Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Builds, Repairs, Show Your Machines! => Technical Tips, Builds, and Help => Topic started by: Edward on March 16, 2019, 10:05:28 pm

Title: Re: D20 wilesco
Post by: SeeSteam on March 19, 2019, 08:39:36 pm

Same as Edward. They really quite down with oil.

Title: Re: D20 wilesco
Post by: Edward on March 19, 2019, 07:42:16 pm

I used plenty of oil on the crank and all connections and the bumbing sound pretty much went away
Well at lease it did bug me as much
Thanks for all the suggestions

Title: Re: D20 wilesco
Post by: Edward on March 19, 2019, 09:55:34 am

It’s kinda a short drive to the nut house for me now anyways!!  Ha

Title: Re: D20 wilesco
Post by: Edward on March 19, 2019, 09:54:05 am

Sounds good Atherton rpm
Mine is making the clunk on the short stoke when running 30-40 rpms
It’s not the governer I got that Quieted down

Title: Re: D20 wilesco
Post by: oilfield_steam on March 18, 2019, 06:32:34 pm

Here is Jan's/Mine running very well:

https://youtu.be/kKKHLidCQ4M

Title: Re: D20 wilesco
Post by: Jim on March 18, 2019, 07:07:06 am

Warning: Wilesco's and trying to cure knocks can drive you to the nut house :)

Title: Re: D20 wilesco
Post by: Belugawhaleman on March 18, 2019, 05:05:52 am

Mine knocked too. I found that there was slack on the big end of the connecting rod. I added a small
O-ring on the crank pin between the connecting rod and the crank and problem solved. I also put a small
amount of silicone around the exhaust pipe where it passes through the engine base underneath the engine.
It was rattling when the engine ran. The engine runs quietly now. Well,....relatively so.

Title: Re: D20 wilesco
Post by: Dr.Rev.DelmarMacReady on March 17, 2019, 08:26:10 pm

Excellent points, Scott. I just might need to go take a peek at my Wilesco engines now, just to check these items.
Thanks, sir.

Title: Re: D20 wilesco
Post by: oilfield_steam on March 17, 2019, 07:29:30 pm

Another thing to try, in fact is easier than what I posted below, so might try this first.

Unscrew the other end of the connecting rod where it screws into the crank. Then rotate the flywheel to where the crank is furthest away/outboard from the piston (ie the longest part of the stroke). Then with your hand, pull the connecting rod out to the same distance as the crank pin hole.  You might be able to feel with your fingers on the connecting rod whether the piston is hitting the cylinder end.  Repeat for the 180 degrees position of the crank, ie the most inboard travel of the crank.

You can of course do this without disconnecting the connecting rod from the crank, but I find it is easier to feel the piston hitting and so easier to diagnose.

Once again, this may not be your issue, but it is a good place to start your troubleshooting.

Title: Re: D20 wilesco
Post by: Edward on March 17, 2019, 07:15:40 pm

Thanks

Title: Re: D20 wilesco
Post by: oilfield_steam on March 17, 2019, 01:11:56 pm

Edward - Benny makes good points.

I would add that I have a nice D20 I acquired from our honored Member classixs.  A great engine out of the box, but I noticed a knock developing over time. You might check that your piston rod is not backing out of the piston.  Try removing the screw holding the connecting rod to the piston rod and then twist (turn) the piston rod clockwise to see if it feels like your are tightening it into the piston.  If the piston is traveling too much one way or the other, it may cause a knock.  May be not your issue, but it was mine.

You may have to remove the cylinder cover (shroud, painted blue or gray) to really get a good look.

Scott

Title: Re: D20 wilesco
Post by: Dr.Rev.DelmarMacReady on March 16, 2019, 10:23:09 pm

Not that I know of. My old ones seem noisy as the new ones. I know the governor makes a bit of racket. But in general, most of this type of engine are noisy in my experience. Part of the charm.

Title: D20 wilesco
Post by: Edward on March 16, 2019, 10:05:28 pm

Are there any adjustments to D20 Wilesco to reduce the knock when running at low speed?