|
|
|
|
Johns Web Site
|
Date: 6-16-2016
|
Number of Hours: 4.00
|
Manual Reference:
|
Brief Description: Intake Manifold Pressure Tap
|
|
To take full advantage of the IES capability, I needed to add a pressure tap to the intake manifold, so the manifold was removed from the engine. The easiest execution for me was to modify a ¼” X 1” long bolt by drilling a 1/16” hole through the center of the bolt, and turning the end of the bolt down to accept the rubber hose. A ¼” hole was drilled in the manifold about ¾” above the carburetor flange. It turned out that this location interfered with the mixture control arm on the carburetor, so this hole was plugged with a ¼” soft rivet, sealed with tank sealant.
Another hole was drilled about 1.75” above the flange, deburred, and cleaned. Tank sealant was applied under the head of the modified bolt, and it was inserted into the hole from the inside. Additional tank sealant was applied around the bolt threads at the manifold, and a washer and nut were applied and tightened.
This new position eliminated the interference issue, so the manifold was remounted. A barbed aluminum manifold fitting (McMaster-Carr 5058K116)was mounted on the temporary firewall, and a short piece of 1/8” Tygon rubber tubing (McMaster-Carr 51075K22)connects the manifold tap to the firewall fitting. The hose will be clamped on both ends at final assembly.
Other piddley items were worked on, and some wiring issues were pondered.
|
|
Manifold Pressure Tap
|
|
|
|
Manifold Pressure Tubing
|
|
|
|
|
|
|
|
|
Copyright © 2001-2024 Matronics. All Rights Reserved.
|
