Gas Engine Specific Aid

Tired 87 560sl due for engine

A while back I purchased a 560sl to join my mercedes fleet. I thought it was a good deal, but it has white smoke upon start up. I am currently doing the repair/replace analysis I began thinking that while I was at it, it would be nice to get a little more horse power out of it. In researching the internet, I found that the sl 560 was de-tuned for the US market, that the SEL/SEC has more horsepower. Also when investigating, it appears that used sel/sec engines are less expensive than the sl motors.

Chassis Model Number

R107

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1988 190E 2.3 cold idle problems

I bought this car for my daughter with only 83K miles. Compression is good at 165- 170 PSI on all four cylinders (cold). I have tuned it up with new Bosch plugs (non platinum), cap, wires and new injectors. I also replaced the fuel pump, filter and reserve chamber for hot starts (the name escapes me right now). The car runs great but the fuel injection system doesn't kick up the RPM's when cold. I'm assuming its something in the Bosch CIS system, but parts are very dear and I don't want to throw money at a guess. Any suggestions would be appreciated.

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300te 1989

I just bought a 300te 1989 and love it. only problem i've had so far is check engine (changed the o2 sensor and hasn't come back on "fingers crossed" and transmission shifts a bit jerky. sometimes it smooth sometimes it a little harsher. when I'm at freeway speed and floor it and it drops down a gear I really get a good kick. also I've tried putting in neutral going around 50. when I put it back in drive I get a good bump. any ideas out there.

Chassis Model Number

W124

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1977 280e Poor running performance

I have 1977 280e fuel injected gas engine. After many trials I have gotten it to the point that it will start and run...roughly. It back fires through the through the air cleaner when the throttle is stepped on. I have checked and the plug wiring is correct. If you slightly open the choke plate the engine evens out and runs smooth but still backfires when the throttle is cracked. I am thinking a possible vacuum problem exists although the power brakes seem to be great. Any thoughts would be great.

Chassis Model Number

W123

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1987 300e poor (No) acceleration

I got some problems with my 87 300e:
It starts good and has good throttle response in "Park". As soon as you put it in Drive there is no/very slow response and the car just does not accelerate from especially a stop.MAx speed varies from 25 -40 mph., RPM don't go over 2000.
Everyone is telling me that these engines will run 2-300.000 miles, but at this speed it might take me another 25 yrs.to get there....

Chassis Model Number

W124

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87 190E 2.3 Engine 102.985 Replacement pump does not match

I have purchased a replacement water pump and when in the process of installing I noticed the pump has what looks like an extra hose fitting in the 6 oclock position. The hose fitting size I.D. looks to be about 10mm. The original pump does not have this hose fitting.

I reviewed several parts sites concerning this year, model and engine and they all show pictures with this hose fitting in the 6 oclock position. I have pictures to show if necessary.

Do I have the correct water pump?

What is the fitting for?

I thank you in advance for your help.

Bryan

Chassis Model Number

W201

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