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Frequently Asked Questions
Why are there two aircraft magnetos?
The dual arrangement of aircraft magnetos produces a smoother and more complete combustion of the fuel mixture. It also provides for ignition redundancy, so that the engine will continue to run in the event that one magneto malfunctions.
Why do aircraft need magnetos?
In aircraft engines, it is important to maintain an ignition system independent of the eletrical system, so that the engine will continue to run in the event of alternator or battery malfunction. Additionally, aircraft magnetos provide a compact and reliable means for igniting the spark plugs.
Does the BMC kit come with the piston?
No, BMC kits do not caintain the piston. However, it comes with the hardware needed to complete the job and installaiton tooling.
How do I know if the BMC kit will fit my aircraft?
It is critical the owner or maintenance shop obtain a PN off the brake master cylinder assembly, not from the IPC manual.
How do Marsh Brothers' kits differ from the OEM parts they replace?
The kits fit exactly the same space that the OEM parts do. However, the most important difference is that the parts in the kits cannot corrode or seize together because of the self lubricating polymer bushings used to replace the steel bushings. If the steel OEM parts corrode and seize, the result is costly repairs to the supporting structure in the wing.
How easy are the kits to install?
It's just a matter of removing the doors, pressing out the steel bushings and then pressing in the replacement parts. The kits include all necessary hardware including new bolts and spacers. Where the OEM sleeve part is flanged, the space is made up with a thin washer. Installation videos are available to demonstrate kit installation.
What are the benefits associated with Marsh Brothers' product?
Longer life-time, grease-free operation, does not support corrosion, decrease in weight, self lubricates.
What if I lubricate the polymer bushings?
You don't need to, but it's not a problem if someone doesn't know the bushings have been fitted and decides to put lubrication into the hinges. The bushings will function properly in oil or grease, but it is not necessary.
What is the benefit of the spinner washers?
Typical spinner washers are made from thin nylon and require frequent replacement. Nylon washers fail under the pressure exerted by the screw's head. MBA spinner washer solves this problem by conforming the the curvature of the spinner, and its extra thickness has a vibration dampening effect.
What is the polymer used in the kits?
Marsh Brothers developed a new poylmer formula specifically for aerospace which they call AeroTough™ GF, for "grease free". Lubricant is bult into the polymer, completely eliminating any need for periodic lubrication.
Which fuel cap washer will fit my fuel cap?
We have three types of fuel cap washers. In order to know the correct washer, the fuel cap part number must be known. It can usually be found at the bottom of the fuel cap assembly.
Will one Landing Gear Door Hinge Kit do the entire aircraft (both RH/LH main gears)?
Yes, one kit will do both the left and right main landing gear doors.
Any tips to help me search for what I'm looking for?
If multi-word phrases do not produce results, then try searching for each word individually. The search feature is not case sensitive. All or part of the part number may be entered.
Help me use your eligibility search feature.
Here are some eligibility search tips:
- If you do not know your serial number, you can just select your aircraft make and model.
- The model you select must be specific: a 172 is not the same as a 172B.
- Serial numbers must be complete: for example, 15073660 cannot be entered as 73660.
- Hyphens in serial numbers are optional: for example, 28-7325001 and 287325001 are considered equivalent.
- For web browsers with JavaScript enabled, you do not need to click the Submit button when you select a make or model. After typing a serial number, you do need to click the submit button.
- Due to the limitations of our product database, some parts that are eligible for your aircraft may not appear on the returned list of products when your aircraft make, model, or serial number is selected. If you can't find what your looking for, please call or email us.
- Due to the possibility of error in eligibility data and the possibility of non-standard aircraft configurations, McFarlane Aviation, Inc. cannot be responsible for application of our products. The user of the products must verify correct eligibility and function of our products.
How long will items remain in my cart?
If you are a registered user and are logged in, items will remain in your cart until you place an order or remove them. If you are a guest or are not logged in, items will remain in your cart for two weeks.
Why did my shipping cart lose the items I just added?
Using your browser's back or refresh buttons may cause unexpected results such as, adding previously added items to your cart again, or displaying incorrect quantity or subtotal information in your shopping cart summary box in the upper right corner of the page. If the shopping cart summary is displaying an incorrect quantity, then click on the View Cart link to see an up-to-date list of items in your cart. You may then add or remove items.
Why should I log in or register?
Logging in is not required to browse the McFarlane website or even to add items to a shopping cart although items may be lost between visits if not logged in. The contents of your shopping cart will be saved between visits even if you are using another computer. Any applicable discounts (for FBO's, flying clubs, etc.) will be reflected in the prices shown on the website when you are logged in. Your address and billing information is saved with your login account after your first order for your convenience.
How should I inspect my exhaust system?
Refer to AC91-59A or Nicrocraft Exhaust system checklist. The American Bonanza society puts out a good video by Bob Ripley on Beechcraft exhaust inspection that is applicable to most types of aircraft.
I have an STC/upgraded engine on my airplane. What muffler fits it?
Refer to STC Paperwork. Should specify if original muffler can fit, or a different style –possibly even for a different brand of Aircraft could be used.
What is the warranty policy?
12 month warranty, unlimited hours. Please contact our sales team for further instructions.
Why choose McFarlane?
OUR PARTS ARE ENGINEERED TO LAST LONGER WHILE SOLVING KNOWN SAFETY ISSUES
OVER 40,000 PARTS IN STOCK WITH SAME DAY SHIPPING IF ORDERED BY 3PM
OUR TEAM PROVIDES THE OLD-FASHIONED CUSTOMER SERVICE THAT YOU EXPECT
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