Trains.com

Skookum Timing Issues (?)

1821 views
1 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    May 2017
  • 382 posts
Skookum Timing Issues (?)
Posted by xboxtravis7992 on Monday, October 22, 2018 12:40 PM

I saw a photo (which has since been removed) showing Skookum following one of her test runs with a bent rod. I am curious to know if anyone has more information on what happened. I have seen a few explinations of timing issues but not much detailed information yet on what caused the damage. 

I don't want to say this to make it sound like I am disparaging the restoration program, I personally think Skookum has been one of the most impressive restoration jobs done this year and I am excited to know its back in steam. I just want to know on a mechanical level what is going on, and what methods the crew needs to take to repair the damage. I saw some damaged parts on the NN 93 (a strut of sorts near the firebox that cracked due to heat) which was repaired only a few weeks after the break occured; so I am wondering if the same can be done to fix damaged rods. I am a mechanical engineering student, so I find this kind of troubleshooting genuinely interesting to hear about. 

  • Member since
    January 2010
  • 399 posts
Posted by seppburgh2 on Tuesday, October 23, 2018 10:19 PM

Good point, waiting to hear myself>  I'm reading M.N. Forney's Catechism of the Locomotive (Second Edition, 1890) to understand valve timing (cut-off) and excentric rod motion.  Having the details of Skookum's valve issue would be appreciated.  

Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.

Search the Community

Newsletter Sign-Up

By signing up you may also receive occasional reader surveys and special offers from Trains magazine.Please view our privacy policy