Bromsgrove Defender
Well-Known Member
storm99
Spreading Joy & Harmony
Its a small hovering bird.
Bromsgrove Defender
Well-Known Member
Good grief
What have I started
The Hummel valve is the black plastic thing attached to the rocker cover with the engine breather pipes attached to it AKA rocker breather
It works by centrifical action to remove the oil and return it to the crankcase before it reaches the air intake
It is held onto the rocker cover by a single bolt and I dont know the size
I need to lie down for a bit now
What have I started
The Hummel valve is the black plastic thing attached to the rocker cover with the engine breather pipes attached to it AKA rocker breather
It works by centrifical action to remove the oil and return it to the crankcase before it reaches the air intake
It is held onto the rocker cover by a single bolt and I dont know the size
I need to lie down for a bit now
Richard Martin
Well-Known Member
Good grief
What have I started
The Hummel valve is the black plastic thing attached to the rocker cover with the engine breather pipes attached to it AKA rocker breather
It works by centrifical action to remove the oil and return it to the crankcase before it reaches the air intake
It is held onto the rocker cover by a single bolt and I dont know the size
I need to lie down for a bit now
M8 I think, 10mm spanner...length...about 60 or 70mm
Richard Martin
Well-Known Member
You need to watch out that it's not too long, if you screw it in too far you'll knacker the thread in the rocker cover, it's a blind hole. After a previous owner knackered mine I replaced it with a long stud and a nut I found in my box of bitsCheers Richard
The one in it now is knackered as someone seems to have tried to remove it with a hammer
It has quite a bit of the shaft unthreaded where it goes through the valve,that why I was looking for a part No but I spose an ordinary bolt would
