Aerotech CV1J4

[HopePilot]

I'm picking up supplies for my upcoming annual.  I was thinking of switching to the Clear View CV1J4 air filter for my 1983 J.  Any thoughts.  Also, do I need one or two?

 

Thanks!

[thinwing]

The cv1j4 are standard equipment on my Bravo.Check out my photo gallery under new panel for a close up shot right side of engine.You require one per vacumn pump.I have two shown in photo because one is for backup vacumn pump.The obvious advantage is long life because you can directly inspect filter element.Replace when dark...hope that helps...kp couch

[HopePilot]

Appreciate it thinwing.

[rblauson]

What is this CV air fliter? Is it a replacement for the intake air filter (brackett)? I put a K&N in my J and so far it seems to work quite well. That is if Im talkig about the same filter you gents are?

Cheers

Mark

[thinwing]

Mark...the filter hope was asking about is an inline canister filter used in our instrument air vacumn systems.You probably have a vacumn pump if you use instrument air driven attitude indicator.The one in question has a clear (actually yellowish)plastic housing that allows you to view the filter pleating.Normal airbourne style filters are sealed aluminum canisters and cant be inspected...kpc

[jetdriven]

I just bought one of these for my J, but it actually is quite larger than I thought.  I know they are standard equipment on later model J's.  Does anyone have any good photos of the bracket and how it mounts?

 

thanks

 

[thinwing]

I can only speak of how Mooney mounted them on my Bravo....no bracket at all..they are supported by vacumn hose itself...mounted in most open convenient non chaffing spot....kp couch

[kortopates]

I too was surprised by the large size after ordering one and just recently gave up mounting it in the back of my 252. The problem I have is that its especially tight in a 252 dual alternator installation. My vacuum manifold where one end of the hose connects to is right in the middle of the firewall with the pump not far away on the co-pilot side, (I think the Bravo's manifold connection may be closer to the pilot side but not sure). Anyway, I even tried mounting it on the firewall with a clamp but the bends in the pneumatic 5/8th hose were excessive and I could not increase the hose bend radius sufficiently to acceptable without the hose getting in the way of hitting the second alternor pulley or belt - so I simply gave up and pulled it till I could discuss it with my IA at CrownAir. My IA showed me its possible if I really want too, but it would involve an excessive amount of looping to prevent kinking and touching - essentailly what amounted to a full loop and half. I decided I would pass on it. So I have a new CV1J4 I no longer have a need for if someone wants it. It must be easier to do in a J though.

[jetdriven]

No its about the same for a J but dont give up. Use an elbow fitting to make the tight bends.  Thats what we are going to do.  I have two hard 90's to make, with elbows.

[kortopates]

Quote: jetdriven

No its about the same for a J but dont give up. Use an elbow fitting to make the tight bends.  Thats what we are going to do.  I have two hard 90's to make, with elbows.

[jetdriven]

I havent! But I would try spruce or chief.  Maybe google it for an AN bartb fitting.

[bnicolette]

Having the the CV1J4 installed this week.  It's going to be a tight fit and am axious to see how the mechanic makes it work.

[Cruiser]

Well guys, this is definitely going to be a bit of a challenge getting this filter in where it will not be contacting anything else.  The pictures below are what my mechanic came up with on the first try, but I am not happy with this at all as it will definitely come in contact with the top cowling and I am totally against that even with some sort of cushion between the filter and cowling.  Seems it could add to any vibration already in the airplane, plus I don't want this plastic filter banging on anything!

Seems it will need some 90 degree bends like Byron was speaking of.

 

[bnicolette]

Sorry.......above post was me.

[kortopates]

Introducing 90 bends will malke your pump work much harder. That said, that's pretty much what the factory did to make the CV1J4 fit. So examine your Mooney IPC, section 37, for the Mooney specific parts they used to get a clean installation. Can't say for the J model, but the K model used several variations in the installation with different bent tubes, so for example the K model list quite a number of options. Don't know about current availability but doubt you'll find anything of the right size at Spruce.

[jetdriven]

Guys here it is from the parts catalog.   Robert at LASAR said they make #9 and #8 with the 7/8 Stratoflex and the 1/2 OD dead soft aluminum tubing.  It sounds like a giant pain in the ass.  In fact, I wouldnt have laid out 50$ for the filter if I knew it was this much work.

[bnicolette]

I went out tonight and played around with different options as I didn't want to pay $65/hr for my mechanic to figure it out.  I couldn't come up with anything that didn't just look totally rediculous while keeping the SVS in place.  So, the filter will be going back to Spruce as I don't want to give up the SVS.  At least all was not lost in this process, as we found a bad valve in the SVS and realized there was an AD out on it that none of the mechanics had caught before.  So, I have the newer SVS V1 coming and will install it.

 

[jetdriven]

Brett, how about fabbing up the elbow hoses? I have to do it too, maybe I just make 2 of each and send them to you

 

[bnicolette]

Quote: jetdriven

Brett, how about fabbing up the elbow hoses? I have to do it too, maybe I just make 2 of each and send them to you

 

[jetdriven]

I have the SVS V as well.  Give me a couple days.

 

 

[PTK]

Brett, I have the SVS V. Would it help you if I take some pics this weekend sometime and send to you?

[bnicolette]

Doc,

That would be fantastic.  Pretty please.  I'm dying to see how that all fits in there.  The new SVS valve arrived today and it will go in tomorrow.

Thank you!!

B

[smccray]

I have one of these filters in my J.  As luck would have it I even have the cowl off right now for my oil change.  I'll take a couple photos of how it fits in my engine compartment.  The vacuum line comes off the pump towards the copilot side of the plane, it does a large 180, then the air filter is immediately above the oil filter.  The air filter is only supported by the rubber vacuum line.

I didn't know this was an upgrade.

Edit- my install looks a lot like the diagram Byron posted.

[bnicolette]

Quote: smccray

Edit- my install looks a lot like the diagram Byron posted.

[smccray]

Here's the photos.  You can see the precise flight standby on the pilot side of the engine compartment.  I have high resolution photos- if you PM me your email address I'd be happy to send them to you.