1. I already have a chain-oiler. Do I need to replace
those lines with ones provided?
The Pro-Oiler system is pumped,
It's able to push oil through much smaller ID tubing
(1.8mm) than gravity feed systems (which typically use 5mm OD x 3mm ID
Keeping the quantity of oil in the lines as low as
possible is a major plus all round, because:
The lower the oil volume in the line, the quicker the
lines fill when priming [see FAQ: Priming]
1m of 3mm ID line contains 7.07ml of fluid
1m of 1.8mm ID line contains 2.54ml - just over 1/3 as
On a normal "dry" setting, it takes about
170km to pump the contents of a 1m length of 1.8mm ID line,
but... about 470km of 3mm ID line!
The smaller the head of oil in the lines, the less the
"pull" of the capillary action - and the less chance there is of an
oil drip (from whatever source) when the system is off
2. I have air bubbles in the line. Is this a problem?
It is critically
important to work out why the air is there.
Air in the lines can be
an indication of one of the following:
Small air bubbles (up to 5mm long) in the lines after priming
empty oil lines
Low oil level,
or scavenge in the oil container is/has been stuck out of the oil and drawn
easily fixed by topping up the oil level (See FAQ:Oil
Container for more info on oil level)
An air leak in the tubing upstream of the
An air leak in the tubing downstream of
critical, the line can
drain while the system is off, and disrupt or even halt lubrication.
and Tricks and Troubleshooting
for more information on air in the oil lines.
3. There is a trace of oil at a junction between a line
and silicone connector. Is this a problem?
If there is any air in the lines, then this may be the
point at which the air is entering. In this case, yes
it is a problem
If there is no air in the lines, then it is not
essential to fix the problem.
4. I'd like to use brake-line or brass tubing instead of
the lines provided. Is that a problem?
Functionally no. However
there is an important issue:
If there is any air in the lines, then you will not be able
This is a major problem for troubleshooting oil delivery
It makes priming hit and miss.
If you wish to create a fixed and convoluted section
(eg. to follow the contours of the inside of the swing-arm) , then consider
using the provided 3mm od tubing with a wire insert to give it the required
shape. You can also lightly heat the polyamide tubing to form it - practice on
a spare piece!