VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #31  
Old 11-26-2017, 02:10 PM
plehrke's Avatar
plehrke plehrke is offline
 
Join Date: Sep 2006
Location: Defiance, MO
Posts: 1,403
Default

Quote:
Originally Posted by maus92 View Post
The SDS CPI has a weatherpack-type 4 pin connector that joins the coil to a wiring harness to the cockpit controller and power. I want to hard mount the harness side to the rear baffle - is there a mounting accessory for these types of connectors? If I need to fab something, any suggestions?
Use a band clamp wrapped around the connector and attach to an adel clamp. Mine currently is attached with zip ties but will make more permanent with the band clamp next time the cowl comes off.
__________________
Philip
RV-6A - 11 years over 800 hours
Cessna 140 - 68 years over 3400 hours
Based at 1H0 (Creve Coeur)
Paid dues yearly since 2007
Reply With Quote
  #32  
Old 12-11-2017, 12:01 PM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 4,619
Default

Quote:
Originally Posted by jump4way View Post
I didnít do this with my install but I wish I had. I think these Deutsch DT connectors are really nice. They have a flange Mount version that could be mounted to the baffle. Iím using these for wing root connectors. They arenít cheap but they are good quality.

https://www.prowireusa.com/c-3-deuts...aspx?pagenum=3
These are nice connectors but the temperature specs listed here are not believable. Looks like multiple typos...
__________________

Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


Reply With Quote
  #33  
Old 12-11-2017, 12:38 PM
rv8bldr's Avatar
rv8bldr rv8bldr is offline
 
Join Date: Jan 2005
Location: Pakenham, Ontario, Canada
Posts: 557
Default

Quote:
Originally Posted by rv6ejguy View Post
These are nice connectors but the temperature specs listed here are not believable. Looks like multiple typos...
Looks like they missed the decimal points. Maybe -55.0C to +125.0C ?
__________________
Mark

RV-8 C-GURV (Flying since Nov 2004) - Sold
Scratch building 4pl Bearhawk

Vice President EAA Chapter 245
Reply With Quote
  #34  
Old 12-12-2017, 04:53 AM
jump4way jump4way is offline
 
Join Date: Sep 2008
Location: Coolidge, AZ
Posts: 284
Default

The TE connectivity site agrees with -55 to 125C which is the same on the high end as the weather pack connectors that come with the SDS harness and better on the low temperature end. Weatherpack connectors are listed as -40 to +125C. It seems like they should work.
Reply With Quote
  #35  
Old 06-05-2018, 07:47 AM
maus92 maus92 is offline
 
Join Date: Nov 2013
Location: Annapolis MD
Posts: 381
Default

Anybody running their RPM line through a G3X system (GEA24)? I have the pickup on the right mag wired to RPM 1, and the RPM output from the SDS CPI box wired to RPM 2. What config settings do you use?
__________________
CA
2000 RV-8A | O-360, FP, G3X Touch, VP-X, EarthX
Eastern Shore | KESN
Reply With Quote
  #36  
Old 06-20-2018, 05:04 AM
maus92 maus92 is offline
 
Join Date: Nov 2013
Location: Annapolis MD
Posts: 381
Default

I am at the point of installing the spark plugs. What is the best way to install the adapters? With the plugs in, or install the adapters first?

I've test fitted the adapters, and they start meeting resistance much sooner than I expected. The aviation plugs have very little until they are tight against the head, ready for torquing. Is the resistance with the (brass?) adapters by design? I don't want to destroy the threads in the head. Also, torque values?
__________________
CA
2000 RV-8A | O-360, FP, G3X Touch, VP-X, EarthX
Eastern Shore | KESN
Reply With Quote
  #37  
Old 06-20-2018, 05:21 AM
rv6ejguy's Avatar
rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 4,619
Default

Since the thread sizes are different, these 2 parts require different torque values. We torque in the adapters first at 25 ft/lbs, followed by the plugs at 18. Use only a small dab of anti seize, don't coat the threads.
__________________

Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, Marcotte M-300, IVO, RV6A C-GVZX flying from CYBW since 2003- 422 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
http://sdsefi.com/cpi.htm


Reply With Quote
  #38  
Old 07-06-2018, 07:50 PM
maus92 maus92 is offline
 
Join Date: Nov 2013
Location: Annapolis MD
Posts: 381
Default

OK, getting very close to first run / timing. I am running a split system, retaining the non-impulse right mag, and using the SDS CPI as the left ignition source. The CPI fires all top plugs.

1. I find the supplied documentation to be vague. It needs to be written in a format that holds the hands of dumb / non gear-head pilots like me. A step-wise procedure, sorta like what NASA does for their evolutions would be ideal.

2. What should the timing be for the right mag? 25 BTC?

3. I am deathly afraid of the first start up and kick back. Is this rational?

4. I've ordered this timing light from Amazon. Sufficient?
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

5. Has anyone made of YouTube video of their timing procedure? I've seen some photos of TDC markers / wires, but in my case, the baffling will interfere with setups I've seen. I'm still trying to engineer a solution.

Anybody with experience please chime in with photos / videos!
__________________
CA
2000 RV-8A | O-360, FP, G3X Touch, VP-X, EarthX
Eastern Shore | KESN
Reply With Quote
  #39  
Old 07-06-2018, 08:05 PM
Toobuilder's Avatar
Toobuilder Toobuilder is offline
 
Join Date: Jul 2009
Location: Mojave
Posts: 4,025
Default

Set the mag to fire at data plate values, but make sure it is not active on the starter.

Timing marks for the CPI can be placed anywhere convenient. Just put the engine on TDC (or 10, or 20, or whatever degrees), then add a pointer in a convenient location, and mark the ring gear.

If you want to give me a call I'm happy to walk you through it. Send me a PM and I'll shoot you the contact info.
__________________
WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.

Michael Robinson
______________
Harmon Rocket II -SDS EFI instalation in work
RV-8 - Flying
1940 Taylorcraft BL-65 -flying
Reply With Quote
  #40  
Old 07-06-2018, 09:09 PM
maus92 maus92 is offline
 
Join Date: Nov 2013
Location: Annapolis MD
Posts: 381
Default

Sealing the aluminum mag hole cover: Permatex Red RTV OK? - or a mag gasket?
__________________
CA
2000 RV-8A | O-360, FP, G3X Touch, VP-X, EarthX
Eastern Shore | KESN

Last edited by maus92 : 07-06-2018 at 09:36 PM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 01:52 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.