practical
Cooling water using the bypass with the thermostat closed Cooling water flowing through the block with the thermostat open
a standard G-clamp available: however, it
is advisable to use a proper hose clamp
as that will be less damaging to the hose.
Pump the Rydlyme through
your engine
Now that we have our plan and a method
to prevent our Rydlyme bypassing the
engine entirely, it’s time to set up the
circuit. The Rydlyme is circulated using a
small 12V submersible pump.
n Remove both your engine anodes
(there is one in the head and one in the
block) or else these will get gobbled up
by the Rydlyme.
n Remove your water pump by undoing
the bolt and pivot bolt holding the water
pump on. (Pictured right)
n Remove the impeller from your
water pump by undoing the tiny bolts
on the back-face plate and taking it
out with either an impeller removal tool
or a couple of screwdrivers, being
ABOVE: Bypass
hose clamped
The final route
our Rydlyme will
take through
the enginecareful not to damage the housing. Put
the plate back on, making sure that you
replace the bolts in the correct order.n Take the inlet pipe off the water pump
and attach your hose pipe and little 12V
pump with a Jubilee clip.Undo the bolt and pivot bolt Attach the hose and the little 12V pump
n Remove your thermostat. Be very gentle
with the two bolts that hold the housing
on – if you shear them off, you will be in a
world of pain. (This I know at first-hand!)n Replace the housing without the
thermostat in it.