W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

86 300SDL Optima battery install fried something

I was taking care of a few things before my monarch nozzels, balancer, and trans cooler lines come. Here is what I did I bought a yellow top optima put it in heard pop okay? tried to start it no glow light no antenna. Smoke from the alternator (it's okay to laugh now more laughs later too!) the voltage reg. was hot and stayed hot so fried right? Pulled it out it was going to go anyway carbon stacks real low. the only thing down where the smoke was is the alt. Here is what happened if you look at the front of an optima the positive is on left neg.

Chassis Model Number

W126

Forums

Diesel Engine Specific Aid

1982 300 td Radiator Neck Failure

Well sure enough, my very clean and tight TD's radiator neck failed while driving and I am glad I am an assiduous gauge checker. When the temp started heading up above 100 I pulled off the road and found the hose off and quite a mess. There was enough of the neck remaining for me to reattach the hose and make my way home.

I am wondering if I can use the reinforcement kit and a piece of ABS or some such to fashion a new radiator neck instead of buying a new radiator. I'd much rather spend that money on replacing the rear window gasket of the CD.

Thanks for your help.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

Tips on installing (and removing) 126 chassis front end lower control arm bushings

So, I learned the hard way how not to do things today but then figured out an easy way to do it (isn't that always the case). I ordered the front end rebuild kit (well worth it, the parts are great) and took everything apart, pressed the bushings out and was ready to reinstall. I had a mercedes mechanic help with the ball joint pressing, get a jig or find someone with one. It's a pain in the butt. The first time I installed the bushing I used a press with a slightly cockeyed die on it and messed the whole thing up. The bolt wouldn't even go through! Luckily these kits come with two and since this one didn't even look that bad I'm going to just leave the other side alone. There are two methods to getting these things off

Chassis Model Number

W126

Forums

Transmission / Suspension Specific Aid

electric fuel pump added to my 1984 300 CD

1984 300 CD
I added a Mercedes Source electric fuel pump, no other fuel system mods. After inital installation the pump would audibly cycle slowly at idle, and pump speed would aduibly increase with engine speed.

suddenly, the pump now runs at high speed constantly, idle or at highway cruise, no detectable difference. Is this a problem or normal?

Also, any ideas of a material to use to isolate the pump from the chassis to lower the audible pumping sounds?

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1985 300TD Turbodiesel - Boost Intercooler - Any Experience?

My 1985 300TD Turbodiesel runs on SVO. The car has good compression and runs great. The car gets to 60mph in about 13s which I believe is to be what's expected from a well tuned specimen. My aim now is to improve the performance beyond that. I have installed some of the performance-enhancing modifications recommended on this web site, including Monark injectors and a fuel boost pump. (Of course I also have Kent's performance tuning manual which has been very useful;-)

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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