Have got much done on the VAG 1,9 AEF diesel engine the last days. Dieselpump cleaned up and wiring is fixed. Only 3 sensors are used now. There is alot of wiring and electric sensors that is not needed in a van. (removing immobilizer for example). I moved the dipstick hole to the other side of engine, as it is tilted 45degrees in the bus also are on the wrong side. So drilling a new hole in the engine block was needed. And the old was tapped and sealed up with a 12mm bolt. The tube from the AEF was used and modified/bracket.
The intake manifold don’t fit in the tight bus engine compartment so the old one from the 1,6 CS are going to be used, it has a better angel/shape that fits inside the bus compartment. But it’s a little smaller in diam so I made a port matching (as close as possible) for better flow. The exhaust manifold, I probably going to use the AEF, its bigger in diam than 1,6 so will improve the performance. The downside is I must make a custom exhaust and blank off the EGR valve. Hopefully worth it in the end!
New water pump and thermostat is installed. New timing belt and tensioner etc. Changed flywheel to the 1,6 CS, new needlebearing (don’t forget!) new throw out bearing, new clutch kit. I used new bolts from FEBI to the flywheel, standard size. I took the backing plate from the 1,6 as it will fit the bus transmission better. Also needed to remove two upper studs from engine bolt holes, bolts straight thru will be used instead.
All sensor need to be taken from the old engine (good since I bought all these new awhile ago) like oil pressure, water temp, glow plug sensor etc. Waterflange in alu with sensor was taken from the 1,6 also. All waterlines and hoses to oil cooler etc was removed. Next up is changing oilpan to bus cast alu 1,6 CS. The oilfiller tube has to be removed and plugged, the servopump will be in the way. Will use the cap in the camcover instead. New alternator and servopump, waterpump pulley, idlerwheel and new fan belt is going to be installed next time. Also some new resistors and relays need to be added to the glow plug sensor and relay for coldstart etc.
Transmission have also been removed from the bus now, getting it ready for overhaul and difflock, new seals and shifter bushings. More about that soon…
Another really good page for AEF conversion is Colins write-up on Brick-Yard forum, here is the link: http://www.brick-yard.co.uk/forum/1-6cs-to-aef-engine-swap_topic52595.html