bobgawthorpe
New Member
I have a problem with the vacuum pump for the brake servo it does not suck as it should I have changed it and get the same result which means the brakes are not very good, any suggestions?
Nodge68
Well-Known Member
Maybe the vacuum pump is fine but the brake booster filter is blocked or the diaphragm is split?
bobgawthorpe
New Member
does any one know what the vacum pressure should read on tick over?
Nodge68
Well-Known Member
That vacuum would vary from engine to engine a bit but something around 18"Hg wouldn't be far out. Does the vacuum hold after the engine has stopped? If not then the fault is likely the brake booster diaphragm.
bobgawthorpe
New Member
Thanks for that, but when the hose is off the pump and engine running there is very little suction,a gentle lifting of the finger tip skin. You mention booster filter where do i find that?
