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Post by henri on Aug 23, 2014 18:34:38 GMT
coming along nicely , know what ya mean about mystery engines ,buyin spares for a wrong engine is a bitch, bought a few wrong ones myself,they just go in the "spares stash" an get used 1 day ,eventually,H
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benb
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Post by benb on Aug 24, 2014 13:45:48 GMT
Check the flyside crank bearing seat diameter, It will tell you if the casings are ETS type. It measures 39mm at the most accurate I could get it. What does this tell me? I am measuring the correct bearing seat right? Attachment DeletedAlso cheers for the advice tzsteve. The bushes arrived yesterday and look as if they should go in fairly easily, although the rear shock bush looks like it will be a bit of a pain. I won't be fitting them until all the casings are cleaned up and empty, but I'll use your advice!
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Post by potatopl on Aug 24, 2014 14:47:14 GMT
It measures 39mm at the most accurate I could get it. What does this tell me? I am measuring the correct bearing seat right? Yes, you've measured the right one and it tells a lot! It should be 38mm roller bearing and 24mm crankshaft, and this means the casings are ETS or late PK125XL. Considering your frame is ETS type (horn grill + panel keylocks), it has ETS blinkers and ETS rear light, the engine coould be ETS as well. Does it have SHBC 20.20 carb, and fuel level sensor in the tank? If I were you, I'd try to get hold on an ETS horncover, speedo + handlebar cover and try to bring back the stock look. Engine wise, Malossi is a good way to go The rubber bushing was a piece of cake to install for me, just sprayed the hole with WD40 and pulled the bushes with threaded bar. You can also heat up the casing a bit, so they expand.
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benb
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Post by benb on Aug 24, 2014 15:10:19 GMT
It measures 39mm at the most accurate I could get it. What does this tell me? I am measuring the correct bearing seat right? Yes, you've measured the right one and it tells a lot! It should be 38mm roller bearing and 24mm crankshaft, and this means the casings are ETS or late PK125XL. Considering your frame is ETS type (horn grill + panel keylocks), it has ETS blinkers and ETS rear light, the engine coould be ETS as well. Does it have SHBC 20.20 carb, and fuel level sensor in the tank? If I were you, I'd try to get hold on an ETS horncover, speedo + handlebar cover and try to bring back the stock look. Engine wise, Malossi is a good way to go The rubber bushing was a piece of cake to install for me, just sprayed the hole with WD40 and pulled the bushes with threaded bar. You can also heat up the casing a bit, so they expand. Thanks for the info! The carb is SHBC 19.19, but yes it does have a (non functioning) fuel level sensor in the tank. The engine number says v50, but it looks as if it has been ground down and stamped back on rather wonky. So if I were to get a new bearing set, these should fit right? I'd certainly consider bringing it back to more of a stock look if it is an ETS, but I won't be starting on the body or paint until next year anyway.
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Post by potatopl on Aug 24, 2014 16:10:22 GMT
Original look and tuned engine is the correct way to go It had 20.20 carb as stock, but since you are going for the Malossi the carb and cylinder does not matter for you anymore. Frame numbers - looks like someone tried to register the ETS as 50cc. The bearing set looks ok, but there are no dimensions or codes for the bearings, so it's best to call beedies and confirm it's for ETS casings and crank. The roller bearing should be the same as in Largeframes. About the body parts - the ones you are missing - horncover and handlebar cover might be hard to find and if you are unlucky it might take you more than nex year :[ The Handlebar cover is the same as in german PK50SS AKA PK50Lusso. The speedo looks the same as PX EFL. You are one lucky bastard!
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benb
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Posts: 32
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Post by benb on Aug 24, 2014 18:26:09 GMT
I'll probably keep a look out for the horncast and headset then. I think I might have the original toolbox (with missing lid) up in the garage roof from when I fist owned the scooter.
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benb
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Post by benb on Sept 29, 2014 21:23:38 GMT
Not much of an update unfortunately. My bike needed some work done which put a stop on the funds for the scooter for a bit. That and this bastard D bolt wouldn’t budge. No amount of heat, spray, hammering, or wiggling would get it out. Eventually I gave up and sent it off to someone to drill out. Attachment DeletedAlso the woodruff key seems to have snapped and lodged itself just right so that somehow the engine actually still ran. Attachment DeletedNow on to some questions… Obviously a new crankshaft is needed and as I’m planning to use the malossi reed valve kit I’m going down the full circle crank route. I was looking at this mazzucchelli crank from sip. It has 54mm stroke instead of the standard 51mm and a 105mm conrod instead of the standard 97mm. So a thicker base gasket is needed to compensate. This one from BGM has the same 54mm stroke and 105mm conrod. The site says it needs an 8mm base gasket. Now I must be misunderstanding something (I am still learning) but I thought that it would need a 9.5mm base gasket. 8mm from the difference in conrod length (105-97) and then 1.5mm from the difference in stroke (54-51=3mm) and then 3 divided by 2 since half the extent of the piston travel is towards BDC. What am I missing here? Do you not need a thicker base gasket if you just increase the stroke? If I was to buy the mazzucchelli crank but with the 97mm conrod would I not need a thicker base gasket at all? Any help on what I’m missing there would be great!
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Post by 3 speed Gareth on Sept 29, 2014 21:43:55 GMT
I wouldn't get the mazzy crank. I recently bought one from sip and it was complete turd. Scratches all over,it had been dropped,the polishing was dire. Plus it didn't come with the silver bearing it should have done. Ended up having it split,polished and rebalanced. Id go for the bgm if i bought another. Have a look on the pm tuning website too.
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benb
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Post by benb on Oct 2, 2014 17:16:17 GMT
I wouldn't get the mazzy crank. I recently bought one from sip and it was complete turd. Scratches all over,it had been dropped,the polishing was dire. Plus it didn't come with the silver bearing it should have done. Ended up having it split,polished and rebalanced. Id go for the bgm if i bought another. Have a look on the pm tuning website too. I wasn't really sure which one to go for, I'd heard good things about mazzy. I wonder if anyone else has had a good experience with BGM? I just need to figure out what size gasket(s) will be needed due to the increase in stroke and conrod before I go ahead and buy one!
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Post by tzsteve on Oct 2, 2014 18:42:58 GMT
BGM do some nice stuff. as for the packer, sort that out at a later date, from my experiance the sums are always wrong even after 5 years at hard sum school i still get those details wrong
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benb
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Posts: 32
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Post by benb on Oct 9, 2014 19:50:00 GMT
BGM do some nice stuff. as for the packer, sort that out at a later date, from my experiance the sums are always wrong even after 5 years at hard sum school i still get those details wrong Fair enough, I think I'll be going with the BGM one then. Most likely the 51mm stroke though. Right got a tiny bit more done today, however when getting the circlip off the driveshaft this happened (the chip). Do people think this will be alright or should I get a replacement one? If there's the slightest chance it will cause issues I'll replace it. Attachment DeletedAttachment DeletedTrying to do research at the moment to figure out what is the best clutch and gearing ratios to go with my planned set up. Any recommendations? Particularly any recommendations for the primary drive gear and gear attached to the clutch? It's 24 61 as standard currently. Parts needed so that the casings can be machined will be ordered tonight!
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Post by tzsteve on Oct 9, 2014 19:55:59 GMT
that chip will make no difference at all. look at the size of the gap right next to the chip
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Post by potatopl on Oct 9, 2014 21:36:08 GMT
I also think the chip makes no difference, although I would grind it down to a smooth surface, which helps to prevent any further cracks at this area.
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