300SE need to move no air - Page 2 - Mercedes-Benz Forum

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post #11 of 12 (permalink) Old 10-12-2007, 12:28 PM Thread Starter
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thanks for the links I keep forgetting to get over those sites and read/study more. Does anybody have an idea how many 300SE are still on the road?
jim dorociak is offline  
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post #12 of 12 (permalink) Old 10-12-2007, 04:12 PM
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There must be major leak if your shop air cannot pump up the car.It only takes around 100 PSI to fill the bags .I have one here at moment which has a badly leaking main valve ( the control valve up by the engine) which I just left on the air full time so it could be pushed around ,the shop compressor is only 13CFM but it hardly needed to cut in to keep the pressure up.. Be aware also ,that the volume required is very large so it can take up to 10 minutes to fill a dead empty system with a smaller volume compressor.
Besides carefully listening for a leak,get squirt bottle with soapy detergent and spray it all over ALL the air system and you will find any leak.
I would say that the axle valves are leaking. because they now very obsolete ,They cannot be repaired by normal methods.the interior parts are repairable,but the outer seal is usually fixed by filling with Black "sikaflex". The other alternative is to fit rebuilt W109 valves.

Don't bother trying to get around this,rebuild your compressor,replace the valves,the three hoses from the body to the front axle,and any bags which a worn look and the suspension is good for another 40 years.
As for numbers of W112's still on the road,Chris has most of them in the USA i think :-)) but I would be guessing and say that a lot of the have survived but are just not being used.
Once you have yours on the road you will wonder just how far cars have really progressed in 40 years!
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