wrote:=20 While working on the plane yesterday, I pulled some of the tape off = the intake manifold area and discovered two little holes in the primary = injector area, on either side of the bolt hole. They go into the primary = injector area, and there are matching holes on the stock manifold, that = look like they are connected to a manifold vacuum line.=20 Question: Has anyone used these -- or did you just block them off = with the manifold gasket. I speculate that they are used to help give a = puff of air on the injection cycle. Bill Schertz KIS Cruiser # 4045 -- Homepage: http://www.flyrotary.com/=20 Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --=20 Dave Leonard Turbo Rotary RV-6 N4VY http://members.aol.com/_ht_a/rotaryroster/index.html http://members.aol.com/_ht_a/vp4skydoc/index.html ------=_NextPart_000_00AB_01C62702.A0816410 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Thanks Dave.

Bill Schertz
KIS Cruiser # 4045

----- Original Message -----

From:=20 David=20 Leonard

To: Rotary motors in = aircraft

Sent: Tuesday, January 31, 2006 = 11:41=20 PM

Subject: [FlyRotary] Re: Small = holes in=20 Intake

Bill, you are correct that those are for manifold vacuum = line. A=20 stock gasket won't cover them it has holes to allow the signal to pass = into=20 the manifold where they are combined into one.

It makes a very nice and easy connection for your MAP = sensor. It is=20 in the perfect place (as close to the intake as possible) and combines = the 2=20 halves (as Tracy recommends you do)

I use it as my primary MAP sensor signal. I have another = one at the=20 throttle body as the secondary. Both work fine in = flight but the=20 primary seems to give a better idle.

Dave Leonard

On 1/30/06, William=20 <wschertz@ispwest.com>=20 wrote:=20

While working on the plane = yesterday, I pulled=20 some of the tape off the intake manifold area and discovered two = little=20 holes in the primary injector area, on either side of the bolt hole. = They go=20 into the primary injector area, and there are matching holes on the = stock=20 manifold, that look like they are connected to a manifold vacuum = line.=20

Question: Has anyone used these -- = or did you=20 just block them off with the manifold gasket. I speculate that they = are used=20 to help give a puff of air on the injection cycle.

Bill Schertz
KIS Cruiser #=20 4045

--
Homepage: http://www.flyrotary.com/=20
Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/

--
Dave=20 Leonard
Turbo Rotary RV-6 N4VY
http://memb= ers.aol.com/_ht_a/rotaryroster/index.html
http://members= .aol.com/_ht_a/vp4skydoc/index.html=20 ------=_NextPart_000_00AB_01C62702.A0816410--