Intake Manifold
Below are two photos of the intake manifold and fuel distributor after bolting together - along with notes. Both are from the g wagon.
The sedan donor engine could not hold an idle, the injectors were shot, and the whole system had suffered from sitting for 12 years. But on the G wagon, last year I bit the bullet, replaced everything from the fuel pump to the injectors to cure hard starting when warm, so I completely swapped over the G's fuel system. The workshop put the engine back in yesterday and tried to crank the engine over expecting it not to start, but it fired up immediately, which was a welcome surprise (and noisy as he had not connected the exhaust pipes yet)
Model
I can confirm the stamped engine number matches the plate, it is a 110 984.
JDM or not
The fact the sedan was LHD but has a Japanese plate, suggests it may have been a Japanese gray market import (semi-official). But in trying to determine the timing, I found this
thread which says "
Japanese (...your speedo will be half white, half yellow)" which in fact it is (in km, not miles). This raises the question as for what country Daimler Benz designed the car. It is LHD with pollution controls but is recorded as having been imported from Japan in 2012 with a Japanese ID plate, and it appears to be a one-owner, cherished car in Japan (driven 2,500km/year over 26 years) that was ordered by the importer from the factory - hence the Japanese speedometer.
Timing Reading that same web page, it is very confusing to determine how to set the timing. As a farm truck that gets horrible mileage, I would rather run on regular (in NZ Premium fuel costs US$2/gallon extra), which as you say, will work if I retard the timing. The workshop will do that for me (great arrangement, he allowed me to bring my tools and do all the swap-over work, then he does the heavy lifting and final bits), but has asked what the timing should be set at.
Is it standard European...
- 26° before TDC measured at cylinder 1 at 3500 RPM
Or is it designed with Japanese settings? And with Japanese, there are three settings depending on the model year. The registration says it is a 1982, but you wrote "The 123 source vehicle was produced between 1977 & 1980". The Chassis Number is
123 033 12 064358 - <1981 idle: 800±50 rpm, CO: 0,4 - 2,0%, Timing: TDC at idle
- 1981: idle: 750±50 rpm, CO: 50±10*, Timing: 10° before TDC at idle
- >1981: idle: 750±50 rpm, CO: 50±10*, Timing: 2° after TDC at idle
All very confusing, but I want to give the workshop specs to set it to run on regular, and then will probably adjust by ear after driving up hills. I did that when setting the CO and when I had it tested, the shop said it was right in the middle of the specs.
Question: What numbers should I give the workshop to set the timing?
Transmission
This thread began asking if the sedan transmission would fit in the G wagon (before we pulled the power train, so could not do a visual). The visual has confirmed they are too different for an easy swap. The good news is the guy who bought the donor sedan for $205 on the auction site agreed to pay $800 for the sedan transmission with 64,000 km on it, so the donor motor was free.
