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Re: Cox New Generation -- Bad Shuddering on Friction Plate when driving forward
auProspector
28/08/26 04:52 AM
Had another try at diagnosing the problem today... Pulled off the chain to isolate the shaft only, in case any issue with cogs, but problem remains. With the rear jacked up and pedal pushed forward just enough to see crack of light between right plate and cone (ensuring it makes no contact with cone to rule out any movement of the cone/pulley/clutch arm assembly), I can visibly see the gap grow/shrink very slightly on each rotation. And also same deal between left plate and cone.
So I have to assume the shaft/plates are not rotating perfectly true which is what's causing the shuddering issue... Only it's odd that it only shudders when driving forward, not in reverse.
But having already gotten shaft replaced, bearings replaced, and plates professionally machined... I'm still at a loss at what else could be causing this? Is it possible the plates are slightly wonky? Or something else I'm completely missing?
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Cox New Generation -- Bad Shuddering on Friction Plate when driving forward
auProspector
27/08/26 05:25 AM
Hi all, hoping some experienced members here, specifically with the old Cox cone/friction drive systems, can help me diagnose what's going on with my New Generation.
To give some history on my machine, I purchased it for a couple hundred bucks over a year ago, was told by previous owner it's only good for parts as engine is "worn". Ended up putting on a new head gasket, adjusting valve clearances, couple new belts, blades, and it's effectively been my primary mower on a 10 acre block all this time. Apart from occasional repairs on deck, or new belts, etc, it hasn't missed a beat.
Until recently, it started with intermittent shuddering/slipping when going up steep inclines, and would be fine otherwise... but progressively got worse to the point where even on flattish ground, if it was under a bit of load it began shuddering, only when going forward, more noticeable when I really had to engage forward peddle with some pressure... if I eased off pedal a bit wasn't as bad... but got to point where it became unusable.
Cone was pretty worn down, and plates not making full contact and a bit grooved... so figured just needed new cone and plates some machining. While I was at it, I also changed out bearings on clutch plate shaft as well as bearing on the cone pulley... and also changed drive chain out for a new one.
Problem is, after doing all this, the bloody shuddering issue is still there. Even worse perhaps.
The only clue as to what might be causing it, is when I jack the rear end up off the ground, and push pedal down so plate touches the cone, when I manually spin the wheels/shaft, I can only hear the plate making contact with the cone for a small portion of it's rotation. I'd got the plates professionally machined to match the new cone, and based on the marking left on plate after running it a little, it does appear to be making full width contact on both plates. So I thought well maybe somehow the clutch plate shaft has slightly bent or something (even though seemed incredibly hard to imagine how that could happen)... so ordered a brand new shaft, put it in today... and the damn problem is still there. I'm pretty much out of ideas on what could be causing it.
Anyone else had an issue like this? or any ideas at all on what could be causing it?
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Free to good home – 1955 Villiers reel mower
Cylon
27/08/26 03:04 AM
I’m giving away my 1955 Villiers (by Condeco) reel mower. Model 2M14 Serial # 747
I dismantled it in early 2020 with a view to restoring it, but then COVID happened, and realistically it does not look like I will ever get around to completing the project. It seems a shame to just dump it so I thought I’d offer it to someone who might like a project.
BEFORE YOU SAY YES, please read on to understand exactly what you would be getting.
Not realistic to ship it anywhere, so would have to be pick up from eastern suburbs Melbourne.
First the bad bits. • When I say “I dismantled it” I really mean it. I dismantled it to the last nut and bolt, so it is in a million pieces. • There is some damage: The crankshaft has a chunk taken out of one end. The damage was done when dismantling the Magneto from the crankshaft. Corresponding to that damage, the collar that mounts the Magneto wheel on the crankshaft is destroyed. I believe a skilled machinist could probably repair the crankshaft, and maybe fabricate a new collar. • There is a piece broken out of the cast chain guard housing. (on the bottom of the casing, doesn’t affect operation) • There is no catcher. • Might be missing one of the drive chains. • The wooden rollers from the front are pretty rotten.
The good bits: • Not too many of these left • Pretty complete (like I said, might be missing a chain) • Was a working mower prior to being parked up and forgotten 30 years ago! • I have lots of photos of the dismantle process that I can give you to help with the re assembly • Mostly stripped of paint. • I have a manual for the 98cc Villiers Mk2 midget motor
If you have further questions, let me know.
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Re: Info on Pope Rotary Valve 2T Single Cylinder Engines
BeardedBiker55
20/08/26 05:35 AM
Thanks Bruce, The only Information I have is that it is A Pope walk behind Mower Vertical Shaft Engine (2 Stoke /Single Cylinder) Rotary Valve Possibly 150cc. The bore is 2.375in (60mm) Carby is an Australian made Zenith Model Number: AH914
Not sure of Model or year I Googled AI & it said that it is from the 60's era after giving it the only numbers I found on the Flywheel cover Engine Model: 7503 -02 Serial Number: 53606
I can't post photo's of the engine because I don't know how!!! ( Not that smart) My computer skills are limited.
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Info on Pope Rotary Valve 2T Single Cylinder Engines
BeardedBiker55
18/08/26 06:21 AM
High all , I have a Pope walk behind Mower Approx 1960 era. Not sure if it is a 125cc or 150cc engine. Looking for a Workshop Manual or Parts breakdown or any information that is available to help with a restoration. I have tried Plough Book Sales in Victoria (Sent an inquiry Email) but they haven't bothered to get back to me, also Outdoor Power Equipment Australia for help also not feedback so if anyone can help with any info it would be appreciated Cheers
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New 45 project
270win
08/08/26 03:59 AM
Having gotten the resto bug recently doing a Supercut, I came across this solid deck 45 and thought I'd grab it. I know a lot of people don't rate the Kirby's and chuck B&S or Honda on them, but I'm a bit of a traditionalist and like kept things original. Just got to find a muffler to finish the motor off, or I may well fabricate my own up.....
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563
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Re: Scott Bonnar Model 17
270win
08/08/26 03:41 AM
Thread resurrection - After many years of the Supercut just sitting in the shed I decided to get onto the restoration. All that's left do is polish the gear cover and paint the catcher...
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11,856
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