Hi Steve, Chasing wobbler problems can get very frustrating...I did an article all about livin' with wobblers for 32mm news...I will have to boot up my old computer cause I believe it is in there...I will try to have it on this board before tommorrow...
...but give me a few facts about how you are using them and these questions... Is a lubricator fitted...if so pass through or dead leg? Are you using the thick gaskets...or the thin original IP Are you are 45mm gauge or 32mm gauge. If so... are you using the gaskets to space the cylinders out to 45mm gauge. You noted in one message that you redrilled the center attaching hole as it was geometrically out of position for proper valve events. With wobblers timing is everthing... Are the drivers bang on 90degrees opposing Wheels are tight and not try to self quarter Does it run in one direction better than the other Are the little glands on the ends of the cylinders barely finger tight Make sure the trunion heads are not touching the frames. That is just a little start for now...I will try and find my article... Don't give up...they are a great way steam...all my wobbler engines have a louder chuff than slide valve...so when you get it sortted I can give you some running tips for them that slide valve engines can only dream about...all my engines are free runners no RC "light em and forget em" up hill down hill they plod along ...non of that high speed stuff. Tony ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Small-scale live steam discussions" <[email protected]> Sent: Monday, October 31, 2005 11:19 AM Subject: [SSLiveSteam] Reassembling I.P. Engineering Jane/Mamod Cylinders > After polishing with 400 and 1500 grit wet/dry, and then cleaning, the > cylinder went right back together in the reverse order, as predicted by > Tony and Sam. A compressed air test with the engine reassembled now showed > that the other cylinder was leaking air past the o-ring. The engine ran > better, but still not smoothly. > > Since the tools were all out on the workbench, I went ahead and > disassembled the other cylinder. It wasn't full of debris, but it needed > polishing. Within 2 hours it was back together with a new o-ring. > > On air the engine would start up and run smoothly. The cylinder action was > a bit tight but smooth. Under steam yesterday, however, things were not > great. > > The boiler raised steam in 5 minutes, and intitially the engine seemed > like it wanted to run. But then it got very stiff and would not turn a > full rotation, almost like there was severe priming. (Also the first > cylinder's head leaked steam, although the head was fully seated and > straight.) This continued until I shut the fire down. Subsequently it ran > again for an hour on air down to 10 psi just fine. > > Causes? Possibly insufficient steam volume. Possibly the o-rings are > still too tight and the piston's expansion with heat makes them tighter. > Possibly priming. > > I will try it under steam again before tearing into the cylinders again. > Maybe rig up a superheater to dry the steam a bit before it goes to the > engine. > > Steve > > > __________________________________________________________________ > Switch to Netscape Internet Service. > As low as $9.95 a month -- Sign up today at > http://isp.netscape.com/register > > Netscape. Just the Net You Need. > > New! Netscape Toolbar for Internet Explorer > Search from anywhere on the Web and block those annoying pop-ups. > Download now at http://channels.netscape.com/ns/search/install.jsp > _______________________________________________ > SSLiveSteam mailing list > Send messages: [email protected] > Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam > Rules: http://www.45mm.com/sslivesteam_guide.html > > _______________________________________________ SSLiveSteam mailing list Send messages: [email protected] Cancel subscription: http://postfix.45mm.com/mailman/listinfo/sslivesteam Rules: http://www.45mm.com/sslivesteam_guide.html
