Hi Max, I started a F/C 24 today and was watching to see what went on and they do travel slowly at first and then pick up speed and I believe this is where the PT fails you just can't get it to spin quite fast enough for it to fire and this is when they kick back. Never had a problem with the 460's because the blade carrier is directly on the crank and the blade carrier is much lighter than the 24 disc. I have a pile of PT bases that I can use, just have to sand them up, repair anything that needs repairing (front axle area etc) then paint 10 or so and leave them to dry. The full crank bases I have need to be found as I just stripped all the bases and stacked them all together but if you need them you are welcome to them, I need all the motors I can get for the slashers
I wonder if you have something here. I'm surprised you can even start any PT without a blade disc. Perhaps the 460 pro engine is the correct engine for a PT 24. If our PT 24 was closer to me I would be trying to build up the spinning mass under the engine. I guess these 460 pro engines are hard to come by. Alas ours is almost 2000k away.
Norm Do you have one of those engines or even just heavy blade disc boss? I reckon it would be worth a try. Then you leave the belt a lot looser It might be easier to pull over. I wonder if you could turn something up or even modify an ordinary blade disc.
There has to be a simple solution to this issue. We are not running a Victa belt. Perhaps that's something too. Belt friction etc Interesting stuff.
Just by chance our solid cast steel fairly thick engine pulley would be a bit heavier that a the normal pressed metal ones Maybe another reason why ours seems better
Hi Max/Jeff, Could be never really gave it enough thought as to the blade boss. The bloke picked up the slasher this morning and he lives right out the otherside of Melb in Fawkner. I have to drop off one of his other ones he dropped here this morning that had stopped on him (new plug was all it needed) so I might pick the PT up again and maybe have a play with the boss idea. He did say today it was always a pig to start but after I played with it earlier this year it was much easier to start. Only thing I really did there was the decomp valve with the restrictor.I do have a PT here with a much heavier blade boss so be interesting to try that one, if that doesn't work I will turn something up. Has to be an answer somewhere
On further thinking about the flywheel effect I have a number of 500 single Enfield flywheels here and I'm sure I could turn one of those down and heat shrink it onto the PT boss. Another thought I'm having is that the PT being a half crank motor only supported on the bottom side, is the fact the belt tension is part of the issue with it slightly attempting to twist the crank which doesn't happen with the F/C
I think the problem is when using a standard Power Torque motor with the v belt drive, the drive pulley is smaller than the driven pulley meaning the blade plate is no longer spinning at a 1 to 1 ratio ,this would slow down starting momentum and would require adding a little more weight to the crank to over come the kick back problem.
As we know the 460 Pro motor starts without a blade plate because the boss is heavier than the standard PT boss , looking online the Victa self propelled boss looks to have more weight too ,I guess this is the same boss for the 600.
Thanks for the offer for full crank bases ,I probably don't need them ,I just thought you may have run out of PT bases , I occasionally have too many PT bases and get rid of them ,if I know you are still collecting them I can drop some off when passing by.
Hi Max, Looks like you might be onto it although I have had a number of 600's here and they all had the standard PT boss. Thanks for the PT base offer, don't throw any out that are not rusted, they are a finite item now that they are no longer made
I had a heap of alloy base Victa mowers I used the PT's on ,the metal base ones aren't worth selling here not much interest and the time it takes to sell one i could sell 10 mowers with 4 stoke engines so metal base Victa mowers end up with 4 stroke engines but have run out of Victa 4 stroke motors at the moment .
Yes I can relate to that, this is why I got all the PT motors, the bloke wants the bases to fit 4 strokes on, I don't know where he is getting all the 4 strokes from. He was asking if I could get him any non rusty Victa bases but he knows that I need all I can to fit the PT's on. Good job on the Vortex, did you just polish it. For some reason I found the Vortex mowers very hard to move, no idea why, only thing I could put it down to was that people could not see the motor
The Vortex I used steel wool and WD40 on the plastic Norm, it came up like new almost..
I didn't have a problem selling it ,I think My price was a little higher than your price Norm,sometimes when listing cheaper items it can seam harder to sell speaking for myself , I think when listing cheap items people think that something is wrong with it.
The Vortex can sell for a good price if you get a collector, just have to price it higher than a standard mower so the average guy doesn't buy it.
Yes it sounds like NormK was pitching it at the wrong market -the common brain dead buyer. It took a collector to finally move that treasure. Unbelievable!
Red fades the most easily. I hope the WD 40 works long term.
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Yes it works long term ,it's also used on motor bike plastics ,the WD40 just mainly helps to polish off what I would call the dead /dried /powdery plastic.
Good to know another use as everyone bashes the stuff lately "oh I would never use that crap when xyz is the real deal". It released seized height adjustment joints on a side throw once after leaving it to work over a week. Wouldn't budge after spraying, but moved smoothly when I went back to it.
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!
Yes who could complain about WD 40 Mf, it will even clean a toilet.
When cleaning a toilet bowl, WD-40 works by softening the rust and lime deposits, so they can be easily wiped away. You don't need to use much of it. Simply spray on the affected area, wait a minute or two and brush it away with a regular toilet brush.
Many years ago I had to take the glass off the speedo on my 1965 Enfield Interceptor and while I had it apart I wiped the face with WD40. Instantly brought it back to the original colour. Problem is the tacho sitting beside it is still in the original faded condition and I'm not game enough to prize the bezel off just to clean the face.
Hi Max, Would you be able to weigh that heavy boss you have off a 460 if it is easy to get at, don't go to too much trouble because I think I saw one on the pile of motors I picked up recently. I will have to go through all the ones I stacked away to see if I can find it again
