Hello and thanks for a great forum.
First of all, I am newbie and my be my post is on wrong place. I am from Norway, and pardon my English.
I have a Swedish Iller TDI small groomer with a vw r5 tdi engine. The groomer is prodused in 2001, but I think it is the same engine back in production start in 1997. The only I id I could find is AHY but I cant find any spec on this on internet.
Question one: What kind of engine is it? It looks like it has a vacuum driven EGR valve. Looks really simple, but I se a "brain" clamped to the radiator
Question 2: When is it below zero, it wouldn't start at all, when it is 0-5 degree's Celsius it start after crank a while. When i start troubleshoot, my first focus was glow plugs, they are all new and working. They also glow until they are very red. When I bridge over the 103 relay to glow long when starting, but it didn't start.
What could it be? Anything in vacuum system? injector nozzle? any idea? Is there hydraulic valve lifters?
I have also checked diesel system, filter and air.
Any idea?