car that won't be worth fixing.

While on the lift review the front suspension subframe. Make sure there is no evidence of it being welded back together and that all the bits and pieces seem tight and intact (nothing wobbles).

HTH -CTH