-
Welcome to the new Commander Owners Group Forums. Please bear with us as the kinks are worked out and things are tweaked. If you have any questions or issues with the new platform, please post them here.
Gear Checkvalve
- Thread starter jrichards
- Start date
CenAir
New member
Worcester, MA
- Aircraft Year
- 1977
- Aircraft Type
- 114
- Reg Number
- N530CD
- Serial Number
- 14250
Re: Gear Checkvalve
Jim
Do you require prepayment and let us all know and not sure based on your post or a deposit etc ?
Jim
Do you require prepayment and let us all know and not sure based on your post or a deposit etc ?
Re: Gear Checkvalve
A bit of clarification. You reference the 112's but not the 114 as much. I thought mine already had the pressure switch. Or does it?
If it doesn't put me down for one. It was asked earlier but not answered. If there is a kit how much will the kit be?
A bit of clarification. You reference the 112's but not the 114 as much. I thought mine already had the pressure switch. Or does it?
If it doesn't put me down for one. It was asked earlier but not answered. If there is a kit how much will the kit be?
San Diego, CA
- Aircraft Year
- 1974
- Aircraft Type
- 112/A
- Reg Number
- N144TP
- Serial Number
- 144
Re: Gear Checkvalve
Jim,
Alright I'm in for the check valve, but like Frank I was wondering if you could provide a bit more info on the "kit". I have an early model 112 (s/n 144) so I am interested in your mod to help us get a bit more reliability zone for gear operation.
Regards - Clark
Jim,
Alright I'm in for the check valve, but like Frank I was wondering if you could provide a bit more info on the "kit". I have an early model 112 (s/n 144) so I am interested in your mod to help us get a bit more reliability zone for gear operation.
Regards - Clark
Cincinnati, OH
- Aircraft Year
- 1998
- Aircraft Type
- 114TC/115TC
- Reg Number
- N114AD
- Serial Number
- 20020
Re: Gear Checkvalve
Believe this is the underseat checkvalve. It is not a pressure switch.
Believe this is the underseat checkvalve. It is not a pressure switch.
Long Island, NY (USA)
- Aircraft Year
- 1976
- Aircraft Type
- 114
- Reg Number
- N127XY
- Serial Number
- 14039
Re: Gear Checkvalve
If you read Jim's original post, at the top of this series of posts (which I just did to reconfirm for myself), this is the "pilot check valve" under the rear seat that is already used in your 114. However, if you want a spare to have on hand then this is your opportunity to do so.
If you read Jim's original post, at the top of this series of posts (which I just did to reconfirm for myself), this is the "pilot check valve" under the rear seat that is already used in your 114. However, if you want a spare to have on hand then this is your opportunity to do so.
painlesspotter
New member
Concord, Ca.
- Aircraft Year
- 1977
- Aircraft Type
- 114
- Reg Number
- N4887W
- Serial Number
- 14217
South Burlington, VT
- Aircraft Year
- 1978 580
- Aircraft Type
- Super Commander
- Reg Number
- N555LP
- Serial Number
- 14405
Re: Gear Checkvalve
Hi All,
Confirming the subject here is the "piloted" gear down checkvalve, located under the rear seat that maintains hydraulic pressure on the extended gear.
112's up thru 380:
Did not have hydraulic locking of the gear, and thus. no valve.
This valve may be added, in combination with a down pressure switch, or not.
112's 381+ and all 112B, 112TC, 112TCA:
Had 7116-1 valves, parts no longer available.
May be superseded with the 7116-2.
114, 114B, and 114TC:
Had 7116-2 valves (in theory). We find some have 7116-1.
We have a repair kit available for the 7116-2 valves, $125.
Some valve malfunctions can be resolved with ring service, but the primary checking function is via a "trapped" seal that is not field replaceable.
The witching hour seems to have arrived on these valves. Calls are increasing.
For those 112 s/n 1 thru 380 owners interested in superseding to add the hydraulic locking feature, I will structure two kits: check only, and check/pressure.
If I do the chassis and tubing work, the labor will only be a few hours in the field. Kit price would depend on size of the build run, probably not less than $750
and not more than $1500, discounted if you already bought the valve.
For those ordering valves now, Martine is collecting the funds from you as you subscribe.
Thanks,
Jim
Hi All,
Confirming the subject here is the "piloted" gear down checkvalve, located under the rear seat that maintains hydraulic pressure on the extended gear.
112's up thru 380:
Did not have hydraulic locking of the gear, and thus. no valve.
This valve may be added, in combination with a down pressure switch, or not.
112's 381+ and all 112B, 112TC, 112TCA:
Had 7116-1 valves, parts no longer available.
May be superseded with the 7116-2.
114, 114B, and 114TC:
Had 7116-2 valves (in theory). We find some have 7116-1.
We have a repair kit available for the 7116-2 valves, $125.
Some valve malfunctions can be resolved with ring service, but the primary checking function is via a "trapped" seal that is not field replaceable.
The witching hour seems to have arrived on these valves. Calls are increasing.
For those 112 s/n 1 thru 380 owners interested in superseding to add the hydraulic locking feature, I will structure two kits: check only, and check/pressure.
If I do the chassis and tubing work, the labor will only be a few hours in the field. Kit price would depend on size of the build run, probably not less than $750
and not more than $1500, discounted if you already bought the valve.
For those ordering valves now, Martine is collecting the funds from you as you subscribe.
Thanks,
Jim
Last edited:
Glendale, AZ
- Aircraft Type
- 112TCA
- Reg Number
- N91GM
- Serial Number
- 13184
Re: Gear Checkvalve
Add me to the list for one.
Thanks
Add me to the list for one.
Thanks
Davis, CA
- Aircraft Year
- 1975
- Aircraft Type
- 112 Hot Shot
- Reg Number
- N1286J
- Serial Number
- 286
Re: Gear Checkvalve
Is that price for the check only kit or the check/pressure kit?
Regards,
Neal
Is that price for the check only kit or the check/pressure kit?
Regards,
Neal
Cincinnati, OH
- Aircraft Year
- 1998
- Aircraft Type
- 114TC/115TC
- Reg Number
- N114AD
- Serial Number
- 20020
Re: Gear Checkvalve
I did replace my cartridge a year or so after I acquired the bird some 14 years ago. Has been fine ever since. Was OEM valve if logbooks were accurate.
I did replace my cartridge a year or so after I acquired the bird some 14 years ago. Has been fine ever since. Was OEM valve if logbooks were accurate.
alandotson
New member
Full time RVer... 2010 Tiffin Phaeton 40QTH
- Aircraft Year
- 1977
- Aircraft Type
- 112TCA
- Reg Number
- N76CR
- Serial Number
- 13181
Re: Gear Checkvalve
Hi Jim,
Please add me for one, also... Been out of town and just caught up with this tread.
Thanks, Alan
Hi Jim,
Please add me for one, also... Been out of town and just caught up with this tread.
Thanks, Alan
South Burlington, VT
- Aircraft Year
- 1978 580
- Aircraft Type
- Super Commander
- Reg Number
- N555LP
- Serial Number
- 14405
Re: Gear Checkvalve
Hi All,
Thanks for joining the checkvalve order. I placed the order this morning, covering all requests through this posting.
This thread will continue to run, and may justify a subsequent order at some future time.
Jim
Hi All,
Thanks for joining the checkvalve order. I placed the order this morning, covering all requests through this posting.
This thread will continue to run, and may justify a subsequent order at some future time.
Jim
N4843W
New member
SE MI
- Aircraft Year
- 1977
- Aircraft Type
- 114
- Reg Number
- N4843W
- Serial Number
- 14173
Re: Gear Checkvalve
My pretty new check valve just arrived. Thanks, Jim.
Now, my bird is 37 years old with more than 4,000 hours. Do I just put this valve in the hangar spare parts department, put it in the bin in the back of the plane, change it out at annual as a preventative ... or change it right now?
Interested in any opinion on that.
My pretty new check valve just arrived. Thanks, Jim.
Now, my bird is 37 years old with more than 4,000 hours. Do I just put this valve in the hangar spare parts department, put it in the bin in the back of the plane, change it out at annual as a preventative ... or change it right now?
Interested in any opinion on that.