Di Pino Engines
Never consider your engine a "toy", but a true and proper
internal combustion engine of the last generation, with a power that could
injure yourself or others if not used with due caution. Responsibility for any
damages caused by incorrect use will be due to the owner of the engine who must
use the greatest professional care. If another person uses your engine in any
way, you must ensure they have a copy of this manual. Never start or use the
engine in a closed space. The fuel used for model engines is poisonous. Make
sure it never comes into contact with the eyes or mouth. Always keep the fuel
in a clearly marked container and out of the reach of children. This sort of
fuel for model engines is also highly inflammable.Keep away from any open flame,
excessive heat, sparks or anything else that could set it alight. Never smoke
or allow others to smoke nearby.
These small engines generate high temperatures. Never touch any part of the
engine until it has cooled down. Direct contact with the exhaust pipe, the head
or the manifold in particular will cause severe burns.
This is an engine for competitions, high-powered with 3.5 cc capacity.
It is supplied with a "C - Conical" glow plug, which improves
considerably engine performance in terms of both power and regular functions,
whilst reducing fuel consumption. Anyone wishing to use the “S – Standard” plug
has to replace only the burn room, found in the spare parts list for this
engine. The air reducers on the
carburetor can be exchanged, thus adapting the engine functions to various
types of tracks and different driving styles. The 7.5-8.5 mm reducer is part of
standard supply, but spare parts include all sizes from 5 mm to 9 mm.
Mount the engine securely on your model, following the manufacturer's
instructions and using appropriate screwdrivers and wrenches. Install an
efficient exhaust and make sure it remains so. Frequent and close exposure to a
noisy exhaust (especially in the case of powerful high-speed engines) can damage
your hearing and the noise can be bothersome to other people even at a
Carefully check that the cables for lighting the glow plug and/or the battery
cables for starting the model do not come into contact with any engine's
rotating parts. Check also that the supply system connecting the carburettor
and accelerator servo control have been assembled correctly. To switch off the engine, close the carburetor
completely using the lever that controls the accelerator on the radio handset,
then manually close the suction on the carburettor air filter, or press the
fuel pipe. Never try to switch off the engine by slowing down the flywheel with
your fingers or other metal tools. Immediately
after switching off the engine, when the glow plug is still hot, the engine
could restart WITHOUT the plug battery being connected, due only to the
rotation of the engine parts. For their own safety, keep all spectators (adults
and children) at a distance of at least five metres when you prepare to start
your model car.
4. Start up
Before starting and running in the engine, it is necessary to install
correctly and with great care the following accessories.
Insert carefully the supplied
plug in the cavity of the engine head, making sure the threads match before
tightening it firmly. (The plug is supplied already mounted on the engine, but
we recommend this procedure every time you have to remove it. Conical plugs do
not have gaskets).
manifold: Mount the silicone gasket
on the special grooves on the exhaust. Do not use metal tools that could cut
the gasket, use only your fingers. Spread a light veil of oil on the gasket
then insert the manifold, turning it gently into its position with the 4-hole
flange. Insert the 4 springs provided in their special housings.
pipe: Mount the silicone gasket on the
special grooves on the exhaust pipe. Do not use metal tools that could cut the
gasket, use only your fingers. Spread a light veil of oil on the gasket, then
insert the exhaust pipe in the manifold, turning it gently. Mount the 3 springs
provided in their appropriate housings. The exhaust pipe must then be fastened
to the chassis using a flexible metal wire that will absorb vibrations and
prevent any damage to the exhaust pipe.
engine is supplied with its carburetor installed but not firmly fastened in the
standard position. Loosen the fastening screws and place the carburetor in the
ideal position for your model car. Press the carburetor towards the engine
while tightening the fastening screws. Tighten the screw as firmly as possible
without fear of ruining the carburetor body.Now mount the air filter described
previously. Make sure that the surfaces
of the mounted engines are all on the same level and on the same plane. Incorrect
installation can cause, at high temperatures, distortion of the casing,
bearings, etc., resulting in a considerable loss of performance. We recommend
use of the correct screws, according to the type of model, and to check that
the fastening holes are perfectly centred.Check also that the engine casing
does not touch the base of the model's chassis. Now you have completed
the engine with all its parts and mounted it on your model, continue as
guarantee long life and top performance, each engine needs to be run in,
bearing in mind that the more careful the running in is, and the longer
is the period the engine gives its best performance.
Running in must be done carefully with the engine installed on the model, in
the following way:
- Fill up the tank with
- Remove the plug
temporarily to check that, when connected to the battery, the filament
heats up and becomes incandescent (Orange/yellow). Put the plug back into place.
- Switch on the transmitter
and receiver and set the accelerator slightly open from the minimum
- Start the starter motor
on the starter box so the fuel flows from the tank to the carburetor. If
the engine stops, do not force the starter box, but release the engine,
using a screwdriver on the flywheel.
- When you see through the
transparent silicone pipe that the fuel is reaching the carburetor,
connect the battery to the plug to heat the filament and start the engine.
PLEASE NOTE: it is of extreme importance not to leave the engine in
acceleration for a long period of time when the car model is not in
contact with the ground (model resting on the starting box) because it
would quickly overheat, causing serious damages.
- When you switch on the
engine, leave it running a few minutes with oily carburation, with the
battery connected to the plug and with the wheels turning freely at a
distance from the ground. Under these conditions, the oily carburation
perfectly lubricates all the engine's internal parts. To know whether the
carburation is sufficiently oily, abundant smoke should be issued by the
exhaust pipe. Repeat the operation until all the fuel in the tank has been
- Disconnect the plug of
the battery and try to run the car on track. If the carburation is too
oily, slowly increase acceleration to keep the engine running as long as
possible. If it stops because carburation is too oily, turn the full speed
needle clockwise by 30° and try again.
- If the engine continues
to run even when carburation is very oily, continue to use the model until
you have consumed at least 3 tanks of fuel. Then close the full speed
needle by a further 30° and consume another 2 tanks of fuel. Repeat the
procedure until you have consumed at least 6 tanks of fuel. However the exhaust pipe should continue issuing
- To switch off the engine,
close the carburetor completely using the lever that controls acceleration
on the remote control, then manually close suction on the carburettor air
filter, or press the fuel pipe. Never try to switch off the engine by
slowing down the flywheel with your fingers or metal tools.
tuning: Final tuning of the carburation
must be done only after completing the running in, and according to the
- Run the model (with the
carburetor completely open) on the longest possible straight track to
observe the speed. Close the full speed needle by 30° and repeat the run,
noting down the improvement in performance.
- Continue with more runs,
closing gradually the full speed needle, with the intention of reaching
the straight run at the highest speed. Always remember that if the needle
is closed too much (carburation too lean), the engine overheats, loses
speed with a visible reduction of exhaust fumes. In this case, slow down
immediately, stop the model and open the full speed needle by 45°.
- With the engine running,
and the wheels of the model raised above the ground, close the accelerator
and leave it on minimum for at least 5 seconds, then fully reopen the
accelerator. If at this point the engine discharges an excessive quantity
of smoke and the model does not accelerate smoothly and rapidly, probably the minimum carburation is too oily. In
this case, turn the base speed needle clockwise by 90°. Instead, if during
the rapid acceleration phase the engine suddenly "coughs", the
minimum carburation is too lean. You can correct this by opening the base
speed needle by 90° anti-clockwise.
N.B.: the carburetor needles must be adjusted gradually and
not more than 30°, always checking accurately the effect of any tiny adjustment
on the accelerator.
Make the adjustment patiently, under contest conditions, until the engine
responds rapidly and promptly to accelerator controls.
Adjustments of the carburetor by means of the minimum and maximum
needles cannot be made accurately when the wheels of the model are raised from
the ground since this does not reproduce the real conditions of use, and an
operation of this kind could damage the engine by overheating.
When you reach the optimum carburation, a slight trail of smoke will be
visible during high-speed runs and the engine rotation regime increases
smoothly during acceleration. Remember that, if carburation is too lean, the
engine will overheat and will not give maximum performance.
As for all engines, we recommend setting a slightly oilier carburation
than the optimal point, as a safety measure. If the engine,
with the carburetor completely closed, remains at a too high minimum regime,
loosen the minimum screw in anti-clockwise direction to reduce the opening of
the carburetor throttle.
Never ever exaggerate the number of revolutions because the engine can
reach even 52,000 rpm, which would cause serious damage to the crankshaft and
A. Top speed needle: to adjust fuel input at maximum regime, when
the carburetor throttle is completely open.
Turn clockwise (--) to reduce the quantity of fuel, for leaner carburation.
Turn anti-clockwise (+) to increase the quantity of fuel, for an oilier
B. Bottom speed needle: to adjust quantity of fuel in partial
acceleration at medium regime, while opening the carburettor throttle.
Turn clockwise (--) to reduce the quantity of fuel, for leaner carburation.
Turn anti-clockwise (+) to increase the quantity of fuel, for an oilier
C. Idle adjusting screw: to adjust the engine's minimum regime
when the carburetor throttle is completely closed. Turn clockwise (+) to increase
the minimum regime. Turn anti-clockwise (--) to reduce the minimum regime. N.B.:
although the carburetor settings are already indicatively calibrated by the
manufacturer, they may need to be adjusted according to various uses of engine
and type of fuel.
Remember that the performance and life of your
engine depend directly on its care and maintenance, as described below.
filter: Tiny dirt particles, present in
all fuels, can accumulate and partially obstruct the flow of the fuel, causing
an incorrect and unreliable carburation, with the consequent reduction of
A fuel filter must be installed on the suction pipe in your supply container to
prevent entry of any foreign bodies in the fuel can. We also recommend
installing a good filter between the tank and the carburetor.
Always remember to clean the filters regularly to remove any dirt that has
For the carburetor to function
correctly, the small holes through which the fuel passes must be kept clean. At
regular intervals, disassemble the carburetor and clean each needle and
adjustment screw. Carefully check the O-rings on the various pins, making sure
they are not damaged or broken. We recommend changing the O-rings regularly
even if they are not broken. After cleaning, reassemble the carburetor placing
the needles in the positions they occupied previously. Small errors are
possible in positioning, so we recommend checking the carburation when the
engine is restarted.
After each competition, empty the
fuel tank completely. Then charge the plug and restart the engine to burn up
completely the fuel still present in the silicone pipe. This ensures that the
remaining fuel does not deposit residue oil on the tank floor which would
create problems when the engine is
Engine: When the engine stops because it has used up all the
fuel in the tank, remove the carburetor and inject a few drops of standard oil
into the engine, and turn the engine using the electric starting box for the
4-5 seconds necessary to distribute the oil over all its internal parts. This
procedure reduces the risk of internal corrosion until the engine is next
started. To clean the exterior, we recommend use of methanol. Do not use
solvents that could damage the silicone fuel pipe.
This engine has been produced using high-tech materials and maximum
precision machines. However, you have to consider that the severe conditions
prevailing during competitions and the use of fuel containing increasing
quantities of nitromethane constitute situations that cannot be controlled by
We therefore regret that we cannot extend our normal warranty conditions to
Blended fuel: specifically for model racing cars, containing 10% -
30% nitromethane and 8% - 10% oil.
Initially we recommend use of a mix containing less nitromethane (20%), and
more oil (10%).
Later, after running in, you can use more nitromethane (30%), and less oil
The ideal is then to use the same sort of fuel, but if you wish to change the
brand or mix, we recommend repeating the running in phase as if the engine were
We want to remind you that the quality of the fuel influences greatly
the engine's performance and useful life, so with blends containing a high
percentage of nitromethane, it generates more power but reduces the life of the
plug: The choice of the correct plug
and the compatibility between plug and fuel can greatly influence engine
performance, so you must choose the best type of plug only after a brief
test. Install carefully the plug using
the appropriate wrench; the plug must turn easily until completely inserted.
Then, tighten closely so the plug is secure.
Plug life: In case of these high-performance model-racing
engines, plugs have to be considered as consumable components.
The high technology used in production, and the top quality of the products
used, ensure that our plugs have a longer life than others on the market.
However, the life of a plug can be lengthened and maximum engine performance
guaranteed by a careful use, for example by:
the right plug.
good quality fuel.
- Never leave the pipette attached to the plug
when warming up the engine or when it is running.
- Never use the engine with a too lean
carburation, especially when the full speed needle is closed.
glowplug:: Naturally, apart from
when the plug is burnt out, it may be necessary to replace it because it is not
giving maximum performance, such as when:
spiral filament is deformed
- Dirt is stuck to the filament or the plug body
- The surface of the filament has become rough and
- The engine tends to cut out when at minimum
||Di Pino Buggy .21 Orr-road 5Pincluding 2053 Exhaust system 199,- euro
STD tuned crankshaft, single bushed conrod 4,85 mm, CNC manufactured piston, chrome sleeve 5 ports /b>