Happy New Year

Åhus old "city hall" 31th of December

Swedish Bosch K-Jet system dokumentation for download

This is a swedish document describing the Bosch K-Jet system on the models below...

Ladda ned PDF med beskrivning av Bosch K-Jet för Mercedes 107

Lämna gärna en kommentar nedan så jag vet på ett ungefär hur många som laddat ned filen...

New MegaSquirted m110 in a 280 SE

I while ago I was contacted by a person who had read this blog. He had a 280 SE -82  (w126) with the same m110 engine as in my car and asked me if I could help him to replace the engines fuel and ignition system exactly as I have done.
I invited him and last week he drove about 400 km to get some help from me to do the same. Before he visited me I asked him to do all the manufacturing and also mount the oxygen-sensor which shows the exact Air/Fuel ratio (AFR) while engine is running.

I only had my own engines AFR values from before I changed fuel system, so I was very curious how rich or lean his engine were running...
He filled up his gas tank before he drove to me and filled it up again when he came here.

1.22 liter/10km which is more than OK but he told me that he had been ”Eco-driving” the whole way and never had a measured a better fuel economy.

His AFR value while cruising the highway was as lean as 16.3 which surprised me because I've mapped my mixture to stay between 15 -15.5 when cruising. At Wide Open Throttle (WOT) he never got under 13 which in my opinion is way to lean. I have as rich mixture as 12.5 at WOT. I could notice that my car have much better acceleration than his car but with so lean mixture it was expected.

Unfortunately he didn't get his fuel rail in time so we only replaced the ignition in this first step but prepared everything for the fuel system swap. As soon as he was home again he called me and told me that his fuel consumption was 10% lower and this time he had really driven the car with high speeds and lots of kick downs.  He said that it was a totally new growl from the engine, much more responsive than before. This is exactly the same result I've got when I replaced my ignition system and at least 10% lower fuel consumption.

So now he waits for the fuel rail to be manufactured so that he can complete the rebuild.

I thought it could be interesting to know that it is possible to get a higher mileage and it wasn't only my engine that got good results from the swap...

Distributor disabled

New six coil

280 SE

Adapter for trigger wheel

Trigger sensor

Tuning...

Had to replace some damaged parts

Noticed that the car didn't respond on the throttle as it used to, found out that a bushing (called shackle by MB) was totally worn out which caused a gap before the linkage responded to a change when hitting the pedal.  Replaced the "shackle" and readjusted the throttle linkage.

Part number is visible on the plastic bags.

Part numbers

Upper part of the shackle is totally gone which caused a gap in the throttle linkage

New part in place, put it in boiled water for easy assambling

Shackle in place

Got some questions about the correct tire pressure, so this is what the sticker says on my car...

After this very long and cold winter it finally starts to feel like spring. I took her for a ride for the first time this year and she purred like a kitty.

Still, it's a little to cold for removing the hardtop but soon...

I want to wish you all a very Merry Christmas and thank you for visiting my blog here...

I haven't been so active this year since I had to spend more time with my family and other unexpected things in my life, but next year will be different and I have some plans for my car.

Hope that you continue to visit me ans see you all next year...