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Engine timing

Online engine conversation from the Stationary Engine List

| December/January 2004

  • Stationary engine list

  • Stationary engine

  • Stationary engine list
  • Stationary engine

As I sit here hunched over my crystal ball, I think I see the mists within shifting. ... What's this? A flywheel? Another one ... hmmm. Does this mean a new engine on the horizon? This one is somewhat unusual - an open crank, diesel sideshaft. I think that makes it three engines for the price of one! Of course, this raises the recurring problem of storage, but one big advantage of a diesel is that there are no electrics to worry about, so it won't need to be kept warm and dry. I've lost count of what the collection is up to now, but there are certainly a few about!

List traffic has been varied over the past month, with no one subject creating an in-depth discussion, so I've gone for a guality topic, rather than quantity!

- I'm working on a 3 HP Model K Witte that I just can't get to run to suit me. The engine cranks when cold with two to four turns of the flywheels. Hot, it cranks with one to two. I have checked exhaust timing and have it set to just past top dead center, approximately 5 degrees. I have also checked spark timing and it is set around 45 degrees BTDC (got this value out of book for an earlier Witte). The engine has great compression. It has new rings and valve springs.

With all this it seems to want to continually eight-cycle, even under load.

I talked with a fellow member of this list and we were thinking it may be air leaking around the carburetor. I have inspected the throttle shaft for excess wear and checked the butterfly to see if it is sealing well; both seem okay. The fit where the carburetor slips into the head seems a little bit loose. I tried spraying penetrating oil around it with the engine running to see if it would pull it in, but I didn't notice any change. I have tried running the engine on both sides of the carburetor with the same results.

I'm suspecting the choke plate. I have tried different springs, as well as installed a new plate.


Gas Engine Magazine A_M 16Gas Engine Magazine is your best source for tractor and stationary gas engine information.  Subscribe and connect with more than 23,000 other gas engine collectors and build your knowledge, share your passion and search for parts, in the publication written by and for gas engine enthusiasts! Gas Engine Magazine brings you: restoration stories, company histories, and technical advice. Plus our Flywheel Forum column helps answer your engine inquiries!

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