Is the 1967 M20E model year different?

[ArrowBerry]

Over the last four years of owning our 1967 M20E I've noticed that the '67 model year is not as well supported in parts at some vendors as the '64-'66, and '69+ model years. From what I have read, the M20E wasn't available in '68. 

For example, when looking at control cables for throttle, mixture, and prop at McFarlane they have nothing in their catalog for the '67 model year. They have up to '66, skip '67 and '68, and continue with '69 and onward. It made me wonder, is there something different about the '67 year that would make them exclude it?

When I look at part numbers for a throttle cable it's the same number for '65 and 66' E models, and '66, '67, and '68 F models. Considering the the E and the F are basically the same firewall forward, why would the '67 E not have the same cable? Or does it, and its just not listed in their catalog?

I understand that McFarlane can also make custom cables based on an owner produced original but they are not FAA-PMA certified... so what kind of paperwork is required to install this in a certified plane?

 

[M20F-1968]

I see no reason why the 67 and 68 E relative to the control cables.  The 68 F has a different Johnson bar than the 67.  There are some changes elsewhere, but you should be able to get what you need from McFarlane, or even find what you need as a stock cable from an MSC.

John Breda

[EricJ]

2 hours ago, ArrowBerry said:

Over the last four years of owning our 1967 M20E I've noticed that the '67 model year is not as well supported in parts at some vendors as the '64-'66, and '69+ model years. From what I have read, the M20E wasn't available in '68. 

For example, when looking at control cables for throttle, mixture, and prop at McFarlane they have nothing in their catalog for the '67 model year. They have up to '66, skip '67 and '68, and continue with '69 and onward. It made me wonder, is there something different about the '67 year that would make them exclude it?

When I look at part numbers for a throttle cable it's the same number for '65 and 66' E models, and '66, '67, and '68 F models. Considering the the E and the F are basically the same firewall forward, why would the '67 E not have the same cable? Or does it, and its just not listed in their catalog?

I understand that McFarlane can also make custom cables based on an owner produced original but they are not FAA-PMA certified... so what kind of paperwork is required to install this in a certified plane?

 

Are you asking for a cable based on model year or based on serial number?    The model years aren't really anything "official", they're mostly marketing.    Changes in parts or configurations are typically reflected by serial number.    If you have a parts catalog (probably available in the dowload area here), parts are listed per serial number range.   There are no delineations there based on "model year".

[67 m20F chump]

Years ago when I had a 60’ Debonair I needed a trim cable that ran front to back.  Nobody made the part.  We removed it from the plane and shipped it to MacFarlane.   They made one and my IA was happy with the part.  My point is you can send them the old cable and they will make you a new one.

[Fly Boomer]

11 hours ago, ArrowBerry said:

I understand that McFarlane can also make custom cables based on an owner produced original but they are not FAA-PMA certified

Best way to get a perfectly fitting part is to send them your old cable.  McFarlane was the OEM manufacturer of those cables for many years, and zillions of Mooney drivers have gone to them for replacements.  Talk to your maintainer, but I can't believe your maintainer would object.  I suspect if you order a new one from Mooney, they just send the specifications for your serial number to McFarlane, and have it drop shipped to your MSC.

[ArrowBerry]

On 12/1/2024 at 11:31 PM, EricJ said:

Are you asking for a cable based on model year or based on serial number?    The model years aren't really anything "official", they're mostly marketing.    Changes in parts or configurations are typically reflected by serial number.    If you have a parts catalog (probably available in the dowload area here), parts are listed per serial number range.   There are no delineations there based on "model year".

Based on serial number.

This is the M20E section of the engine controls catalog. The first three lines are quadrant style cables for later models, the fourth line is '65 and '66, and the last line is '69 and '70. My serial number is 670024.

Honestly the paperwork sign off isn't really a concern for the reasons stated, everyone knows McFarlane. I was more curious if there is something structurally or mechanically different for the '67 year that would make the cable physically different. Length, dimension, a clearance somewhere? 

[cliffy]

If McFarland doesn't have your cable in p/n stock they will make one with YOUR participation in the design process as the owner of the airplane. THIS IS THE OPP  (owner produced part) PROCESS.

You fill out their :design" sheet that they supply and then you have them make the part using their "approved" manufacturing methods.

You then sign the airframe log as owner and having participated in the design and supply of the part after which your A&P will sign off on the installation of the OPP part  -  IF he likes the process and the part.   Keep a copy of the design sheet in your logs just in case   BTDT