FREQUENTLY ASKED QUESTIONS
Where are you located and can I fly my aircraft to you?
We are located on the Palo Alto Airport (PAO) just 12 miles
north of San Jose Airport in the San Francisco Bay Area. You can taxi right
up to our facilities on the airport.
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What does an engine overhaul cost, and can I order an exchange engine?
The prices for our engine overhauls and exchanges are quoted by individual
request and will vary depending on aircraft model, engine specification and
series of overhaul requested. Exchange engines for most popular models can
be ordered in advance. Go to "Instant quote request" for an immediate quotation.
What kind of performance
change could I expect?
We have outstanding responses from our customers on performance change. The
most notable change reported is reduction in engine vibration and improved
smoothness of operation. Engine vibration is monitored using a full
frequency domain spectrum analyzer with piezoelectric accelerometers
attached to the engine. With this information we can analyze the amplitude
of vibration of individual parts that move internally at different speeds in
the engine. By reducing an engine's internal out-of-balance condition, we
can improve engine thrust output by reducing the energy loss associated with
conflicting internal counterbalancing forces. The net result is more
available energy to drive the propeller and improved performance. Test results have
shown that we have been able to improve factory new six-cylinder engines up
to 50% in vibration at various frequencies and pre-owned engines averaging
up to 400-500% in many cases. Aircraft speed and climb
performance improvements have also been routinely reported by our customers.
This factor will change for each individual
application, and we suggest that you contact some of our clients to gather
this information. We have a referral list clients available.
Do you use a Dynamometer to test the engine for power?
We have a specially-designed thrust velocity load cell for testing our
engines. The engine is installed into a hydraulically actuated engine mount
that is attached to an electronic load cell that measures the "real time"
pulling force in lbs of thrust using the aircraft propeller. The original
design aircraft induction and exhaust system is utilized to best simulate
real time operational conditions. This unit also monitors every available
test parameter for an engine. This very sophisticated load cell is a
one-of-a-kind, not to be confused with a "Dyno". We don't recommend running
an aircraft engine in a Dyno, because the majority of these units were
designed for automotive use where no propeller is attached. In most Dynos, a
water brake unit is attached to the crankshaft without the propeller and
there is no simulated thrust force generated from a propeller. This provides
insufficient information to determine an aircraft engine's thrust force.
In some installations, the use of a Dyno can even create internal
problems for the engine being tested. Crankshaft transfer
collar lubrication problems can develop as a result of testing an engine
without a propeller governor or propeller installed.
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What does engine blueprinting mean?
Blueprinting is a term commonly used in the automotive industry
to designate an engine that has been built to very high standards. The
question is, to whose standards is someone referring? The manufacturers have
published service limits and new limits for parts. In the
overhaul industry, the FAA only requires that an engine be built to service
limits to be legally signed off for an overhaul. The FAA has no definition
for blueprinting, so you have nothing more to rely on than the reputation of
the facility and the people you choose to do your overhaul. We
recommend a one-on-one interview with the engine assembler that will be
building your engine for you. We highly recommend that you come and visit
our facility and interview the machinists who perform these high quality
Why do you powdercoat
Powdercoating is an extremely
durable form of paint made up of specially designed pigments and resins.
These special resins and pigments are cured in an oven at 400 degrees
F and locked into the surface of external engine parts, providing for
extreme corrosion protection of your engine. Other engines that haven't
had oven curing of paint, such as spray paint or immersiion applications,
are highly subject to surface corrosion. Most engine parts are made from
aluminum, and when aluminum is exposed to oxygen, a substance called aluminum
oxide appears. This is the grayish-white corrosion that you see when looking
at many engine external parts such as crankcases. This weakens the aluminum
material and makes a part such as a crankcase prone to surface fatigue
which can become symptomatic of a crankcase crack. Powdercoating is one
of the best processes to eliminate aluminum oxide corrosion of an engine
crankcase, thereby reducing dramatically the chance of crankcase cracking.
Who actually builds the engines?
The industry's finest journeyman machinists build our engines. Some of our
assemblers are ASE Certified Master Machinists and (CNC) Computer Numeric
Control Machinists. Other technicians include high-performance engine
building experts who have extensive experience in airflow management, engine balancing, crankshaft and camshaft machining. We
have several licensed FAA aircraft inspectors and an FAA Designated Airworthiness Representative on staff and an Airframe and Powerplant
Do you out-source your work?
The majority of all operations are controlled in house in our full-service
machine shop. Some of the operations, including plating and crankcase
machining, are contracted to an outside facility that meets our in-house
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How long does it take to get an engine overhauled?
Depending of the model of your engine, it can take an average of two to
three weeks if there are no unusual circumstances. Delays can occur in the event
of supplier parts shortages or special repairs. If the customer
can give us repair authorization in advance, it decreases delays
considerably. After an engine is disassembled and inspected, we contact the
owner to report the internal condition. The customer's preferences on
repairs after inspection will determine the time for any additional repairs. Often, customers like to come in and personally examine
the condition of the engine at inspection stage. Exchange engines ordered in
advance have no delay and can be shipped via truck or airline to anywhere in
the world. For multiple orders of the same series engines, down time can be
Can I get my own engine overhauled?
Most of our customers want to have their own engine overhauled. This way,
you know the complete operating history of the engine.
Do you zero-time the engine?
The phrase zero-time engine is very misleading and implies that you are getting an
engine with parts that don't have any hours on them. Most people would think
if their engine was "zero-timed" by the engine manufacturer, the
parts were never operated before. This is untrue. A factory "zero-time"
engine with a new logbook can have an unknown operating history with
thousands of hours on the majority of parts. Due to the FARs, the
manufacturers are allowed to use parts that have unknown operating
history, install them in a factory-remanufactured engine, and call it
"zero-time". This only applies to the original engine manufacturer and may
not be represented by field overhaulers. When we overhaul your engine,
you know the exact time on the major components and you don't wind up with
an unknown operating history engine. The total time is entered in the logbook
and is signed off as "zero since major overhaul".
What parts are included with
We install the required mandatory replacement parts per the original manufacturer’s Service Bulletin #SB97-6 for TCM engines and Service Bulletin #SB240R for Lycoming engines in most cases. Black Edition IItm and Limited Edition IItm Engines come with New Cylinders that have been flow-balanced by our firm. For a detailed listing of parts included, see “Instant quote request” for further information.
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How does the cost of the overhaul
impact the resale value of my aircraft?
It will significantly increase the resale value of your aircraft. "Power
By Victor" engine overhauls have been specifically listed as an
increased value compared to other rebuilt engines in the aircraft valuation
book. See the Aircraft Blue Book Digest.
Several lenders add the full retail cost of "Power By Victor" engines
to the appraised value of your aircraft. This is a significant improvement
in resale value as compared to factory engine installations.
Can I fly the aircraft to you for installation?
Yes, we have several FAA repair stations fully equipped to handle your
entire fly-in aircraft servicing needs. Technicians are factory trained and
can handle all levels of repairs or modifications including: engine changes,
annual inspections, engine monitors, engine upgrades, interiors, sound
proofing and major modifications. We can also arrange for international pick
up and delivery.
What is your warranty, and
does the engine come with a new logbook?
We have an exceptional Express Limited Warranty that covers our Workmanship provided. Please see Warranty. Express Limited Warranty Coverage can be executed by any licensed A&P Mechanic or FAA Approved Repair Station that has been previously approved by Victor Aviation. For approved facilities in your area please contact our Technical Services Department. All “Power by Victor” engines are delivered including a New Engine Logbook.
How long have you been in business?
Victor Sloan founded Victor Aviation
in 1974 and has been the leader in piston engine overhaul quality ever since.
Can I buy the engine overhaul direct from you or do I have to go through my
You can buy the engine direct from us, or purchase can be arranged through your FBO.
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Can my own mechanic install the engine?
Yes, you can have your mechanic install the engine, but be sure that he is
well briefed on the manufacturer's installation instructions and has all
the proper equipment. Initial engine run-in is critical, and we recommend
that your mechanic contact us prior to first-start of the engine.
Who can perform warranty
work on the engine?
With prior authorization, any qualified maintenance technician can perform
warranty work anywhere in the world. We recommend that customers take
the aircraft to one of our many authorized "Power By Victor" engine
service facilities. For location of the center nearest to you, please
call our technical services department at (650) 354-1399 or look under approved service facilities.
Can you pick up and deliver the aircraft?
Yes, we can pick up and deliver all over the world. We have several available
ATP rated pilots with thousands of hours of flight time. Bill Cox, editor
with Plane&Pilot Magazine, performs our international ferry flights and
routinely flies to Europe, Australia, South America and Africa. To obtain
a quote for this service, call Bill Cox at 310-521-9596, or visit email@example.com.
Do you provide customer references?
Yes, upon request for a quote, ask for a current binder of customer
references that includes letters from a wide variety of our customer bases.
All specifications must be confirmed at time of order and are subject to
change without notice
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