spectre6573 Posted April 20, 2020 Report Share Posted April 20, 2020 Gents, For the ones that have had this installed or have done the install, can you describe your connection from the Manifold pressure inline to the nipple. I plan on tapping #4 cylinder and running a hard line with AN fittings close to the emag and then connect to the MP port on the emag. Thanks Quote Link to comment Share on other sites More sharing options...
takair Posted April 21, 2020 Report Share Posted April 21, 2020 4 hours ago, spectre6573 said: Gents, For the ones that have had this installed or have done the install, can you describe your connection from the Manifold pressure inline to the nipple. I plan on tapping #4 cylinder and running a hard line with AN fittings close to the emag and then connect to the MP port on the emag. Thanks Picture attached. My note says 1/8HBXM connector LF. Think I’m missing one of them. The other was a barbed fitting. Quote Link to comment Share on other sites More sharing options...
spectre6573 Posted April 21, 2020 Author Report Share Posted April 21, 2020 Just now, takair said: Picture attached. My note says 1/8HBXM connector LF. Think I’m missing one of them. The other was a barbed fitting. Thank you very much. Quote Link to comment Share on other sites More sharing options...
takair Posted April 21, 2020 Report Share Posted April 21, 2020 The other is 1/8 to 1/8 hose barb to MIP connector and 1/8 x 1/8 x 1/8 FIP Tee. Quote Link to comment Share on other sites More sharing options...
spectre6573 Posted April 21, 2020 Author Report Share Posted April 21, 2020 35 minutes ago, takair said: The other is 1/8 to 1/8 hose barb to MIP connector and 1/8 x 1/8 x 1/8 FIP Tee. I was trying to stay with AN fittings but these would work as well. Quote Link to comment Share on other sites More sharing options...
takair Posted April 21, 2020 Report Share Posted April 21, 2020 1 minute ago, spectre6573 said: I was trying to stay with AN fittings but these would work as well. I tried and tried, but never did come up with the right combination. Quote Link to comment Share on other sites More sharing options...
spectre6573 Posted April 21, 2020 Author Report Share Posted April 21, 2020 Just now, takair said: I tried and tried, but never did come up with the right combination. I think I will just do an AN 4d to 1/8pt to this union and get the barb like you. Won’t need the tee since I am giving the mag its own MP supply. Quote Link to comment Share on other sites More sharing options...
carusoam Posted April 21, 2020 Report Share Posted April 21, 2020 Rob, Don’t you want a hose clamp on top of the barb? I want you to have one... PP thoughts only, not familiar with aviation hose barbs... Best regards, -a- Quote Link to comment Share on other sites More sharing options...
takair Posted April 21, 2020 Report Share Posted April 21, 2020 7 minutes ago, carusoam said: Rob, Don’t you want a hose clamp on top of the barb? I want you to have one... PP thoughts only, not familiar with aviation hose barbs... Best regards, -a- Probably, but I think the only way that thing is coming off is with a blade. 1 Quote Link to comment Share on other sites More sharing options...
47U Posted April 22, 2020 Report Share Posted April 22, 2020 I replaced my left mag with the SureFly. My manifold pressure solution was to replace the manifold pressure bulkhead fitting through the firewall with a T-fitting, AN804-2. I fabricated a new hose with an Aeroquip MS27404-2D (471-2D) flared fitting and Stratoflex 193-2 hose. The fittings were from KRN Aviation Services in AZ and the hose from Aircraft Spruce. I ran the hose along the firewall and dropped it down to the left mag between the master solenoid and starter solenoid (not sure my early C is arranged the same as later production). There are a lot of right ways to make this connection, but picking up the manifold pressure at the firewall looked like a simpler and cleaner solution than new plumbing off #4 cylinder. And I think takair is right, the only way that hose is coming off the barb is with a blade. tom 2 Quote Link to comment Share on other sites More sharing options...
spectre6573 Posted April 23, 2020 Author Report Share Posted April 23, 2020 (edited) 9 hours ago, 47U said: I replaced my left mag with the SureFly. My manifold pressure solution was to replace the manifold pressure bulkhead fitting through the firewall with a T-fitting, AN804-2. I fabricated a new hose with an Aeroquip MS27404-2D (471-2D) flared fitting and Stratoflex 193-2 hose. The fittings were from KRN Aviation Services in AZ and the hose from Aircraft Spruce. I ran the hose along the firewall and dropped it down to the left mag between the master solenoid and starter solenoid (not sure my early C is arranged the same as later production). There are a lot of right ways to make this connection, but picking up the manifold pressure at the firewall looked like a simpler and cleaner solution than new plumbing off #4 cylinder. And I think takair is right, the only way that hose is coming off the barb is with a blade. tom Thanks for that. So you just left one end of the hose open with not fitting and place it around the barb on the surefly? Edited April 23, 2020 by spectre6573 Quote Link to comment Share on other sites More sharing options...
47U Posted April 23, 2020 Report Share Posted April 23, 2020 That’s correct. The open end of the hose goes on the barbed fitting on the SureFly. The 193-2 hose is thicker than the hose SureFly provided in the install kit so the interference on the barbed fitting is tighter. It’s not going anywhere. tom Quote Link to comment Share on other sites More sharing options...
Ragsf15e Posted April 23, 2020 Report Share Posted April 23, 2020 I guess I’m kinda happy to see everyone has a different solution that’s ok. The installation manual sort of leaves that open. I had a Precise Flight backup vacuum that I had removed (along with primary vac) at the same time I installed the SF. The standby vac connects to manifold pressure near the bottom of the intake tube on #4. My mechanic originally said we’d have to send out the intake tube for welding when we removed the standby vac tubing, but then he decided he could use that as our MP source for the SF. Works perfectly. 1 Quote Link to comment Share on other sites More sharing options...
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