08-31-2015, 11:05 AM
Successful Engine Run-in .
Installing a new rebuilt engine in your car
will give it a major “shot in the arm” in any
number of ways. In order to get the most of
this change we suggest that you take the
time while the engine bay is empty to do a
thorough cleaning of the area.
We suggest you carefully examine such
items as motor mounts; fuel, water and
clutch hoses and replace them if they are
cracked or stressed. This is also a good
time to have the radiator checked by
reputable shop and have any necessary
repairs done. Be sure to check the condition
of your electrics, looking for corroded
connectors and frayed and /or broken wires
(including battery and ground cables) since
a bad ground or corroded connection can
take away all the performance you are
buying!
Also carefully examine your fuel and
hydraulic lines and repair or replace them
now, while you have the room to do it
comfortably.
This is also the time to carefully check the
carburetor(s) and rebuild if required. Look
closely for play around the throttle shafts,
since air can leak past a worn shaft and
give you fits at tune-up time. Check and
replace points, cap and rotor as needed
and look for excess play in the distributor.
Remember, some of our cars are 40 years
old or better, so make the extra effort to
give that new engine a good home!
Run-in Procedures
Read these procedures thoroughly before
starting your engine. Have a good shop
manual nearby.
Your Mini Mania rebuilt engine comes to
you in a DRY condition. It has been put
together with quality assembly lubricants in
all the areas of high stress and extreme
pressure, such as the cam and lifter
interface, the crankshaft main and rod
bearings and the valve train. It has not
been pre-run or dynoed, so you will need
to “prime” the oil pump while filling the
sump for the first time.
To do this, remove the ”banjo” bolt at the
upper rear of the engine and fill the
passage leading to the oil pump with motor
oil. Replace the bolt. Fill the oil filter with
oil and replace. Continue to pour the rest
of the required amount of oil through the
oil cap. Use a high-quality oil such as
Valvoline, Castrol or Pennzoil. Never use
"bargain" oils in your engine at any time!!!
The money you "save" will be spent any
times over in maintainance costs at a later
date. DO NOT, DO NOT, DO NOT use
synthetic lubricants of any kind in this
engine at any time! This is particularly
important for Mini owners who have to
lubricate both the engine and the
transmission with the same oil!
Remove the spark plugs and turn over the
engine with the starter until the oil
pressure gauge shows full pressure.
Be sure to correctly fill the cooling system
with the correct mix of coolant (anti-freeze)
and water according to the manufacturers
recommendations (also found elsewhere in
this database) or use a water pump
lubricant in the water.
Re-install the plugs and prepare to start the
engine. The carburetor should have the jet
tubes set 2 turns down from flush with the
bridge and the needle(s) centered in the
bore(s).
Start the engine and hold the engine speed
at 2000-3000 RPM for at least 20 minutes.
This ensures plenty of oil to the camshaft
bearings. Speeds slower than 2000 RPM
may starve a cam of oil. You may want to
do this during the day to avoid
disagreements with your neighbors.
After this initial run-in, retorque the
cylinder head, HOT, to 50 ft/lbs and
readjust the valves according to your shop
manual.
Do not exceed 3000 rpm for any prolonged
period for the first 500 miles, at which
time, change the oil and readjust the
valves. After this you may gradually increase
RPM limits over the next 1000 miles or so.
Installing a new rebuilt engine in your car
will give it a major “shot in the arm” in any
number of ways. In order to get the most of
this change we suggest that you take the
time while the engine bay is empty to do a
thorough cleaning of the area.
We suggest you carefully examine such
items as motor mounts; fuel, water and
clutch hoses and replace them if they are
cracked or stressed. This is also a good
time to have the radiator checked by
reputable shop and have any necessary
repairs done. Be sure to check the condition
of your electrics, looking for corroded
connectors and frayed and /or broken wires
(including battery and ground cables) since
a bad ground or corroded connection can
take away all the performance you are
buying!
Also carefully examine your fuel and
hydraulic lines and repair or replace them
now, while you have the room to do it
comfortably.
This is also the time to carefully check the
carburetor(s) and rebuild if required. Look
closely for play around the throttle shafts,
since air can leak past a worn shaft and
give you fits at tune-up time. Check and
replace points, cap and rotor as needed
and look for excess play in the distributor.
Remember, some of our cars are 40 years
old or better, so make the extra effort to
give that new engine a good home!
Run-in Procedures
Read these procedures thoroughly before
starting your engine. Have a good shop
manual nearby.
Your Mini Mania rebuilt engine comes to
you in a DRY condition. It has been put
together with quality assembly lubricants in
all the areas of high stress and extreme
pressure, such as the cam and lifter
interface, the crankshaft main and rod
bearings and the valve train. It has not
been pre-run or dynoed, so you will need
to “prime” the oil pump while filling the
sump for the first time.
To do this, remove the ”banjo” bolt at the
upper rear of the engine and fill the
passage leading to the oil pump with motor
oil. Replace the bolt. Fill the oil filter with
oil and replace. Continue to pour the rest
of the required amount of oil through the
oil cap. Use a high-quality oil such as
Valvoline, Castrol or Pennzoil. Never use
"bargain" oils in your engine at any time!!!
The money you "save" will be spent any
times over in maintainance costs at a later
date. DO NOT, DO NOT, DO NOT use
synthetic lubricants of any kind in this
engine at any time! This is particularly
important for Mini owners who have to
lubricate both the engine and the
transmission with the same oil!
Remove the spark plugs and turn over the
engine with the starter until the oil
pressure gauge shows full pressure.
Be sure to correctly fill the cooling system
with the correct mix of coolant (anti-freeze)
and water according to the manufacturers
recommendations (also found elsewhere in
this database) or use a water pump
lubricant in the water.
Re-install the plugs and prepare to start the
engine. The carburetor should have the jet
tubes set 2 turns down from flush with the
bridge and the needle(s) centered in the
bore(s).
Start the engine and hold the engine speed
at 2000-3000 RPM for at least 20 minutes.
This ensures plenty of oil to the camshaft
bearings. Speeds slower than 2000 RPM
may starve a cam of oil. You may want to
do this during the day to avoid
disagreements with your neighbors.
After this initial run-in, retorque the
cylinder head, HOT, to 50 ft/lbs and
readjust the valves according to your shop
manual.
Do not exceed 3000 rpm for any prolonged
period for the first 500 miles, at which
time, change the oil and readjust the
valves. After this you may gradually increase
RPM limits over the next 1000 miles or so.
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1979 GTS