Well, today was the day.
I picked up Pepe an his son early in the morning and came home.
The target for today was to start the engine.
Once in the shed, we started filling the tank and priming the fuel system. Then the fuel filters started to leak. We tightened the screws but they are still leaking. I will try to solve that for good tomorrow. Once we checked that the fuel had arrived to the pump, we connected the battery to the starter and the engine began to turn. But it did not start. Nothing.
Then we checked the timing, but it was ok. Just to be sure, we disconnected the fuel line to the first injector. Nothing came out of it. Knowing that fuel was arriving to the pump, that meant that the pump was not working. I had checked it months ago and seemed to be in order...! You know, I hate when these sort of things happen.
After some heavy cursing, we decided to take out the pump. That meant to take out the air filter. Away it went.
Once the pump was on the workshop table, we opened it. Three injectors and the control rack were stuck... I picked the penetrating oil spray and half an hour later everything was working properly. The pump was installed again and this time everything seemed to be in working order. We connected the starter and... Nothing.
There was some smoke coming out from the exhaust (and from the exhaust seal. I have to fix that), there was oil flowing properly in the camshaft chamber, so we decided to insist. We turned the engine with the starter until we depleted the battery. Not a single bang, but the noise of the engine was more promising. So we connected the battery to the charger and went to give good account of a bottle of excellent wine, some cheese and cured sirloin.
When we ran out of wine and felt quite more optimistic, we decided to give it a new try.
This time Pepe decided to apply an old trick. As the air admission was open without the filter, he soaked a rag with gas, lit it and put it close to the air inlet, so the air the admission aspired was hot. And then, after maybe 40 years, with a powerful roar and lots of smoke, the engine started. The run was stable, but we let it stop because the cooling pump is still on the table. We let it cool down and we connected the starter once again. This time the engine started immediately and without help.
The shed was totally full of smoke, the wooden frame of the roof was blackened by soot, we were poisoned by the fumes and the paint job of the tractor was marred by fuel, soot and oil. But it was a great day.
Lots of work lay ahead, but the day the engine of a restored tractor starts is always a turning point.