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  #1  
Old 05-24-2023, 01:18 PM
ten4teg ten4teg is offline
 
Join Date: Nov 2006
Location: Kenly, NC
Posts: 400
Default WTB Vans Engine Primer System for Carb Eng

I am in need of one of these if anybody has one they didn't use. an electrically activated solenoid system for priming your carbed Lycoming. Thanks
Contact: tom.gregorski@gmail.com
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  #2  
Old 05-24-2023, 07:19 PM
mike647m mike647m is offline
 
Join Date: Jan 2005
Location: Grand Haven MI
Posts: 88
Default

Tom, if your carb has an accelerator pump like most, just exercise the throttle 1-3 times before starting.

Yes, while cranking!

Last edited by mike647m : 05-25-2023 at 07:15 PM.
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  #3  
Old 05-24-2023, 08:00 PM
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jaredyates jaredyates is offline
 
Join Date: Sep 2008
Location: Hickory NC
Posts: 282
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Quote:
Originally Posted by mike647m View Post
Tom, if your carb has an accelerator pump like most, just exercise the throttle 1-3 times before starting.
Only pump while the prop is turning please!
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  #4  
Old 05-24-2023, 08:37 PM
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avrojockey avrojockey is offline
 
Join Date: Aug 2019
Location: Appleton, WI
Posts: 599
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+1 on pumping while cranking cold engine then idle to act as choke. As soon as it fires up crack throttle to maintain 1000 rip-ems.

On a normal day it takes about 2 pumps. On a cold WI day it takes at least three unless the fuel in the bowl has warmed up a bit from preheating. 100LL has lower vapor pressure and you need more gas when it's cold to create the needed vapor for ignition.

If the engine was running recently then just crack the throttle and let her chooch.

Primer systems are just another failure point that could cause fire
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RV-9A N904DC
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  #5  
Old 05-25-2023, 02:52 AM
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KatanaPilot KatanaPilot is offline
 
Join Date: Feb 2015
Location: Locust Grove, GA
Posts: 1,020
Default Primer

Quote:
Originally Posted by ten4teg View Post
I am in need of one of these if anybody has one they didn't use. an electrically activated solenoid system for priming your carbed Lycoming. Thanks
Contact: tom.gregorski@gmail.com
I think I have one. Email sent to you.
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Krea Ellis

Locust Grove, GA
DA20-A1 "Princess Amelia" - gone home to Amelia Island
RV-7A Phase 2 (Honored to be Van's "Miss July" 2021) - now at her new home in Lakeville, MN
RV-10ER officially an airplane as of 4/5/22! Headed to Evoke 7/17/23
EAA Technical Counselor
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  #6  
Old 05-26-2023, 07:47 AM
Rjk921 Rjk921 is offline
 
Join Date: May 2019
Location: Swartz Creek, MI
Posts: 26
Default Using throttle to prime - not me!

Using the throttle to prime is forcing a large quantity of raw fuel into the carb then into the cylinders. Iíve been taught not to do this due to potential of a backfire leading to an engine fire. A primer injects fuel directly into the cylinders which, l believe, is safer. Just my two cents guys.
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