Wren 54 SS problem
08-10-2008 | 03:51 PM
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From: richmond hill,
GA
Wren 54 SS problem
I have a Wren 54SS in my Boomer with 25 hrs on the plane and engine. The 54 has been flawless until now. I Let her sit for 4 weeks until today. I set up as normal and started the start sequence. The 54 timed out. I checked the glowplug for glow, the propane was good as well. I started the sequence and it agained timed out. I put the throttle full and the pump kicked on after a few seconds. I then started the sequence again and it fired up. Temps looked good rpms were 45K and full throttle was 154k. I flew for 4mins and landed. The boomer came to a stop and I went to full throttle but the rpms only went up to 75k or so the boomer would not budge on the grass. I walked over and she would not spool up to full power. Is this a fuel pump issue or send it in for a tune up due to the Total time 25hr? Thanks for the help. ChipperG
08-10-2008 | 04:07 PM
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From: DundasOntario, CANADA
RE: Wren 54 SS problem
Why did it only go to 154K at full power ? It should be 160K . Can you confirm that the ECU battery was healthy . What was the PW showing on the HDT ? Is a filter clogged ? A few things to consider....
Marc
Marc
08-10-2008 | 04:31 PM
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From: richmond hill,
GA
RE: Wren 54 SS problem
The rpms should be at 160k bu they were not. Ecu power was normal with a fresh charge and I just checked and it was good. Fliters are clean.
08-10-2008 | 04:56 PM
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From: kenilworth , UNITED KINGDOM
RE: Wren 54 SS problem
If the ECU pack is good and its not dumping after a run then its the pump. Try taking it out and spray some switch cleaner on the brushes and run it on a 2v battery for about an hour connected to a recirculating tank.
Jason
Jason
08-10-2008 | 05:46 PM
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From: richmond hill,
GA
RE: Wren 54 SS problem
I pulled the motor apart to get to the brushes and found a lot of wear on the brushes. One side is almost gone. I will find a new pump and see what happens. Where is a good place to get a Pump?
08-10-2008 | 06:09 PM
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From: Fond du Lac,
WI
RE: Wren 54 SS problem
I sent my Wren SS into Ron for service late July ......I dumb thumbed while starting, tipping my propane can and dumping in liquid propane. Cooked the front bearing before I figured out what was going on. His service was excellent. Great communication from the first call until he sent it back repaired. Turnaround was 7 working days, door to door.
Sure sounds like you are having a fuel pump issue with yours. No doubt Ron will fix you up in short order.
Sure sounds like you are having a fuel pump issue with yours. No doubt Ron will fix you up in short order.
08-11-2008 | 05:43 AM
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From: Decatur, IN
RE: Wren 54 SS problem
Chip,
I have the pumps in stock. If you wish...send me the motor and I'll set it up for you. Turn around is one day, and while it's here, I'll give it a look over.
Cheers,
I have the pumps in stock. If you wish...send me the motor and I'll set it up for you. Turn around is one day, and while it's here, I'll give it a look over.
Cheers,
