W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

1978 300 D Cracked head?

The 78 300 D that i rescued from the crusher about 30 thousand miles ago ran hot recently. The driver told me it just steamed up...started knocking and died. (she was not paying attention to gauges).

the water pump had gone south...no water left in system.

installed a new pump. it fires up easily. runs..no bad noises. bo big smoke. no water in oil...But it starts to miss when it heats up and the radiator cap is on. pop the cap and relieve the pressure it smoothes out.

Im thinking it has a cracked head or block and the pressure is forcing steam into a cylinder(s). anyone have any ideas on that. makes sense to me...
but i have never dealt with this type problem before.

anyone ever have any luck with block sealers they sell over the counter.

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1980 300D Ben Alternator Bracket

I bent the forked portion of the atlernator brakcet that the adjustment bolt passes through and was wondering if bending it back into place is an option or if I should just buy another. I don't relish the idea of dropping a hundred plus dollars on a new/used one of these; would like to salvage what I have if it can be done.

Thanks for the help!

Collin

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83 300SD trans slipping/flairing when cold

I replaced the modulator and adjusted the pressure to factory spec about 3 months ago when I first got the car. Also at the same time I replaced most of the vac hoses and connections under the hood. The trans seemed to shift pretty good for its age, with a very small 3-4 flair.

One night after getting off the interstate 3rd gear just didn't engage. After trying to limp home for a couple minutes, I got angry I just gave it gas and all of a sudden it shifted and worked. The next day I changed the trans fluid/filter and added some Lucas. Now first thing in the morning it slips VERY bad going into 3rd and has a VERY noticeable 3-4 flair. If you floor it all gears engage solid, but it seems like it doesn't want to downshift and it seems to be shifting early too.

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1984 300TD crank/no start

I just bought this car. Auto trans. Sat for 6 months. 150k miles. Just replaced battery and fuel filters. I read other posts. Glow plugs read starting from front(#1 10.7v,#2 10.8v, #3 10.9v, #410.9v, #5 11v). Loosened one injector line and fuel was coming from it.

Seems that I have fuel and power to glow plugs. Its 70 degrees out.

What is next? Comrpression test? Should I buy Physical Exam kit and then adjust valves and do a comrpession test?

Any guesses as to what problem is?

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