volvo n12 issues

Hi all, i have been tidying a 1985 n12 up over the last twelve months,finally nearing the endjust a few hurdles now if anyone can shed some light would be great.
1. brohms brake valve in cab on start up leaks can only build pressure if held in
2. when driving their is a clonk in the frt end could this be spring pins or bushes.
3. the valve on the crossmember behind gearbox is leaking air out the exhaust port is it linked to a leaking brake booster on the frt diff
a few other issues will post later.
Cheers Rapid

Straight away i'd say problem 3 is causing problem 1.

Hi All, does anyone have a diagram of the the fuse box on a n12

Hi Rapid ,please check your personal email thanks