Author Topic: Wall of Shame  (Read 6473 times)

Powdermonkey

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Wall of Shame
« on: March 14, 2026, 10:52:54 PM »
Well folks- I truly feel shamed in posting this, but alas....a true 8hp Dursley Lister met its maker.  Not in any "less than stellar" way!  I generate power off these engines.  This engine was set up for slow-speed operation (around 650 RPM or so), and utilized the heavier governor weights.  I'd bought if off a man in 2023 or 2024, and placed it in service in April, 2025.  It ran well, with the occasional tweak and correction, as time went on. 

But come the 10th of March, 2026, with the lights a glowing and ancillary electrical devices working (off the accompanying generator), I perceived a "flicker".  Just half a second later, the lights went out.  And right about THEN I heard (off about 50 yards or so) a loud commotion.  An unearthing of un-holy hell.  And then...a "thwack, thwack, thwack", thumps, losing time, like a wound out metronome.  Oy.....

Well, I knew good and well that SOMETHING had happened.  So, being that I didn't see smoke off yonder, I WALKED out to the generator shed.  And before I got there, knowing full well that I'd be there for a while, I stopped to water the Lillies first. 

Rounding the corner, I could smell oil.  Hmmm.....no more "thwacking" noise.  All was now quiet.  Peering into the generator shed, BOY DID I SEE an amazing sight. 

DID YOU KNOW THAT THE TOP END OF A 8 HP LISTER CAN LEVITATE OFF THE BOTTOM END, AND LAND SOME 5 FEET AWAY??  Well, I learned it the hard way, on the 10th of March. 

Now, I'm not posting this to ask anybody's thoughts on the matter.  It's more out of pure "Ripley's Believe it or Not".  It's water under the bridge now, and a DAMNED SHAME to ruin a once perfectly good Lister. 

But should you have any thoughts on the matter, I suppose it would be fun to conjecture....

dax021

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Re: Wall of Shame
« Reply #1 on: March 15, 2026, 07:45:43 AM »
Wow, wow could have happened there?  Something obviously worked loose and it shook itself apart

AdeV

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Re: Wall of Shame
« Reply #2 on: March 15, 2026, 01:28:30 PM »
Looks like the base casting has failed to me. Was it the entire top end of the engine above the crank bearings that flew? I guess with an 8hp explosion behind it, 5ft is probably about right for a launch.

Damn shame, it looks pretty irreprable; although you might get lucky & be able to salvage certain parts - the flywheels, maybe even the head/barrel if it didn't take impact damage.
Cheers!
Ade.
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1x Lister CS Start-o-Matic (complete-ish, runs)

Powdermonkey

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Re: Wall of Shame
« Reply #3 on: March 17, 2026, 01:06:21 AM »
Ade- Yes.  The pictures show the damage.  More or less, at or above the crank bearings, everything let loose.  At the time, the engine was under no strain.  Just puttering along, and only really running lights.  I had no "tough" load on it. 

I can salvage basically the entire top end, along with the idler gear.  At some point, I'll tear apart the crank, and check it for damage.  But judging by what I've seen so far, it appears that it may still be good. 

So, I'll be looking for an 8/1 "lower casting"....if anybody has one for sale?

AdeV

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Re: Wall of Shame
« Reply #4 on: March 19, 2026, 12:57:02 AM »
I don't have an 8hp engine to verify, but I think the bottom castings are the same across all 3 power levels aren't they (3.5, 6, 8 )?  i.e. any bottom end would do you. I do know the crank shaft changed diameter at some point, IIRC from 2" to 2.5", or maybe that was the 3/3.5hp version that had the thinner crank shaft?

Someone may need to keep me honest here...
Cheers!
Ade.
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1x Lister CS Start-o-Matic (complete-ish, runs)

Powdermonkey

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Re: Wall of Shame
« Reply #5 on: March 21, 2026, 10:50:03 AM »
Thank you, Adev!

dkmc

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Re: Wall of Shame
« Reply #6 on: March 23, 2026, 09:35:25 PM »


That is a rare feat. You didn't throw a rod, you threw a cylinder.
Unusual. Not good. Ugly sight.
Machinist, fabricator, designer, fixer