Bosch pump rebuild

[blinkyeatu]

I've not tried the solenoid yet but last time I stripped the punp I did pop it of and free it all u. I can here it clicking also today I cracked the union and there is fuel but just at a very low pressure.

I didn't remove the return banjo and both the line are connected the right way round.
DONT WORRY I didn't try and run the car with it blocked just squeezed the primer .
The but I'm struggling to understand is how the fuel returns regulated is there a one way valve somewhere that's allows the fuel through at a certain pressure that might of broken??

I didn't know about the glow plug thing that's good trick to know

I read a Cummings thread and he had the EXACT same thing going on. In the end he took the pump apart again and the fulcrum to control collar bit had snapped off but I still don't why the return would do what it's doing.... But I've had enough of stripping it down also that Bliming 10mm Cambelt coverr bolt.

Also spoke to a local old diesel guy...... What a mistake..... 35min of him telling me I can't do it because of X&X reasons and that the pumps won't be the same because it's of a 405 DT, he couldn't comprehend that I could time the woodruff keys up or undo the triangle bolts. JESUS CHRIST!! He did them tell me it's ducked he has no idea and it would cost £200+ to fix