Poster boy

July 14, 2007

What working on 40 year old drum brakes results in.
Print out, frame in. Hang on wall.

What’s cooking? Oil of course!

February 20, 2007

Lack of updates for more than a month, is this project mothballed? No!

Work has been going on although at a slower pace than before.
Temperatures here in Sweden has been below 0oC and the shop had no heating what so ever so temperatures there were also .. sub-zero.
Last week I managed to get my hands on a diesel fueled heater so now we’re able to maintain about 15oC and that’s quite ok.

Enough rambling, what’s cooking?

First I did some shortering of the cardan shaft to accomodate the longer 722-transmission (the original transmission is so laughable small it could be from a small motorcycle..). Here’s a picture of the very scientifically exact method (this is a “not joke”..) used in joining two parts of cut-up cardan shaft.

Cardan shaft cutup
The leftmost part is what I cut from the W123’s cardan, and the rightmost part is what I took from Franzes original parts. Another picture showing length comparison of the part that I removed from the W111’s cardan, compared to the finished result.

Cardan shaft cutup
All in all I think this new combo is about 12-13cm shorter than it was before. It’s only temporarily welded together as you can see, I’m not going to weld this together myself since the end result propably would vibrate my car to pieces.

Finally a picture of the entire drivetrain assembly.. or not. Quite impossible to take such a picture so this is for your pure Benzophile enjoyment. I promise though, the cardan assembly is all there! Really. Even test fitted the engine again and it all fits perfectly.
Drivetrain all there

Use the grease, Luke… I’ve managed to negotiate a deal with a local falafel restaurant, they’re giving me about 20 liters (5 gallons) used cooking oil a week. Nice deal so far since I even haven’t got the car put together.. Oil seems to be of a good quality, did the frying pan test and it shows no water what so ever. Cool! So time to start filtering, bought some nice oil drums to make a filtering assembly of, it’s going to be very similar to this. Here’s a WVO porn picture of the to-be-refinery-drums.


Poured over the oil I’ve got so far (2 20 liter buckets) in one of the drums. Man this sh-t stinks horribly! And the stuff I found at bottom of the buckets.. almost threw up on looking at it. The good part is of course that the oil had settled fairly well and left some 2 liters per bucket of this yellowish sludge that I definitively not need in my engine.

Did some shopping too.

Found a nice set of injection line heaters on eBay, here’s a pic (fresh outta box). Seller says it will heat up the lines to about 90oC and I have yet to test this but have so far no doubts about it.

Line heaters

And finally a real cool deal, got this from UtahBiodiesel Supply. No greaser is complete without one! Matches nicely the original 230S-badge even though it’s made to imitate the W123’s lettering style.

Biodiesel badge

That’s about all for now.

Cleaning part 2

December 29, 2006

Got the engine cleaned yesterday. Had to succumb to using a power cleaner, so ashamed now that I didn’t even take any pictures.

Cleaning part 1

December 21, 2006

Got the tranny de-greased and -gunked today.

Here’s what I had to begin with
Tranny before
Pretty awful, huh?

After two hours washing it over and over again..
Tranny after begun to look real nice! Not resembling a piece of Chinese coal anymore.

The unfilthing of the tranny did reveal some numbers too
Tranny numbers

Some readers may wonder why it took so long time, short answer is that I didn’t have a pressure washer and did the cleaning mostly manually.. Hey, I’m on a budget here, can’t just buy a pressure washer for $200, now can I?

The crown jewel

December 18, 2006

So what might this be?
Ugly piece of scrap

Experienced Mercedes Benz mechanics immediately recognizes this as a OM617.912-engine, and what a fine piece of machinery it is! After a lot of research on the internet I have come to conclusion that this is the single most durable and well-built diesel engine in the history of mankind! And everything you read on the internet is true, right? Right.

Bought this one for $500 from a farmer, guy said it was running last time he had it in a car (it previously sat in a 1970’s Ford pickup, what a sight that rustbucket was).

Attached to this greasy lump of metal is a yet to be identified Mercedes Benz tranny, seller said it is an automatic transmission. I suspect some kind of 722-variety. More on that later.

Engine separated from transmission and mounted on engine stand
More grease

As you can see, some of the vacuum hoses has just been cut off, the engine is covered with filth of all kinds but it appears, for my untrained eye, to be complete!

Let the party begin..